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Fix application cannot start when the dubbo interface with @RequestMa…
…pping (#2064) * Fix application cannot start when the dubbo interface with @RequestMapping
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<?xml version="1.0" encoding="UTF-8"?> | ||
<!-- | ||
~ Licensed to the Apache Software Foundation (ASF) under one or more | ||
~ contributor license agreements. See the NOTICE file distributed with | ||
~ this work for additional information regarding copyright ownership. | ||
~ The ASF licenses this file to You under the Apache License, Version 2.0 | ||
~ (the "License"); you may not use this file except in compliance with | ||
~ the License. You may obtain a copy of the License at | ||
~ | ||
~ http://www.apache.org/licenses/LICENSE-2.0 | ||
~ | ||
~ Unless required by applicable law or agreed to in writing, software | ||
~ distributed under the License is distributed on an "AS IS" BASIS, | ||
~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
~ See the License for the specific language governing permissions and | ||
~ limitations under the License. | ||
--> | ||
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<project xmlns="http://maven.apache.org/POM/4.0.0" | ||
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | ||
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> | ||
<parent> | ||
<artifactId>apm-sdk-plugin</artifactId> | ||
<groupId>org.apache.skywalking</groupId> | ||
<version>6.0.0-GA-SNAPSHOT</version> | ||
</parent> | ||
<modelVersion>4.0.0</modelVersion> | ||
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<artifactId>dubbo-conflict-patch</artifactId> | ||
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<name>apm-dubbo-conflict-path</name> | ||
<properties> | ||
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> | ||
<dubbo.version>2.5.10</dubbo.version> | ||
</properties> | ||
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<dependencies> | ||
<dependency> | ||
<groupId>com.alibaba</groupId> | ||
<artifactId>dubbo</artifactId> | ||
<version>${dubbo.version}</version> | ||
<scope>provided</scope> | ||
</dependency> | ||
</dependencies> | ||
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</project> |
275 changes: 275 additions & 0 deletions
275
...ch/src/main/java/org/apache/skywalking/apm/plugin/dubbo/patch/MakeWrapperInterceptor.java
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/* | ||
* Licensed to the Apache Software Foundation (ASF) under one or more | ||
* contributor license agreements. See the NOTICE file distributed with | ||
* this work for additional information regarding copyright ownership. | ||
* The ASF licenses this file to You under the Apache License, Version 2.0 | ||
* (the "License"); you may not use this file except in compliance with | ||
* the License. You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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package org.apache.skywalking.apm.plugin.dubbo.patch; | ||
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import com.alibaba.dubbo.common.bytecode.ClassGenerator; | ||
import com.alibaba.dubbo.common.bytecode.NoSuchPropertyException; | ||
import com.alibaba.dubbo.common.bytecode.Wrapper; | ||
import com.alibaba.dubbo.common.utils.ClassHelper; | ||
import com.alibaba.dubbo.common.utils.ReflectUtils; | ||
import java.lang.reflect.Field; | ||
import java.lang.reflect.InvocationTargetException; | ||
import java.lang.reflect.Method; | ||
import java.lang.reflect.Modifier; | ||
import java.util.ArrayList; | ||
import java.util.HashMap; | ||
import java.util.LinkedHashMap; | ||
import java.util.List; | ||
import java.util.Map; | ||
import java.util.concurrent.atomic.AtomicLong; | ||
import java.util.regex.Matcher; | ||
import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.EnhancedInstance; | ||
import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.MethodInterceptResult; | ||
import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.StaticMethodsAroundInterceptor; | ||
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/** | ||
* @author Zhang Xin | ||
*/ | ||
public class MakeWrapperInterceptor implements StaticMethodsAroundInterceptor { | ||
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private static final AtomicLong WRAPPER_CLASS_COUNTER = new AtomicLong(0); | ||
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@Override | ||
public void beforeMethod(Class clazz, Method method, Object[] allArguments, Class<?>[] parameterTypes, | ||
MethodInterceptResult result) { | ||
Class wrapperClass = (Class<?>)allArguments[0]; | ||
if (EnhancedInstance.class.isAssignableFrom(wrapperClass)) { | ||
result.defineReturnValue(makeWrapper(wrapperClass)); | ||
} | ||
} | ||
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@Override public Object afterMethod(Class clazz, Method method, Object[] allArguments, Class<?>[] parameterTypes, | ||
Object ret) { | ||
return ret; | ||
} | ||
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@Override | ||
public void handleMethodException(Class clazz, Method method, Object[] allArguments, Class<?>[] parameterTypes, | ||
Throwable t) { | ||
} | ||
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private static Wrapper makeWrapper(Class<?> c) { | ||
if (c.isPrimitive()) | ||
throw new IllegalArgumentException("Can not create wrapper for primitive type: " + c); | ||
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String name = c.getName(); | ||
ClassLoader cl = ClassHelper.getClassLoader(c); | ||
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StringBuilder c1 = new StringBuilder("public void setPropertyValue(Object o, String n, Object v){ "); | ||
StringBuilder c2 = new StringBuilder("public Object getPropertyValue(Object o, String n){ "); | ||
StringBuilder c3 = new StringBuilder("public Object invokeMethod(Object o, String n, Class[] p, Object[] v) throws " + InvocationTargetException.class.getName() + "{ "); | ||
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c1.append(name).append(" w; try{ w = ((").append(name).append(")$1); }catch(Throwable e){ throw new IllegalArgumentException(e); }"); | ||
c2.append(name).append(" w; try{ w = ((").append(name).append(")$1); }catch(Throwable e){ throw new IllegalArgumentException(e); }"); | ||
c3.append(name).append(" w; try{ w = ((").append(name).append(")$1); }catch(Throwable e){ throw new IllegalArgumentException(e); }"); | ||
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Map<String, Class<?>> pts = new HashMap<String, Class<?>>(); // <property name, property types> | ||
Map<String, Method> ms = new LinkedHashMap<String, Method>(); // <method desc, Method instance> | ||
List<String> mns = new ArrayList<String>(); // method names. | ||
List<String> dmns = new ArrayList<String>(); // declaring method names. | ||
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// get all public field. | ||
for (Field f : c.getFields()) { | ||
String fn = f.getName(); | ||
Class<?> ft = f.getType(); | ||
if (Modifier.isStatic(f.getModifiers()) || Modifier.isTransient(f.getModifiers())) | ||
continue; | ||
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c1.append(" if( $2.equals(\"").append(fn).append("\") ){ w.").append(fn).append("=").append(arg(ft, "$3")).append("; return; }"); | ||
c2.append(" if( $2.equals(\"").append(fn).append("\") ){ return ($w)w.").append(fn).append("; }"); | ||
pts.put(fn, ft); | ||
} | ||
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Method[] methods = c.getMethods(); | ||
// get all public method. | ||
boolean hasMethod = hasMethods(methods); | ||
if (hasMethod) { | ||
c3.append(" try{"); | ||
} | ||
for (Method m : methods) { | ||
// ignore Object's method | ||
// ignore EnhanceInstance's method | ||
if (m.getDeclaringClass() == Object.class || "getSkyWalkingDynamicField".equals(m.getName()) || "setSkyWalkingDynamicField".equals(m.getName())) { | ||
continue; | ||
} | ||
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String mn = m.getName(); | ||
c3.append(" if( \"").append(mn).append("\".equals( $2 ) "); | ||
int len = m.getParameterTypes().length; | ||
c3.append(" && ").append(" $3.length == ").append(len); | ||
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boolean override = false; | ||
for (Method m2 : methods) { | ||
if (m != m2 && m.getName().equals(m2.getName())) { | ||
override = true; | ||
break; | ||
} | ||
} | ||
if (override) { | ||
if (len > 0) { | ||
for (int l = 0; l < len; l++) { | ||
c3.append(" && ").append(" $3[").append(l).append("].getName().equals(\"") | ||
.append(m.getParameterTypes()[l].getName()).append("\")"); | ||
} | ||
} | ||
} | ||
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c3.append(" ) { "); | ||
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if (m.getReturnType() == Void.TYPE) | ||
c3.append(" w.").append(mn).append('(').append(args(m.getParameterTypes(), "$4")).append(");").append(" return null;"); | ||
else | ||
c3.append(" return ($w)w.").append(mn).append('(').append(args(m.getParameterTypes(), "$4")).append(");"); | ||
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c3.append(" }"); | ||
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mns.add(mn); | ||
if (m.getDeclaringClass() == c) | ||
dmns.add(mn); | ||
ms.put(ReflectUtils.getDesc(m), m); | ||
} | ||
if (hasMethod) { | ||
c3.append(" } catch(Throwable e) { "); | ||
c3.append(" throw new java.lang.reflect.InvocationTargetException(e); "); | ||
c3.append(" }"); | ||
} | ||
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c3.append(" throw new " + NoSuchMethodException.class.getName() + "(\"Not found method \\\"\"+$2+\"\\\" in class " + c.getName() + ".\"); }"); | ||
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// deal with get/set method. | ||
Matcher matcher; | ||
for (Map.Entry<String, Method> entry : ms.entrySet()) { | ||
String md = entry.getKey(); | ||
Method method = (Method)entry.getValue(); | ||
if ((matcher = ReflectUtils.GETTER_METHOD_DESC_PATTERN.matcher(md)).matches()) { | ||
String pn = propertyName(matcher.group(1)); | ||
c2.append(" if( $2.equals(\"").append(pn).append("\") ){ return ($w)w.").append(method.getName()).append("(); }"); | ||
pts.put(pn, method.getReturnType()); | ||
} else if ((matcher = ReflectUtils.IS_HAS_CAN_METHOD_DESC_PATTERN.matcher(md)).matches()) { | ||
String pn = propertyName(matcher.group(1)); | ||
c2.append(" if( $2.equals(\"").append(pn).append("\") ){ return ($w)w.").append(method.getName()).append("(); }"); | ||
pts.put(pn, method.getReturnType()); | ||
} else if ((matcher = ReflectUtils.SETTER_METHOD_DESC_PATTERN.matcher(md)).matches()) { | ||
Class<?> pt = method.getParameterTypes()[0]; | ||
String pn = propertyName(matcher.group(1)); | ||
c1.append(" if( $2.equals(\"").append(pn).append("\") ){ w.").append(method.getName()).append("(").append(arg(pt, "$3")).append("); return; }"); | ||
pts.put(pn, pt); | ||
} | ||
} | ||
c1.append(" throw new " + NoSuchPropertyException.class.getName() + "(\"Not found property \\\"\"+$2+\"\\\" filed or setter method in class " + c.getName() + ".\"); }"); | ||
c2.append(" throw new " + NoSuchPropertyException.class.getName() + "(\"Not found property \\\"\"+$2+\"\\\" filed or setter method in class " + c.getName() + ".\"); }"); | ||
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// make class | ||
long id = WRAPPER_CLASS_COUNTER.getAndIncrement(); | ||
ClassGenerator cc = ClassGenerator.newInstance(cl); | ||
cc.setClassName((Modifier.isPublic(c.getModifiers()) ? Wrapper.class.getName() + "_swEnhance" : c.getName() + "$sw$_swEnhance") + id); | ||
cc.setSuperClass(Wrapper.class); | ||
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cc.addDefaultConstructor(); | ||
cc.addField("public static String[] pns;"); // property name array. | ||
cc.addField("public static " + Map.class.getName() + " pts;"); // property type map. | ||
cc.addField("public static String[] mns;"); // all method name array. | ||
cc.addField("public static String[] dmns;"); // declared method name array. | ||
for (int i = 0, len = ms.size(); i < len; i++) | ||
cc.addField("public static Class[] mts" + i + ";"); | ||
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cc.addMethod("public String[] getPropertyNames(){ return pns; }"); | ||
cc.addMethod("public boolean hasProperty(String n){ return pts.containsKey($1); }"); | ||
cc.addMethod("public Class getPropertyType(String n){ return (Class)pts.get($1); }"); | ||
cc.addMethod("public String[] getMethodNames(){ return mns; }"); | ||
cc.addMethod("public String[] getDeclaredMethodNames(){ return dmns; }"); | ||
cc.addMethod(c1.toString()); | ||
cc.addMethod(c2.toString()); | ||
cc.addMethod(c3.toString()); | ||
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try { | ||
Class<?> wc = cc.toClass(); | ||
// setup static field. | ||
wc.getField("pts").set(null, pts); | ||
wc.getField("pns").set(null, pts.keySet().toArray(new String[0])); | ||
wc.getField("mns").set(null, mns.toArray(new String[0])); | ||
wc.getField("dmns").set(null, dmns.toArray(new String[0])); | ||
int ix = 0; | ||
for (Method m : ms.values()) | ||
wc.getField("mts" + ix++).set(null, m.getParameterTypes()); | ||
return (Wrapper)wc.newInstance(); | ||
} catch (RuntimeException e) { | ||
throw e; | ||
} catch (Throwable e) { | ||
throw new RuntimeException(e.getMessage(), e); | ||
} finally { | ||
cc.release(); | ||
ms.clear(); | ||
mns.clear(); | ||
dmns.clear(); | ||
} | ||
} | ||
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private static String args(Class<?>[] cs, String name) { | ||
int len = cs.length; | ||
if (len == 0) | ||
return ""; | ||
StringBuilder sb = new StringBuilder(); | ||
for (int i = 0; i < len; i++) { | ||
if (i > 0) | ||
sb.append(','); | ||
sb.append(arg(cs[i], name + "[" + i + "]")); | ||
} | ||
return sb.toString(); | ||
} | ||
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private static String propertyName(String pn) { | ||
return pn.length() == 1 || Character.isLowerCase(pn.charAt(1)) ? Character.toLowerCase(pn.charAt(0)) + pn.substring(1) : pn; | ||
} | ||
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private static boolean hasMethods(Method[] methods) { | ||
if (methods == null || methods.length == 0) { | ||
return false; | ||
} | ||
for (Method m : methods) { | ||
if (m.getDeclaringClass() != Object.class) { | ||
return true; | ||
} | ||
} | ||
return false; | ||
} | ||
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private static String arg(Class<?> cl, String name) { | ||
if (cl.isPrimitive()) { | ||
if (cl == Boolean.TYPE) | ||
return "((Boolean)" + name + ").booleanValue()"; | ||
if (cl == Byte.TYPE) | ||
return "((Byte)" + name + ").byteValue()"; | ||
if (cl == Character.TYPE) | ||
return "((Character)" + name + ").charValue()"; | ||
if (cl == Double.TYPE) | ||
return "((Number)" + name + ").doubleValue()"; | ||
if (cl == Float.TYPE) | ||
return "((Number)" + name + ").floatValue()"; | ||
if (cl == Integer.TYPE) | ||
return "((Number)" + name + ").intValue()"; | ||
if (cl == Long.TYPE) | ||
return "((Number)" + name + ").longValue()"; | ||
if (cl == Short.TYPE) | ||
return "((Number)" + name + ").shortValue()"; | ||
throw new RuntimeException("Unknown primitive type: " + cl.getName()); | ||
} | ||
return "(" + ReflectUtils.getName(cl) + ")" + name; | ||
} | ||
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} |
61 changes: 61 additions & 0 deletions
61
...ch/src/main/java/org/apache/skywalking/apm/plugin/dubbo/patch/WrapperInstrumentation.java
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/* | ||
* Licensed to the Apache Software Foundation (ASF) under one or more | ||
* contributor license agreements. See the NOTICE file distributed with | ||
* this work for additional information regarding copyright ownership. | ||
* The ASF licenses this file to You under the Apache License, Version 2.0 | ||
* (the "License"); you may not use this file except in compliance with | ||
* the License. You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, | ||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
* See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
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package org.apache.skywalking.apm.plugin.dubbo.patch; | ||
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import net.bytebuddy.description.method.MethodDescription; | ||
import net.bytebuddy.matcher.ElementMatcher; | ||
import org.apache.skywalking.apm.agent.core.plugin.interceptor.StaticMethodsInterceptPoint; | ||
import org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.ClassStaticMethodsEnhancePluginDefine; | ||
import org.apache.skywalking.apm.agent.core.plugin.match.ClassMatch; | ||
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import static net.bytebuddy.matcher.ElementMatchers.named; | ||
import static org.apache.skywalking.apm.agent.core.plugin.match.NameMatch.byName; | ||
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/** | ||
* The dubbo conflict plugin resolver the problem about the wrapper class generated by Dubbo core cannot be compiled successfully. As we known, | ||
* The wrapper class traverses all the methods. In usual, it works unless this | ||
* class has been enhanced by Skywalking. The javasist cannot found the `EnhanceInstance` method when generate. | ||
* | ||
* The plugin excludes {@link org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.EnhancedInstance} | ||
* methods to ensure the correct compilation of the code. | ||
* | ||
* @author Zhang Xin | ||
*/ | ||
public class WrapperInstrumentation extends ClassStaticMethodsEnhancePluginDefine { | ||
@Override protected StaticMethodsInterceptPoint[] getStaticMethodsInterceptPoints() { | ||
return new StaticMethodsInterceptPoint[] { | ||
new StaticMethodsInterceptPoint() { | ||
@Override public ElementMatcher<MethodDescription> getMethodsMatcher() { | ||
return named("makeWrapper"); | ||
} | ||
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@Override public String getMethodsInterceptor() { | ||
return "org.apache.skywalking.apm.plugin.dubbo.patch.MakeWrapperInterceptor"; | ||
} | ||
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@Override public boolean isOverrideArgs() { | ||
return false; | ||
} | ||
} | ||
}; | ||
} | ||
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@Override protected ClassMatch enhanceClass() { | ||
return byName("com.alibaba.dubbo.common.bytecode.Wrapper"); | ||
} | ||
} |
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