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Posted to commits@servicemix.apache.org by jb...@apache.org on 2012/01/21 18:54:53 UTC
svn commit: r1234378 [4/6] - in /servicemix/smx4/bundles/trunk: ./
jaxp-ri-1.4.5/ jaxp-ri-1.4.5/src/ jaxp-ri-1.4.5/src/main/
jaxp-ri-1.4.5/src/main/java/ jaxp-ri-1.4.5/src/main/java/com/
jaxp-ri-1.4.5/src/main/java/com/sun/ jaxp-ri-1.4.5/src/main/java/...
Added: servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xerces/internal/impl/dv/ObjectFactory.java
URL: http://svn.apache.org/viewvc/servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xerces/internal/impl/dv/ObjectFactory.java?rev=1234378&view=auto
==============================================================================
--- servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xerces/internal/impl/dv/ObjectFactory.java (added)
+++ servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xerces/internal/impl/dv/ObjectFactory.java Sat Jan 21 17:54:51 2012
@@ -0,0 +1,539 @@
+/*
+ * 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.
+ */
+
+package com.sun.org.apache.xerces.internal.impl.dv;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.Properties;
+
+/**
+ * This class is duplicated for each JAXP subpackage so keep it in sync.
+ * It is package private and therefore is not exposed as part of the JAXP
+ * API.
+ * <p>
+ * This code is designed to implement the JAXP 1.1 spec pluggability
+ * feature and is designed to run on JDK version 1.1 and
+ * later, and to compile on JDK 1.2 and onward.
+ * The code also runs both as part of an unbundled jar file and
+ * when bundled as part of the JDK.
+ * <p>
+ *
+ * @xerces.internal
+ *
+ * @version $Id$
+ */
+final class ObjectFactory {
+
+ //
+ // Constants
+ //
+
+ // name of default properties file to look for in JDK's jre/lib directory
+ private static final String DEFAULT_PROPERTIES_FILENAME = "xerces.properties";
+
+ /** Set to true for debugging */
+ private static final boolean DEBUG = false;
+
+ /**
+ * Default columns per line.
+ */
+ private static final int DEFAULT_LINE_LENGTH = 80;
+
+ /** cache the contents of the xerces.properties file.
+ * Until an attempt has been made to read this file, this will
+ * be null; if the file does not exist or we encounter some other error
+ * during the read, this will be empty.
+ */
+ private static Properties fXercesProperties = null;
+
+ /***
+ * Cache the time stamp of the xerces.properties file so
+ * that we know if it's been modified and can invalidate
+ * the cache when necessary.
+ */
+ private static long fLastModified = -1;
+
+ //
+ // static methods
+ //
+
+ /**
+ * Finds the implementation Class object in the specified order. The
+ * specified order is the following:
+ * <ol>
+ * <li>query the system property using <code>System.getProperty</code>
+ * <li>read <code>META-INF/services/<i>factoryId</i></code> file
+ * <li>use fallback classname
+ * </ol>
+ *
+ * @return Class object of factory, never null
+ *
+ * @param factoryId Name of the factory to find, same as
+ * a property name
+ * @param fallbackClassName Implementation class name, if nothing else
+ * is found. Use null to mean no fallback.
+ *
+ * @exception ObjectFactory.ConfigurationError
+ */
+ static Object createObject(String factoryId, String fallbackClassName)
+ throws ConfigurationError {
+ return createObject(factoryId, null, fallbackClassName);
+ } // createObject(String,String):Object
+
+ /**
+ * Finds the implementation Class object in the specified order. The
+ * specified order is the following:
+ * <ol>
+ * <li>query the system property using <code>System.getProperty</code>
+ * <li>read <code>$java.home/lib/<i>propertiesFilename</i></code> file
+ * <li>read <code>META-INF/services/<i>factoryId</i></code> file
+ * <li>use fallback classname
+ * </ol>
+ *
+ * @return Class object of factory, never null
+ *
+ * @param factoryId Name of the factory to find, same as
+ * a property name
+ * @param propertiesFilename The filename in the $java.home/lib directory
+ * of the properties file. If none specified,
+ * ${java.home}/lib/xerces.properties will be used.
+ * @param fallbackClassName Implementation class name, if nothing else
+ * is found. Use null to mean no fallback.
+ *
+ * @exception ObjectFactory.ConfigurationError
+ */
+ static Object createObject(String factoryId,
+ String propertiesFilename,
+ String fallbackClassName)
+ throws ConfigurationError
+ {
+ if (DEBUG) debugPrintln("debug is on");
+
+ ClassLoader cl = findClassLoader();
+
+ // Use the system property first
+ try {
+ String systemProp = SecuritySupport.getInstance().getSystemProperty(factoryId);
+ if (systemProp != null && systemProp.length() > 0) {
+ if (DEBUG) debugPrintln("found system property, value=" + systemProp);
+ return newInstance(systemProp, cl, true);
+ }
+ } catch (SecurityException se) {
+ // Ignore and continue w/ next location
+ }
+
+ // Try to read from propertiesFilename, or $java.home/lib/xerces.properties
+ String factoryClassName = null;
+ // no properties file name specified; use $JAVA_HOME/lib/xerces.properties:
+ if (propertiesFilename == null) {
+ File propertiesFile = null;
+ boolean propertiesFileExists = false;
+ try {
+ String javah = SecuritySupport.getInstance().getSystemProperty("java.home");
+ propertiesFilename = javah + File.separator +
+ "lib" + File.separator + DEFAULT_PROPERTIES_FILENAME;
+ propertiesFile = new File(propertiesFilename);
+ propertiesFileExists = SecuritySupport.getInstance().getFileExists(propertiesFile);
+ } catch (SecurityException e) {
+ // try again...
+ fLastModified = -1;
+ fXercesProperties = null;
+ }
+
+ synchronized (ObjectFactory.class) {
+ boolean loadProperties = false;
+ FileInputStream fis = null;
+ try {
+ // file existed last time
+ if(fLastModified >= 0) {
+ if(propertiesFileExists &&
+ (fLastModified < (fLastModified = SecuritySupport.getInstance().getLastModified(propertiesFile)))) {
+ loadProperties = true;
+ } else {
+ // file has stopped existing...
+ if(!propertiesFileExists) {
+ fLastModified = -1;
+ fXercesProperties = null;
+ } // else, file wasn't modified!
+ }
+ } else {
+ // file has started to exist:
+ if(propertiesFileExists) {
+ loadProperties = true;
+ fLastModified = SecuritySupport.getInstance().getLastModified(propertiesFile);
+ } // else, nothing's changed
+ }
+ if(loadProperties) {
+ // must never have attempted to read xerces.properties before (or it's outdeated)
+ fXercesProperties = new Properties();
+ fis = SecuritySupport.getInstance().getFileInputStream(propertiesFile);
+ fXercesProperties.load(fis);
+ }
+ } catch (Exception x) {
+ fXercesProperties = null;
+ fLastModified = -1;
+ // assert(x instanceof FileNotFoundException
+ // || x instanceof SecurityException)
+ // In both cases, ignore and continue w/ next location
+ }
+ finally {
+ // try to close the input stream if one was opened.
+ if (fis != null) {
+ try {
+ fis.close();
+ }
+ // Ignore the exception.
+ catch (IOException exc) {}
+ }
+ }
+ }
+ if(fXercesProperties != null) {
+ factoryClassName = fXercesProperties.getProperty(factoryId);
+ }
+ } else {
+ FileInputStream fis = null;
+ try {
+ fis = SecuritySupport.getInstance().getFileInputStream(new File(propertiesFilename));
+ Properties props = new Properties();
+ props.load(fis);
+ factoryClassName = props.getProperty(factoryId);
+ } catch (Exception x) {
+ // assert(x instanceof FileNotFoundException
+ // || x instanceof SecurityException)
+ // In both cases, ignore and continue w/ next location
+ }
+ finally {
+ // try to close the input stream if one was opened.
+ if (fis != null) {
+ try {
+ fis.close();
+ }
+ // Ignore the exception.
+ catch (IOException exc) {}
+ }
+ }
+ }
+ if (factoryClassName != null) {
+ if (DEBUG) debugPrintln("found in " + propertiesFilename + ", value=" + factoryClassName);
+ return newInstance(factoryClassName, cl, true);
+ }
+
+ // Try Jar Service Provider Mechanism
+ Object provider = findJarServiceProvider(factoryId);
+ if (provider != null) {
+ return provider;
+ }
+
+ if (fallbackClassName == null) {
+ throw new ConfigurationError(
+ "Provider for " + factoryId + " cannot be found", null);
+ }
+
+ if (DEBUG) debugPrintln("using fallback, value=" + fallbackClassName);
+ return newInstance(fallbackClassName, cl, true);
+ } // createObject(String,String,String):Object
+
+ //
+ // Private static methods
+ //
+
+ /** Prints a message to standard error if debugging is enabled. */
+ private static void debugPrintln(String msg) {
+ if (DEBUG) {
+ System.err.println("JAXP: " + msg);
+ }
+ } // debugPrintln(String)
+
+ /**
+ * Figure out which ClassLoader to use. For JDK 1.2 and later use
+ * the context ClassLoader.
+ */
+ static ClassLoader findClassLoader()
+ throws ConfigurationError
+ {
+ // Now we just return the ClassLoader which loads this class
+ // to work in OSGI platform
+ return ObjectFactory.class.getClassLoader();
+ /*
+ // Figure out which ClassLoader to use for loading the provider
+ // class. If there is a Context ClassLoader then use it.
+ ClassLoader context = SecuritySupport.getInstance().getContextClassLoader();
+ ClassLoader system = SecuritySupport.getInstance().getSystemClassLoader();
+
+ ClassLoader chain = system;
+ while (true) {
+ if (context == chain) {
+ // Assert: we are on JDK 1.1 or we have no Context ClassLoader
+ // or any Context ClassLoader in chain of system classloader
+ // (including extension ClassLoader) so extend to widest
+ // ClassLoader (always look in system ClassLoader if Xerces
+ // is in boot/extension/system classpath and in current
+ // ClassLoader otherwise); normal classloaders delegate
+ // back to system ClassLoader first so this widening doesn't
+ // change the fact that context ClassLoader will be consulted
+ ClassLoader current = ObjectFactory.class.getClassLoader();
+
+ chain = system;
+ while (true) {
+ if (current == chain) {
+ // Assert: Current ClassLoader in chain of
+ // boot/extension/system ClassLoaders
+ return system;
+ }
+ if (chain == null) {
+ break;
+ }
+ chain = SecuritySupport.getInstance().getParentClassLoader(chain);
+ }
+
+ // Assert: Current ClassLoader not in chain of
+ // boot/extension/system ClassLoaders
+ return current;
+ }
+
+ if (chain == null) {
+ // boot ClassLoader reached
+ break;
+ }
+
+ // Check for any extension ClassLoaders in chain up to
+ // boot ClassLoader
+ chain = SecuritySupport.getInstance().getParentClassLoader(chain);
+ };
+
+ // Assert: Context ClassLoader not in chain of
+ // boot/extension/system ClassLoaders
+ return context;
+ */
+ } // findClassLoader():ClassLoader
+
+ /**
+ * Create an instance of a class using the specified ClassLoader
+ */
+ static Object newInstance(String className, ClassLoader cl,
+ boolean doFallback)
+ throws ConfigurationError
+ {
+ // assert(className != null);
+ try{
+ Class providerClass = findProviderClass(className, cl, doFallback);
+ Object instance = providerClass.newInstance();
+ if (DEBUG) debugPrintln("created new instance of " + providerClass +
+ " using ClassLoader: " + cl);
+ return instance;
+ } catch (ClassNotFoundException x) {
+ throw new ConfigurationError(
+ "Provider " + className + " not found", x);
+ } catch (Exception x) {
+ throw new ConfigurationError(
+ "Provider " + className + " could not be instantiated: " + x,
+ x);
+ }
+ }
+
+ /**
+ * Find a Class using the specified ClassLoader
+ */
+ static Class findProviderClass(String className, ClassLoader cl,
+ boolean doFallback)
+ throws ClassNotFoundException, ConfigurationError
+ {
+ //throw security exception if the calling thread is not allowed to access the package
+ //restrict the access to package as speicified in java.security policy
+ SecurityManager security = System.getSecurityManager();
+ if (security != null) {
+ final int lastDot = className.lastIndexOf(".");
+ String packageName = className;
+ if (lastDot != -1) packageName = className.substring(0, lastDot);
+ security.checkPackageAccess(packageName);
+ }
+ Class providerClass;
+ if (cl == null) {
+ // XXX Use the bootstrap ClassLoader. There is no way to
+ // load a class using the bootstrap ClassLoader that works
+ // in both JDK 1.1 and Java 2. However, this should still
+ // work b/c the following should be true:
+ //
+ // (cl == null) iff current ClassLoader == null
+ //
+ // Thus Class.forName(String) will use the current
+ // ClassLoader which will be the bootstrap ClassLoader.
+ providerClass = Class.forName(className);
+ } else {
+ try {
+ providerClass = cl.loadClass(className);
+ } catch (ClassNotFoundException x) {
+ if (doFallback) {
+ // Fall back to current classloader
+ ClassLoader current = ObjectFactory.class.getClassLoader();
+ if (current == null) {
+ providerClass = Class.forName(className);
+ } else if (cl != current) {
+ cl = current;
+ providerClass = cl.loadClass(className);
+ } else {
+ throw x;
+ }
+ } else {
+ throw x;
+ }
+ }
+ }
+
+ return providerClass;
+ }
+
+ /*
+ * Try to find provider using Jar Service Provider Mechanism
+ *
+ * @return instance of provider class if found or null
+ */
+ private static Object findJarServiceProvider(String factoryId)
+ throws ConfigurationError
+ {
+ String serviceId = "META-INF/services/" + factoryId;
+ InputStream is = null;
+
+ // First try the Context ClassLoader
+ ClassLoader cl = findClassLoader();
+
+ is = SecuritySupport.getInstance().getResourceAsStream(cl, serviceId);
+
+ // If no provider found then try the current ClassLoader
+ if (is == null) {
+ ClassLoader current = ObjectFactory.class.getClassLoader();
+ if (cl != current) {
+ cl = current;
+ is = SecuritySupport.getInstance().getResourceAsStream(cl, serviceId);
+ }
+ }
+
+ if (is == null) {
+ // No provider found
+ return null;
+ }
+
+ if (DEBUG) debugPrintln("found jar resource=" + serviceId +
+ " using ClassLoader: " + cl);
+
+ // Read the service provider name in UTF-8 as specified in
+ // the jar spec. Unfortunately this fails in Microsoft
+ // VJ++, which does not implement the UTF-8
+ // encoding. Theoretically, we should simply let it fail in
+ // that case, since the JVM is obviously broken if it
+ // doesn't support such a basic standard. But since there
+ // are still some users attempting to use VJ++ for
+ // development, we have dropped in a fallback which makes a
+ // second attempt using the platform's default encoding. In
+ // VJ++ this is apparently ASCII, which is a subset of
+ // UTF-8... and since the strings we'll be reading here are
+ // also primarily limited to the 7-bit ASCII range (at
+ // least, in English versions), this should work well
+ // enough to keep us on the air until we're ready to
+ // officially decommit from VJ++. [Edited comment from
+ // jkesselm]
+ BufferedReader rd;
+ try {
+ rd = new BufferedReader(new InputStreamReader(is, "UTF-8"), DEFAULT_LINE_LENGTH);
+ } catch (java.io.UnsupportedEncodingException e) {
+ rd = new BufferedReader(new InputStreamReader(is), DEFAULT_LINE_LENGTH);
+ }
+
+ String factoryClassName = null;
+ try {
+ // XXX Does not handle all possible input as specified by the
+ // Jar Service Provider specification
+ factoryClassName = rd.readLine();
+ } catch (IOException x) {
+ // No provider found
+ return null;
+ }
+ finally {
+ try {
+ // try to close the reader.
+ rd.close();
+ }
+ // Ignore the exception.
+ catch (IOException exc) {}
+ }
+
+ if (factoryClassName != null &&
+ ! "".equals(factoryClassName)) {
+ if (DEBUG) debugPrintln("found in resource, value="
+ + factoryClassName);
+
+ // Note: here we do not want to fall back to the current
+ // ClassLoader because we want to avoid the case where the
+ // resource file was found using one ClassLoader and the
+ // provider class was instantiated using a different one.
+ return newInstance(factoryClassName, cl, false);
+ }
+
+ // No provider found
+ return null;
+ }
+
+ //
+ // Classes
+ //
+
+ /**
+ * A configuration error.
+ */
+ static final class ConfigurationError
+ extends Error {
+
+ /** Serialization version. */
+ static final long serialVersionUID = 1914065341994951202L;
+
+ //
+ // Data
+ //
+
+ /** Exception. */
+ private Exception exception;
+
+ //
+ // Constructors
+ //
+
+ /**
+ * Construct a new instance with the specified detail string and
+ * exception.
+ */
+ ConfigurationError(String msg, Exception x) {
+ super(msg);
+ this.exception = x;
+ } // <init>(String,Exception)
+
+ //
+ // methods
+ //
+
+ /** Returns the exception associated to this error. */
+ Exception getException() {
+ return exception;
+ } // getException():Exception
+
+ } // class ConfigurationError
+
+} // class ObjectFactory
Added: servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xerces/internal/parsers/ObjectFactory.java
URL: http://svn.apache.org/viewvc/servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xerces/internal/parsers/ObjectFactory.java?rev=1234378&view=auto
==============================================================================
--- servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xerces/internal/parsers/ObjectFactory.java (added)
+++ servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xerces/internal/parsers/ObjectFactory.java Sat Jan 21 17:54:51 2012
@@ -0,0 +1,539 @@
+/*
+ * 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.
+ */
+
+package com.sun.org.apache.xerces.internal.parsers;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.Properties;
+
+/**
+ * This class is duplicated for each JAXP subpackage so keep it in sync.
+ * It is package private and therefore is not exposed as part of the JAXP
+ * API.
+ * <p>
+ * This code is designed to implement the JAXP 1.1 spec pluggability
+ * feature and is designed to run on JDK version 1.1 and
+ * later, and to compile on JDK 1.2 and onward.
+ * The code also runs both as part of an unbundled jar file and
+ * when bundled as part of the JDK.
+ * <p>
+ *
+ * @xerces.internal
+ *
+ * @version $Id$
+ */
+final class ObjectFactory {
+
+ //
+ // Constants
+ //
+
+ // name of default properties file to look for in JDK's jre/lib directory
+ private static final String DEFAULT_PROPERTIES_FILENAME = "xerces.properties";
+
+ /** Set to true for debugging */
+ private static final boolean DEBUG = false;
+
+ /**
+ * Default columns per line.
+ */
+ private static final int DEFAULT_LINE_LENGTH = 80;
+
+ /** cache the contents of the xerces.properties file.
+ * Until an attempt has been made to read this file, this will
+ * be null; if the file does not exist or we encounter some other error
+ * during the read, this will be empty.
+ */
+ private static Properties fXercesProperties = null;
+
+ /***
+ * Cache the time stamp of the xerces.properties file so
+ * that we know if it's been modified and can invalidate
+ * the cache when necessary.
+ */
+ private static long fLastModified = -1;
+
+ //
+ // static methods
+ //
+
+ /**
+ * Finds the implementation Class object in the specified order. The
+ * specified order is the following:
+ * <ol>
+ * <li>query the system property using <code>System.getProperty</code>
+ * <li>read <code>META-INF/services/<i>factoryId</i></code> file
+ * <li>use fallback classname
+ * </ol>
+ *
+ * @return Class object of factory, never null
+ *
+ * @param factoryId Name of the factory to find, same as
+ * a property name
+ * @param fallbackClassName Implementation class name, if nothing else
+ * is found. Use null to mean no fallback.
+ *
+ * @exception ObjectFactory.ConfigurationError
+ */
+ static Object createObject(String factoryId, String fallbackClassName)
+ throws ConfigurationError {
+ return createObject(factoryId, null, fallbackClassName);
+ } // createObject(String,String):Object
+
+ /**
+ * Finds the implementation Class object in the specified order. The
+ * specified order is the following:
+ * <ol>
+ * <li>query the system property using <code>System.getProperty</code>
+ * <li>read <code>$java.home/lib/<i>propertiesFilename</i></code> file
+ * <li>read <code>META-INF/services/<i>factoryId</i></code> file
+ * <li>use fallback classname
+ * </ol>
+ *
+ * @return Class object of factory, never null
+ *
+ * @param factoryId Name of the factory to find, same as
+ * a property name
+ * @param propertiesFilename The filename in the $java.home/lib directory
+ * of the properties file. If none specified,
+ * ${java.home}/lib/xerces.properties will be used.
+ * @param fallbackClassName Implementation class name, if nothing else
+ * is found. Use null to mean no fallback.
+ *
+ * @exception ObjectFactory.ConfigurationError
+ */
+ static Object createObject(String factoryId,
+ String propertiesFilename,
+ String fallbackClassName)
+ throws ConfigurationError
+ {
+ if (DEBUG) debugPrintln("debug is on");
+
+ ClassLoader cl = findClassLoader();
+
+ // Use the system property first
+ try {
+ String systemProp = SecuritySupport.getInstance().getSystemProperty(factoryId);
+ if (systemProp != null && systemProp.length() > 0) {
+ if (DEBUG) debugPrintln("found system property, value=" + systemProp);
+ return newInstance(systemProp, cl, true);
+ }
+ } catch (SecurityException se) {
+ // Ignore and continue w/ next location
+ }
+
+ // Try to read from propertiesFilename, or $java.home/lib/xerces.properties
+ String factoryClassName = null;
+ // no properties file name specified; use $JAVA_HOME/lib/xerces.properties:
+ if (propertiesFilename == null) {
+ File propertiesFile = null;
+ boolean propertiesFileExists = false;
+ try {
+ String javah = SecuritySupport.getInstance().getSystemProperty("java.home");
+ propertiesFilename = javah + File.separator +
+ "lib" + File.separator + DEFAULT_PROPERTIES_FILENAME;
+ propertiesFile = new File(propertiesFilename);
+ propertiesFileExists = SecuritySupport.getInstance().getFileExists(propertiesFile);
+ } catch (SecurityException e) {
+ // try again...
+ fLastModified = -1;
+ fXercesProperties = null;
+ }
+
+ synchronized (ObjectFactory.class) {
+ boolean loadProperties = false;
+ FileInputStream fis = null;
+ try {
+ // file existed last time
+ if(fLastModified >= 0) {
+ if(propertiesFileExists &&
+ (fLastModified < (fLastModified = SecuritySupport.getInstance().getLastModified(propertiesFile)))) {
+ loadProperties = true;
+ } else {
+ // file has stopped existing...
+ if(!propertiesFileExists) {
+ fLastModified = -1;
+ fXercesProperties = null;
+ } // else, file wasn't modified!
+ }
+ } else {
+ // file has started to exist:
+ if(propertiesFileExists) {
+ loadProperties = true;
+ fLastModified = SecuritySupport.getInstance().getLastModified(propertiesFile);
+ } // else, nothing's changed
+ }
+ if(loadProperties) {
+ // must never have attempted to read xerces.properties before (or it's outdeated)
+ fXercesProperties = new Properties();
+ fis = SecuritySupport.getInstance().getFileInputStream(propertiesFile);
+ fXercesProperties.load(fis);
+ }
+ } catch (Exception x) {
+ fXercesProperties = null;
+ fLastModified = -1;
+ // assert(x instanceof FileNotFoundException
+ // || x instanceof SecurityException)
+ // In both cases, ignore and continue w/ next location
+ }
+ finally {
+ // try to close the input stream if one was opened.
+ if (fis != null) {
+ try {
+ fis.close();
+ }
+ // Ignore the exception.
+ catch (IOException exc) {}
+ }
+ }
+ }
+ if(fXercesProperties != null) {
+ factoryClassName = fXercesProperties.getProperty(factoryId);
+ }
+ } else {
+ FileInputStream fis = null;
+ try {
+ fis = SecuritySupport.getInstance().getFileInputStream(new File(propertiesFilename));
+ Properties props = new Properties();
+ props.load(fis);
+ factoryClassName = props.getProperty(factoryId);
+ } catch (Exception x) {
+ // assert(x instanceof FileNotFoundException
+ // || x instanceof SecurityException)
+ // In both cases, ignore and continue w/ next location
+ }
+ finally {
+ // try to close the input stream if one was opened.
+ if (fis != null) {
+ try {
+ fis.close();
+ }
+ // Ignore the exception.
+ catch (IOException exc) {}
+ }
+ }
+ }
+ if (factoryClassName != null) {
+ if (DEBUG) debugPrintln("found in " + propertiesFilename + ", value=" + factoryClassName);
+ return newInstance(factoryClassName, cl, true);
+ }
+
+ // Try Jar Service Provider Mechanism
+ Object provider = findJarServiceProvider(factoryId);
+ if (provider != null) {
+ return provider;
+ }
+
+ if (fallbackClassName == null) {
+ throw new ConfigurationError(
+ "Provider for " + factoryId + " cannot be found", null);
+ }
+
+ if (DEBUG) debugPrintln("using fallback, value=" + fallbackClassName);
+ return newInstance(fallbackClassName, cl, true);
+ } // createObject(String,String,String):Object
+
+ //
+ // Private static methods
+ //
+
+ /** Prints a message to standard error if debugging is enabled. */
+ private static void debugPrintln(String msg) {
+ if (DEBUG) {
+ System.err.println("JAXP: " + msg);
+ }
+ } // debugPrintln(String)
+
+ /**
+ * Figure out which ClassLoader to use. For JDK 1.2 and later use
+ * the context ClassLoader.
+ */
+ static ClassLoader findClassLoader()
+ throws ConfigurationError
+ {
+ // Now we just return the ClassLoader which loads this class
+ // to work in OSGI platform
+ return ObjectFactory.class.getClassLoader();
+ /*
+ // Figure out which ClassLoader to use for loading the provider
+ // class. If there is a Context ClassLoader then use it.
+ ClassLoader context = SecuritySupport.getInstance().getContextClassLoader();
+ ClassLoader system = SecuritySupport.getInstance().getSystemClassLoader();
+
+ ClassLoader chain = system;
+ while (true) {
+ if (context == chain) {
+ // Assert: we are on JDK 1.1 or we have no Context ClassLoader
+ // or any Context ClassLoader in chain of system classloader
+ // (including extension ClassLoader) so extend to widest
+ // ClassLoader (always look in system ClassLoader if Xerces
+ // is in boot/extension/system classpath and in current
+ // ClassLoader otherwise); normal classloaders delegate
+ // back to system ClassLoader first so this widening doesn't
+ // change the fact that context ClassLoader will be consulted
+ ClassLoader current = ObjectFactory.class.getClassLoader();
+
+ chain = system;
+ while (true) {
+ if (current == chain) {
+ // Assert: Current ClassLoader in chain of
+ // boot/extension/system ClassLoaders
+ return system;
+ }
+ if (chain == null) {
+ break;
+ }
+ chain = SecuritySupport.getInstance().getParentClassLoader(chain);
+ }
+
+ // Assert: Current ClassLoader not in chain of
+ // boot/extension/system ClassLoaders
+ return current;
+ }
+
+ if (chain == null) {
+ // boot ClassLoader reached
+ break;
+ }
+
+ // Check for any extension ClassLoaders in chain up to
+ // boot ClassLoader
+ chain = SecuritySupport.getInstance().getParentClassLoader(chain);
+ };
+
+ // Assert: Context ClassLoader not in chain of
+ // boot/extension/system ClassLoaders
+ return context;
+ */
+ } // findClassLoader():ClassLoader
+
+ /**
+ * Create an instance of a class using the specified ClassLoader
+ */
+ static Object newInstance(String className, ClassLoader cl,
+ boolean doFallback)
+ throws ConfigurationError
+ {
+ // assert(className != null);
+ try{
+ Class providerClass = findProviderClass(className, cl, doFallback);
+ Object instance = providerClass.newInstance();
+ if (DEBUG) debugPrintln("created new instance of " + providerClass +
+ " using ClassLoader: " + cl);
+ return instance;
+ } catch (ClassNotFoundException x) {
+ throw new ConfigurationError(
+ "Provider " + className + " not found", x);
+ } catch (Exception x) {
+ throw new ConfigurationError(
+ "Provider " + className + " could not be instantiated: " + x,
+ x);
+ }
+ }
+
+ /**
+ * Find a Class using the specified ClassLoader
+ */
+ static Class findProviderClass(String className, ClassLoader cl,
+ boolean doFallback)
+ throws ClassNotFoundException, ConfigurationError
+ {
+ //throw security exception if the calling thread is not allowed to access the package
+ //restrict the access to package as speicified in java.security policy
+ SecurityManager security = System.getSecurityManager();
+ if (security != null) {
+ final int lastDot = className.lastIndexOf(".");
+ String packageName = className;
+ if (lastDot != -1) packageName = className.substring(0, lastDot);
+ security.checkPackageAccess(packageName);
+ }
+ Class providerClass;
+ if (cl == null) {
+ // XXX Use the bootstrap ClassLoader. There is no way to
+ // load a class using the bootstrap ClassLoader that works
+ // in both JDK 1.1 and Java 2. However, this should still
+ // work b/c the following should be true:
+ //
+ // (cl == null) iff current ClassLoader == null
+ //
+ // Thus Class.forName(String) will use the current
+ // ClassLoader which will be the bootstrap ClassLoader.
+ providerClass = Class.forName(className);
+ } else {
+ try {
+ providerClass = cl.loadClass(className);
+ } catch (ClassNotFoundException x) {
+ if (doFallback) {
+ // Fall back to current classloader
+ ClassLoader current = ObjectFactory.class.getClassLoader();
+ if (current == null) {
+ providerClass = Class.forName(className);
+ } else if (cl != current) {
+ cl = current;
+ providerClass = cl.loadClass(className);
+ } else {
+ throw x;
+ }
+ } else {
+ throw x;
+ }
+ }
+ }
+
+ return providerClass;
+ }
+
+ /*
+ * Try to find provider using Jar Service Provider Mechanism
+ *
+ * @return instance of provider class if found or null
+ */
+ private static Object findJarServiceProvider(String factoryId)
+ throws ConfigurationError
+ {
+ String serviceId = "META-INF/services/" + factoryId;
+ InputStream is = null;
+
+ // First try the Context ClassLoader
+ ClassLoader cl = findClassLoader();
+
+ is = SecuritySupport.getInstance().getResourceAsStream(cl, serviceId);
+
+ // If no provider found then try the current ClassLoader
+ if (is == null) {
+ ClassLoader current = ObjectFactory.class.getClassLoader();
+ if (cl != current) {
+ cl = current;
+ is = SecuritySupport.getInstance().getResourceAsStream(cl, serviceId);
+ }
+ }
+
+ if (is == null) {
+ // No provider found
+ return null;
+ }
+
+ if (DEBUG) debugPrintln("found jar resource=" + serviceId +
+ " using ClassLoader: " + cl);
+
+ // Read the service provider name in UTF-8 as specified in
+ // the jar spec. Unfortunately this fails in Microsoft
+ // VJ++, which does not implement the UTF-8
+ // encoding. Theoretically, we should simply let it fail in
+ // that case, since the JVM is obviously broken if it
+ // doesn't support such a basic standard. But since there
+ // are still some users attempting to use VJ++ for
+ // development, we have dropped in a fallback which makes a
+ // second attempt using the platform's default encoding. In
+ // VJ++ this is apparently ASCII, which is a subset of
+ // UTF-8... and since the strings we'll be reading here are
+ // also primarily limited to the 7-bit ASCII range (at
+ // least, in English versions), this should work well
+ // enough to keep us on the air until we're ready to
+ // officially decommit from VJ++. [Edited comment from
+ // jkesselm]
+ BufferedReader rd;
+ try {
+ rd = new BufferedReader(new InputStreamReader(is, "UTF-8"), DEFAULT_LINE_LENGTH);
+ } catch (java.io.UnsupportedEncodingException e) {
+ rd = new BufferedReader(new InputStreamReader(is), DEFAULT_LINE_LENGTH);
+ }
+
+ String factoryClassName = null;
+ try {
+ // XXX Does not handle all possible input as specified by the
+ // Jar Service Provider specification
+ factoryClassName = rd.readLine();
+ } catch (IOException x) {
+ // No provider found
+ return null;
+ }
+ finally {
+ try {
+ // try to close the reader.
+ rd.close();
+ }
+ // Ignore the exception.
+ catch (IOException exc) {}
+ }
+
+ if (factoryClassName != null &&
+ ! "".equals(factoryClassName)) {
+ if (DEBUG) debugPrintln("found in resource, value="
+ + factoryClassName);
+
+ // Note: here we do not want to fall back to the current
+ // ClassLoader because we want to avoid the case where the
+ // resource file was found using one ClassLoader and the
+ // provider class was instantiated using a different one.
+ return newInstance(factoryClassName, cl, false);
+ }
+
+ // No provider found
+ return null;
+ }
+
+ //
+ // Classes
+ //
+
+ /**
+ * A configuration error.
+ */
+ static final class ConfigurationError
+ extends Error {
+
+ /** Serialization version. */
+ static final long serialVersionUID = 1914065341994951202L;
+
+ //
+ // Data
+ //
+
+ /** Exception. */
+ private Exception exception;
+
+ //
+ // Constructors
+ //
+
+ /**
+ * Construct a new instance with the specified detail string and
+ * exception.
+ */
+ ConfigurationError(String msg, Exception x) {
+ super(msg);
+ this.exception = x;
+ } // <init>(String,Exception)
+
+ //
+ // methods
+ //
+
+ /** Returns the exception associated to this error. */
+ Exception getException() {
+ return exception;
+ } // getException():Exception
+
+ } // class ConfigurationError
+
+} // class ObjectFactory
Added: servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xerces/internal/xinclude/ObjectFactory.java
URL: http://svn.apache.org/viewvc/servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xerces/internal/xinclude/ObjectFactory.java?rev=1234378&view=auto
==============================================================================
--- servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xerces/internal/xinclude/ObjectFactory.java (added)
+++ servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xerces/internal/xinclude/ObjectFactory.java Sat Jan 21 17:54:51 2012
@@ -0,0 +1,539 @@
+/*
+ * 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.
+ */
+
+package com.sun.org.apache.xerces.internal.xinclude;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.Properties;
+
+/**
+ * This class is duplicated for each JAXP subpackage so keep it in sync.
+ * It is package private and therefore is not exposed as part of the JAXP
+ * API.
+ * <p>
+ * This code is designed to implement the JAXP 1.1 spec pluggability
+ * feature and is designed to run on JDK version 1.1 and
+ * later, and to compile on JDK 1.2 and onward.
+ * The code also runs both as part of an unbundled jar file and
+ * when bundled as part of the JDK.
+ * <p>
+ *
+ * @xerces.internal
+ *
+ * @version $Id$
+ */
+final class ObjectFactory {
+
+ //
+ // Constants
+ //
+
+ // name of default properties file to look for in JDK's jre/lib directory
+ private static final String DEFAULT_PROPERTIES_FILENAME = "xerces.properties";
+
+ /** Set to true for debugging */
+ private static final boolean DEBUG = false;
+
+ /**
+ * Default columns per line.
+ */
+ private static final int DEFAULT_LINE_LENGTH = 80;
+
+ /** cache the contents of the xerces.properties file.
+ * Until an attempt has been made to read this file, this will
+ * be null; if the file does not exist or we encounter some other error
+ * during the read, this will be empty.
+ */
+ private static Properties fXercesProperties = null;
+
+ /***
+ * Cache the time stamp of the xerces.properties file so
+ * that we know if it's been modified and can invalidate
+ * the cache when necessary.
+ */
+ private static long fLastModified = -1;
+
+ //
+ // static methods
+ //
+
+ /**
+ * Finds the implementation Class object in the specified order. The
+ * specified order is the following:
+ * <ol>
+ * <li>query the system property using <code>System.getProperty</code>
+ * <li>read <code>META-INF/services/<i>factoryId</i></code> file
+ * <li>use fallback classname
+ * </ol>
+ *
+ * @return Class object of factory, never null
+ *
+ * @param factoryId Name of the factory to find, same as
+ * a property name
+ * @param fallbackClassName Implementation class name, if nothing else
+ * is found. Use null to mean no fallback.
+ *
+ * @exception ObjectFactory.ConfigurationError
+ */
+ static Object createObject(String factoryId, String fallbackClassName)
+ throws ConfigurationError {
+ return createObject(factoryId, null, fallbackClassName);
+ } // createObject(String,String):Object
+
+ /**
+ * Finds the implementation Class object in the specified order. The
+ * specified order is the following:
+ * <ol>
+ * <li>query the system property using <code>System.getProperty</code>
+ * <li>read <code>$java.home/lib/<i>propertiesFilename</i></code> file
+ * <li>read <code>META-INF/services/<i>factoryId</i></code> file
+ * <li>use fallback classname
+ * </ol>
+ *
+ * @return Class object of factory, never null
+ *
+ * @param factoryId Name of the factory to find, same as
+ * a property name
+ * @param propertiesFilename The filename in the $java.home/lib directory
+ * of the properties file. If none specified,
+ * ${java.home}/lib/xerces.properties will be used.
+ * @param fallbackClassName Implementation class name, if nothing else
+ * is found. Use null to mean no fallback.
+ *
+ * @exception ObjectFactory.ConfigurationError
+ */
+ static Object createObject(String factoryId,
+ String propertiesFilename,
+ String fallbackClassName)
+ throws ConfigurationError
+ {
+ if (DEBUG) debugPrintln("debug is on");
+
+ ClassLoader cl = findClassLoader();
+
+ // Use the system property first
+ try {
+ String systemProp = SecuritySupport.getInstance().getSystemProperty(factoryId);
+ if (systemProp != null && systemProp.length() > 0) {
+ if (DEBUG) debugPrintln("found system property, value=" + systemProp);
+ return newInstance(systemProp, cl, true);
+ }
+ } catch (SecurityException se) {
+ // Ignore and continue w/ next location
+ }
+
+ // Try to read from propertiesFilename, or $java.home/lib/xerces.properties
+ String factoryClassName = null;
+ // no properties file name specified; use $JAVA_HOME/lib/xerces.properties:
+ if (propertiesFilename == null) {
+ File propertiesFile = null;
+ boolean propertiesFileExists = false;
+ try {
+ String javah = SecuritySupport.getInstance().getSystemProperty("java.home");
+ propertiesFilename = javah + File.separator +
+ "lib" + File.separator + DEFAULT_PROPERTIES_FILENAME;
+ propertiesFile = new File(propertiesFilename);
+ propertiesFileExists = SecuritySupport.getInstance().getFileExists(propertiesFile);
+ } catch (SecurityException e) {
+ // try again...
+ fLastModified = -1;
+ fXercesProperties = null;
+ }
+
+ synchronized (ObjectFactory.class) {
+ boolean loadProperties = false;
+ FileInputStream fis = null;
+ try {
+ // file existed last time
+ if(fLastModified >= 0) {
+ if(propertiesFileExists &&
+ (fLastModified < (fLastModified = SecuritySupport.getInstance().getLastModified(propertiesFile)))) {
+ loadProperties = true;
+ } else {
+ // file has stopped existing...
+ if(!propertiesFileExists) {
+ fLastModified = -1;
+ fXercesProperties = null;
+ } // else, file wasn't modified!
+ }
+ } else {
+ // file has started to exist:
+ if(propertiesFileExists) {
+ loadProperties = true;
+ fLastModified = SecuritySupport.getInstance().getLastModified(propertiesFile);
+ } // else, nothing's changed
+ }
+ if(loadProperties) {
+ // must never have attempted to read xerces.properties before (or it's outdeated)
+ fXercesProperties = new Properties();
+ fis = SecuritySupport.getInstance().getFileInputStream(propertiesFile);
+ fXercesProperties.load(fis);
+ }
+ } catch (Exception x) {
+ fXercesProperties = null;
+ fLastModified = -1;
+ // assert(x instanceof FileNotFoundException
+ // || x instanceof SecurityException)
+ // In both cases, ignore and continue w/ next location
+ }
+ finally {
+ // try to close the input stream if one was opened.
+ if (fis != null) {
+ try {
+ fis.close();
+ }
+ // Ignore the exception.
+ catch (IOException exc) {}
+ }
+ }
+ }
+ if(fXercesProperties != null) {
+ factoryClassName = fXercesProperties.getProperty(factoryId);
+ }
+ } else {
+ FileInputStream fis = null;
+ try {
+ fis = SecuritySupport.getInstance().getFileInputStream(new File(propertiesFilename));
+ Properties props = new Properties();
+ props.load(fis);
+ factoryClassName = props.getProperty(factoryId);
+ } catch (Exception x) {
+ // assert(x instanceof FileNotFoundException
+ // || x instanceof SecurityException)
+ // In both cases, ignore and continue w/ next location
+ }
+ finally {
+ // try to close the input stream if one was opened.
+ if (fis != null) {
+ try {
+ fis.close();
+ }
+ // Ignore the exception.
+ catch (IOException exc) {}
+ }
+ }
+ }
+ if (factoryClassName != null) {
+ if (DEBUG) debugPrintln("found in " + propertiesFilename + ", value=" + factoryClassName);
+ return newInstance(factoryClassName, cl, true);
+ }
+
+ // Try Jar Service Provider Mechanism
+ Object provider = findJarServiceProvider(factoryId);
+ if (provider != null) {
+ return provider;
+ }
+
+ if (fallbackClassName == null) {
+ throw new ConfigurationError(
+ "Provider for " + factoryId + " cannot be found", null);
+ }
+
+ if (DEBUG) debugPrintln("using fallback, value=" + fallbackClassName);
+ return newInstance(fallbackClassName, cl, true);
+ } // createObject(String,String,String):Object
+
+ //
+ // Private static methods
+ //
+
+ /** Prints a message to standard error if debugging is enabled. */
+ private static void debugPrintln(String msg) {
+ if (DEBUG) {
+ System.err.println("JAXP: " + msg);
+ }
+ } // debugPrintln(String)
+
+ /**
+ * Figure out which ClassLoader to use. For JDK 1.2 and later use
+ * the context ClassLoader.
+ */
+ static ClassLoader findClassLoader()
+ throws ConfigurationError
+ {
+ // Now we just return the ClassLoader which loads this class
+ // to work in OSGI platform
+ return ObjectFactory.class.getClassLoader();
+ /*
+ // Figure out which ClassLoader to use for loading the provider
+ // class. If there is a Context ClassLoader then use it.
+ ClassLoader context = SecuritySupport.getInstance().getContextClassLoader();
+ ClassLoader system = SecuritySupport.getInstance().getSystemClassLoader();
+
+ ClassLoader chain = system;
+ while (true) {
+ if (context == chain) {
+ // Assert: we are on JDK 1.1 or we have no Context ClassLoader
+ // or any Context ClassLoader in chain of system classloader
+ // (including extension ClassLoader) so extend to widest
+ // ClassLoader (always look in system ClassLoader if Xerces
+ // is in boot/extension/system classpath and in current
+ // ClassLoader otherwise); normal classloaders delegate
+ // back to system ClassLoader first so this widening doesn't
+ // change the fact that context ClassLoader will be consulted
+ ClassLoader current = ObjectFactory.class.getClassLoader();
+
+ chain = system;
+ while (true) {
+ if (current == chain) {
+ // Assert: Current ClassLoader in chain of
+ // boot/extension/system ClassLoaders
+ return system;
+ }
+ if (chain == null) {
+ break;
+ }
+ chain = SecuritySupport.getInstance().getParentClassLoader(chain);
+ }
+
+ // Assert: Current ClassLoader not in chain of
+ // boot/extension/system ClassLoaders
+ return current;
+ }
+
+ if (chain == null) {
+ // boot ClassLoader reached
+ break;
+ }
+
+ // Check for any extension ClassLoaders in chain up to
+ // boot ClassLoader
+ chain = SecuritySupport.getInstance().getParentClassLoader(chain);
+ };
+
+ // Assert: Context ClassLoader not in chain of
+ // boot/extension/system ClassLoaders
+ return context;
+ */
+ } // findClassLoader():ClassLoader
+
+ /**
+ * Create an instance of a class using the specified ClassLoader
+ */
+ static Object newInstance(String className, ClassLoader cl,
+ boolean doFallback)
+ throws ConfigurationError
+ {
+ // assert(className != null);
+ try{
+ Class providerClass = findProviderClass(className, cl, doFallback);
+ Object instance = providerClass.newInstance();
+ if (DEBUG) debugPrintln("created new instance of " + providerClass +
+ " using ClassLoader: " + cl);
+ return instance;
+ } catch (ClassNotFoundException x) {
+ throw new ConfigurationError(
+ "Provider " + className + " not found", x);
+ } catch (Exception x) {
+ throw new ConfigurationError(
+ "Provider " + className + " could not be instantiated: " + x,
+ x);
+ }
+ }
+
+ /**
+ * Find a Class using the specified ClassLoader
+ */
+ static Class findProviderClass(String className, ClassLoader cl,
+ boolean doFallback)
+ throws ClassNotFoundException, ConfigurationError
+ {
+ //throw security exception if the calling thread is not allowed to access the package
+ //restrict the access to package as speicified in java.security policy
+ SecurityManager security = System.getSecurityManager();
+ if (security != null) {
+ final int lastDot = className.lastIndexOf(".");
+ String packageName = className;
+ if (lastDot != -1) packageName = className.substring(0, lastDot);
+ security.checkPackageAccess(packageName);
+ }
+ Class providerClass;
+ if (cl == null) {
+ // XXX Use the bootstrap ClassLoader. There is no way to
+ // load a class using the bootstrap ClassLoader that works
+ // in both JDK 1.1 and Java 2. However, this should still
+ // work b/c the following should be true:
+ //
+ // (cl == null) iff current ClassLoader == null
+ //
+ // Thus Class.forName(String) will use the current
+ // ClassLoader which will be the bootstrap ClassLoader.
+ providerClass = Class.forName(className);
+ } else {
+ try {
+ providerClass = cl.loadClass(className);
+ } catch (ClassNotFoundException x) {
+ if (doFallback) {
+ // Fall back to current classloader
+ ClassLoader current = ObjectFactory.class.getClassLoader();
+ if (current == null) {
+ providerClass = Class.forName(className);
+ } else if (cl != current) {
+ cl = current;
+ providerClass = cl.loadClass(className);
+ } else {
+ throw x;
+ }
+ } else {
+ throw x;
+ }
+ }
+ }
+
+ return providerClass;
+ }
+
+ /*
+ * Try to find provider using Jar Service Provider Mechanism
+ *
+ * @return instance of provider class if found or null
+ */
+ private static Object findJarServiceProvider(String factoryId)
+ throws ConfigurationError
+ {
+ String serviceId = "META-INF/services/" + factoryId;
+ InputStream is = null;
+
+ // First try the Context ClassLoader
+ ClassLoader cl = findClassLoader();
+
+ is = SecuritySupport.getInstance().getResourceAsStream(cl, serviceId);
+
+ // If no provider found then try the current ClassLoader
+ if (is == null) {
+ ClassLoader current = ObjectFactory.class.getClassLoader();
+ if (cl != current) {
+ cl = current;
+ is = SecuritySupport.getInstance().getResourceAsStream(cl, serviceId);
+ }
+ }
+
+ if (is == null) {
+ // No provider found
+ return null;
+ }
+
+ if (DEBUG) debugPrintln("found jar resource=" + serviceId +
+ " using ClassLoader: " + cl);
+
+ // Read the service provider name in UTF-8 as specified in
+ // the jar spec. Unfortunately this fails in Microsoft
+ // VJ++, which does not implement the UTF-8
+ // encoding. Theoretically, we should simply let it fail in
+ // that case, since the JVM is obviously broken if it
+ // doesn't support such a basic standard. But since there
+ // are still some users attempting to use VJ++ for
+ // development, we have dropped in a fallback which makes a
+ // second attempt using the platform's default encoding. In
+ // VJ++ this is apparently ASCII, which is a subset of
+ // UTF-8... and since the strings we'll be reading here are
+ // also primarily limited to the 7-bit ASCII range (at
+ // least, in English versions), this should work well
+ // enough to keep us on the air until we're ready to
+ // officially decommit from VJ++. [Edited comment from
+ // jkesselm]
+ BufferedReader rd;
+ try {
+ rd = new BufferedReader(new InputStreamReader(is, "UTF-8"), DEFAULT_LINE_LENGTH);
+ } catch (java.io.UnsupportedEncodingException e) {
+ rd = new BufferedReader(new InputStreamReader(is), DEFAULT_LINE_LENGTH);
+ }
+
+ String factoryClassName = null;
+ try {
+ // XXX Does not handle all possible input as specified by the
+ // Jar Service Provider specification
+ factoryClassName = rd.readLine();
+ } catch (IOException x) {
+ // No provider found
+ return null;
+ }
+ finally {
+ try {
+ // try to close the reader.
+ rd.close();
+ }
+ // Ignore the exception.
+ catch (IOException exc) {}
+ }
+
+ if (factoryClassName != null &&
+ ! "".equals(factoryClassName)) {
+ if (DEBUG) debugPrintln("found in resource, value="
+ + factoryClassName);
+
+ // Note: here we do not want to fall back to the current
+ // ClassLoader because we want to avoid the case where the
+ // resource file was found using one ClassLoader and the
+ // provider class was instantiated using a different one.
+ return newInstance(factoryClassName, cl, false);
+ }
+
+ // No provider found
+ return null;
+ }
+
+ //
+ // Classes
+ //
+
+ /**
+ * A configuration error.
+ */
+ static final class ConfigurationError
+ extends Error {
+
+ /** Serialization version. */
+ static final long serialVersionUID = 1914065341994951202L;
+
+ //
+ // Data
+ //
+
+ /** Exception. */
+ private Exception exception;
+
+ //
+ // Constructors
+ //
+
+ /**
+ * Construct a new instance with the specified detail string and
+ * exception.
+ */
+ ConfigurationError(String msg, Exception x) {
+ super(msg);
+ this.exception = x;
+ } // <init>(String,Exception)
+
+ //
+ // methods
+ //
+
+ /** Returns the exception associated to this error. */
+ Exception getException() {
+ return exception;
+ } // getException():Exception
+
+ } // class ConfigurationError
+
+} // class ObjectFactory
Added: servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xml/internal/dtm/ObjectFactory.java
URL: http://svn.apache.org/viewvc/servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xml/internal/dtm/ObjectFactory.java?rev=1234378&view=auto
==============================================================================
--- servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xml/internal/dtm/ObjectFactory.java (added)
+++ servicemix/smx4/bundles/trunk/jaxp-ri-1.4.5/src/main/java/com/sun/org/apache/xml/internal/dtm/ObjectFactory.java Sat Jan 21 17:54:51 2012
@@ -0,0 +1,539 @@
+/*
+ * 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.
+ */
+
+package com.sun.org.apache.xml.internal.dtm;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.Properties;
+
+/**
+ * This class is duplicated for each JAXP subpackage so keep it in sync.
+ * It is package private and therefore is not exposed as part of the JAXP
+ * API.
+ * <p>
+ * This code is designed to implement the JAXP 1.1 spec pluggability
+ * feature and is designed to run on JDK version 1.1 and
+ * later, and to compile on JDK 1.2 and onward.
+ * The code also runs both as part of an unbundled jar file and
+ * when bundled as part of the JDK.
+ * <p>
+ *
+ * @xerces.internal
+ *
+ * @version $Id$
+ */
+final class ObjectFactory {
+
+ //
+ // Constants
+ //
+
+ // name of default properties file to look for in JDK's jre/lib directory
+ private static final String DEFAULT_PROPERTIES_FILENAME = "xerces.properties";
+
+ /** Set to true for debugging */
+ private static final boolean DEBUG = false;
+
+ /**
+ * Default columns per line.
+ */
+ private static final int DEFAULT_LINE_LENGTH = 80;
+
+ /** cache the contents of the xerces.properties file.
+ * Until an attempt has been made to read this file, this will
+ * be null; if the file does not exist or we encounter some other error
+ * during the read, this will be empty.
+ */
+ private static Properties fXercesProperties = null;
+
+ /***
+ * Cache the time stamp of the xerces.properties file so
+ * that we know if it's been modified and can invalidate
+ * the cache when necessary.
+ */
+ private static long fLastModified = -1;
+
+ //
+ // static methods
+ //
+
+ /**
+ * Finds the implementation Class object in the specified order. The
+ * specified order is the following:
+ * <ol>
+ * <li>query the system property using <code>System.getProperty</code>
+ * <li>read <code>META-INF/services/<i>factoryId</i></code> file
+ * <li>use fallback classname
+ * </ol>
+ *
+ * @return Class object of factory, never null
+ *
+ * @param factoryId Name of the factory to find, same as
+ * a property name
+ * @param fallbackClassName Implementation class name, if nothing else
+ * is found. Use null to mean no fallback.
+ *
+ * @exception ObjectFactory.ConfigurationError
+ */
+ static Object createObject(String factoryId, String fallbackClassName)
+ throws ConfigurationError {
+ return createObject(factoryId, null, fallbackClassName);
+ } // createObject(String,String):Object
+
+ /**
+ * Finds the implementation Class object in the specified order. The
+ * specified order is the following:
+ * <ol>
+ * <li>query the system property using <code>System.getProperty</code>
+ * <li>read <code>$java.home/lib/<i>propertiesFilename</i></code> file
+ * <li>read <code>META-INF/services/<i>factoryId</i></code> file
+ * <li>use fallback classname
+ * </ol>
+ *
+ * @return Class object of factory, never null
+ *
+ * @param factoryId Name of the factory to find, same as
+ * a property name
+ * @param propertiesFilename The filename in the $java.home/lib directory
+ * of the properties file. If none specified,
+ * ${java.home}/lib/xerces.properties will be used.
+ * @param fallbackClassName Implementation class name, if nothing else
+ * is found. Use null to mean no fallback.
+ *
+ * @exception ObjectFactory.ConfigurationError
+ */
+ static Object createObject(String factoryId,
+ String propertiesFilename,
+ String fallbackClassName)
+ throws ConfigurationError
+ {
+ if (DEBUG) debugPrintln("debug is on");
+
+ ClassLoader cl = findClassLoader();
+
+ // Use the system property first
+ try {
+ String systemProp = SecuritySupport.getInstance().getSystemProperty(factoryId);
+ if (systemProp != null && systemProp.length() > 0) {
+ if (DEBUG) debugPrintln("found system property, value=" + systemProp);
+ return newInstance(systemProp, cl, true);
+ }
+ } catch (SecurityException se) {
+ // Ignore and continue w/ next location
+ }
+
+ // Try to read from propertiesFilename, or $java.home/lib/xerces.properties
+ String factoryClassName = null;
+ // no properties file name specified; use $JAVA_HOME/lib/xerces.properties:
+ if (propertiesFilename == null) {
+ File propertiesFile = null;
+ boolean propertiesFileExists = false;
+ try {
+ String javah = SecuritySupport.getInstance().getSystemProperty("java.home");
+ propertiesFilename = javah + File.separator +
+ "lib" + File.separator + DEFAULT_PROPERTIES_FILENAME;
+ propertiesFile = new File(propertiesFilename);
+ propertiesFileExists = SecuritySupport.getInstance().getFileExists(propertiesFile);
+ } catch (SecurityException e) {
+ // try again...
+ fLastModified = -1;
+ fXercesProperties = null;
+ }
+
+ synchronized (ObjectFactory.class) {
+ boolean loadProperties = false;
+ FileInputStream fis = null;
+ try {
+ // file existed last time
+ if(fLastModified >= 0) {
+ if(propertiesFileExists &&
+ (fLastModified < (fLastModified = SecuritySupport.getInstance().getLastModified(propertiesFile)))) {
+ loadProperties = true;
+ } else {
+ // file has stopped existing...
+ if(!propertiesFileExists) {
+ fLastModified = -1;
+ fXercesProperties = null;
+ } // else, file wasn't modified!
+ }
+ } else {
+ // file has started to exist:
+ if(propertiesFileExists) {
+ loadProperties = true;
+ fLastModified = SecuritySupport.getInstance().getLastModified(propertiesFile);
+ } // else, nothing's changed
+ }
+ if(loadProperties) {
+ // must never have attempted to read xerces.properties before (or it's outdeated)
+ fXercesProperties = new Properties();
+ fis = SecuritySupport.getInstance().getFileInputStream(propertiesFile);
+ fXercesProperties.load(fis);
+ }
+ } catch (Exception x) {
+ fXercesProperties = null;
+ fLastModified = -1;
+ // assert(x instanceof FileNotFoundException
+ // || x instanceof SecurityException)
+ // In both cases, ignore and continue w/ next location
+ }
+ finally {
+ // try to close the input stream if one was opened.
+ if (fis != null) {
+ try {
+ fis.close();
+ }
+ // Ignore the exception.
+ catch (IOException exc) {}
+ }
+ }
+ }
+ if(fXercesProperties != null) {
+ factoryClassName = fXercesProperties.getProperty(factoryId);
+ }
+ } else {
+ FileInputStream fis = null;
+ try {
+ fis = SecuritySupport.getInstance().getFileInputStream(new File(propertiesFilename));
+ Properties props = new Properties();
+ props.load(fis);
+ factoryClassName = props.getProperty(factoryId);
+ } catch (Exception x) {
+ // assert(x instanceof FileNotFoundException
+ // || x instanceof SecurityException)
+ // In both cases, ignore and continue w/ next location
+ }
+ finally {
+ // try to close the input stream if one was opened.
+ if (fis != null) {
+ try {
+ fis.close();
+ }
+ // Ignore the exception.
+ catch (IOException exc) {}
+ }
+ }
+ }
+ if (factoryClassName != null) {
+ if (DEBUG) debugPrintln("found in " + propertiesFilename + ", value=" + factoryClassName);
+ return newInstance(factoryClassName, cl, true);
+ }
+
+ // Try Jar Service Provider Mechanism
+ Object provider = findJarServiceProvider(factoryId);
+ if (provider != null) {
+ return provider;
+ }
+
+ if (fallbackClassName == null) {
+ throw new ConfigurationError(
+ "Provider for " + factoryId + " cannot be found", null);
+ }
+
+ if (DEBUG) debugPrintln("using fallback, value=" + fallbackClassName);
+ return newInstance(fallbackClassName, cl, true);
+ } // createObject(String,String,String):Object
+
+ //
+ // Private static methods
+ //
+
+ /** Prints a message to standard error if debugging is enabled. */
+ private static void debugPrintln(String msg) {
+ if (DEBUG) {
+ System.err.println("JAXP: " + msg);
+ }
+ } // debugPrintln(String)
+
+ /**
+ * Figure out which ClassLoader to use. For JDK 1.2 and later use
+ * the context ClassLoader.
+ */
+ static ClassLoader findClassLoader()
+ throws ConfigurationError
+ {
+ // Now we just return the ClassLoader which loads this class
+ // to work in OSGI platform
+ return ObjectFactory.class.getClassLoader();
+ /*
+ // Figure out which ClassLoader to use for loading the provider
+ // class. If there is a Context ClassLoader then use it.
+ ClassLoader context = SecuritySupport.getInstance().getContextClassLoader();
+ ClassLoader system = SecuritySupport.getInstance().getSystemClassLoader();
+
+ ClassLoader chain = system;
+ while (true) {
+ if (context == chain) {
+ // Assert: we are on JDK 1.1 or we have no Context ClassLoader
+ // or any Context ClassLoader in chain of system classloader
+ // (including extension ClassLoader) so extend to widest
+ // ClassLoader (always look in system ClassLoader if Xerces
+ // is in boot/extension/system classpath and in current
+ // ClassLoader otherwise); normal classloaders delegate
+ // back to system ClassLoader first so this widening doesn't
+ // change the fact that context ClassLoader will be consulted
+ ClassLoader current = ObjectFactory.class.getClassLoader();
+
+ chain = system;
+ while (true) {
+ if (current == chain) {
+ // Assert: Current ClassLoader in chain of
+ // boot/extension/system ClassLoaders
+ return system;
+ }
+ if (chain == null) {
+ break;
+ }
+ chain = SecuritySupport.getInstance().getParentClassLoader(chain);
+ }
+
+ // Assert: Current ClassLoader not in chain of
+ // boot/extension/system ClassLoaders
+ return current;
+ }
+
+ if (chain == null) {
+ // boot ClassLoader reached
+ break;
+ }
+
+ // Check for any extension ClassLoaders in chain up to
+ // boot ClassLoader
+ chain = SecuritySupport.getInstance().getParentClassLoader(chain);
+ };
+
+ // Assert: Context ClassLoader not in chain of
+ // boot/extension/system ClassLoaders
+ return context;
+ */
+ } // findClassLoader():ClassLoader
+
+ /**
+ * Create an instance of a class using the specified ClassLoader
+ */
+ static Object newInstance(String className, ClassLoader cl,
+ boolean doFallback)
+ throws ConfigurationError
+ {
+ // assert(className != null);
+ try{
+ Class providerClass = findProviderClass(className, cl, doFallback);
+ Object instance = providerClass.newInstance();
+ if (DEBUG) debugPrintln("created new instance of " + providerClass +
+ " using ClassLoader: " + cl);
+ return instance;
+ } catch (ClassNotFoundException x) {
+ throw new ConfigurationError(
+ "Provider " + className + " not found", x);
+ } catch (Exception x) {
+ throw new ConfigurationError(
+ "Provider " + className + " could not be instantiated: " + x,
+ x);
+ }
+ }
+
+ /**
+ * Find a Class using the specified ClassLoader
+ */
+ static Class findProviderClass(String className, ClassLoader cl,
+ boolean doFallback)
+ throws ClassNotFoundException, ConfigurationError
+ {
+ //throw security exception if the calling thread is not allowed to access the package
+ //restrict the access to package as speicified in java.security policy
+ SecurityManager security = System.getSecurityManager();
+ if (security != null) {
+ final int lastDot = className.lastIndexOf(".");
+ String packageName = className;
+ if (lastDot != -1) packageName = className.substring(0, lastDot);
+ security.checkPackageAccess(packageName);
+ }
+ Class providerClass;
+ if (cl == null) {
+ // XXX Use the bootstrap ClassLoader. There is no way to
+ // load a class using the bootstrap ClassLoader that works
+ // in both JDK 1.1 and Java 2. However, this should still
+ // work b/c the following should be true:
+ //
+ // (cl == null) iff current ClassLoader == null
+ //
+ // Thus Class.forName(String) will use the current
+ // ClassLoader which will be the bootstrap ClassLoader.
+ providerClass = Class.forName(className);
+ } else {
+ try {
+ providerClass = cl.loadClass(className);
+ } catch (ClassNotFoundException x) {
+ if (doFallback) {
+ // Fall back to current classloader
+ ClassLoader current = ObjectFactory.class.getClassLoader();
+ if (current == null) {
+ providerClass = Class.forName(className);
+ } else if (cl != current) {
+ cl = current;
+ providerClass = cl.loadClass(className);
+ } else {
+ throw x;
+ }
+ } else {
+ throw x;
+ }
+ }
+ }
+
+ return providerClass;
+ }
+
+ /*
+ * Try to find provider using Jar Service Provider Mechanism
+ *
+ * @return instance of provider class if found or null
+ */
+ private static Object findJarServiceProvider(String factoryId)
+ throws ConfigurationError
+ {
+ String serviceId = "META-INF/services/" + factoryId;
+ InputStream is = null;
+
+ // First try the Context ClassLoader
+ ClassLoader cl = findClassLoader();
+
+ is = SecuritySupport.getInstance().getResourceAsStream(cl, serviceId);
+
+ // If no provider found then try the current ClassLoader
+ if (is == null) {
+ ClassLoader current = ObjectFactory.class.getClassLoader();
+ if (cl != current) {
+ cl = current;
+ is = SecuritySupport.getInstance().getResourceAsStream(cl, serviceId);
+ }
+ }
+
+ if (is == null) {
+ // No provider found
+ return null;
+ }
+
+ if (DEBUG) debugPrintln("found jar resource=" + serviceId +
+ " using ClassLoader: " + cl);
+
+ // Read the service provider name in UTF-8 as specified in
+ // the jar spec. Unfortunately this fails in Microsoft
+ // VJ++, which does not implement the UTF-8
+ // encoding. Theoretically, we should simply let it fail in
+ // that case, since the JVM is obviously broken if it
+ // doesn't support such a basic standard. But since there
+ // are still some users attempting to use VJ++ for
+ // development, we have dropped in a fallback which makes a
+ // second attempt using the platform's default encoding. In
+ // VJ++ this is apparently ASCII, which is a subset of
+ // UTF-8... and since the strings we'll be reading here are
+ // also primarily limited to the 7-bit ASCII range (at
+ // least, in English versions), this should work well
+ // enough to keep us on the air until we're ready to
+ // officially decommit from VJ++. [Edited comment from
+ // jkesselm]
+ BufferedReader rd;
+ try {
+ rd = new BufferedReader(new InputStreamReader(is, "UTF-8"), DEFAULT_LINE_LENGTH);
+ } catch (java.io.UnsupportedEncodingException e) {
+ rd = new BufferedReader(new InputStreamReader(is), DEFAULT_LINE_LENGTH);
+ }
+
+ String factoryClassName = null;
+ try {
+ // XXX Does not handle all possible input as specified by the
+ // Jar Service Provider specification
+ factoryClassName = rd.readLine();
+ } catch (IOException x) {
+ // No provider found
+ return null;
+ }
+ finally {
+ try {
+ // try to close the reader.
+ rd.close();
+ }
+ // Ignore the exception.
+ catch (IOException exc) {}
+ }
+
+ if (factoryClassName != null &&
+ ! "".equals(factoryClassName)) {
+ if (DEBUG) debugPrintln("found in resource, value="
+ + factoryClassName);
+
+ // Note: here we do not want to fall back to the current
+ // ClassLoader because we want to avoid the case where the
+ // resource file was found using one ClassLoader and the
+ // provider class was instantiated using a different one.
+ return newInstance(factoryClassName, cl, false);
+ }
+
+ // No provider found
+ return null;
+ }
+
+ //
+ // Classes
+ //
+
+ /**
+ * A configuration error.
+ */
+ static final class ConfigurationError
+ extends Error {
+
+ /** Serialization version. */
+ static final long serialVersionUID = 1914065341994951202L;
+
+ //
+ // Data
+ //
+
+ /** Exception. */
+ private Exception exception;
+
+ //
+ // Constructors
+ //
+
+ /**
+ * Construct a new instance with the specified detail string and
+ * exception.
+ */
+ ConfigurationError(String msg, Exception x) {
+ super(msg);
+ this.exception = x;
+ } // <init>(String,Exception)
+
+ //
+ // methods
+ //
+
+ /** Returns the exception associated to this error. */
+ Exception getException() {
+ return exception;
+ } // getException():Exception
+
+ } // class ConfigurationError
+
+} // class ObjectFactory