| /* |
| * 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 org.apache.axis2.metadata.registry; |
| |
| import org.apache.axis2.java.security.AccessController; |
| import org.apache.axis2.jaxws.ClientConfigurationFactory; |
| import org.apache.axis2.jaxws.ExceptionFactory; |
| import org.apache.axis2.jaxws.util.Constants; |
| import org.apache.axis2.jaxws.wsdl.WSDLReaderConfigurator; |
| import org.apache.axis2.jaxws.wsdl.WSDLReaderConfiguratorImpl; |
| import org.apache.axis2.metadata.factory.ResourceFinderFactory; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.InputStreamReader; |
| import java.net.URL; |
| import java.security.PrivilegedActionException; |
| import java.security.PrivilegedExceptionAction; |
| import java.util.Hashtable; |
| import java.util.Map; |
| |
| public class MetadataFactoryRegistry { |
| |
| private static Log log = LogFactory.getLog(MetadataFactoryRegistry.class); |
| |
| private static String configurationFileLoc = null; |
| |
| private final static Map<Class,Object> table; |
| static { |
| table = new Hashtable<Class,Object>(); |
| table.put(ResourceFinderFactory.class, new ResourceFinderFactory()); |
| table.put(ClientConfigurationFactory.class, new ClientConfigurationFactory()); |
| table.put(WSDLReaderConfigurator.class, new WSDLReaderConfiguratorImpl()); |
| if(configurationFileLoc == null) { |
| if(log.isDebugEnabled()) { |
| log.debug("A configuration file location was not set. The " + |
| "following location will be used: " + |
| Constants.METADATA_REGISTRY_CONFIG_FILE); |
| } |
| configurationFileLoc = Constants.METADATA_REGISTRY_CONFIG_FILE; |
| } |
| loadConfigFromFile(); |
| } |
| |
| /** |
| * FactoryRegistry is currently a static singleton |
| */ |
| private MetadataFactoryRegistry() { |
| } |
| |
| /** |
| * getFactory |
| * @param intface of the Factory |
| * @return Object that is the factory implementation for the intface |
| */ |
| public static Object getFactory(Class intface) { |
| return table.get(intface); |
| } |
| |
| /** |
| * setFactory |
| * @param intface |
| * @param factoryObject |
| */ |
| public static void setFactory(Class intface, Object factoryObject){ |
| table.put(intface, factoryObject); |
| } |
| |
| /** |
| * This method will load a file, if it exists, that contains a list |
| * of interfaces and custom implementations. This allows for non- |
| * programmatic registration of custom interface implementations |
| * with the MDQ layer. |
| */ |
| private static void loadConfigFromFile() { |
| String pairSeparator = "|"; |
| try { |
| ClassLoader classLoader = getContextClassLoader(null); |
| URL url = null; |
| url = classLoader.getResource(configurationFileLoc); |
| if(url == null) { |
| File file = new File(configurationFileLoc); |
| url = file.toURL(); |
| } |
| // the presence of this file is optional |
| if(url != null) { |
| if(log.isDebugEnabled()) { |
| log.debug("Found URL to MetadataFactoryRegistry configuration file: " + |
| configurationFileLoc); |
| } |
| BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream())); |
| String line = reader.readLine(); |
| |
| // the separator of the file is the '|' character |
| // to the left of the separator will be the interface and |
| // to the right will be the custom implementation |
| if(line != null && |
| line.indexOf("|") != -1) { |
| String interfaceName = line.substring(0, line.indexOf(pairSeparator)); |
| String implName = line.substring(line.indexOf(pairSeparator) + 1, |
| line.length()); |
| if(log.isDebugEnabled()) { |
| log.debug("For registered class: " + interfaceName + " the " + |
| "following implementation was found: " + implName); |
| } |
| Class intf = classLoader.loadClass(interfaceName); |
| Class impl = classLoader.loadClass(implName); |
| |
| // if we could load both we need to register them with our |
| // internal registry |
| if(intf != null && impl != null) { |
| if(log.isDebugEnabled()) { |
| log.debug("Loaded both interface and implementation class: " + |
| interfaceName + ":" + implName); |
| } |
| if(impl.getEnclosingClass() == null) { |
| table.put(intf, impl.newInstance()); |
| }else { |
| if(log.isWarnEnabled()) { |
| log.warn("The implementation class: " + impl.getClass().getName() + |
| " could not be lregistered because it is an inner class. " + |
| "In order to register file-based overrides, implementations " + |
| "must be public outer classes."); |
| } |
| } |
| }else { |
| if(log.isDebugEnabled()) { |
| log.debug("Could not load both interface and implementation class: " + |
| interfaceName + ":" + implName); |
| } |
| } |
| }else { |
| if(log.isDebugEnabled()) { |
| log.debug("Did not find File for MetadataFactoryRegistry configuration " + |
| "file: " + configurationFileLoc); |
| } |
| } |
| }else { |
| if(log.isDebugEnabled()) { |
| log.debug("Did not find URL for MetadataFactoryRegistry configuration " + |
| "file: " + configurationFileLoc); |
| } |
| } |
| } |
| catch(Throwable t) { |
| if(log.isDebugEnabled()) { |
| log.debug("The MetadataFactoryRegistry could not process the configuration file: " + |
| configurationFileLoc + " because of the following error: " + t.toString()); |
| } |
| } |
| } |
| |
| /** |
| * Package protected method to allow tests to set the location |
| * of the configuration file. |
| * @param configFileName |
| */ |
| static void setConfigurationFileLocation(String configFileLoc) { |
| configurationFileLoc = configFileLoc; |
| loadConfigFromFile(); |
| } |
| |
| private static ClassLoader getContextClassLoader(final ClassLoader classLoader) { |
| ClassLoader cl; |
| try { |
| cl = (ClassLoader) AccessController.doPrivileged( |
| new PrivilegedExceptionAction() { |
| public Object run() throws ClassNotFoundException { |
| return classLoader != null ? classLoader : Thread.currentThread().getContextClassLoader(); |
| } |
| } |
| ); |
| } catch (PrivilegedActionException e) { |
| if (log.isDebugEnabled()) { |
| log.debug("Exception thrown from AccessController: " + e.getMessage(), e); |
| } |
| throw ExceptionFactory.makeWebServiceException(e.getException()); |
| } |
| |
| return cl; |
| } |
| } |