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106 changes: 106 additions & 0 deletions
106
core/src/main/java/com/taobao/arthas/core/command/monitor200/offline/OffLineCommand.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| package com.taobao.arthas.core.command.monitor200.offline; | ||
|
|
||
| import com.alibaba.arthas.deps.org.slf4j.Logger; | ||
| import com.alibaba.arthas.deps.org.slf4j.LoggerFactory; | ||
| import com.alibaba.fastjson.JSON; | ||
| import com.taobao.arthas.core.GlobalOptions; | ||
| import com.taobao.arthas.core.advisor.AdviceListener; | ||
| import com.taobao.arthas.core.command.Constants; | ||
| import com.taobao.arthas.core.command.monitor200.EnhancerCommand; | ||
| import com.taobao.arthas.core.shell.cli.Completion; | ||
| import com.taobao.arthas.core.shell.cli.CompletionUtils; | ||
| import com.taobao.arthas.core.shell.command.CommandProcess; | ||
| import com.taobao.arthas.core.util.SearchUtils; | ||
| import com.taobao.arthas.core.util.matcher.Matcher; | ||
| import com.taobao.middleware.cli.annotations.Description; | ||
| import com.taobao.middleware.cli.annotations.Name; | ||
| import com.taobao.middleware.cli.annotations.Option; | ||
| import com.taobao.middleware.cli.annotations.Summary; | ||
|
|
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| import java.util.Arrays; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
|
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| @Name("offline") | ||
| @Summary("offline http connection for cxf") | ||
| @Description(Constants.EXPRESS_DESCRIPTION + "\nExamples:\n" + | ||
| " offline -host 127.0.0.1 -off true -close false\n" + | ||
| Constants.WIKI + Constants.WIKI_HOME + "offline") | ||
| public class OffLineCommand extends EnhancerCommand { | ||
| private static final Logger logger = LoggerFactory.getLogger(OffLineCommand.class); | ||
| private static String className; | ||
| private static String methodName; | ||
| static { | ||
| className = "org.apache.cxf.transport.servlet.AbstractHTTPServlet"; | ||
| methodName = "service"; | ||
| } | ||
|
|
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| protected ConcurrentHashMap<String,String> hosts = new ConcurrentHashMap<>(); | ||
| @Option(shortName = "host", longName = "host") | ||
| @Description("host ip address") | ||
| public void setHost(String host) { | ||
| this.hosts.put(host,host); | ||
| logger.info("{}", JSON.toJSONString(hosts)); | ||
| } | ||
|
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| @Option(shortName = "off", longName = "off") | ||
| @Description("offline or online") | ||
| public void setOff(boolean off) { | ||
| if(!off){ | ||
| hosts.clear(); | ||
| } | ||
| } | ||
|
|
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| @Option(shortName = "className", longName = "className") | ||
| @Description("className") | ||
| public void setClassName(String cls) { | ||
| className = cls; | ||
| } | ||
|
|
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| @Option(shortName = "method", longName = "method") | ||
| @Description("method") | ||
| public void setMethod(String method) { | ||
| methodName = method; | ||
| } | ||
|
|
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| private boolean close; | ||
| @Option(shortName = "close", longName = "close") | ||
| @Description("close socket") | ||
| public void setClose(boolean close) { | ||
| this.close = close; | ||
| } | ||
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| public boolean isClose() { | ||
| return close; | ||
| } | ||
|
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| @Override | ||
| protected Matcher getClassNameMatcher() { | ||
| if (classNameMatcher == null) { | ||
| classNameMatcher = SearchUtils.classNameMatcher(className, false); | ||
| } | ||
| return classNameMatcher; | ||
| } | ||
|
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| @Override | ||
| protected Matcher getClassNameExcludeMatcher() { | ||
| return classNameExcludeMatcher; | ||
| } | ||
|
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| @Override | ||
| protected Matcher getMethodNameMatcher() { | ||
| if (methodNameMatcher == null) { | ||
| methodNameMatcher = SearchUtils.classNameMatcher(methodName, false); | ||
| } | ||
| return methodNameMatcher; | ||
| } | ||
|
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| @Override | ||
| protected AdviceListener getAdviceListener(CommandProcess process) { | ||
| return new OfflineAdviceListener(this, process, GlobalOptions.verbose || this.verbose); | ||
| } | ||
|
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| @Override | ||
| protected void completeArgument3(Completion completion) { | ||
| CompletionUtils.complete(completion, Arrays.asList(EXPRESS_EXAMPLES)); | ||
| } | ||
| } |
113 changes: 113 additions & 0 deletions
113
...rc/main/java/com/taobao/arthas/core/command/monitor200/offline/OfflineAdviceListener.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| package com.taobao.arthas.core.command.monitor200.offline; | ||
|
|
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| import com.alibaba.arthas.deps.org.slf4j.Logger; | ||
| import com.alibaba.arthas.deps.org.slf4j.LoggerFactory; | ||
| import com.taobao.arthas.core.advisor.AdviceListenerAdapter; | ||
| import com.taobao.arthas.core.advisor.ArthasMethod; | ||
| import com.taobao.arthas.core.shell.command.CommandProcess; | ||
|
|
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| import java.lang.reflect.Method; | ||
| import java.util.Collection; | ||
| import java.util.Iterator; | ||
|
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| class OfflineAdviceListener extends AdviceListenerAdapter { | ||
| private static final Logger logger = LoggerFactory.getLogger(OfflineAdviceListener.class); | ||
| private OffLineCommand command; | ||
| private CommandProcess process; | ||
|
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| public OfflineAdviceListener(OffLineCommand command, CommandProcess process, boolean verbose) { | ||
| this.command = command; | ||
| this.process = process; | ||
| super.setVerbose(verbose); | ||
| } | ||
|
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| @Override | ||
| public void before(ClassLoader loader, Class<?> clazz, ArthasMethod method, Object target, Object[] args) | ||
| throws Throwable { | ||
| //logger.info("{} {} {}",clazz.getName(),method.getName(),target); | ||
| try { | ||
| if(args.length < 2){ | ||
| return; | ||
| } | ||
| Method method1 = method(args[0].getClass(),"getRemoteHost"); | ||
| method1.setAccessible(true); | ||
| String host = (String) method1.invoke(args[0]); | ||
| if (command.hosts.containsKey(host)) { | ||
| Object response = args[1]; | ||
| Class cls = response.getClass(); | ||
| Method setHeader = method(cls,"setHeader",String.class,String.class); | ||
| setHeader.invoke(response,"Connection","close"); | ||
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| logger.info("before remote host is {} ,setHeader Connection close,isClose {}",host,command.isClose()); | ||
| } | ||
| }catch (Throwable t){ | ||
| logger.error("{} {}",args[0],args[1],t); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public void afterReturning(ClassLoader loader, Class<?> clazz, ArthasMethod method, Object target, Object[] args, | ||
| Object returnObject) throws Throwable { | ||
| //logger.info("{} {} {} {}",clazz.getName(),method.getName(),target,args.length); | ||
| try { | ||
| if(args.length < 2){ | ||
| return; | ||
| } | ||
| Method method1 = method(args[0].getClass(),"getRemoteHost"); | ||
| method1.setAccessible(true); | ||
| String host = (String) method1.invoke(args[0]); | ||
| if (command.hosts.containsKey(host)) { | ||
| Object response = args[1]; | ||
| Class cls = response.getClass(); | ||
|
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| Method getHeader = method(cls,"getHeader",String.class); | ||
|
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| Method getHeaderNames = method(cls,"getHeaderNames"); | ||
| Collection<String> collection = (Collection<String>)getHeaderNames.invoke(response); | ||
|
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| StringBuilder stringBuilder = new StringBuilder(); | ||
| if(collection != null){ | ||
| Iterator<String> iterator = collection.iterator(); | ||
| while (iterator.hasNext()){ | ||
| String header = iterator.next(); | ||
| String value = (String) getHeader.invoke(response,header); | ||
| if(stringBuilder.length() == 0){ | ||
| stringBuilder.append(header).append(":").append(value); | ||
| }else { | ||
| stringBuilder.append(",").append(header).append(":").append(value); | ||
| } | ||
| } | ||
| } | ||
|
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| if(command.isClose()){ | ||
| Method getWriter = method(cls,"getWriter"); | ||
| Object printWriter = getWriter.invoke(response); | ||
|
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| Method close = method(printWriter.getClass(),"close"); | ||
| close.invoke(printWriter); | ||
| } | ||
| logger.info("after remote host is {} ,setHeader Connection close,isClose {},headers {}", | ||
| host,command.isClose(),stringBuilder.toString()); | ||
| } | ||
| }catch (Throwable t){ | ||
| logger.error("{} {}",args[0],args[1],t); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public void afterThrowing(ClassLoader loader, Class<?> clazz, ArthasMethod method, Object target, Object[] args, | ||
| Throwable throwable) { | ||
| logger.info("{} {} {} {}",clazz.getName(),method.getName(),target,args.length); | ||
| } | ||
|
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| private static Method method(Class<?> clazz, String methodName,Class<?>... parameterTypes){ | ||
| if(clazz == null){ | ||
| return null; | ||
| } | ||
| try{ | ||
| return clazz.getDeclaredMethod(methodName,parameterTypes); | ||
| } catch (NoSuchMethodException e) { | ||
| return method(clazz.getSuperclass(),methodName); | ||
| } | ||
| } | ||
| } |
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