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package com.sun.tools.ws;
import com.sun.istack.tools.MaskingClassLoader;
import com.sun.istack.tools.ParallelWorldClassLoader;
import com.sun.tools.ws.resources.WscompileMessages;
import com.sun.tools.ws.wscompile.Options;
import com.sun.xml.bind.util.Which;
import javax.xml.ws.Service;
import javax.xml.ws.WebServiceFeature;
import javax.xml.namespace.QName;
import java.io.OutputStream;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
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 annotation processing classes,
* even if it's not available in the tool launcher classpath.
*
* @author Kohsuke Kawaguchi
*/
public final class Invoker {
/**
* The list of package prefixes we want the
* {@link MaskingClassLoader} to prevent the parent
* class loader from loading
*/
static final String[] maskedPackages = new String[]{
"com.sun.istack.tools.",
"com.sun.tools.jxc.",
"com.sun.tools.xjc.",
"com.sun.tools.ws.",
"com.sun.codemodel.",
"com.sun.relaxng.",
"com.sun.xml.xsom.",
"com.sun.xml.bind.",
"com.ctc.wstx.", //wsimport, wsgen ant task
"org.codehaus.stax2.", //wsimport, wsgen ant task
"com.sun.xml.messaging.saaj.", //wsgen ant task
"com.sun.xml.ws.",
"com.oracle.webservices.api." //wsgen
};
/**
* Escape hatch to work around IBM JDK problem.
* See http://www-128.ibm.com/developerworks/forums/dw_thread.jsp?nav=false&forum=367&thread=164718&cat=10
*/
public static final boolean noSystemProxies;
static {
boolean noSysProxiesProperty = false;
try {
noSysProxiesProperty = Boolean.getBoolean(Invoker.class.getName()+".noSystemProxies");
} catch(SecurityException e) {
// ignore
} finally {
noSystemProxies = noSysProxiesProperty;
}
}
static int invoke(String mainClass, String[] args) throws Throwable {
// use the platform default proxy if available.
// see sun.net.spi.DefaultProxySelector for details.
if(!noSystemProxies) {
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 {
int targetArgIndex = Arrays.asList(args).indexOf("-target");
Options.Target targetVersion;
if (targetArgIndex != -1) {
targetVersion = Options.Target.parse(args[targetArgIndex+1]);
} else {
targetVersion = Options.Target.getDefault();
}
Options.Target loadedVersion = Options.Target.getLoadedAPIVersion();
//Check if the target version is supported by the loaded API version
if (!loadedVersion.isLaterThan(targetVersion)) {
if (Service.class.getClassLoader() == null)
System.err.println(WscompileMessages.INVOKER_NEED_ENDORSED(loadedVersion.getVersion(), targetVersion.getVersion()));
else {
System.err.println(WscompileMessages.WRAPPER_TASK_LOADING_INCORRECT_API(loadedVersion.getVersion(), Which.which(Service.class), targetVersion.getVersion()));
}
return -1;
}
}
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 (InvocationTargetException e) {
throw e.getCause();
} catch(ClassNotFoundException e){
throw e;
}finally {
Thread.currentThread().setContextClassLoader(oldcc);
}
}
/**
* 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;
}
/**
* Returns true if the RI appears to be loading the JAX-WS 2.2 API.
*/
public static boolean checkIfLoading22API() {
try {
Service.class.getMethod("create",java.net.URL.class, QName.class, WebServiceFeature[].class);
// yup. things look good.
return true;
} catch (NoSuchMethodException e) {
} catch (LinkageError e) {
}
// nope
return false;
}
/**
* Creates a class loader that can load JAXB/WS 2.2 API,
* and then return a class loader that can RI classes, which can see all those APIs.
*/
public static ClassLoader createClassLoader(ClassLoader cl) throws ClassNotFoundException, IOException {
URL[] urls = findIstack22APIs(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 class loader loads the API
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 class loader for loading JAXB/WS 2.2 jar
*/
private static URL[] findIstack22APIs(ClassLoader cl) throws ClassNotFoundException, IOException {
List<URL> urls = new ArrayList<URL>();
if(Service.class.getClassLoader()==null) {
// JAX-WS API is loaded from bootstrap class loader
URL res = cl.getResource("javax/xml/ws/EndpointContext.class");
if(res==null)
throw new ClassNotFoundException("There's no JAX-WS 2.2 API in the classpath");
urls.add(ParallelWorldClassLoader.toJarUrl(res));
res = cl.getResource("javax/xml/bind/JAXBPermission.class");
if(res==null)
throw new ClassNotFoundException("There's no JAXB 2.2 API in the classpath");
urls.add(ParallelWorldClassLoader.toJarUrl(res));
}
return urls.toArray(new URL[urls.size()]);
}
}