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src
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LICENSE.md
LICENSE.md
README.md
README.md
build.bat
build.bat

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Log4JDash

A log4j XML log files parser library and Web viewer.

Log4JDash project consists of the following parts:

  • Log4JParserC - a native log4j XML log parser exposing C API. The library allows to enumerate and filter events in the logs.
  • Log4JParserCpp and Log4JParserNet - C++ and .NET wrappers for the Log4JParserC library.
  • Log4JDash and Log4JParserDashNet - sample console log viewers for evalutaing C++ and .NET wrappers and estimating parser performance.
  • Log4JDash.Web - ASP.NET MVC 5 web application for viewing log4j XML logs remotely.

Log4JParserC

The XML log parser core implementation. The library provides a C API for enumearting and filtering events in log4j XML log files. The API also defines strings used to define log event levels.

The log level strings are based on log4net log levels. log4net defines more levels than log4j 2 and it uses inverted notion of order of levels. For example, in log4j 2 numeric value for DEBUG is 500 and numeric value for FATAL is 100; in log4net numeric value for DEBUG is 30000 and numeric value for FATAL is 110000. This affects the notion of minimum and maximum levels when filtering the events.

The parser is mostly implemented in C with XML parsing done in C++ using RapidXml library. Use of native in-situ XML parsing allows to reach high performance even on large log files.

Log4JParserCpp

The C++ XML log parser library. The library API is close to Log4JParserC but it takes advantage of RAII idiom.

Log4JParserDashNet

.NET API is different from Log4JParserC in events enumeration to better match .NET collection idioms.

Please note that while it is possible to manipulate event collections in .NET with LINQ to Objects IEnumerable extension methods it is advisable to use the methods of IEnumerableOfEvents interface to reduce switching between managed and unmanaged code.

DisposableCollection class is also provided for easier buildup of event filters. Please not that complex filters (such as And, Or and Not filters) do not take ownership of its parts, i.e. child filters must be explicitly disposed by the client code.

Building

Use build.bat script to build Log4JParserC, Log4JParserCpp Log4JParserDashNet and Log4JDash.Web projects. Use serc\build.proj targets BuildParserC, BuildParserCpp, BuildParserNet and BuildDashWeb to build a specific project.

All build outputs are placed in 'out' folder. Folder 'build' contains intermediate build outputs.

About

A log4j XML log files parser library and Web viewer.

Topics

log4net

Resources

Readme
MIT license
Activity

Stars

2 stars

Watchers

1 watching

Forks

1 fork
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
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;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} 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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build.bat
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Repository files navigation
Log4JDash
A log4j XML log files parser library and Web viewer.
Log4JDash project consists of the following parts:
  • Log4JParserC - a native log4j XML log parser exposing C API. The library allows to enumerate and
filter events in the logs.
  • Log4JParserCpp and Log4JParserNet - C++ and .NET wrappers for the Log4JParserC library.
  • Log4JDash and Log4JParserDashNet - sample console log viewers for evalutaing C++ and .NET
wrappers and estimating parser performance.
  • Log4JDash.Web - ASP.NET MVC 5 web application for viewing log4j XML logs remotely.
Log4JParserC
The XML log parser core implementation. The library provides a C API for enumearting and filtering
events in log4j XML log files. The API also defines strings used to define log event levels.
The log level strings are based on log4net log levels. log4net defines more levels than log4j 2
and it uses inverted notion of order of levels. For example, in log4j 2 numeric value for DEBUG is
500 and numeric value for FATAL is 100; in log4net numeric value for DEBUG is 30000 and numeric
value for FATAL is 110000. This affects the notion of minimum and maximum levels when filtering the
events.
The parser is mostly implemented in C with XML parsing done in C++ using RapidXml library. Use of
native in-situ XML parsing allows to reach high
performance even on large log files.
Log4JParserCpp
The C++ XML log parser library. The library API is close to Log4JParserC but it takes advantage of
RAII idiom.
Log4JParserDashNet
.NET API is different from Log4JParserC in events enumeration to better match .NET collection
idioms.
Please note that while it is possible to manipulate event collections in .NET with LINQ to Objects
IEnumerable extension methods it is advisable to use the methods of IEnumerableOfEvents
interface to reduce switching between managed and unmanaged code.
DisposableCollection class is also provided for easier buildup of event filters. Please not that
complex filters (such as And, Or and Not filters) do not take ownership of its parts, i.e.
child filters must be explicitly disposed by the client code.
Building
Use build.bat script to build Log4JParserC, Log4JParserCpp Log4JParserDashNet and Log4JDash.Web
projects. Use serc\build.proj targets BuildParserC, BuildParserCpp, BuildParserNet and BuildDashWeb
to build a specific project.
All build outputs are placed in 'out' folder. Folder 'build' contains intermediate build outputs.
About
A log4j XML log files parser library and Web viewer.
Topics
log4net
Resources
Readme
MIT license
Activity
Stars
2 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

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

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LICENSE.md
LICENSE.md
README.md
README.md
build.bat
build.bat
Repository files navigation
Log4JDash
A log4j XML log files parser library and Web viewer.
Log4JDash project consists of the following parts:
  • Log4JParserC - a native log4j XML log parser exposing C API. The library allows to enumerate and
filter events in the logs.
  • Log4JParserCpp and Log4JParserNet - C++ and .NET wrappers for the Log4JParserC library.
  • Log4JDash and Log4JParserDashNet - sample console log viewers for evalutaing C++ and .NET
wrappers and estimating parser performance.
  • Log4JDash.Web - ASP.NET MVC 5 web application for viewing log4j XML logs remotely.
Log4JParserC
The XML log parser core implementation. The library provides a C API for enumearting and filtering
events in log4j XML log files. The API also defines strings used to define log event levels.
The log level strings are based on log4net log levels. log4net defines more levels than log4j 2
and it uses inverted notion of order of levels. For example, in log4j 2 numeric value for DEBUG is
500 and numeric value for FATAL is 100; in log4net numeric value for DEBUG is 30000 and numeric
value for FATAL is 110000. This affects the notion of minimum and maximum levels when filtering the
events.
The parser is mostly implemented in C with XML parsing done in C++ using RapidXml library. Use of
native in-situ XML parsing allows to reach high
performance even on large log files.
Log4JParserCpp
The C++ XML log parser library. The library API is close to Log4JParserC but it takes advantage of
RAII idiom.
Log4JParserDashNet
.NET API is different from Log4JParserC in events enumeration to better match .NET collection
idioms.
Please note that while it is possible to manipulate event collections in .NET with LINQ to Objects
IEnumerable extension methods it is advisable to use the methods of IEnumerableOfEvents
interface to reduce switching between managed and unmanaged code.
DisposableCollection class is also provided for easier buildup of event filters. Please not that
complex filters (such as And, Or and Not filters) do not take ownership of its parts, i.e.
child filters must be explicitly disposed by the client code.
Building
Use build.bat script to build Log4JParserC, Log4JParserCpp Log4JParserDashNet and Log4JDash.Web
projects. Use serc\build.proj targets BuildParserC, BuildParserCpp, BuildParserNet and BuildDashWeb
to build a specific project.
All build outputs are placed in 'out' folder. Folder 'build' contains intermediate build outputs.
About
A log4j XML log files parser library and Web viewer.
Topics
log4net
Resources
Readme
MIT license
Activity
Stars
2 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

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

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LICENSE.md
README.md
README.md
build.bat
build.bat
Repository files navigation
Log4JDash
A log4j XML log files parser library and Web viewer.
Log4JDash project consists of the following parts:
  • Log4JParserC - a native log4j XML log parser exposing C API. The library allows to enumerate and
filter events in the logs.
  • Log4JParserCpp and Log4JParserNet - C++ and .NET wrappers for the Log4JParserC library.
  • Log4JDash and Log4JParserDashNet - sample console log viewers for evalutaing C++ and .NET
wrappers and estimating parser performance.
  • Log4JDash.Web - ASP.NET MVC 5 web application for viewing log4j XML logs remotely.
Log4JParserC
The XML log parser core implementation. The library provides a C API for enumearting and filtering
events in log4j XML log files. The API also defines strings used to define log event levels.
The log level strings are based on log4net log levels. log4net defines more levels than log4j 2
and it uses inverted notion of order of levels. For example, in log4j 2 numeric value for DEBUG is
500 and numeric value for FATAL is 100; in log4net numeric value for DEBUG is 30000 and numeric
value for FATAL is 110000. This affects the notion of minimum and maximum levels when filtering the
events.
The parser is mostly implemented in C with XML parsing done in C++ using RapidXml library. Use of
native in-situ XML parsing allows to reach high
performance even on large log files.
Log4JParserCpp
The C++ XML log parser library. The library API is close to Log4JParserC but it takes advantage of
RAII idiom.
Log4JParserDashNet
.NET API is different from Log4JParserC in events enumeration to better match .NET collection
idioms.
Please note that while it is possible to manipulate event collections in .NET with LINQ to Objects
IEnumerable extension methods it is advisable to use the methods of IEnumerableOfEvents
interface to reduce switching between managed and unmanaged code.
DisposableCollection class is also provided for easier buildup of event filters. Please not that
complex filters (such as And, Or and Not filters) do not take ownership of its parts, i.e.
child filters must be explicitly disposed by the client code.
Building
Use build.bat script to build Log4JParserC, Log4JParserCpp Log4JParserDashNet and Log4JDash.Web
projects. Use serc\build.proj targets BuildParserC, BuildParserCpp, BuildParserNet and BuildDashWeb
to build a specific project.
All build outputs are placed in 'out' folder. Folder 'build' contains intermediate build outputs.
About
A log4j XML log files parser library and Web viewer.
Topics
log4net
Resources
Readme
MIT license
Activity
Stars
2 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} 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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src
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LICENSE.md
LICENSE.md
README.md
README.md
build.bat
build.bat
Repository files navigation
Log4JDash
A log4j XML log files parser library and Web viewer.
Log4JDash project consists of the following parts:
  • Log4JParserC - a native log4j XML log parser exposing C API. The library allows to enumerate and
filter events in the logs.
  • Log4JParserCpp and Log4JParserNet - C++ and .NET wrappers for the Log4JParserC library.
  • Log4JDash and Log4JParserDashNet - sample console log viewers for evalutaing C++ and .NET
wrappers and estimating parser performance.
  • Log4JDash.Web - ASP.NET MVC 5 web application for viewing log4j XML logs remotely.
Log4JParserC
The XML log parser core implementation. The library provides a C API for enumearting and filtering
events in log4j XML log files. The API also defines strings used to define log event levels.
The log level strings are based on log4net log levels. log4net defines more levels than log4j 2
and it uses inverted notion of order of levels. For example, in log4j 2 numeric value for DEBUG is
500 and numeric value for FATAL is 100; in log4net numeric value for DEBUG is 30000 and numeric
value for FATAL is 110000. This affects the notion of minimum and maximum levels when filtering the
events.
The parser is mostly implemented in C with XML parsing done in C++ using RapidXml library. Use of
native in-situ XML parsing allows to reach high
performance even on large log files.
Log4JParserCpp
The C++ XML log parser library. The library API is close to Log4JParserC but it takes advantage of
RAII idiom.
Log4JParserDashNet
.NET API is different from Log4JParserC in events enumeration to better match .NET collection
idioms.
Please note that while it is possible to manipulate event collections in .NET with LINQ to Objects
IEnumerable extension methods it is advisable to use the methods of IEnumerableOfEvents
interface to reduce switching between managed and unmanaged code.
DisposableCollection class is also provided for easier buildup of event filters. Please not that
complex filters (such as And, Or and Not filters) do not take ownership of its parts, i.e.
child filters must be explicitly disposed by the client code.
Building
Use build.bat script to build Log4JParserC, Log4JParserCpp Log4JParserDashNet and Log4JDash.Web
projects. Use serc\build.proj targets BuildParserC, BuildParserCpp, BuildParserNet and BuildDashWeb
to build a specific project.
All build outputs are placed in 'out' folder. Folder 'build' contains intermediate build outputs.
About
A log4j XML log files parser library and Web viewer.
Topics
log4net
Resources
Readme
MIT license
Activity
Stars
2 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

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

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285 Commits
Folders and files
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deps/include/rapidxml
deps/include/rapidxml
src
src
.gitignore
.gitignore
LICENSE.md
LICENSE.md
README.md
README.md
build.bat
build.bat
Repository files navigation
Log4JDash
A log4j XML log files parser library and Web viewer.
Log4JDash project consists of the following parts:
  • Log4JParserC - a native log4j XML log parser exposing C API. The library allows to enumerate and
filter events in the logs.
  • Log4JParserCpp and Log4JParserNet - C++ and .NET wrappers for the Log4JParserC library.
  • Log4JDash and Log4JParserDashNet - sample console log viewers for evalutaing C++ and .NET
wrappers and estimating parser performance.
  • Log4JDash.Web - ASP.NET MVC 5 web application for viewing log4j XML logs remotely.
Log4JParserC
The XML log parser core implementation. The library provides a C API for enumearting and filtering
events in log4j XML log files. The API also defines strings used to define log event levels.
The log level strings are based on log4net log levels. log4net defines more levels than log4j 2
and it uses inverted notion of order of levels. For example, in log4j 2 numeric value for DEBUG is
500 and numeric value for FATAL is 100; in log4net numeric value for DEBUG is 30000 and numeric
value for FATAL is 110000. This affects the notion of minimum and maximum levels when filtering the
events.
The parser is mostly implemented in C with XML parsing done in C++ using RapidXml library. Use of
native in-situ XML parsing allows to reach high
performance even on large log files.
Log4JParserCpp
The C++ XML log parser library. The library API is close to Log4JParserC but it takes advantage of
RAII idiom.
Log4JParserDashNet
.NET API is different from Log4JParserC in events enumeration to better match .NET collection
idioms.
Please note that while it is possible to manipulate event collections in .NET with LINQ to Objects
IEnumerable extension methods it is advisable to use the methods of IEnumerableOfEvents
interface to reduce switching between managed and unmanaged code.
DisposableCollection class is also provided for easier buildup of event filters. Please not that
complex filters (such as And, Or and Not filters) do not take ownership of its parts, i.e.
child filters must be explicitly disposed by the client code.
Building
Use build.bat script to build Log4JParserC, Log4JParserCpp Log4JParserDashNet and Log4JDash.Web
projects. Use serc\build.proj targets BuildParserC, BuildParserCpp, BuildParserNet and BuildDashWeb
to build a specific project.
All build outputs are placed in 'out' folder. Folder 'build' contains intermediate build outputs.
About
A log4j XML log files parser library and Web viewer.
Topics
log4net
Resources
Readme
MIT license
Activity
Stars
2 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages

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

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285 Commits
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LICENSE.md
LICENSE.md
README.md
README.md
build.bat
build.bat
Repository files navigation
Log4JDash
A log4j XML log files parser library and Web viewer.
Log4JDash project consists of the following parts:
  • Log4JParserC - a native log4j XML log parser exposing C API. The library allows to enumerate and
filter events in the logs.
  • Log4JParserCpp and Log4JParserNet - C++ and .NET wrappers for the Log4JParserC library.
  • Log4JDash and Log4JParserDashNet - sample console log viewers for evalutaing C++ and .NET
wrappers and estimating parser performance.
  • Log4JDash.Web - ASP.NET MVC 5 web application for viewing log4j XML logs remotely.
Log4JParserC
The XML log parser core implementation. The library provides a C API for enumearting and filtering
events in log4j XML log files. The API also defines strings used to define log event levels.
The log level strings are based on log4net log levels. log4net defines more levels than log4j 2
and it uses inverted notion of order of levels. For example, in log4j 2 numeric value for DEBUG is
500 and numeric value for FATAL is 100; in log4net numeric value for DEBUG is 30000 and numeric
value for FATAL is 110000. This affects the notion of minimum and maximum levels when filtering the
events.
The parser is mostly implemented in C with XML parsing done in C++ using RapidXml library. Use of
native in-situ XML parsing allows to reach high
performance even on large log files.
Log4JParserCpp
The C++ XML log parser library. The library API is close to Log4JParserC but it takes advantage of
RAII idiom.
Log4JParserDashNet
.NET API is different from Log4JParserC in events enumeration to better match .NET collection
idioms.
Please note that while it is possible to manipulate event collections in .NET with LINQ to Objects
IEnumerable extension methods it is advisable to use the methods of IEnumerableOfEvents
interface to reduce switching between managed and unmanaged code.
DisposableCollection class is also provided for easier buildup of event filters. Please not that
complex filters (such as And, Or and Not filters) do not take ownership of its parts, i.e.
child filters must be explicitly disposed by the client code.
Building
Use build.bat script to build Log4JParserC, Log4JParserCpp Log4JParserDashNet and Log4JDash.Web
projects. Use serc\build.proj targets BuildParserC, BuildParserCpp, BuildParserNet and BuildDashWeb
to build a specific project.
All build outputs are placed in 'out' folder. Folder 'build' contains intermediate build outputs.
About
A log4j XML log files parser library and Web viewer.
Topics
log4net
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Readme
MIT license
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1 watching
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1 fork
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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Log4JDash
A log4j XML log files parser library and Web viewer.
Log4JDash project consists of the following parts:
  • Log4JParserC - a native log4j XML log parser exposing C API. The library allows to enumerate and
filter events in the logs.
  • Log4JParserCpp and Log4JParserNet - C++ and .NET wrappers for the Log4JParserC library.
  • Log4JDash and Log4JParserDashNet - sample console log viewers for evalutaing C++ and .NET
wrappers and estimating parser performance.
  • Log4JDash.Web - ASP.NET MVC 5 web application for viewing log4j XML logs remotely.
Log4JParserC
The XML log parser core implementation. The library provides a C API for enumearting and filtering
events in log4j XML log files. The API also defines strings used to define log event levels.
The log level strings are based on log4net log levels. log4net defines more levels than log4j 2
and it uses inverted notion of order of levels. For example, in log4j 2 numeric value for DEBUG is
500 and numeric value for FATAL is 100; in log4net numeric value for DEBUG is 30000 and numeric
value for FATAL is 110000. This affects the notion of minimum and maximum levels when filtering the
events.
The parser is mostly implemented in C with XML parsing done in C++ using RapidXml library. Use of
native in-situ XML parsing allows to reach high
performance even on large log files.
Log4JParserCpp
The C++ XML log parser library. The library API is close to Log4JParserC but it takes advantage of
RAII idiom.
Log4JParserDashNet
.NET API is different from Log4JParserC in events enumeration to better match .NET collection
idioms.
Please note that while it is possible to manipulate event collections in .NET with LINQ to Objects
IEnumerable extension methods it is advisable to use the methods of IEnumerableOfEvents
interface to reduce switching between managed and unmanaged code.
DisposableCollection class is also provided for easier buildup of event filters. Please not that
complex filters (such as And, Or and Not filters) do not take ownership of its parts, i.e.
child filters must be explicitly disposed by the client code.
Building
Use build.bat script to build Log4JParserC, Log4JParserCpp Log4JParserDashNet and Log4JDash.Web
projects. Use serc\build.proj targets BuildParserC, BuildParserCpp, BuildParserNet and BuildDashWeb
to build a specific project.
All build outputs are placed in 'out' folder. Folder 'build' contains intermediate build outputs.
About
A log4j XML log files parser library and Web viewer.
Topics
log4net
Resources
Readme
MIT license
Activity
Stars
2 stars
Watchers
1 watching
Forks
1 fork
Report repository
Releases
Packages
Used by
Contributors
Languages