Douglas Campos edited this page Jan 24, 2011 · 1 revision

This page shows an example of using the Java JMX packages directly from Ruby, but there are two gems which exist to make using JMX must less painful. Consider using these packages before you break down and code this stuff by hand:

This code snippet shows how to access ActiveMQ's Dead Letter Queue (DLQ):

require'java'importjava.rmi.MarshalledObjectimportjava.rmi.registry.LocateRegistryimportjavax.management.ObjectName# Connect to the JNDI lookup serverregistry=LocateRegistry.get_registry("localhost",1099)# List available RMI objectsnames=registry.listputs'Available RMI objects:'pnames.to_aputs# Fetch a remote proxy to the JMX RMI objectremote=registry.lookup("jmxrmi")puts"Got remote JMX object: #{remote.inspect}"con=remote.new_clientnilputs"Got connection: #{con.inspect}"# List JMX domainsdomains=con.get_domainsnilputs"Found domains:"pdomains.to_a# List available MBeansmbeans=con.query_namesnil,nil,nilputs'Available MBeans:'mbean_names=mbeans.to_a.map{|n| n.to_s}.sortputsmbean_names.join("\n")putsputs# Find the dead letter queue in ActiveMQ queue=mbean_names.find{|n| n =~ /org.apache.activemq.*Type=Queue.*Destination=ActiveMQ.DLQ/}ifqueueputs'Found ActiveMQ DLQ:'pqueueputs"Purging DLQ"name=ObjectName.new(queue)res=con.invokename,'purge',MarshalledObject.new(nil),nil,nilputs"Result from purge: #{res.inspect}"end

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, '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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Douglas Campos edited this page Jan 24, 2011 · 1 revision

This page shows an example of using the Java JMX packages directly from Ruby, but there are two gems which exist to make using JMX must less painful. Consider using these packages before you break down and code this stuff by hand:

This code snippet shows how to access ActiveMQ's Dead Letter Queue (DLQ):

require'java'importjava.rmi.MarshalledObjectimportjava.rmi.registry.LocateRegistryimportjavax.management.ObjectName# Connect to the JNDI lookup serverregistry=LocateRegistry.get_registry("localhost",1099)# List available RMI objectsnames=registry.listputs'Available RMI objects:'pnames.to_aputs# Fetch a remote proxy to the JMX RMI objectremote=registry.lookup("jmxrmi")puts"Got remote JMX object: #{remote.inspect}"con=remote.new_clientnilputs"Got connection: #{con.inspect}"# List JMX domainsdomains=con.get_domainsnilputs"Found domains:"pdomains.to_a# List available MBeansmbeans=con.query_namesnil,nil,nilputs'Available MBeans:'mbean_names=mbeans.to_a.map{|n| n.to_s}.sortputsmbean_names.join("\n")putsputs# Find the dead letter queue in ActiveMQ queue=mbean_names.find{|n| n =~ /org.apache.activemq.*Type=Queue.*Destination=ActiveMQ.DLQ/}ifqueueputs'Found ActiveMQ DLQ:'pqueueputs"Purging DLQ"name=ObjectName.new(queue)res=con.invokename,'purge',MarshalledObject.new(nil),nil,nilputs"Result from purge: #{res.inspect}"end

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, '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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Douglas Campos edited this page Jan 24, 2011 · 1 revision

This page shows an example of using the Java JMX packages directly from Ruby, but there are two gems which exist to make using JMX must less painful. Consider using these packages before you break down and code this stuff by hand:

This code snippet shows how to access ActiveMQ's Dead Letter Queue (DLQ):

require'java'importjava.rmi.MarshalledObjectimportjava.rmi.registry.LocateRegistryimportjavax.management.ObjectName# Connect to the JNDI lookup serverregistry=LocateRegistry.get_registry("localhost",1099)# List available RMI objectsnames=registry.listputs'Available RMI objects:'pnames.to_aputs# Fetch a remote proxy to the JMX RMI objectremote=registry.lookup("jmxrmi")puts"Got remote JMX object: #{remote.inspect}"con=remote.new_clientnilputs"Got connection: #{con.inspect}"# List JMX domainsdomains=con.get_domainsnilputs"Found domains:"pdomains.to_a# List available MBeansmbeans=con.query_namesnil,nil,nilputs'Available MBeans:'mbean_names=mbeans.to_a.map{|n| n.to_s}.sortputsmbean_names.join("\n")putsputs# Find the dead letter queue in ActiveMQ queue=mbean_names.find{|n| n =~ /org.apache.activemq.*Type=Queue.*Destination=ActiveMQ.DLQ/}ifqueueputs'Found ActiveMQ DLQ:'pqueueputs"Purging DLQ"name=ObjectName.new(queue)res=con.invokename,'purge',MarshalledObject.new(nil),nil,nilputs"Result from purge: #{res.inspect}"end

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, '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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Douglas Campos edited this page Jan 24, 2011 · 1 revision

This page shows an example of using the Java JMX packages directly from Ruby, but there are two gems which exist to make using JMX must less painful. Consider using these packages before you break down and code this stuff by hand:

This code snippet shows how to access ActiveMQ's Dead Letter Queue (DLQ):

require'java'importjava.rmi.MarshalledObjectimportjava.rmi.registry.LocateRegistryimportjavax.management.ObjectName# Connect to the JNDI lookup serverregistry=LocateRegistry.get_registry("localhost",1099)# List available RMI objectsnames=registry.listputs'Available RMI objects:'pnames.to_aputs# Fetch a remote proxy to the JMX RMI objectremote=registry.lookup("jmxrmi")puts"Got remote JMX object: #{remote.inspect}"con=remote.new_clientnilputs"Got connection: #{con.inspect}"# List JMX domainsdomains=con.get_domainsnilputs"Found domains:"pdomains.to_a# List available MBeansmbeans=con.query_namesnil,nil,nilputs'Available MBeans:'mbean_names=mbeans.to_a.map{|n| n.to_s}.sortputsmbean_names.join("\n")putsputs# Find the dead letter queue in ActiveMQ queue=mbean_names.find{|n| n =~ /org.apache.activemq.*Type=Queue.*Destination=ActiveMQ.DLQ/}ifqueueputs'Found ActiveMQ DLQ:'pqueueputs"Purging DLQ"name=ObjectName.new(queue)res=con.invokename,'purge',MarshalledObject.new(nil),nil,nilputs"Result from purge: #{res.inspect}"end

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, '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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Douglas Campos edited this page Jan 24, 2011 · 1 revision

This page shows an example of using the Java JMX packages directly from Ruby, but there are two gems which exist to make using JMX must less painful. Consider using these packages before you break down and code this stuff by hand:

This code snippet shows how to access ActiveMQ's Dead Letter Queue (DLQ):

require'java'importjava.rmi.MarshalledObjectimportjava.rmi.registry.LocateRegistryimportjavax.management.ObjectName# Connect to the JNDI lookup serverregistry=LocateRegistry.get_registry("localhost",1099)# List available RMI objectsnames=registry.listputs'Available RMI objects:'pnames.to_aputs# Fetch a remote proxy to the JMX RMI objectremote=registry.lookup("jmxrmi")puts"Got remote JMX object: #{remote.inspect}"con=remote.new_clientnilputs"Got connection: #{con.inspect}"# List JMX domainsdomains=con.get_domainsnilputs"Found domains:"pdomains.to_a# List available MBeansmbeans=con.query_namesnil,nil,nilputs'Available MBeans:'mbean_names=mbeans.to_a.map{|n| n.to_s}.sortputsmbean_names.join("\n")putsputs# Find the dead letter queue in ActiveMQ queue=mbean_names.find{|n| n =~ /org.apache.activemq.*Type=Queue.*Destination=ActiveMQ.DLQ/}ifqueueputs'Found ActiveMQ DLQ:'pqueueputs"Purging DLQ"name=ObjectName.new(queue)res=con.invokename,'purge',MarshalledObject.new(nil),nil,nilputs"Result from purge: #{res.inspect}"end

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, '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
Douglas Campos edited this page Jan 24, 2011 · 1 revision

This page shows an example of using the Java JMX packages directly from Ruby, but there are two gems which exist to make using JMX must less painful. Consider using these packages before you break down and code this stuff by hand:

This code snippet shows how to access ActiveMQ's Dead Letter Queue (DLQ):

require'java'importjava.rmi.MarshalledObjectimportjava.rmi.registry.LocateRegistryimportjavax.management.ObjectName# Connect to the JNDI lookup serverregistry=LocateRegistry.get_registry("localhost",1099)# List available RMI objectsnames=registry.listputs'Available RMI objects:'pnames.to_aputs# Fetch a remote proxy to the JMX RMI objectremote=registry.lookup("jmxrmi")puts"Got remote JMX object: #{remote.inspect}"con=remote.new_clientnilputs"Got connection: #{con.inspect}"# List JMX domainsdomains=con.get_domainsnilputs"Found domains:"pdomains.to_a# List available MBeansmbeans=con.query_namesnil,nil,nilputs'Available MBeans:'mbean_names=mbeans.to_a.map{|n| n.to_s}.sortputsmbean_names.join("\n")putsputs# Find the dead letter queue in ActiveMQ queue=mbean_names.find{|n| n =~ /org.apache.activemq.*Type=Queue.*Destination=ActiveMQ.DLQ/}ifqueueputs'Found ActiveMQ DLQ:'pqueueputs"Purging DLQ"name=ObjectName.new(queue)res=con.invokename,'purge',MarshalledObject.new(nil),nil,nilputs"Result from purge: #{res.inspect}"end

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, '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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Douglas Campos edited this page Jan 24, 2011 · 1 revision

This page shows an example of using the Java JMX packages directly from Ruby, but there are two gems which exist to make using JMX must less painful. Consider using these packages before you break down and code this stuff by hand:

This code snippet shows how to access ActiveMQ's Dead Letter Queue (DLQ):

require'java'importjava.rmi.MarshalledObjectimportjava.rmi.registry.LocateRegistryimportjavax.management.ObjectName# Connect to the JNDI lookup serverregistry=LocateRegistry.get_registry("localhost",1099)# List available RMI objectsnames=registry.listputs'Available RMI objects:'pnames.to_aputs# Fetch a remote proxy to the JMX RMI objectremote=registry.lookup("jmxrmi")puts"Got remote JMX object: #{remote.inspect}"con=remote.new_clientnilputs"Got connection: #{con.inspect}"# List JMX domainsdomains=con.get_domainsnilputs"Found domains:"pdomains.to_a# List available MBeansmbeans=con.query_namesnil,nil,nilputs'Available MBeans:'mbean_names=mbeans.to_a.map{|n| n.to_s}.sortputsmbean_names.join("\n")putsputs# Find the dead letter queue in ActiveMQ queue=mbean_names.find{|n| n =~ /org.apache.activemq.*Type=Queue.*Destination=ActiveMQ.DLQ/}ifqueueputs'Found ActiveMQ DLQ:'pqueueputs"Purging DLQ"name=ObjectName.new(queue)res=con.invokename,'purge',MarshalledObject.new(nil),nil,nilputs"Result from purge: #{res.inspect}"end

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, '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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Douglas Campos edited this page Jan 24, 2011 · 1 revision

This page shows an example of using the Java JMX packages directly from Ruby, but there are two gems which exist to make using JMX must less painful. Consider using these packages before you break down and code this stuff by hand:

This code snippet shows how to access ActiveMQ's Dead Letter Queue (DLQ):

require'java'importjava.rmi.MarshalledObjectimportjava.rmi.registry.LocateRegistryimportjavax.management.ObjectName# Connect to the JNDI lookup serverregistry=LocateRegistry.get_registry("localhost",1099)# List available RMI objectsnames=registry.listputs'Available RMI objects:'pnames.to_aputs# Fetch a remote proxy to the JMX RMI objectremote=registry.lookup("jmxrmi")puts"Got remote JMX object: #{remote.inspect}"con=remote.new_clientnilputs"Got connection: #{con.inspect}"# List JMX domainsdomains=con.get_domainsnilputs"Found domains:"pdomains.to_a# List available MBeansmbeans=con.query_namesnil,nil,nilputs'Available MBeans:'mbean_names=mbeans.to_a.map{|n| n.to_s}.sortputsmbean_names.join("\n")putsputs# Find the dead letter queue in ActiveMQ queue=mbean_names.find{|n| n =~ /org.apache.activemq.*Type=Queue.*Destination=ActiveMQ.DLQ/}ifqueueputs'Found ActiveMQ DLQ:'pqueueputs"Purging DLQ"name=ObjectName.new(queue)res=con.invokename,'purge',MarshalledObject.new(nil),nil,nilputs"Result from purge: #{res.inspect}"end

Clone this wiki locally