Merge
This commit is contained in:
Lana Steuck
commit
6806594310
@ -236,10 +236,6 @@ public class DocumentBuilderImpl extends DocumentBuilder
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String feature = (String) entry.getKey();
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String feature = (String) entry.getKey();
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boolean value = ((Boolean) entry.getValue()).booleanValue();
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boolean value = ((Boolean) entry.getValue()).booleanValue();
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domParser.setFeature(feature, value);
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domParser.setFeature(feature, value);
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if (feature.equals(XMLConstants.FEATURE_SECURE_PROCESSING)) {
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domParser.setProperty(ACCESS_EXTERNAL_DTD, "");
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domParser.setProperty(ACCESS_EXTERNAL_SCHEMA, "");
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}
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}
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}
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}
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}
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}
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}
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@ -242,10 +242,6 @@ public class SAXParserImpl extends javax.xml.parsers.SAXParser
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String feature = (String) entry.getKey();
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String feature = (String) entry.getKey();
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boolean value = ((Boolean) entry.getValue()).booleanValue();
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boolean value = ((Boolean) entry.getValue()).booleanValue();
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xmlReader.setFeature0(feature, value);
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xmlReader.setFeature0(feature, value);
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if (feature.equals(XMLConstants.FEATURE_SECURE_PROCESSING) && value) {
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xmlReader.setProperty0(ACCESS_EXTERNAL_DTD, "");
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xmlReader.setProperty0(ACCESS_EXTERNAL_SCHEMA, "");
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}
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}
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}
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}
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}
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}
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}
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@ -1,553 +0,0 @@
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/*
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* reserved comment block
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* DO NOT REMOVE OR ALTER!
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*/
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/*
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* Copyright 2001-2005 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.sun.org.apache.xerces.internal.xinclude;
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import java.io.InputStream;
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import java.io.IOException;
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import java.io.File;
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import java.io.FileInputStream;
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import java.util.Properties;
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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/**
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* This class is duplicated for each JAXP subpackage so keep it in sync.
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* It is package private and therefore is not exposed as part of the JAXP
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* API.
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* <p>
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* This code is designed to implement the JAXP 1.1 spec pluggability
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* feature and is designed to run on JDK version 1.1 and
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* later, and to compile on JDK 1.2 and onward.
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* The code also runs both as part of an unbundled jar file and
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* when bundled as part of the JDK.
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* <p>
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*
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*/
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final class ObjectFactory {
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//
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// Constants
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//
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// name of default properties file to look for in JDK's jre/lib directory
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private static final String DEFAULT_PROPERTIES_FILENAME = "xerces.properties";
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/** Set to true for debugging */
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private static final boolean DEBUG = false;
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/**
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* Default columns per line.
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*/
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private static final int DEFAULT_LINE_LENGTH = 80;
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/** cache the contents of the xerces.properties file.
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* Until an attempt has been made to read this file, this will
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* be null; if the file does not exist or we encounter some other error
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* during the read, this will be empty.
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*/
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private static Properties fXercesProperties = null;
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/***
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* Cache the time stamp of the xerces.properties file so
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* that we know if it's been modified and can invalidate
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* the cache when necessary.
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*/
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private static long fLastModified = -1;
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//
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// static methods
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//
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/**
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* Finds the implementation Class object in the specified order. The
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* specified order is the following:
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* <ol>
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* <li>query the system property using <code>System.getProperty</code>
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* <li>read <code>META-INF/services/<i>factoryId</i></code> file
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* <li>use fallback classname
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* </ol>
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*
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* @return Class object of factory, never null
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*
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* @param factoryId Name of the factory to find, same as
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* a property name
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* @param fallbackClassName Implementation class name, if nothing else
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* is found. Use null to mean no fallback.
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*
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* @exception ObjectFactory.ConfigurationError
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*/
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static Object createObject(String factoryId, String fallbackClassName)
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throws ConfigurationError {
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return createObject(factoryId, null, fallbackClassName);
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} // createObject(String,String):Object
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/**
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* Finds the implementation Class object in the specified order. The
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* specified order is the following:
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* <ol>
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* <li>query the system property using <code>System.getProperty</code>
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* <li>read <code>$java.home/lib/<i>propertiesFilename</i></code> file
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* <li>read <code>META-INF/services/<i>factoryId</i></code> file
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* <li>use fallback classname
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* </ol>
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*
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* @return Class object of factory, never null
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*
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* @param factoryId Name of the factory to find, same as
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* a property name
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* @param propertiesFilename The filename in the $java.home/lib directory
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* of the properties file. If none specified,
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* ${java.home}/lib/xerces.properties will be used.
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* @param fallbackClassName Implementation class name, if nothing else
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* is found. Use null to mean no fallback.
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*
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* @exception ObjectFactory.ConfigurationError
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*/
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static Object createObject(String factoryId,
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String propertiesFilename,
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String fallbackClassName)
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throws ConfigurationError
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{
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if (DEBUG) debugPrintln("debug is on");
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SecuritySupport ss = SecuritySupport.getInstance();
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ClassLoader cl = findClassLoader();
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// Use the system property first
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try {
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String systemProp = ss.getSystemProperty(factoryId);
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if (systemProp != null) {
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if (DEBUG) debugPrintln("found system property, value=" + systemProp);
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return newInstance(systemProp, cl, true);
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}
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} catch (SecurityException se) {
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// Ignore and continue w/ next location
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}
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// JAXP specific change
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// always use fallback class to avoid the expense of constantly
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// "stat"ing a non-existent "xerces.properties" and jar SPI entry
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// see CR 6400863: Expensive creating of SAX parser in Mustang
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if (true) {
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if (fallbackClassName == null) {
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throw new ConfigurationError(
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"Provider for " + factoryId + " cannot be found", null);
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}
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if (DEBUG) debugPrintln("using fallback, value=" + fallbackClassName);
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return newInstance(fallbackClassName, cl, true);
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}
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// Try to read from propertiesFilename, or $java.home/lib/xerces.properties
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String factoryClassName = null;
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// no properties file name specified; use $JAVA_HOME/lib/xerces.properties:
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if (propertiesFilename == null) {
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File propertiesFile = null;
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boolean propertiesFileExists = false;
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try {
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String javah = ss.getSystemProperty("java.home");
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propertiesFilename = javah + File.separator +
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"lib" + File.separator + DEFAULT_PROPERTIES_FILENAME;
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propertiesFile = new File(propertiesFilename);
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propertiesFileExists = ss.getFileExists(propertiesFile);
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} catch (SecurityException e) {
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// try again...
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fLastModified = -1;
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fXercesProperties = null;
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}
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synchronized (ObjectFactory.class) {
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boolean loadProperties = false;
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FileInputStream fis = null;
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try {
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// file existed last time
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if(fLastModified >= 0) {
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if(propertiesFileExists &&
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(fLastModified < (fLastModified = ss.getLastModified(propertiesFile)))) {
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loadProperties = true;
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} else {
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// file has stopped existing...
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if(!propertiesFileExists) {
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fLastModified = -1;
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fXercesProperties = null;
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} // else, file wasn't modified!
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}
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} else {
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// file has started to exist:
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if(propertiesFileExists) {
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loadProperties = true;
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fLastModified = ss.getLastModified(propertiesFile);
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} // else, nothing's changed
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}
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if(loadProperties) {
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// must never have attempted to read xerces.properties before (or it's outdeated)
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fXercesProperties = new Properties();
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fis = ss.getFileInputStream(propertiesFile);
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fXercesProperties.load(fis);
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}
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} catch (Exception x) {
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fXercesProperties = null;
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fLastModified = -1;
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// assert(x instanceof FileNotFoundException
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// || x instanceof SecurityException)
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// In both cases, ignore and continue w/ next location
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}
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finally {
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// try to close the input stream if one was opened.
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if (fis != null) {
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try {
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fis.close();
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}
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// Ignore the exception.
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catch (IOException exc) {}
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}
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}
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}
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if(fXercesProperties != null) {
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factoryClassName = fXercesProperties.getProperty(factoryId);
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}
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} else {
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FileInputStream fis = null;
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try {
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fis = ss.getFileInputStream(new File(propertiesFilename));
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Properties props = new Properties();
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props.load(fis);
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factoryClassName = props.getProperty(factoryId);
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} catch (Exception x) {
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// assert(x instanceof FileNotFoundException
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// || x instanceof SecurityException)
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// In both cases, ignore and continue w/ next location
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}
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finally {
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// try to close the input stream if one was opened.
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if (fis != null) {
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try {
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fis.close();
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}
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// Ignore the exception.
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catch (IOException exc) {}
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}
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}
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}
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if (factoryClassName != null) {
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if (DEBUG) debugPrintln("found in " + propertiesFilename + ", value=" + factoryClassName);
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return newInstance(factoryClassName, cl, true);
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}
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// Try Jar Service Provider Mechanism
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Object provider = findJarServiceProvider(factoryId);
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if (provider != null) {
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return provider;
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}
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if (fallbackClassName == null) {
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throw new ConfigurationError(
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"Provider for " + factoryId + " cannot be found", null);
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}
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if (DEBUG) debugPrintln("using fallback, value=" + fallbackClassName);
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return newInstance(fallbackClassName, cl, true);
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} // createObject(String,String,String):Object
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//
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// Private static methods
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//
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/** Prints a message to standard error if debugging is enabled. */
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private static void debugPrintln(String msg) {
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if (DEBUG) {
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|
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System.err.println("JAXP: " + msg);
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|
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}
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|
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} // debugPrintln(String)
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|
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||||||
/**
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* Figure out which ClassLoader to use. For JDK 1.2 and later use
|
|
||||||
* the context ClassLoader.
|
|
||||||
*/
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|
||||||
static ClassLoader findClassLoader()
|
|
||||||
throws ConfigurationError
|
|
||||||
{
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|
||||||
SecuritySupport ss = SecuritySupport.getInstance();
|
|
||||||
|
|
||||||
// Figure out which ClassLoader to use for loading the provider
|
|
||||||
// class. If there is a Context ClassLoader then use it.
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|
||||||
ClassLoader context = ss.getContextClassLoader();
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|
||||||
ClassLoader system = ss.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
|
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||||||
// (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
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|
||||||
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 = ss.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 = ss.getParentClassLoader(chain);
|
|
||||||
};
|
|
||||||
|
|
||||||
// Assert: Context ClassLoader not in chain of
|
|
||||||
// boot/extension/system ClassLoaders
|
|
||||||
return context;
|
|
||||||
} // findClassLoader():ClassLoader
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|
||||||
|
|
||||||
/**
|
|
||||||
* 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
|
|
||||||
{
|
|
||||||
SecuritySupport ss = SecuritySupport.getInstance();
|
|
||||||
String serviceId = "META-INF/services/" + factoryId;
|
|
||||||
InputStream is = null;
|
|
||||||
|
|
||||||
// First try the Context ClassLoader
|
|
||||||
ClassLoader cl = findClassLoader();
|
|
||||||
|
|
||||||
is = ss.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 = ss.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 = 5061904944269807898L;
|
|
||||||
|
|
||||||
//
|
|
||||||
// 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
|
|
||||||
@ -1,553 +0,0 @@
|
|||||||
/*
|
|
||||||
* reserved comment block
|
|
||||||
* DO NOT REMOVE OR ALTER!
|
|
||||||
*/
|
|
||||||
/*
|
|
||||||
* Copyright 2001-2005 The Apache Software Foundation.
|
|
||||||
*
|
|
||||||
* Licensed 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.serialize;
|
|
||||||
|
|
||||||
import java.io.InputStream;
|
|
||||||
import java.io.IOException;
|
|
||||||
import java.io.File;
|
|
||||||
import java.io.FileInputStream;
|
|
||||||
|
|
||||||
import java.util.Properties;
|
|
||||||
import java.io.BufferedReader;
|
|
||||||
import java.io.InputStreamReader;
|
|
||||||
|
|
||||||
/**
|
|
||||||
* 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>
|
|
||||||
*
|
|
||||||
*/
|
|
||||||
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");
|
|
||||||
|
|
||||||
SecuritySupport ss = SecuritySupport.getInstance();
|
|
||||||
ClassLoader cl = findClassLoader();
|
|
||||||
|
|
||||||
// Use the system property first
|
|
||||||
try {
|
|
||||||
String systemProp = ss.getSystemProperty(factoryId);
|
|
||||||
if (systemProp != null) {
|
|
||||||
if (DEBUG) debugPrintln("found system property, value=" + systemProp);
|
|
||||||
return newInstance(systemProp, cl, true);
|
|
||||||
}
|
|
||||||
} catch (SecurityException se) {
|
|
||||||
// Ignore and continue w/ next location
|
|
||||||
}
|
|
||||||
|
|
||||||
// JAXP specific change
|
|
||||||
// always use fallback class to avoid the expense of constantly
|
|
||||||
// "stat"ing a non-existent "xerces.properties" and jar SPI entry
|
|
||||||
// see CR 6400863: Expensive creating of SAX parser in Mustang
|
|
||||||
if (true) {
|
|
||||||
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);
|
|
||||||
}
|
|
||||||
|
|
||||||
// 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 = ss.getSystemProperty("java.home");
|
|
||||||
propertiesFilename = javah + File.separator +
|
|
||||||
"lib" + File.separator + DEFAULT_PROPERTIES_FILENAME;
|
|
||||||
propertiesFile = new File(propertiesFilename);
|
|
||||||
propertiesFileExists = ss.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 = ss.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 = ss.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 = ss.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 = ss.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
|
|
||||||
{
|
|
||||||
SecuritySupport ss = SecuritySupport.getInstance();
|
|
||||||
|
|
||||||
// Figure out which ClassLoader to use for loading the provider
|
|
||||||
// class. If there is a Context ClassLoader then use it.
|
|
||||||
ClassLoader context = ss.getContextClassLoader();
|
|
||||||
ClassLoader system = ss.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 = ss.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 = ss.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
|
|
||||||
{
|
|
||||||
SecuritySupport ss = SecuritySupport.getInstance();
|
|
||||||
String serviceId = "META-INF/services/" + factoryId;
|
|
||||||
InputStream is = null;
|
|
||||||
|
|
||||||
// First try the Context ClassLoader
|
|
||||||
ClassLoader cl = findClassLoader();
|
|
||||||
|
|
||||||
is = ss.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 = ss.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 = 937647395548533254L;
|
|
||||||
|
|
||||||
//
|
|
||||||
// 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
|
|
||||||
Loading…
x
Reference in New Issue
Block a user