From fb3dd9a9095abc40027318b1712d0184f6d60e73 Mon Sep 17 00:00:00 2001 From: antelder Date: Fri, 30 Oct 2009 08:00:47 +0000 Subject: Delete old M4 branch and start again to pick up all the recent trunk changes git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@831223 13f79535-47bb-0310-9956-ffa450edef68 --- .../sca/client/impl/SCAClientFactoryFinder.java | 241 --------------------- 1 file changed, 241 deletions(-) delete mode 100644 branches/sca-java-2.0-M4/modules/sca-api/src/main/java/org/oasisopen/sca/client/impl/SCAClientFactoryFinder.java (limited to 'branches/sca-java-2.0-M4/modules/sca-api/src/main/java/org/oasisopen/sca/client/impl/SCAClientFactoryFinder.java') diff --git a/branches/sca-java-2.0-M4/modules/sca-api/src/main/java/org/oasisopen/sca/client/impl/SCAClientFactoryFinder.java b/branches/sca-java-2.0-M4/modules/sca-api/src/main/java/org/oasisopen/sca/client/impl/SCAClientFactoryFinder.java deleted file mode 100644 index 5137f8a658..0000000000 --- a/branches/sca-java-2.0-M4/modules/sca-api/src/main/java/org/oasisopen/sca/client/impl/SCAClientFactoryFinder.java +++ /dev/null @@ -1,241 +0,0 @@ -/* - * Copyright(C) OASIS(R) 2005,2009. All Rights Reserved. - * OASIS trademark, IPR and other policies apply. - */ -package org.oasisopen.sca.client.impl; - -import java.io.BufferedReader; -import java.io.Closeable; -import java.io.IOException; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.net.URI; -import java.net.URL; -import java.util.Properties; - -import org.oasisopen.sca.SCARuntimeException; -import org.oasisopen.sca.client.SCAClientFactory; - -/** - * This is a default class that returns an SCAClientFactory implementation - - * this class can be replaced by a vendor implementation. - * - * @see SCAClientFactory - * @author OASIS Open - */ -public class SCAClientFactoryFinder { - - /** - * The name of the System Property used to determine the SPI implementation - * to use for the SCAClientFactory. - */ - private static final String SCA_CLIENT_FACTORY_PROVIDER_KEY = SCAClientFactory.class.getName(); - - /** - * The name of the file loaded from the ClassPath to determine 2488 the SPI - * implementation to use for the SCAClientFactory. 2489 - */ - private static final String SCA_CLIENT_FACTORY_PROVIDER_META_INF_SERVICE = "META-INF/services/" + SCA_CLIENT_FACTORY_PROVIDER_KEY; - - /** - * Private Constructor. - */ - private SCAClientFactoryFinder() { - } - - /** - * Creates an instance of the SCAClientFactory implementation. This - * discovers the SCAClientFactory implementation and instantiates the - * provider's implementation. - * - * @param properties Properties that may be used when creating a new - * instance of the SCAClient - * @param classLoader ClassLoader that may be used when creating a new - * instance of the SCAClient - * @return new instance of the SCAClientFactory - * @throws SCARuntimeException Failed to create SCAClientFactory - * implementation. - */ - public static SCAClientFactory find(Properties properties, ClassLoader classLoader, URI domainURI) { - if (classLoader == null) { - classLoader = getThreadContextClassLoader(); - if (classLoader == null) { - classLoader = SCAClientFactoryFinder.class.getClassLoader(); - } - } - final String factoryImplClassName = discoverProviderFactoryImplClass(properties, classLoader); - final Class factoryImplClass = loadProviderFactoryClass(factoryImplClassName, classLoader); - final SCAClientFactory factory = instantiateSCAClientFactoryClass(factoryImplClass, domainURI); - return factory; - } - - /** - * Gets the Context ClassLoader for the current Thread. - * - * @return The Context ClassLoader for the current Thread. - */ - private static ClassLoader getThreadContextClassLoader() { - final ClassLoader threadClassLoader = Thread.currentThread().getContextClassLoader(); - return threadClassLoader; - } - - /** - * Attempts to discover the class name for the SCAClientFactory - * implementation from the specified Properties, the System Properties or - * the specified ClassLoader. - * - * @return The class name of the SCAClientFactory implementation - * @throw SCARuntimeException Failed to find implementation for - * SCAClientFactory. - */ - private static String discoverProviderFactoryImplClass(Properties properties, ClassLoader classLoader) throws SCARuntimeException { - String providerClassName = checkPropertiesForSPIClassName(properties); - if (providerClassName != null) { - return providerClassName; - } - - providerClassName = checkPropertiesForSPIClassName(System.getProperties()); - if (providerClassName != null) { - return providerClassName; - } - - return checkMETAINFServicesForClassName(classLoader); - } - - /** - * Attempts to find the class name for the SCAClientFactory implementation - * from the specified Properties. - * - * @return The class name for the SCAClientFactory implementation or - * null if not found. - */ - private static String checkPropertiesForSPIClassName(Properties properties) { - if (properties == null) { - return null; - } - - final String providerClassName = properties.getProperty(SCA_CLIENT_FACTORY_PROVIDER_KEY); - if (providerClassName != null && providerClassName.length() > 0) { - return providerClassName; - } - - return null; - } - - /** - * Attempts to find the class name for the SCAClientFactory implementation - * from the META-INF/services directory - * - * @return The class name for the SCAClientFactory implementation or - * null if not found. - */ - private static String checkMETAINFServicesForClassName(ClassLoader cl) { - final URL url = cl.getResource(SCA_CLIENT_FACTORY_PROVIDER_META_INF_SERVICE); - if (url == null) { - return null; - } - - InputStream in = null; - try { - in = url.openStream(); - BufferedReader reader = null; - try { - reader = new BufferedReader(new InputStreamReader(in, "UTF-8")); - - String line; - while ((line = readNextLine(reader)) != null) { - if (!line.startsWith("#") && line.length() > 0) { - return line; - } - } - return null; - } finally { - closeStream(reader); - } - } catch (IOException ex) { - throw new SCARuntimeException("Failed to discover SCAClientFactory provider", ex); - } finally { - closeStream(in); - } - } - - /** - * Reads the next line from the reader and returns the trimmed version of - * that line - * - * @param reader The reader from which to read the next line - * @return The trimmed next line or null if the end of the - * stream has been reached - * @throws IOException I/O error occurred while reading from Reader - */ - private static String readNextLine(BufferedReader reader) throws IOException { - - String line = reader.readLine(); - if (line != null) { - line = line.trim(); - } - return line; - } - - /** - * Loads the specified SCAClientFactory implementation class. - * - * @param factoryImplClassName The name of the SCAClientFactory - * Implementation class to load - * @return The specified SCAClientFactory Implementation class - * @throws SCARuntimeException Failed to load the SCAClientFactory - * implementation class - */ - private static Class loadProviderFactoryClass(String factoryImplClassName, ClassLoader classLoader) - throws SCARuntimeException { - - try { - final Class providerClass = classLoader.loadClass(factoryImplClassName); - final Class providerFactoryClass = providerClass.asSubclass(SCAClientFactory.class); - return providerFactoryClass; - } catch (ClassNotFoundException ex) { - throw new SCARuntimeException("Failed to load SCAClientFactory implementation class " + factoryImplClassName, ex); - } catch (ClassCastException ex) { - throw new SCARuntimeException("Loaded SCAClientFactory implementation class " + factoryImplClassName - + " is not a subclass of " - + SCAClientFactory.class.getName(), ex); - } - } - - /** - * Instantiate an instance of the specified SCAClientFactory implementation - * class. - * - * @param factoryImplClass The SCAClientFactory implementation class to - * instantiate. - * @param domainURI - * @return An instance of the SCAClientFactory implementation class - * @throws SCARuntimeException Failed to instantiate the specified specified - * SCAClientFactory implementation class - */ - private static SCAClientFactory instantiateSCAClientFactoryClass(Class factoryImplClass, URI domainURI) throws SCARuntimeException { - - try { - final SCAClientFactory provider = factoryImplClass.getConstructor(URI.class).newInstance(domainURI); - return provider; - } catch (Throwable ex) { - ex.printStackTrace(); - throw new SCARuntimeException("Failed to instantiate SCAClientFactory implementation class " + factoryImplClass, ex); - } - } - - /** - * Utility method for closing Closeable Object. - * - * @param closeable The Object to close. - */ - private static void closeStream(Closeable closeable) { - if (closeable != null) { - try { - closeable.close(); - } catch (IOException ex) { - throw new SCARuntimeException("Failed to close stream", ex); - } - } - } -} -- cgit v1.2.3