Merge pull request #61 from ddyblackhat/master

jvm部分数据结构作业

group04/1796244932/learn01/pom.xml

@@ -44,6 +44,38 @@
       <version>4.0.0.Alpha8</version>
     </dependency>
 
+
+    <!-- https://mvnrepository.com/artifact/javassist/javassist -->
+    <dependency>
+      <groupId>javassist</groupId>
+      <artifactId>javassist</artifactId>
+      <version>3.12.1.GA</version>
+    </dependency>
+
+
+    <!-- https://mvnrepository.com/artifact/cglib/cglib -->
+    <dependency>
+      <groupId>cglib</groupId>
+      <artifactId>cglib</artifactId>
+      <version>2.2.2</version>
+    </dependency>
+
+    <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
+    <dependency>
+      <groupId>org.apache.commons</groupId>
+      <artifactId>commons-lang3</artifactId>
+      <version>3.5</version>
+    </dependency>
+
+    <!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
+    <dependency>
+      <groupId>commons-io</groupId>
+      <artifactId>commons-io</artifactId>
+      <version>2.4</version>
+    </dependency>
+
+
+
   </dependencies>
 
 

group04/1796244932/learn01/src/main/java/com/dudy/learn01/base/aop/DynamicProxy/Business.java

@@ -0,0 +1,16 @@
+package  com.dudy.learn01.base.aop.DynamicProxy;
+
+/**
+ * Created by dudy on 2017/3/22.
+ */
+public class Business implements  IBusiness,IBusiness2{
+    @Override
+    public void dosomething() {
+        System.out.println("dosomething.....");
+    }
+
+    @Override
+    public void dosomething2() {
+        System.out.println("dosomething2.....");
+    }
+}

group04/1796244932/learn01/src/main/java/com/dudy/learn01/base/aop/DynamicProxy/CGlibDemo.java

@@ -0,0 +1,28 @@
+package  com.dudy.learn01.base.aop.DynamicProxy;
+
+import net.sf.cglib.proxy.Enhancer;
+
+/**
+ * Created by dudy on 2017/3/22.
+ */
+public class CGlibDemo {
+
+    public static void main(String[] args) {
+        byteCodeGe();
+    }
+
+    public static  void byteCodeGe(){
+        //创建一个织入器
+        Enhancer enhancer = new Enhancer();
+        // 设置父类
+        enhancer.setSuperclass(Business.class);
+        // 设置需要织入的逻辑
+        enhancer.setCallback(new LogIntercept());
+        //使用织入器创建子类
+        IBusiness2  newBusiness = (IBusiness2) enhancer.create();
+        newBusiness.dosomething2();
+
+    }
+
+
+}

group04/1796244932/learn01/src/main/java/com/dudy/learn01/base/aop/DynamicProxy/DynamicProxyDemo.java

@@ -0,0 +1,25 @@
+package  com.dudy.learn01.base.aop.DynamicProxy;
+import java.lang.reflect.Proxy;
+
+/**
+ * Created by dudy on 2017/3/22.
+ */
+public class DynamicProxyDemo {
+
+
+    public static void main(String[] args) {
+
+        // 需要代理的接口，被代理类实现的多个接口都必须放在这里
+        Class[] proxyInterface  = new Class[]{IBusiness.class,IBusiness2.class};
+        // 构建AOP的Advice，这里需要传入业务类的实例
+        LogInvocationHandler handler = new LogInvocationHandler(new Business());
+        //生成代理类的字节码加载器
+        ClassLoader loader  = DynamicProxyDemo.class.getClassLoader();
+        //织入器，织入代码并生成代理类
+        IBusiness2 proxyBusiness = (IBusiness2) Proxy.newProxyInstance(loader, proxyInterface, handler);
+
+        proxyBusiness.dosomething2();
+    }
+
+
+}

group04/1796244932/learn01/src/main/java/com/dudy/learn01/base/aop/DynamicProxy/IBusiness.java

@@ -0,0 +1,8 @@
+package  com.dudy.learn01.base.aop.DynamicProxy;
+
+/**
+ * Created by dudy on 2017/3/22.
+ */
+public interface IBusiness {
+    void  dosomething();
+}

group04/1796244932/learn01/src/main/java/com/dudy/learn01/base/aop/DynamicProxy/IBusiness2.java

@@ -0,0 +1,9 @@
+package  com.dudy.learn01.base.aop.DynamicProxy;
+
+/**
+ * Created by dudy on 2017/3/22.
+ */
+public interface IBusiness2 {
+
+    public  void  dosomething2();
+}

group04/1796244932/learn01/src/main/java/com/dudy/learn01/base/aop/DynamicProxy/LogIntercept.java

@@ -0,0 +1,25 @@
+package  com.dudy.learn01.base.aop.DynamicProxy;
+
+import net.sf.cglib.proxy.Callback;
+import net.sf.cglib.proxy.MethodInterceptor;
+import net.sf.cglib.proxy.MethodProxy;
+
+import java.lang.reflect.Method;
+
+/**
+ * Created by dudy on 2017/3/22.
+ */
+public class LogIntercept implements MethodInterceptor {
+    @Override
+    public Object intercept(Object o, Method method, Object[] objects, MethodProxy proxy) throws Throwable {
+        //执行原有的逻辑，注意这里是invokeSuper
+        Object rev = proxy.invokeSuper(o, objects);
+        //执行织入的日志
+        if (method.getName().equals("dosomething2")){
+            System.out.println("CGlib dosometing2.....");
+        }
+
+
+        return rev;
+    }
+}

group04/1796244932/learn01/src/main/java/com/dudy/learn01/base/aop/DynamicProxy/LogInvocationHandler.java

@@ -0,0 +1,30 @@
+package  com.dudy.learn01.base.aop.DynamicProxy;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+
+/**
+ * Created by dudy on 2017/3/22.
+ * 打印日志的切面
+ */
+public class LogInvocationHandler implements InvocationHandler{
+
+    private  Object  targer; //目标对象
+
+    public LogInvocationHandler(Object targer) {
+        this.targer = targer;
+    }
+
+    @Override
+    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
+
+        // 执行原有逻辑
+        Object rev = method.invoke(targer, args);
+        // 执行织入的日志，你可以控制哪些哪些方法执行切入逻辑
+        if (method.getName().equals("dosomething2")){
+            System.out.println("记录日志");
+        }
+
+        return rev;
+    }
+}

group04/1796244932/learn01/src/main/java/com/dudy/learn01/base/aop/node.md

@@ -0,0 +1,7 @@
+## AOP 实现机制
+
+### AOP各种实现
+aop就是面向切面编程， 可以从几个层面来实现AOP
+编译期
+字节码加载前
+字节码加载后

group04/1796244932/learn01/src/main/java/com/dudy/learn01/juc/ThreadLocalTest.java → group04/1796244932/learn01/src/main/java/com/dudy/learn01/base/juc/ThreadLocalTest.java

@@ -1,4 +1,4 @@
-package com.dudy.learn01.juc;
+package com.dudy.learn01.base.juc;
 
 /**
  * Created by dudy on 2017/3/9.

group04/1796244932/learn01/src/main/java/com/dudy/learn01/download/DownloadThread.java → group04/1796244932/learn01/src/main/java/com/dudy/learn01/coderising/download/DownloadThread.java

@@ -1,6 +1,7 @@
-package com.dudy.learn01.download;
+package com.dudy.learn01.coderising.download;
 
-import com.dudy.learn01.download.api.Connection;
+
+import com.dudy.learn01.coderising.download.api.Connection;
 
 import java.io.*;
 import java.util.concurrent.BrokenBarrierException;

group04/1796244932/learn01/src/main/java/com/dudy/learn01/download/FileDownloader.java → group04/1796244932/learn01/src/main/java/com/dudy/learn01/coderising/download/FileDownloader.java

@@ -1,8 +1,10 @@
-package com.dudy.learn01.download;
+package com.dudy.learn01.coderising.download;
 
-import com.dudy.learn01.download.api.Connection;
-import com.dudy.learn01.download.api.ConnectionManager;
-import com.dudy.learn01.download.api.DownloadListener;
+
+
+import com.dudy.learn01.coderising.download.api.Connection;
+import com.dudy.learn01.coderising.download.api.ConnectionManager;
+import com.dudy.learn01.coderising.download.api.DownloadListener;
 
 import java.io.IOException;
 import java.util.concurrent.CountDownLatch;
@@ -14,9 +16,9 @@ public class FileDownloader {
 
     private  String url;
 
-	private  DownloadListener listener;
+	private DownloadListener listener;
 
-	private  ConnectionManager cm;
+	private ConnectionManager cm;
 
 
 	public FileDownloader(String _url) {

group04/1796244932/learn01/src/main/java/com/dudy/learn01/download/api/Connection.java → group04/1796244932/learn01/src/main/java/com/dudy/learn01/coderising/download/api/Connection.java

@@ -1,4 +1,4 @@
-package com.dudy.learn01.download.api;
+package com.dudy.learn01.coderising.download.api;
 
 import java.io.IOException;
 

group04/1796244932/learn01/src/main/java/com/dudy/learn01/download/api/ConnectionException.java → group04/1796244932/learn01/src/main/java/com/dudy/learn01/coderising/download/api/ConnectionException.java

@@ -1,4 +1,4 @@
-package com.dudy.learn01.download.api;
+package com.dudy.learn01.coderising.download.api;
 
 public class ConnectionException extends Exception {
 

group04/1796244932/learn01/src/main/java/com/dudy/learn01/download/api/ConnectionManager.java → group04/1796244932/learn01/src/main/java/com/dudy/learn01/coderising/download/api/ConnectionManager.java

@@ -1,4 +1,4 @@
-package com.dudy.learn01.download.api;
+package com.dudy.learn01.coderising.download.api;
 
 import java.io.IOException;
 import java.net.MalformedURLException;

group04/1796244932/learn01/src/main/java/com/dudy/learn01/download/api/DownloadListener.java → group04/1796244932/learn01/src/main/java/com/dudy/learn01/coderising/download/api/DownloadListener.java

@@ -1,5 +1,4 @@
-package com.dudy.learn01.download.api;
-
+package com.dudy.learn01.coderising.download.api;
 public interface DownloadListener {
     public void notifyFinished();
 }

group04/1796244932/learn01/src/main/java/com/dudy/learn01/download/impl/ConnectionImpl.java → group04/1796244932/learn01/src/main/java/com/dudy/learn01/coderising/download/impl/ConnectionImpl.java

@@ -1,6 +1,7 @@
-package com.dudy.learn01.download.impl;
+package com.dudy.learn01.coderising.download.impl;
 
-import com.dudy.learn01.download.api.Connection;
+
+import com.dudy.learn01.coderising.download.api.Connection;
 
 import java.io.*;
 import java.net.HttpURLConnection;

group04/1796244932/learn01/src/main/java/com/dudy/learn01/download/impl/ConnectionManagerImpl.java → group04/1796244932/learn01/src/main/java/com/dudy/learn01/coderising/download/impl/ConnectionManagerImpl.java

@@ -1,8 +1,10 @@
-package com.dudy.learn01.download.impl;
+package com.dudy.learn01.coderising.download.impl;
 
-import com.dudy.learn01.download.api.Connection;
-import com.dudy.learn01.download.api.ConnectionException;
-import com.dudy.learn01.download.api.ConnectionManager;
+
+
+import com.dudy.learn01.coderising.download.api.Connection;
+import com.dudy.learn01.coderising.download.api.ConnectionException;
+import com.dudy.learn01.coderising.download.api.ConnectionManager;
 
 import java.io.IOException;
 import java.net.HttpURLConnection;

group04/1796244932/learn01/src/main/java/com/dudy/learn01/coderising/jvm/attr/AttributeInfo.java

@@ -0,0 +1,19 @@
+package com.dudy.learn01.coderising.jvm.attr;
+
+public abstract class AttributeInfo {
+	public static final String CODE = "Code";
+	public static final String CONST_VALUE = "ConstantValue";
+	public static final String EXCEPTIONS = "Exceptions";
+	public static final String LINE_NUM_TABLE = "LineNumberTable";
+	public static final String LOCAL_VAR_TABLE = "LocalVariableTable";
+	public static final String STACK_MAP_TABLE = "StackMapTable";
+	int attrNameIndex;				
+	int attrLen ;
+	public AttributeInfo(int attrNameIndex, int attrLen) {
+
+		this.attrNameIndex = attrNameIndex;
+		this.attrLen = attrLen;
+	}
+
+
+}

group04/1796244932/learn01/src/main/java/com/dudy/learn01/coderising/jvm/attr/CodeAttr.java

@@ -0,0 +1,69 @@
+package com.dudy.learn01.coderising.jvm.attr;
+
+
+import com.dudy.learn01.coderising.jvm.clz.ClassFile;
+import com.dudy.learn01.coderising.jvm.cmd.ByteCodeCommand;
+import com.dudy.learn01.coderising.jvm.constant.ConstantPool;
+import com.dudy.learn01.coderising.jvm.loader.ByteCodeIterator;
+
+public class CodeAttr extends AttributeInfo {
+	private int maxStack ;
+	private int maxLocals ;
+	private int codeLen ;
+	private String code;
+	public String getCode() {
+		return code;
+	}
+
+	private ByteCodeCommand[] cmds ;
+	public ByteCodeCommand[] getCmds() {		
+		return cmds;
+	}
+	private LineNumberTable lineNumTable;
+	private LocalVariableTable localVarTable;
+	private StackMapTable stackMapTable;
+
+	public CodeAttr(int attrNameIndex, int attrLen, int maxStack, int maxLocals, int codeLen,String code ,ByteCodeCommand[] cmds) {
+		super(attrNameIndex, attrLen);
+		this.maxStack = maxStack;
+		this.maxLocals = maxLocals;
+		this.codeLen = codeLen;
+		this.code = code;
+		this.cmds = cmds;
+	}
+
+	public void setLineNumberTable(LineNumberTable t) {
+		this.lineNumTable = t;
+	}
+
+	public void setLocalVariableTable(LocalVariableTable t) {
+		this.localVarTable = t;		
+	}
+
+	public static CodeAttr parse(ClassFile clzFile, ByteCodeIterator iter){
+
+		return null;
+	}
+
+
+	public String toString(ConstantPool pool){
+		StringBuilder buffer = new StringBuilder();
+		//buffer.append("Code:").append(code).append("\n");
+		for(int i=0;i<cmds.length;i++){
+			buffer.append(cmds[i].toString(pool)).append("\n");
+		}
+		buffer.append("\n");
+		buffer.append(this.lineNumTable.toString());
+		buffer.append(this.localVarTable.toString(pool));
+		return buffer.toString();
+	}
+	private void setStackMapTable(StackMapTable t) {
+		this.stackMapTable = t;
+
+	}
+
+
+
+
+
+}