jdk8-mips64-public/jaxws: comparison src/share/jaxws_classes/javax/xml/bind/ContextFinder.java

--1:000000000000
+:373ffda63c9a
+/*
+* Copyright (c) 2003, 2013, Oracle and/or its affiliates. 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.  Oracle designates this
+* particular file as subject to the "Classpath" exception as provided
+* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+* or visit www.oracle.com if you need additional information or have any
+* questions.
+*/
+package javax.xml.bind;
+import java.util.Iterator;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.UnsupportedEncodingException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.net.URL;
+import java.util.Map;
+import java.util.Properties;
+import java.util.StringTokenizer;
+import java.util.logging.ConsoleHandler;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import java.security.AccessController;
+import static javax.xml.bind.JAXBContext.JAXB_CONTEXT_FACTORY;
+/**
+* This class is package private and therefore is not exposed as part of the
+* JAXB API.
+*
+* This code is designed to implement the JAXB 1.0 spec pluggability feature
+*
+* @author <ul><li>Ryan Shoemaker, Sun Microsystems, Inc.</li></ul>
+* @see JAXBContext
+*/
+class ContextFinder {
+private static final Logger logger;
+static {
+logger = Logger.getLogger("javax.xml.bind");
+try {
+if (AccessController.doPrivileged(new GetPropertyAction("jaxb.debug")) != null) {
+// disconnect the logger from a bigger framework (if any)
+// and take the matters into our own hands
+logger.setUseParentHandlers(false);
+logger.setLevel(Level.ALL);
+ConsoleHandler handler = new ConsoleHandler();
+handler.setLevel(Level.ALL);
+logger.addHandler(handler);
+} else {
+// don't change the setting of this logger
+// to honor what other frameworks
+// have done on configurations.
+}
+} catch(Throwable t) {
+// just to be extra safe. in particular System.getProperty may throw
+// SecurityException.
+}
+}
+/**
+* If the {@link InvocationTargetException} wraps an exception that shouldn't be wrapped,
+* throw the wrapped exception.
+*/
+private static void handleInvocationTargetException(InvocationTargetException x) throws JAXBException {
+Throwable t = x.getTargetException();
+if( t != null ) {
+if( t instanceof JAXBException )
+// one of our exceptions, just re-throw
+throw (JAXBException)t;
+if( t instanceof RuntimeException )
+// avoid wrapping exceptions unnecessarily
+throw (RuntimeException)t;
+if( t instanceof Error )
+throw (Error)t;
+}
+}
+/**
+* Determine if two types (JAXBContext in this case) will generate a ClassCastException.
+*
+* For example, (targetType)originalType
+*
+* @param originalType
+*          The Class object of the type being cast
+* @param targetType
+*          The Class object of the type that is being cast to
+* @return JAXBException to be thrown.
+*/
+private static JAXBException handleClassCastException(Class originalType, Class targetType) {
+final URL targetTypeURL = which(targetType);
+return new JAXBException(Messages.format(Messages.ILLEGAL_CAST,
+// we don't care where the impl class is, we want to know where JAXBContext lives in the impl
+// class' ClassLoader
+getClassClassLoader(originalType).getResource("javax/xml/bind/JAXBContext.class"),
+targetTypeURL));
+}
+/**
+* Create an instance of a class using the specified ClassLoader
+*/
+static JAXBContext newInstance( String contextPath,
+String className,
+ClassLoader classLoader,
+Map properties )
+throws JAXBException {
+try {
+Class spFactory = safeLoadClass(className,classLoader);
+return newInstance(contextPath, spFactory, classLoader, properties);
+} catch (ClassNotFoundException x) {
+throw new JAXBException(
+Messages.format( Messages.PROVIDER_NOT_FOUND, className ),
+x);
+} catch (RuntimeException x) {
+// avoid wrapping RuntimeException to JAXBException,
+// because it indicates a bug in this code.
+throw x;
+} catch (Exception x) {
+// can't catch JAXBException because the method is hidden behind
+// reflection.  Root element collisions detected in the call to
+// createContext() are reported as JAXBExceptions - just re-throw it
+// some other type of exception - just wrap it
+throw new JAXBException(
+Messages.format( Messages.COULD_NOT_INSTANTIATE, className, x ),
+x);
+}
+}
+static JAXBContext newInstance( String contextPath,
+Class spFactory,
+ClassLoader classLoader,
+Map properties )
+throws JAXBException
+{
+try {
+/*
+* javax.xml.bind.context.factory points to a class which has a
+* static method called 'createContext' that
+* returns a javax.xml.JAXBContext.
+*/
+Object context = null;
+// first check the method that takes Map as the third parameter.
+// this is added in 2.0.
+try {
+Method m = spFactory.getMethod("createContext",String.class,ClassLoader.class,Map.class);
+// any failure in invoking this method would be considered fatal
+context = m.invoke(null,contextPath,classLoader,properties);
+} catch (NoSuchMethodException e) {
+// it's not an error for the provider not to have this method.
+}
+if(context==null) {
+// try the old method that doesn't take properties. compatible with 1.0.
+// it is an error for an implementation not to have both forms of the createContext method.
+Method m = spFactory.getMethod("createContext",String.class,ClassLoader.class);
+// any failure in invoking this method would be considered fatal
+context = m.invoke(null,contextPath,classLoader);
+}
+if(!(context instanceof JAXBContext)) {
+// the cast would fail, so generate an exception with a nice message
+throw handleClassCastException(context.getClass(), JAXBContext.class);
+}
+return (JAXBContext)context;
+} catch (InvocationTargetException x) {
+handleInvocationTargetException(x);
+// for other exceptions, wrap the internal target exception
+// with a JAXBException
+Throwable e = x;
+if(x.getTargetException()!=null)
+e = x.getTargetException();
+throw new JAXBException( Messages.format( Messages.COULD_NOT_INSTANTIATE, spFactory, e ), e );
+} catch (RuntimeException x) {
+// avoid wrapping RuntimeException to JAXBException,
+// because it indicates a bug in this code.
+throw x;
+} catch (Exception x) {
+// can't catch JAXBException because the method is hidden behind
+// reflection.  Root element collisions detected in the call to
+// createContext() are reported as JAXBExceptions - just re-throw it
+// some other type of exception - just wrap it
+throw new JAXBException(
+Messages.format( Messages.COULD_NOT_INSTANTIATE, spFactory, x ),
+x);
+}
+}
+/**
+* Create an instance of a class using the thread context ClassLoader
+*/
+static JAXBContext newInstance(
+Class[] classes,
+Map properties,
+String className) throws JAXBException {
+ClassLoader cl = getContextClassLoader();
+Class spi;
+try {
+spi = safeLoadClass(className,cl);
+} catch (ClassNotFoundException e) {
+throw new JAXBException(e);
+}
+if(logger.isLoggable(Level.FINE)) {
+// extra check to avoid costly which operation if not logged
+logger.log(Level.FINE, "loaded {0} from {1}", new Object[]{className, which(spi)});
+}
+return newInstance(classes, properties, spi);
+}
+static JAXBContext newInstance(Class[] classes,
+Map properties,
+Class spFactory) throws JAXBException {
+Method m;
+try {
+m = spFactory.getMethod("createContext", Class[].class, Map.class);
+} catch (NoSuchMethodException e) {
+throw new JAXBException(e);
+}
+try {
+Object context = m.invoke(null, classes, properties);
+if(!(context instanceof JAXBContext)) {
+// the cast would fail, so generate an exception with a nice message
+throw handleClassCastException(context.getClass(), JAXBContext.class);
+}
+return (JAXBContext)context;
+} catch (IllegalAccessException e) {
+throw new JAXBException(e);
+} catch (InvocationTargetException e) {
+handleInvocationTargetException(e);
+Throwable x = e;
+if (e.getTargetException() != null)
+x = e.getTargetException();
+throw new JAXBException(x);
+}
+}
+static JAXBContext find(String factoryId, String contextPath, ClassLoader classLoader, Map properties ) throws JAXBException {
+// TODO: do we want/need another layer of searching in $java.home/lib/jaxb.properties like JAXP?
+final String jaxbContextFQCN = JAXBContext.class.getName();
+// search context path for jaxb.properties first
+StringBuilder propFileName;
+StringTokenizer packages = new StringTokenizer( contextPath, ":" );
+String factoryClassName;
+if(!packages.hasMoreTokens())
+// no context is specified
+throw new JAXBException(Messages.format(Messages.NO_PACKAGE_IN_CONTEXTPATH));
+logger.fine("Searching jaxb.properties");
+while( packages.hasMoreTokens() ) {
+String packageName = packages.nextToken(":").replace('.','/');
+// com.acme.foo - > com/acme/foo/jaxb.properties
+propFileName = new StringBuilder().append(packageName).append("/jaxb.properties");
+Properties props = loadJAXBProperties( classLoader, propFileName.toString() );
+if (props != null) {
+if (props.containsKey(factoryId)) {
+factoryClassName = props.getProperty(factoryId);
+return newInstance( contextPath, factoryClassName, classLoader, properties );
+} else {
+throw new JAXBException(Messages.format(Messages.MISSING_PROPERTY, packageName, factoryId));
+}
+}
+}
+logger.fine("Searching the system property");
+// search for a system property second (javax.xml.bind.JAXBContext)
+factoryClassName = AccessController.doPrivileged(new GetPropertyAction(JAXBContext.JAXB_CONTEXT_FACTORY));
+if(  factoryClassName != null ) {
+return newInstance( contextPath, factoryClassName, classLoader, properties );
+} else { // leave this here to assure compatibility
+factoryClassName = AccessController.doPrivileged(new GetPropertyAction(jaxbContextFQCN));
+if(  factoryClassName != null ) {
+return newInstance( contextPath, factoryClassName, classLoader, properties );
+}
+}
+// OSGi search
+Class jaxbContext = lookupJaxbContextUsingOsgiServiceLoader();
+if (jaxbContext != null) {
+logger.fine("OSGi environment detected");
+return newInstance(contextPath, jaxbContext, classLoader, properties);
+}
+logger.fine("Searching META-INF/services");
+// search META-INF services next
+BufferedReader r = null;
+try {
+final StringBuilder resource = new StringBuilder().append("META-INF/services/").append(jaxbContextFQCN);
+final InputStream resourceStream =
+classLoader.getResourceAsStream(resource.toString());
+if (resourceStream != null) {
+r = new BufferedReader(new InputStreamReader(resourceStream, "UTF-8"));
+factoryClassName = r.readLine();
+if (factoryClassName != null) {
+factoryClassName = factoryClassName.trim();
+}
+r.close();
+return newInstance(contextPath, factoryClassName, classLoader, properties);
+} else {
+logger.log(Level.FINE, "Unable to load:{0}", resource.toString());
+}
+} catch (UnsupportedEncodingException e) {
+// should never happen
+throw new JAXBException(e);
+} catch (IOException e) {
+throw new JAXBException(e);
+} finally {
+try {
+if (r != null) {
+r.close();
+}
+} catch (IOException ex) {
+Logger.getLogger(ContextFinder.class.getName()).log(Level.SEVERE, null, ex);
+}
+}
+// else no provider found
+logger.fine("Trying to create the platform default provider");
+return newInstance(contextPath, PLATFORM_DEFAULT_FACTORY_CLASS, classLoader, properties);
+}
+static JAXBContext find( Class[] classes, Map properties ) throws JAXBException {
+final String jaxbContextFQCN = JAXBContext.class.getName();
+String factoryClassName;
+// search for jaxb.properties in the class loader of each class first
+for (final Class c : classes) {
+// this classloader is used only to load jaxb.properties, so doing this should be safe.
+ClassLoader classLoader = getClassClassLoader(c);
+Package pkg = c.getPackage();
+if(pkg==null)
+continue;       // this is possible for primitives, arrays, and classes that are loaded by poorly implemented ClassLoaders
+String packageName = pkg.getName().replace('.', '/');
+// TODO: do we want to optimize away searching the same package?  org.Foo, org.Bar, com.Baz
+//       classes from the same package might come from different class loades, so it might be a bad idea
+// TODO: it's easier to look things up from the class
+// c.getResourceAsStream("jaxb.properties");
+// build the resource name and use the property loader code
+String resourceName = packageName+"/jaxb.properties";
+logger.log(Level.FINE, "Trying to locate {0}", resourceName);
+Properties props = loadJAXBProperties(classLoader, resourceName);
+if (props == null) {
+logger.fine("  not found");
+} else {
+logger.fine("  found");
+if (props.containsKey(JAXB_CONTEXT_FACTORY)) {
+// trim() seems redundant, but adding to satisfy customer complaint
+factoryClassName = props.getProperty(JAXB_CONTEXT_FACTORY).trim();
+return newInstance(classes, properties, factoryClassName);
+} else {
+throw new JAXBException(Messages.format(Messages.MISSING_PROPERTY, packageName, JAXB_CONTEXT_FACTORY));
+}
+}
+}
+// search for a system property second (javax.xml.bind.JAXBContext)
+logger.log(Level.FINE, "Checking system property {0}", JAXBContext.JAXB_CONTEXT_FACTORY);
+factoryClassName = AccessController.doPrivileged(new GetPropertyAction(JAXBContext.JAXB_CONTEXT_FACTORY));
+if (factoryClassName != null) {
+logger.log(Level.FINE, "  found {0}", factoryClassName);
+return newInstance( classes, properties, factoryClassName );
+} else { // leave it here for compatibility reasons
+logger.fine("  not found");
+logger.log(Level.FINE, "Checking system property {0}", jaxbContextFQCN);
+factoryClassName = AccessController.doPrivileged(new GetPropertyAction(jaxbContextFQCN));
+if (factoryClassName != null) {
+logger.log(Level.FINE, "  found {0}", factoryClassName);
+return newInstance( classes, properties, factoryClassName );
+} else {
+logger.fine("  not found");
+}
+}
+// OSGi search
+Class jaxbContext = lookupJaxbContextUsingOsgiServiceLoader();
+if (jaxbContext != null) {
+logger.fine("OSGi environment detected");
+return newInstance(classes, properties, jaxbContext);
+}
+// search META-INF services next
+logger.fine("Checking META-INF/services");
+BufferedReader r = null;
+try {
+final String resource = new StringBuilder("META-INF/services/").append(jaxbContextFQCN).toString();
+ClassLoader classLoader = getContextClassLoader();
+URL resourceURL;
+if(classLoader==null)
+resourceURL = ClassLoader.getSystemResource(resource);
+else
+resourceURL = classLoader.getResource(resource);
+if (resourceURL != null) {
+logger.log(Level.FINE, "Reading {0}", resourceURL);
+r = new BufferedReader(new InputStreamReader(resourceURL.openStream(), "UTF-8"));
+factoryClassName = r.readLine();
+if (factoryClassName != null) {
+factoryClassName = factoryClassName.trim();
+}
+return newInstance(classes, properties, factoryClassName);
+} else {
+logger.log(Level.FINE, "Unable to find: {0}", resource);
+}
+} catch (UnsupportedEncodingException e) {
+// should never happen
+throw new JAXBException(e);
+} catch (IOException e) {
+throw new JAXBException(e);
+} finally {
+if (r != null) {
+try {
+r.close();
+} catch (IOException ex) {
+logger.log(Level.FINE, "Unable to close stream", ex);
+}
+}
+}
+// else no provider found
+logger.fine("Trying to create the platform default provider");
+return newInstance(classes, properties, PLATFORM_DEFAULT_FACTORY_CLASS);
+}
+private static Class lookupJaxbContextUsingOsgiServiceLoader() {
+try {
+// Use reflection to avoid having any dependency on ServiceLoader class
+Class target = Class.forName("com.sun.org.glassfish.hk2.osgiresourcelocator.ServiceLoader");
+Method m = target.getMethod("lookupProviderClasses", Class.class);
+Iterator iter = ((Iterable) m.invoke(null, JAXBContext.class)).iterator();
+return iter.hasNext() ? (Class)iter.next() : null;
+} catch(Exception e) {
+logger.log(Level.FINE, "Unable to find from OSGi: javax.xml.bind.JAXBContext");
+return null;
+}
+}
+private static Properties loadJAXBProperties( ClassLoader classLoader,
+String propFileName )
+throws JAXBException {
+Properties props = null;
+try {
+URL url;
+if(classLoader==null)
+url = ClassLoader.getSystemResource(propFileName);
+else
+url = classLoader.getResource( propFileName );
+if( url != null ) {
+logger.log(Level.FINE, "loading props from {0}", url);
+props = new Properties();
+InputStream is = url.openStream();
+props.load( is );
+is.close();
+}
+} catch( IOException ioe ) {
+logger.log(Level.FINE,"Unable to load "+propFileName,ioe);
+throw new JAXBException( ioe.toString(), ioe );
+}
+return props;
+}
+/**
+* Search the given ClassLoader for an instance of the specified class and
+* return a string representation of the URL that points to the resource.
+*
+* @param clazz
+*          The class to search for
+* @param loader
+*          The ClassLoader to search.  If this parameter is null, then the
+*          system class loader will be searched
+* @return
+*          the URL for the class or null if it wasn't found
+*/
+static URL which(Class clazz, ClassLoader loader) {
+String classnameAsResource = clazz.getName().replace('.', '/') + ".class";
+if(loader == null) {
+loader = getSystemClassLoader();
+}
+return loader.getResource(classnameAsResource);
+}
+/**
+* Get the URL for the Class from it's ClassLoader.
+*
+* Convenience method for {@link #which(Class, ClassLoader)}.
+*
+* Equivalent to calling: which(clazz, clazz.getClassLoader())
+*
+* @param clazz
+*          The class to search for
+* @return
+*          the URL for the class or null if it wasn't found
+*/
+static URL which(Class clazz) {
+return which(clazz, getClassClassLoader(clazz));
+}
+/**
+* When JAXB is in J2SE, rt.jar has to have a JAXB implementation.
+* However, rt.jar cannot have META-INF/services/javax.xml.bind.JAXBContext
+* because if it has, it will take precedence over any file that applications have
+* in their jar files.
+*
+* <p>
+* When the user bundles his own JAXB implementation, we'd like to use it, and we
+* want the platform default to be used only when there's no other JAXB provider.
+*
+* <p>
+* For this reason, we have to hard-code the class name into the API.
+*/
+private static final String PLATFORM_DEFAULT_FACTORY_CLASS = "com.sun.xml.internal.bind.v2.ContextFactory";
+/**
+* Loads the class, provided that the calling thread has an access to the class being loaded.
+*/
+private static Class safeLoadClass(String className, ClassLoader classLoader) throws ClassNotFoundException {
+logger.log(Level.FINE, "Trying to load {0}", className);
+try {
+// make sure that the current thread has an access to the package of the given name.
+SecurityManager s = System.getSecurityManager();
+if (s != null) {
+int i = className.lastIndexOf('.');
+if (i != -1) {
+s.checkPackageAccess(className.substring(0,i));
+}
+}
+if (classLoader == null) {
+return Class.forName(className);
+} else {
+return classLoader.loadClass(className);
+}
+} catch (SecurityException se) {
+// anyone can access the platform default factory class without permission
+if (PLATFORM_DEFAULT_FACTORY_CLASS.equals(className)) {
+return Class.forName(className);
+}
+throw se;
+}
+}
+private static ClassLoader getContextClassLoader() {
+if (System.getSecurityManager() == null) {
+return Thread.currentThread().getContextClassLoader();
+} else {
+return (ClassLoader) java.security.AccessController.doPrivileged(
+new java.security.PrivilegedAction() {
+public java.lang.Object run() {
+return Thread.currentThread().getContextClassLoader();
+}
+});
+}
+}
+private static ClassLoader getClassClassLoader(final Class c) {
+if (System.getSecurityManager() == null) {
+return c.getClassLoader();
+} else {
+return (ClassLoader) java.security.AccessController.doPrivileged(
+new java.security.PrivilegedAction() {
+public java.lang.Object run() {
+return c.getClassLoader();
+}
+});
+}
+}
+private static ClassLoader getSystemClassLoader() {
+if (System.getSecurityManager() == null) {
+return ClassLoader.getSystemClassLoader();
+} else {
+return (ClassLoader) java.security.AccessController.doPrivileged(
+new java.security.PrivilegedAction() {
+public java.lang.Object run() {
+return ClassLoader.getSystemClassLoader();
+}
+});
+}
+}
+}

Mercurial > jdk8-mips64-public > jaxws / file comparison

comparison: src/share/jaxws_classes/javax/xml/bind/ContextFinder.java

src/share/jaxws_classes/javax/xml/bind/ContextFinder.java