jaxws/src/share/classes/com/sun/tools/internal/ws/Invoker.java - platform/libcore - Git at Google

 /*
  * Copyright 2005-2006 Sun Microsystems, Inc.  All Rights Reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Sun designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Sun in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  * CA 95054 USA or visit www.sun.com if you need additional information or
  * have any questions.
  */

 package com.sun.tools.internal.ws;

 import com.sun.istack.internal.tools.MaskingClassLoader;
 import com.sun.istack.internal.tools.ParallelWorldClassLoader;
 import com.sun.tools.internal.ws.resources.WscompileMessages;
 import com.sun.tools.internal.xjc.api.util.ToolsJarNotFoundException;
 import com.sun.xml.internal.bind.util.Which;

 import javax.xml.ws.Service;
 import javax.xml.ws.WebServiceFeature;
 import java.io.File;
 import java.io.OutputStream;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.net.URLClassLoader;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;

 /**
  * Invokes JAX-WS tools in a special class loader that can pick up APT classes,
  * even if it's not available in the tool launcher classpath.
  *
  * @author Kohsuke Kawaguchi
  */
 public final class Invoker {
     static int invoke(String mainClass, String[] args) throws Throwable {
         // use the platform default proxy if available.
         // see sun.net.spi.DefaultProxySelector for details.
         try {
             System.setProperty("java.net.useSystemProxies","true");
         } catch (SecurityException e) {
             // failing to set this property isn't fatal
         }

         ClassLoader oldcc = Thread.currentThread().getContextClassLoader();
         try {
             ClassLoader cl = Invoker.class.getClassLoader();
             if(Arrays.asList(args).contains("-Xendorsed"))
                 cl = createClassLoader(cl); // perform JDK6 workaround hack
             else {
                 if(!checkIfLoading21API()) {
                     if(Service.class.getClassLoader()==null)
                         System.err.println(WscompileMessages.INVOKER_NEED_ENDORSED());
                     else
                         System.err.println(WscompileMessages.WRAPPER_TASK_LOADING_20_API(Which.which(Service.class)));
                     return -1;
                 }
                 //find and load tools.jar
                 List<URL> urls = new ArrayList<URL>();
                 findToolsJar(cl, urls);

                 if(urls.size() > 0){
                     List<String> mask = new ArrayList<String>(Arrays.asList(maskedPackages));

                     // first create a protected area so that we load JAXB/WS 2.1 API
                     // and everything that depends on them inside
                     cl = new MaskingClassLoader(cl,mask);

                     // then this classloader loads the API and tools.jar
                     cl = new URLClassLoader(urls.toArray(new URL[urls.size()]), cl);

                     // finally load the rest of the RI. The actual class files are loaded from ancestors
                     cl = new ParallelWorldClassLoader(cl,"");
                 }

             }

             Thread.currentThread().setContextClassLoader(cl);

             Class compileTool = cl.loadClass(mainClass);
             Constructor ctor = compileTool.getConstructor(OutputStream.class);
             Object tool = ctor.newInstance(System.out);
             Method runMethod = compileTool.getMethod("run",String[].class);
             boolean r = (Boolean)runMethod.invoke(tool,new Object[]{args});
             return r ? 0 : 1;
         } catch (ToolsJarNotFoundException e) {
             System.err.println(e.getMessage());
         } catch (InvocationTargetException e) {
             throw e.getCause();
         } catch(ClassNotFoundException e){
             throw e;
         }finally {
             Thread.currentThread().setContextClassLoader(oldcc);
         }

         return -1;
     }

     /**
      * Returns true if the RI appears to be loading the JAX-WS 2.1 API.
      */
     public static boolean checkIfLoading21API() {
         try {
             Service.class.getMethod("getPort",Class.class, WebServiceFeature[].class);
             // yup. things look good.
             return true;
         } catch (NoSuchMethodException e) {
         } catch (LinkageError e) {
         }
         // nope
         return false;
     }

     /**
      * Creates a classloader that can load JAXB/WS 2.1 API and tools.jar,
      * and then return a classloader that can RI classes, which can see all those APIs and tools.jar.
      */
     public static ClassLoader createClassLoader(ClassLoader cl) throws ClassNotFoundException, MalformedURLException, ToolsJarNotFoundException {

         URL[] urls = findIstackAPIs(cl);
         if(urls.length==0)
             return cl;  // we seem to be able to load everything already. no need for the hack

         List<String> mask = new ArrayList<String>(Arrays.asList(maskedPackages));
         if(urls.length>1) {
             // we need to load 2.1 API from side. so add them to the mask
             mask.add("javax.xml.bind.");
             mask.add("javax.xml.ws.");
         }

         // first create a protected area so that we load JAXB/WS 2.1 API
         // and everything that depends on them inside
         cl = new MaskingClassLoader(cl,mask);

         // then this classloader loads the API and tools.jar
         cl = new URLClassLoader(urls, cl);

         // finally load the rest of the RI. The actual class files are loaded from ancestors
         cl = new ParallelWorldClassLoader(cl,"");

         return cl;
     }

     /**
      * Creates a classloader for loading JAXB/WS 2.1 jar and tools.jar
      */
     private static URL[] findIstackAPIs(ClassLoader cl) throws ClassNotFoundException, MalformedURLException, ToolsJarNotFoundException {
         List<URL> urls = new ArrayList<URL>();

         if(Service.class.getClassLoader()==null) {
             // JAX-WS API is loaded from bootstrap classloader
             URL res = cl.getResource("javax/xml/ws/EndpointReference.class");
             if(res==null)
                 throw new ClassNotFoundException("There's no JAX-WS 2.1 API in the classpath");
             urls.add(ParallelWorldClassLoader.toJarUrl(res));

             res = cl.getResource("javax/xml/bind/annotation/XmlSeeAlso.class");
             if(res==null)
                 throw new ClassNotFoundException("There's no JAXB 2.1 API in the classpath");
             urls.add(ParallelWorldClassLoader.toJarUrl(res));
         }

         findToolsJar(cl, urls);

         return urls.toArray(new URL[urls.size()]);
     }

     private static void findToolsJar(ClassLoader cl, List<URL> urls) throws ToolsJarNotFoundException, MalformedURLException {
         try {
             Class.forName("com.sun.tools.javac.Main",false,cl);
             Class.forName("com.sun.tools.apt.Main",false,cl);
             // we can already load them in the parent class loader.
             // so no need to look for tools.jar.
             // this happens when we are run inside IDE/Ant, or
             // in Mac OS.
         } catch (ClassNotFoundException e) {
             // otherwise try to find tools.jar
             File jreHome = new File(System.getProperty("java.home"));
             File toolsJar = new File( jreHome.getParent(), "lib/tools.jar" );

             if (!toolsJar.exists()) {
                 throw new ToolsJarNotFoundException(toolsJar);
             }
             urls.add(toolsJar.toURL());
         }
     }

     /**
      * The list of package prefixes we want the
      * {@link MaskingClassLoader} to prevent the parent
      * classLoader from loading
      */
     public static String[] maskedPackages = new String[]{
         "com.sun.istack.internal.tools.",
         "com.sun.tools.internal.jxc.",
         "com.sun.tools.internal.xjc.",
         "com.sun.tools.internal.ws.",
         "com.sun.codemodel.internal.",
         "com.sun.relaxng.",
         "com.sun.xml.internal.xsom.",
         "com.sun.xml.internal.bind.",
         "com.sun.xml.internal.ws."
     };
 }
	/*
	* Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Sun designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Sun in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
	* CA 95054 USA or visit www.sun.com if you need additional information or
	* have any questions.
	*/

	package com.sun.tools.internal.ws;

	import com.sun.istack.internal.tools.MaskingClassLoader;
	import com.sun.istack.internal.tools.ParallelWorldClassLoader;
	import com.sun.tools.internal.ws.resources.WscompileMessages;
	import com.sun.tools.internal.xjc.api.util.ToolsJarNotFoundException;
	import com.sun.xml.internal.bind.util.Which;

	import javax.xml.ws.Service;
	import javax.xml.ws.WebServiceFeature;
	import java.io.File;
	import java.io.OutputStream;
	import java.lang.reflect.Constructor;
	import java.lang.reflect.InvocationTargetException;
	import java.lang.reflect.Method;
	import java.net.MalformedURLException;
	import java.net.URL;
	import java.net.URLClassLoader;
	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.List;

	/**
	* Invokes JAX-WS tools in a special class loader that can pick up APT classes,
	* even if it's not available in the tool launcher classpath.
	*
	* @author Kohsuke Kawaguchi
	*/
	public final class Invoker {
	static int invoke(String mainClass, String[] args) throws Throwable {
	// use the platform default proxy if available.
	// see sun.net.spi.DefaultProxySelector for details.
	try {
	System.setProperty("java.net.useSystemProxies","true");
	} catch (SecurityException e) {
	// failing to set this property isn't fatal
	}

	ClassLoader oldcc = Thread.currentThread().getContextClassLoader();
	try {
	ClassLoader cl = Invoker.class.getClassLoader();
	if(Arrays.asList(args).contains("-Xendorsed"))
	cl = createClassLoader(cl); // perform JDK6 workaround hack
	else {
	if(!checkIfLoading21API()) {
	if(Service.class.getClassLoader()==null)
	System.err.println(WscompileMessages.INVOKER_NEED_ENDORSED());
	else
	System.err.println(WscompileMessages.WRAPPER_TASK_LOADING_20_API(Which.which(Service.class)));
	return -1;
	}
	//find and load tools.jar
	List<URL> urls = new ArrayList<URL>();
	findToolsJar(cl, urls);

	if(urls.size() > 0){
	List<String> mask = new ArrayList<String>(Arrays.asList(maskedPackages));

	// first create a protected area so that we load JAXB/WS 2.1 API
	// and everything that depends on them inside
	cl = new MaskingClassLoader(cl,mask);

	// then this classloader loads the API and tools.jar
	cl = new URLClassLoader(urls.toArray(new URL[urls.size()]), cl);

	// finally load the rest of the RI. The actual class files are loaded from ancestors
	cl = new ParallelWorldClassLoader(cl,"");
	}

	}

	Thread.currentThread().setContextClassLoader(cl);

	Class compileTool = cl.loadClass(mainClass);
	Constructor ctor = compileTool.getConstructor(OutputStream.class);
	Object tool = ctor.newInstance(System.out);
	Method runMethod = compileTool.getMethod("run",String[].class);
	boolean r = (Boolean)runMethod.invoke(tool,new Object[]{args});
	return r ? 0 : 1;
	} catch (ToolsJarNotFoundException e) {
	System.err.println(e.getMessage());
	} catch (InvocationTargetException e) {
	throw e.getCause();
	} catch(ClassNotFoundException e){
	throw e;
	}finally {
	Thread.currentThread().setContextClassLoader(oldcc);
	}

	return -1;
	}

	/**
	* Returns true if the RI appears to be loading the JAX-WS 2.1 API.
	*/
	public static boolean checkIfLoading21API() {
	try {
	Service.class.getMethod("getPort",Class.class, WebServiceFeature[].class);
	// yup. things look good.
	return true;
	} catch (NoSuchMethodException e) {
	} catch (LinkageError e) {
	}
	// nope
	return false;
	}

	/**
	* Creates a classloader that can load JAXB/WS 2.1 API and tools.jar,
	* and then return a classloader that can RI classes, which can see all those APIs and tools.jar.
	*/
	public static ClassLoader createClassLoader(ClassLoader cl) throws ClassNotFoundException, MalformedURLException, ToolsJarNotFoundException {

	URL[] urls = findIstackAPIs(cl);
	if(urls.length==0)
	return cl; // we seem to be able to load everything already. no need for the hack

	List<String> mask = new ArrayList<String>(Arrays.asList(maskedPackages));
	if(urls.length>1) {
	// we need to load 2.1 API from side. so add them to the mask
	mask.add("javax.xml.bind.");
	mask.add("javax.xml.ws.");
	}

	// first create a protected area so that we load JAXB/WS 2.1 API
	// and everything that depends on them inside
	cl = new MaskingClassLoader(cl,mask);

	// then this classloader loads the API and tools.jar
	cl = new URLClassLoader(urls, cl);

	// finally load the rest of the RI. The actual class files are loaded from ancestors
	cl = new ParallelWorldClassLoader(cl,"");

	return cl;
	}

	/**
	* Creates a classloader for loading JAXB/WS 2.1 jar and tools.jar
	*/
	private static URL[] findIstackAPIs(ClassLoader cl) throws ClassNotFoundException, MalformedURLException, ToolsJarNotFoundException {
	List<URL> urls = new ArrayList<URL>();

	if(Service.class.getClassLoader()==null) {
	// JAX-WS API is loaded from bootstrap classloader
	URL res = cl.getResource("javax/xml/ws/EndpointReference.class");
	if(res==null)
	throw new ClassNotFoundException("There's no JAX-WS 2.1 API in the classpath");
	urls.add(ParallelWorldClassLoader.toJarUrl(res));

	res = cl.getResource("javax/xml/bind/annotation/XmlSeeAlso.class");
	if(res==null)
	throw new ClassNotFoundException("There's no JAXB 2.1 API in the classpath");
	urls.add(ParallelWorldClassLoader.toJarUrl(res));
	}

	findToolsJar(cl, urls);

	return urls.toArray(new URL[urls.size()]);
	}

	private static void findToolsJar(ClassLoader cl, List<URL> urls) throws ToolsJarNotFoundException, MalformedURLException {
	try {
	Class.forName("com.sun.tools.javac.Main",false,cl);
	Class.forName("com.sun.tools.apt.Main",false,cl);
	// we can already load them in the parent class loader.
	// so no need to look for tools.jar.
	// this happens when we are run inside IDE/Ant, or
	// in Mac OS.
	} catch (ClassNotFoundException e) {
	// otherwise try to find tools.jar
	File jreHome = new File(System.getProperty("java.home"));
	File toolsJar = new File( jreHome.getParent(), "lib/tools.jar" );

	if (!toolsJar.exists()) {
	throw new ToolsJarNotFoundException(toolsJar);
	}
	urls.add(toolsJar.toURL());
	}
	}

	/**
	* The list of package prefixes we want the
	* {@link MaskingClassLoader} to prevent the parent
	* classLoader from loading
	*/
	public static String[] maskedPackages = new String[]{
	"com.sun.istack.internal.tools.",
	"com.sun.tools.internal.jxc.",
	"com.sun.tools.internal.xjc.",
	"com.sun.tools.internal.ws.",
	"com.sun.codemodel.internal.",
	"com.sun.relaxng.",
	"com.sun.xml.internal.xsom.",
	"com.sun.xml.internal.bind.",
	"com.sun.xml.internal.ws."
	};
	}