ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …#819

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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and … #819

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6 changes: 2 additions & 4 deletions java/vector/src/main/codegen/templates/UnionVector.java
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Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -321,10 +321,8 @@ public void transfer() {

@Override
public void splitAndTransfer(int startIndex, int length) {
to.allocateNew();
for (int i = 0; i < length; i++) {
to.copyFromSafe(startIndex + i, i, org.apache.arrow.vector.complex.UnionVector.this);
}
internalMapVectorTransferPair.splitAndTransfer(startIndex, length);
typeVectorTransferPair.splitAndTransfer(startIndex, length);
to.getMutator().setValueCount(length);
}

Expand Down
52 changes: 27 additions & 25 deletions java/vector/src/main/java/org/apache/arrow/vector/BitVector.java
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Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -261,32 +261,34 @@ public void splitAndTransferTo(int startIndex, int length, BitVector target) {
int firstByte = getByteIndex(startIndex);
int byteSize = getSizeFromCount(length);
int offset = startIndex % 8;
if (offset == 0) {
target.clear();
// slice
if (target.data != null) {
target.data.release();
}
target.data = data.slice(firstByte, byteSize);
target.data.retain(1);
} else {
// Copy data
// When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
// Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
// The last byte copied to target is a bit tricky :
// 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
// 2) otherwise, copy the last byte in the same way as to the prior bytes.
target.clear();
target.allocateNew(length);
// TODO maybe do this one word at a time, rather than byte?
for(int i = 0; i < byteSize - 1; i++) {
target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
}
if (length % 8 != 0) {
target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
if (length > 0) {
if (offset == 0) {
target.clear();
// slice
if (target.data != null) {
target.data.release();
}
target.data = data.slice(firstByte, byteSize);
target.data.retain(1);
} else {
target.data.setByte(byteSize - 1,
(((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
// Copy data
// When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
// Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
// The last byte copied to target is a bit tricky :
// 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
// 2) otherwise, copy the last byte in the same way as to the prior bytes.
target.clear();
target.allocateNew(length);
// TODO maybe do this one word at a time, rather than byte?
for (int i = 0; i < byteSize - 1; i++) {
target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
}
if (length % 8 != 0) {
target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
} else {
target.data.setByte(byteSize - 1,
(((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
}
}
}
target.getMutator().setValueCount(length);
Expand Down
30 changes: 23 additions & 7 deletions java/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -38,6 +38,7 @@
import org.apache.arrow.vector.FieldVector;
import org.apache.arrow.vector.UInt4Vector;
import org.apache.arrow.vector.ValueVector;
import org.apache.arrow.vector.VarCharVector;
import org.apache.arrow.vector.ZeroVector;
import org.apache.arrow.vector.complex.impl.ComplexCopier;
import org.apache.arrow.vector.complex.impl.UnionListReader;
Expand DownExpand Up@@ -179,7 +180,11 @@ public TransferPair makeTransferPair(ValueVector target) {
private class TransferImpl implements TransferPair {

ListVector to;
TransferPair pairs[] = new TransferPair[3];
TransferPair bitsTransferPair;
TransferPair offsetsTransferPair;
TransferPair dataTransferPair;

TransferPair[] pairs;

public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
this(new ListVector(name, allocator, fieldType, callBack));
Expand All@@ -188,12 +193,13 @@ public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
public TransferImpl(ListVector to) {
this.to = to;
to.addOrGetVector(vector.getField().getFieldType());
pairs[0] = offsets.makeTransferPair(to.offsets);
pairs[1] = bits.makeTransferPair(to.bits);
offsetsTransferPair = offsets.makeTransferPair(to.offsets);
bitsTransferPair = bits.makeTransferPair(to.bits);
if (to.getDataVector() instanceof ZeroVector) {
to.addOrGetVector(vector.getField().getFieldType());
}
pairs[2] = getDataVector().makeTransferPair(to.getDataVector());
dataTransferPair = getDataVector().makeTransferPair(to.getDataVector());
pairs = new TransferPair[] { bitsTransferPair, offsetsTransferPair, dataTransferPair };
}

@Override
Expand All@@ -206,10 +212,20 @@ public void transfer() {

@Override
public void splitAndTransfer(int startIndex, int length) {
to.allocateNew();
for (int i = 0; i < length; i++) {
copyValueSafe(startIndex + i, i);
UInt4Vector.Accessor offsetVectorAccessor = ListVector.this.offsets.getAccessor();
final int startPoint = offsetVectorAccessor.get(startIndex);
final int sliceLength = offsetVectorAccessor.get(startIndex + length) - startPoint;
to.clear();
to.offsets.allocateNew(length + 1);
offsetVectorAccessor = ListVector.this.offsets.getAccessor();
final UInt4Vector.Mutator targetOffsetVectorMutator = to.offsets.getMutator();
for (int i = 0; i < length + 1; i++) {
targetOffsetVectorMutator.set(i, offsetVectorAccessor.get(startIndex + i) - startPoint);
}
bitsTransferPair.splitAndTransfer(startIndex, length);
dataTransferPair.splitAndTransfer(startPoint, sliceLength);
to.lastSet = length;
to.mutator.setValueCount(length);
}

@Override
Expand Down
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …#819

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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …
#819
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6 changes: 2 additions & 4 deletions
java/vector/src/main/codegen/templates/UnionVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -321,10 +321,8 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 to.copyFromSafe(startIndex + i, i, org.apache.arrow.vector.complex.UnionVector.this);
 }
 internalMapVectorTransferPair.splitAndTransfer(startIndex, length);
 typeVectorTransferPair.splitAndTransfer(startIndex, length);
 to.getMutator().setValueCount(length);
 }

Expand Down

52 changes: 27 additions & 25 deletions
java/vector/src/main/java/org/apache/arrow/vector/BitVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -261,32 +261,34 @@ public void splitAndTransferTo(int startIndex, int length, BitVector target) {
 int firstByte = getByteIndex(startIndex);
 int byteSize = getSizeFromCount(length);
 int offset = startIndex % 8;
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for(int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 if (length > 0) {
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for (int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 }
 }
 }
 target.getMutator().setValueCount(length);
Expand Down

30 changes: 23 additions & 7 deletions
java/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -38,6 +38,7 @@
import org.apache.arrow.vector.FieldVector;
import org.apache.arrow.vector.UInt4Vector;
import org.apache.arrow.vector.ValueVector;
import org.apache.arrow.vector.VarCharVector;
import org.apache.arrow.vector.ZeroVector;
import org.apache.arrow.vector.complex.impl.ComplexCopier;
import org.apache.arrow.vector.complex.impl.UnionListReader;
Expand DownExpand Up@@ -179,7 +180,11 @@ public TransferPair makeTransferPair(ValueVector target) {
 private class TransferImpl implements TransferPair {

 ListVector to;
 TransferPair pairs[] = new TransferPair[3];
 TransferPair bitsTransferPair;
 TransferPair offsetsTransferPair;
 TransferPair dataTransferPair;

 TransferPair[] pairs;

 public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 this(new ListVector(name, allocator, fieldType, callBack));
Expand All@@ -188,12 +193,13 @@ public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 public TransferImpl(ListVector to) {
 this.to = to;
 to.addOrGetVector(vector.getField().getFieldType());
pairs[0] = offsets.makeTransferPair(to.offsets);
pairs[1] = bits.makeTransferPair(to.bits);
offsetsTransferPair = offsets.makeTransferPair(to.offsets);
bitsTransferPair = bits.makeTransferPair(to.bits);
 if (to.getDataVector() instanceof ZeroVector) {
 to.addOrGetVector(vector.getField().getFieldType());
 }
 pairs[2] = getDataVector().makeTransferPair(to.getDataVector());
 dataTransferPair = getDataVector().makeTransferPair(to.getDataVector());
 pairs = new TransferPair[] { bitsTransferPair, offsetsTransferPair, dataTransferPair };
 }

 @Override
Expand All@@ -206,10 +212,20 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 copyValueSafe(startIndex + i, i);
 UInt4Vector.Accessor offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final int startPoint = offsetVectorAccessor.get(startIndex);
 final int sliceLength = offsetVectorAccessor.get(startIndex + length) - startPoint;
 to.clear();
 to.offsets.allocateNew(length + 1);
 offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final UInt4Vector.Mutator targetOffsetVectorMutator = to.offsets.getMutator();
 for (int i = 0; i < length + 1; i++) {
 targetOffsetVectorMutator.set(i, offsetVectorAccessor.get(startIndex + i) - startPoint);
 }
 bitsTransferPair.splitAndTransfer(startIndex, length);
 dataTransferPair.splitAndTransfer(startPoint, sliceLength);
 to.lastSet = length;
 to.mutator.setValueCount(length);
 }

 @Override
Expand Down

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …#819

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StevenMPhillips
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commit into

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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …
#819
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6 changes: 2 additions & 4 deletions
java/vector/src/main/codegen/templates/UnionVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -321,10 +321,8 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 to.copyFromSafe(startIndex + i, i, org.apache.arrow.vector.complex.UnionVector.this);
 }
 internalMapVectorTransferPair.splitAndTransfer(startIndex, length);
 typeVectorTransferPair.splitAndTransfer(startIndex, length);
 to.getMutator().setValueCount(length);
 }

Expand Down

52 changes: 27 additions & 25 deletions
java/vector/src/main/java/org/apache/arrow/vector/BitVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -261,32 +261,34 @@ public void splitAndTransferTo(int startIndex, int length, BitVector target) {
 int firstByte = getByteIndex(startIndex);
 int byteSize = getSizeFromCount(length);
 int offset = startIndex % 8;
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for(int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 if (length > 0) {
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for (int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 }
 }
 }
 target.getMutator().setValueCount(length);
Expand Down

30 changes: 23 additions & 7 deletions
java/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -38,6 +38,7 @@
import org.apache.arrow.vector.FieldVector;
import org.apache.arrow.vector.UInt4Vector;
import org.apache.arrow.vector.ValueVector;
import org.apache.arrow.vector.VarCharVector;
import org.apache.arrow.vector.ZeroVector;
import org.apache.arrow.vector.complex.impl.ComplexCopier;
import org.apache.arrow.vector.complex.impl.UnionListReader;
Expand DownExpand Up@@ -179,7 +180,11 @@ public TransferPair makeTransferPair(ValueVector target) {
 private class TransferImpl implements TransferPair {

 ListVector to;
 TransferPair pairs[] = new TransferPair[3];
 TransferPair bitsTransferPair;
 TransferPair offsetsTransferPair;
 TransferPair dataTransferPair;

 TransferPair[] pairs;

 public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 this(new ListVector(name, allocator, fieldType, callBack));
Expand All@@ -188,12 +193,13 @@ public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 public TransferImpl(ListVector to) {
 this.to = to;
 to.addOrGetVector(vector.getField().getFieldType());
pairs[0] = offsets.makeTransferPair(to.offsets);
pairs[1] = bits.makeTransferPair(to.bits);
offsetsTransferPair = offsets.makeTransferPair(to.offsets);
bitsTransferPair = bits.makeTransferPair(to.bits);
 if (to.getDataVector() instanceof ZeroVector) {
 to.addOrGetVector(vector.getField().getFieldType());
 }
 pairs[2] = getDataVector().makeTransferPair(to.getDataVector());
 dataTransferPair = getDataVector().makeTransferPair(to.getDataVector());
 pairs = new TransferPair[] { bitsTransferPair, offsetsTransferPair, dataTransferPair };
 }

 @Override
Expand All@@ -206,10 +212,20 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 copyValueSafe(startIndex + i, i);
 UInt4Vector.Accessor offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final int startPoint = offsetVectorAccessor.get(startIndex);
 final int sliceLength = offsetVectorAccessor.get(startIndex + length) - startPoint;
 to.clear();
 to.offsets.allocateNew(length + 1);
 offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final UInt4Vector.Mutator targetOffsetVectorMutator = to.offsets.getMutator();
 for (int i = 0; i < length + 1; i++) {
 targetOffsetVectorMutator.set(i, offsetVectorAccessor.get(startIndex + i) - startPoint);
 }
 bitsTransferPair.splitAndTransfer(startIndex, length);
 dataTransferPair.splitAndTransfer(startPoint, sliceLength);
 to.lastSet = length;
 to.mutator.setValueCount(length);
 }

 @Override
Expand Down

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …#819

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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …
#819
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6 changes: 2 additions & 4 deletions
java/vector/src/main/codegen/templates/UnionVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -321,10 +321,8 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 to.copyFromSafe(startIndex + i, i, org.apache.arrow.vector.complex.UnionVector.this);
 }
 internalMapVectorTransferPair.splitAndTransfer(startIndex, length);
 typeVectorTransferPair.splitAndTransfer(startIndex, length);
 to.getMutator().setValueCount(length);
 }

Expand Down

52 changes: 27 additions & 25 deletions
java/vector/src/main/java/org/apache/arrow/vector/BitVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -261,32 +261,34 @@ public void splitAndTransferTo(int startIndex, int length, BitVector target) {
 int firstByte = getByteIndex(startIndex);
 int byteSize = getSizeFromCount(length);
 int offset = startIndex % 8;
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for(int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 if (length > 0) {
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for (int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 }
 }
 }
 target.getMutator().setValueCount(length);
Expand Down

30 changes: 23 additions & 7 deletions
java/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -38,6 +38,7 @@
import org.apache.arrow.vector.FieldVector;
import org.apache.arrow.vector.UInt4Vector;
import org.apache.arrow.vector.ValueVector;
import org.apache.arrow.vector.VarCharVector;
import org.apache.arrow.vector.ZeroVector;
import org.apache.arrow.vector.complex.impl.ComplexCopier;
import org.apache.arrow.vector.complex.impl.UnionListReader;
Expand DownExpand Up@@ -179,7 +180,11 @@ public TransferPair makeTransferPair(ValueVector target) {
 private class TransferImpl implements TransferPair {

 ListVector to;
 TransferPair pairs[] = new TransferPair[3];
 TransferPair bitsTransferPair;
 TransferPair offsetsTransferPair;
 TransferPair dataTransferPair;

 TransferPair[] pairs;

 public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 this(new ListVector(name, allocator, fieldType, callBack));
Expand All@@ -188,12 +193,13 @@ public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 public TransferImpl(ListVector to) {
 this.to = to;
 to.addOrGetVector(vector.getField().getFieldType());
pairs[0] = offsets.makeTransferPair(to.offsets);
pairs[1] = bits.makeTransferPair(to.bits);
offsetsTransferPair = offsets.makeTransferPair(to.offsets);
bitsTransferPair = bits.makeTransferPair(to.bits);
 if (to.getDataVector() instanceof ZeroVector) {
 to.addOrGetVector(vector.getField().getFieldType());
 }
 pairs[2] = getDataVector().makeTransferPair(to.getDataVector());
 dataTransferPair = getDataVector().makeTransferPair(to.getDataVector());
 pairs = new TransferPair[] { bitsTransferPair, offsetsTransferPair, dataTransferPair };
 }

 @Override
Expand All@@ -206,10 +212,20 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 copyValueSafe(startIndex + i, i);
 UInt4Vector.Accessor offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final int startPoint = offsetVectorAccessor.get(startIndex);
 final int sliceLength = offsetVectorAccessor.get(startIndex + length) - startPoint;
 to.clear();
 to.offsets.allocateNew(length + 1);
 offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final UInt4Vector.Mutator targetOffsetVectorMutator = to.offsets.getMutator();
 for (int i = 0; i < length + 1; i++) {
 targetOffsetVectorMutator.set(i, offsetVectorAccessor.get(startIndex + i) - startPoint);
 }
 bitsTransferPair.splitAndTransfer(startIndex, length);
 dataTransferPair.splitAndTransfer(startPoint, sliceLength);
 to.lastSet = length;
 to.mutator.setValueCount(length);
 }

 @Override
Expand Down

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …#819

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 Closed

StevenMPhillips
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commit into

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 Closed


ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …
#819
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6 changes: 2 additions & 4 deletions
java/vector/src/main/codegen/templates/UnionVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -321,10 +321,8 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 to.copyFromSafe(startIndex + i, i, org.apache.arrow.vector.complex.UnionVector.this);
 }
 internalMapVectorTransferPair.splitAndTransfer(startIndex, length);
 typeVectorTransferPair.splitAndTransfer(startIndex, length);
 to.getMutator().setValueCount(length);
 }

Expand Down

52 changes: 27 additions & 25 deletions
java/vector/src/main/java/org/apache/arrow/vector/BitVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -261,32 +261,34 @@ public void splitAndTransferTo(int startIndex, int length, BitVector target) {
 int firstByte = getByteIndex(startIndex);
 int byteSize = getSizeFromCount(length);
 int offset = startIndex % 8;
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for(int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 if (length > 0) {
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for (int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 }
 }
 }
 target.getMutator().setValueCount(length);
Expand Down

30 changes: 23 additions & 7 deletions
java/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -38,6 +38,7 @@
import org.apache.arrow.vector.FieldVector;
import org.apache.arrow.vector.UInt4Vector;
import org.apache.arrow.vector.ValueVector;
import org.apache.arrow.vector.VarCharVector;
import org.apache.arrow.vector.ZeroVector;
import org.apache.arrow.vector.complex.impl.ComplexCopier;
import org.apache.arrow.vector.complex.impl.UnionListReader;
Expand DownExpand Up@@ -179,7 +180,11 @@ public TransferPair makeTransferPair(ValueVector target) {
 private class TransferImpl implements TransferPair {

 ListVector to;
 TransferPair pairs[] = new TransferPair[3];
 TransferPair bitsTransferPair;
 TransferPair offsetsTransferPair;
 TransferPair dataTransferPair;

 TransferPair[] pairs;

 public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 this(new ListVector(name, allocator, fieldType, callBack));
Expand All@@ -188,12 +193,13 @@ public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 public TransferImpl(ListVector to) {
 this.to = to;
 to.addOrGetVector(vector.getField().getFieldType());
pairs[0] = offsets.makeTransferPair(to.offsets);
pairs[1] = bits.makeTransferPair(to.bits);
offsetsTransferPair = offsets.makeTransferPair(to.offsets);
bitsTransferPair = bits.makeTransferPair(to.bits);
 if (to.getDataVector() instanceof ZeroVector) {
 to.addOrGetVector(vector.getField().getFieldType());
 }
 pairs[2] = getDataVector().makeTransferPair(to.getDataVector());
 dataTransferPair = getDataVector().makeTransferPair(to.getDataVector());
 pairs = new TransferPair[] { bitsTransferPair, offsetsTransferPair, dataTransferPair };
 }

 @Override
Expand All@@ -206,10 +212,20 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 copyValueSafe(startIndex + i, i);
 UInt4Vector.Accessor offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final int startPoint = offsetVectorAccessor.get(startIndex);
 final int sliceLength = offsetVectorAccessor.get(startIndex + length) - startPoint;
 to.clear();
 to.offsets.allocateNew(length + 1);
 offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final UInt4Vector.Mutator targetOffsetVectorMutator = to.offsets.getMutator();
 for (int i = 0; i < length + 1; i++) {
 targetOffsetVectorMutator.set(i, offsetVectorAccessor.get(startIndex + i) - startPoint);
 }
 bitsTransferPair.splitAndTransfer(startIndex, length);
 dataTransferPair.splitAndTransfer(startPoint, sliceLength);
 to.lastSet = length;
 to.mutator.setValueCount(length);
 }

 @Override
Expand Down

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …#819

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StevenMPhillips
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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …
#819
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6 changes: 2 additions & 4 deletions
java/vector/src/main/codegen/templates/UnionVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -321,10 +321,8 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 to.copyFromSafe(startIndex + i, i, org.apache.arrow.vector.complex.UnionVector.this);
 }
 internalMapVectorTransferPair.splitAndTransfer(startIndex, length);
 typeVectorTransferPair.splitAndTransfer(startIndex, length);
 to.getMutator().setValueCount(length);
 }

Expand Down

52 changes: 27 additions & 25 deletions
java/vector/src/main/java/org/apache/arrow/vector/BitVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -261,32 +261,34 @@ public void splitAndTransferTo(int startIndex, int length, BitVector target) {
 int firstByte = getByteIndex(startIndex);
 int byteSize = getSizeFromCount(length);
 int offset = startIndex % 8;
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for(int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 if (length > 0) {
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for (int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 }
 }
 }
 target.getMutator().setValueCount(length);
Expand Down

30 changes: 23 additions & 7 deletions
java/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -38,6 +38,7 @@
import org.apache.arrow.vector.FieldVector;
import org.apache.arrow.vector.UInt4Vector;
import org.apache.arrow.vector.ValueVector;
import org.apache.arrow.vector.VarCharVector;
import org.apache.arrow.vector.ZeroVector;
import org.apache.arrow.vector.complex.impl.ComplexCopier;
import org.apache.arrow.vector.complex.impl.UnionListReader;
Expand DownExpand Up@@ -179,7 +180,11 @@ public TransferPair makeTransferPair(ValueVector target) {
 private class TransferImpl implements TransferPair {

 ListVector to;
 TransferPair pairs[] = new TransferPair[3];
 TransferPair bitsTransferPair;
 TransferPair offsetsTransferPair;
 TransferPair dataTransferPair;

 TransferPair[] pairs;

 public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 this(new ListVector(name, allocator, fieldType, callBack));
Expand All@@ -188,12 +193,13 @@ public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 public TransferImpl(ListVector to) {
 this.to = to;
 to.addOrGetVector(vector.getField().getFieldType());
pairs[0] = offsets.makeTransferPair(to.offsets);
pairs[1] = bits.makeTransferPair(to.bits);
offsetsTransferPair = offsets.makeTransferPair(to.offsets);
bitsTransferPair = bits.makeTransferPair(to.bits);
 if (to.getDataVector() instanceof ZeroVector) {
 to.addOrGetVector(vector.getField().getFieldType());
 }
 pairs[2] = getDataVector().makeTransferPair(to.getDataVector());
 dataTransferPair = getDataVector().makeTransferPair(to.getDataVector());
 pairs = new TransferPair[] { bitsTransferPair, offsetsTransferPair, dataTransferPair };
 }

 @Override
Expand All@@ -206,10 +212,20 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 copyValueSafe(startIndex + i, i);
 UInt4Vector.Accessor offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final int startPoint = offsetVectorAccessor.get(startIndex);
 final int sliceLength = offsetVectorAccessor.get(startIndex + length) - startPoint;
 to.clear();
 to.offsets.allocateNew(length + 1);
 offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final UInt4Vector.Mutator targetOffsetVectorMutator = to.offsets.getMutator();
 for (int i = 0; i < length + 1; i++) {
 targetOffsetVectorMutator.set(i, offsetVectorAccessor.get(startIndex + i) - startPoint);
 }
 bitsTransferPair.splitAndTransfer(startIndex, length);
 dataTransferPair.splitAndTransfer(startPoint, sliceLength);
 to.lastSet = length;
 to.mutator.setValueCount(length);
 }

 @Override
Expand Down

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …#819

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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …
#819
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6 changes: 2 additions & 4 deletions
java/vector/src/main/codegen/templates/UnionVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -321,10 +321,8 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 to.copyFromSafe(startIndex + i, i, org.apache.arrow.vector.complex.UnionVector.this);
 }
 internalMapVectorTransferPair.splitAndTransfer(startIndex, length);
 typeVectorTransferPair.splitAndTransfer(startIndex, length);
 to.getMutator().setValueCount(length);
 }

Expand Down

52 changes: 27 additions & 25 deletions
java/vector/src/main/java/org/apache/arrow/vector/BitVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -261,32 +261,34 @@ public void splitAndTransferTo(int startIndex, int length, BitVector target) {
 int firstByte = getByteIndex(startIndex);
 int byteSize = getSizeFromCount(length);
 int offset = startIndex % 8;
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for(int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 if (length > 0) {
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for (int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 }
 }
 }
 target.getMutator().setValueCount(length);
Expand Down

30 changes: 23 additions & 7 deletions
java/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -38,6 +38,7 @@
import org.apache.arrow.vector.FieldVector;
import org.apache.arrow.vector.UInt4Vector;
import org.apache.arrow.vector.ValueVector;
import org.apache.arrow.vector.VarCharVector;
import org.apache.arrow.vector.ZeroVector;
import org.apache.arrow.vector.complex.impl.ComplexCopier;
import org.apache.arrow.vector.complex.impl.UnionListReader;
Expand DownExpand Up@@ -179,7 +180,11 @@ public TransferPair makeTransferPair(ValueVector target) {
 private class TransferImpl implements TransferPair {

 ListVector to;
 TransferPair pairs[] = new TransferPair[3];
 TransferPair bitsTransferPair;
 TransferPair offsetsTransferPair;
 TransferPair dataTransferPair;

 TransferPair[] pairs;

 public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 this(new ListVector(name, allocator, fieldType, callBack));
Expand All@@ -188,12 +193,13 @@ public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 public TransferImpl(ListVector to) {
 this.to = to;
 to.addOrGetVector(vector.getField().getFieldType());
pairs[0] = offsets.makeTransferPair(to.offsets);
pairs[1] = bits.makeTransferPair(to.bits);
offsetsTransferPair = offsets.makeTransferPair(to.offsets);
bitsTransferPair = bits.makeTransferPair(to.bits);
 if (to.getDataVector() instanceof ZeroVector) {
 to.addOrGetVector(vector.getField().getFieldType());
 }
 pairs[2] = getDataVector().makeTransferPair(to.getDataVector());
 dataTransferPair = getDataVector().makeTransferPair(to.getDataVector());
 pairs = new TransferPair[] { bitsTransferPair, offsetsTransferPair, dataTransferPair };
 }

 @Override
Expand All@@ -206,10 +212,20 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 copyValueSafe(startIndex + i, i);
 UInt4Vector.Accessor offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final int startPoint = offsetVectorAccessor.get(startIndex);
 final int sliceLength = offsetVectorAccessor.get(startIndex + length) - startPoint;
 to.clear();
 to.offsets.allocateNew(length + 1);
 offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final UInt4Vector.Mutator targetOffsetVectorMutator = to.offsets.getMutator();
 for (int i = 0; i < length + 1; i++) {
 targetOffsetVectorMutator.set(i, offsetVectorAccessor.get(startIndex + i) - startPoint);
 }
 bitsTransferPair.splitAndTransfer(startIndex, length);
 dataTransferPair.splitAndTransfer(startPoint, sliceLength);
 to.lastSet = length;
 to.mutator.setValueCount(length);
 }

 @Override
Expand Down

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …#819

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 Closed

StevenMPhillips
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commit into

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ARROW-1192: [JAVA] Use buffer slice for splitAndTransfer in List and …
#819
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6 changes: 2 additions & 4 deletions
java/vector/src/main/codegen/templates/UnionVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -321,10 +321,8 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 to.copyFromSafe(startIndex + i, i, org.apache.arrow.vector.complex.UnionVector.this);
 }
 internalMapVectorTransferPair.splitAndTransfer(startIndex, length);
 typeVectorTransferPair.splitAndTransfer(startIndex, length);
 to.getMutator().setValueCount(length);
 }

Expand Down

52 changes: 27 additions & 25 deletions
java/vector/src/main/java/org/apache/arrow/vector/BitVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -261,32 +261,34 @@ public void splitAndTransferTo(int startIndex, int length, BitVector target) {
 int firstByte = getByteIndex(startIndex);
 int byteSize = getSizeFromCount(length);
 int offset = startIndex % 8;
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for(int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 if (length > 0) {
 if (offset == 0) {
 target.clear();
 // slice
 if (target.data != null) {
 target.data.release();
 }
 target.data = data.slice(firstByte, byteSize);
 target.data.retain(1);
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 // Copy data
 // When the first bit starts from the middle of a byte (offset != 0), copy data from src BitVector.
 // Each byte in the target is composed by a part in i-th byte, another part in (i+1)-th byte.
 // The last byte copied to target is a bit tricky :
 // 1) if length requires partly byte (length % 8 !=0), copy the remaining bits only.
 // 2) otherwise, copy the last byte in the same way as to the prior bytes.
 target.clear();
 target.allocateNew(length);
 // TODO maybe do this one word at a time, rather than byte?
 for (int i = 0; i < byteSize - 1; i++) {
 target.data.setByte(i, (((this.data.getByte(firstByte + i) & 0xFF) >>> offset) + (this.data.getByte(firstByte + i + 1) << (8 - offset))));
 }
 if (length % 8 != 0) {
 target.data.setByte(byteSize - 1, ((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset));
 } else {
 target.data.setByte(byteSize - 1,
 (((this.data.getByte(firstByte + byteSize - 1) & 0xFF) >>> offset) + (this.data.getByte(firstByte + byteSize) << (8 - offset))));
 }
 }
 }
 target.getMutator().setValueCount(length);
Expand Down

30 changes: 23 additions & 7 deletions
java/vector/src/main/java/org/apache/arrow/vector/complex/ListVector.java

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -38,6 +38,7 @@
import org.apache.arrow.vector.FieldVector;
import org.apache.arrow.vector.UInt4Vector;
import org.apache.arrow.vector.ValueVector;
import org.apache.arrow.vector.VarCharVector;
import org.apache.arrow.vector.ZeroVector;
import org.apache.arrow.vector.complex.impl.ComplexCopier;
import org.apache.arrow.vector.complex.impl.UnionListReader;
Expand DownExpand Up@@ -179,7 +180,11 @@ public TransferPair makeTransferPair(ValueVector target) {
 private class TransferImpl implements TransferPair {

 ListVector to;
 TransferPair pairs[] = new TransferPair[3];
 TransferPair bitsTransferPair;
 TransferPair offsetsTransferPair;
 TransferPair dataTransferPair;

 TransferPair[] pairs;

 public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 this(new ListVector(name, allocator, fieldType, callBack));
Expand All@@ -188,12 +193,13 @@ public TransferImpl(String name, BufferAllocator allocator, CallBack callBack) {
 public TransferImpl(ListVector to) {
 this.to = to;
 to.addOrGetVector(vector.getField().getFieldType());
pairs[0] = offsets.makeTransferPair(to.offsets);
pairs[1] = bits.makeTransferPair(to.bits);
offsetsTransferPair = offsets.makeTransferPair(to.offsets);
bitsTransferPair = bits.makeTransferPair(to.bits);
 if (to.getDataVector() instanceof ZeroVector) {
 to.addOrGetVector(vector.getField().getFieldType());
 }
 pairs[2] = getDataVector().makeTransferPair(to.getDataVector());
 dataTransferPair = getDataVector().makeTransferPair(to.getDataVector());
 pairs = new TransferPair[] { bitsTransferPair, offsetsTransferPair, dataTransferPair };
 }

 @Override
Expand All@@ -206,10 +212,20 @@ public void transfer() {

 @Override
 public void splitAndTransfer(int startIndex, int length) {
 to.allocateNew();
 for (int i = 0; i < length; i++) {
 copyValueSafe(startIndex + i, i);
 UInt4Vector.Accessor offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final int startPoint = offsetVectorAccessor.get(startIndex);
 final int sliceLength = offsetVectorAccessor.get(startIndex + length) - startPoint;
 to.clear();
 to.offsets.allocateNew(length + 1);
 offsetVectorAccessor = ListVector.this.offsets.getAccessor();
 final UInt4Vector.Mutator targetOffsetVectorMutator = to.offsets.getMutator();
 for (int i = 0; i < length + 1; i++) {
 targetOffsetVectorMutator.set(i, offsetVectorAccessor.get(startIndex + i) - startPoint);
 }
 bitsTransferPair.splitAndTransfer(startIndex, length);
 dataTransferPair.splitAndTransfer(startPoint, sliceLength);
 to.lastSet = length;
 to.mutator.setValueCount(length);
 }

 @Override
Expand Down