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author | antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68> | 2011-02-10 08:35:14 +0000 |
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committer | antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68> | 2011-02-10 08:35:14 +0000 |
commit | 6580d98a517c053f8f646d2040ac4974165574c8 (patch) | |
tree | 0b58af20962c78acf524cd3a79a845438644e19a /sca-java-2.x/branches/2.0-Beta2/modules/sca-api/src/main/java/org/oasisopen/sca/client/impl/SCAClientFactoryFinderImpl.java | |
parent | 6f1fe9ddc82fb6ee92567bbb7dfcf77aed684208 (diff) |
Delete very old beta2 release branch
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1069271 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/branches/2.0-Beta2/modules/sca-api/src/main/java/org/oasisopen/sca/client/impl/SCAClientFactoryFinderImpl.java | 289 |
1 files changed, 0 insertions, 289 deletions
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/sca-api/src/main/java/org/oasisopen/sca/client/impl/SCAClientFactoryFinderImpl.java b/sca-java-2.x/branches/2.0-Beta2/modules/sca-api/src/main/java/org/oasisopen/sca/client/impl/SCAClientFactoryFinderImpl.java deleted file mode 100644 index 0f5eae7603..0000000000 --- a/sca-java-2.x/branches/2.0-Beta2/modules/sca-api/src/main/java/org/oasisopen/sca/client/impl/SCAClientFactoryFinderImpl.java +++ /dev/null @@ -1,289 +0,0 @@ -/* - * Copyright(C) OASIS(R) 2005,2010. All Rights Reserved. - * OASIS trademark, IPR and other policies apply. - */ -package org.oasisopen.sca.client.impl; - -import org.oasisopen.sca.client.SCAClientFactoryFinder; - -import java.io.BufferedReader; -import java.io.Closeable; -import java.io.IOException; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.lang.reflect.Constructor; -import java.net.URI; -import java.net.URL; -import java.util.Properties; - -import org.oasisopen.sca.NoSuchDomainException; -import org.oasisopen.sca.ServiceRuntimeException; -import org.oasisopen.sca.client.SCAClientFactory; - -/** - * This is a default implementation of an SCAClientFactoryFinder which is - * used to find an implementation of the SCAClientFactory interface. - * - * @see SCAClientFactoryFinder - * @see SCAClientFactory - * - * @author OASIS Open - */ -public class SCAClientFactoryFinderImpl implements 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 - * the SPI implementation to use for the SCAClientFactory. - */ - private static final String SCA_CLIENT_FACTORY_PROVIDER_META_INF_SERVICE - = "META-INF/services/" + SCA_CLIENT_FACTORY_PROVIDER_KEY; - - /** - * Public Constructor - */ - public SCAClientFactoryFinderImpl() { - } - - /** - * Creates an instance of the SCAClientFactorySPI implementation. - * This discovers the SCAClientFactorySPI 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 ServiceRuntimeException Failed to create SCAClientFactory - * Implementation. - */ - public SCAClientFactory find(Properties properties, - ClassLoader classLoader, - URI domainURI ) - throws NoSuchDomainException, ServiceRuntimeException { - if (classLoader == null) { - classLoader = getThreadContextClassLoader (); - } - final String factoryImplClassName = - discoverProviderFactoryImplClass(properties, classLoader); - final Class<? extends SCAClientFactory> 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 SCAClientFactorySPI - * implementation from the specified Properties, the System Properties - * or the specified ClassLoader. - * - * @return The class name of the SCAClientFactorySPI implementation - * @throw ServiceRuntimeException Failed to find implementation for - * SCAClientFactorySPI. - */ - private static String - discoverProviderFactoryImplClass(Properties properties, - ClassLoader classLoader) - throws ServiceRuntimeException { - String providerClassName = - checkPropertiesForSPIClassName(properties); - if (providerClassName != null) { - return providerClassName; - } - - providerClassName = - checkPropertiesForSPIClassName(System.getProperties()); - if (providerClassName != null) { - return providerClassName; - } - - providerClassName = checkMETAINFServicesForSPIClassName(classLoader); - if (providerClassName == null) { - throw new ServiceRuntimeException( - "Failed to find implementation for SCAClientFactory"); - } - - return providerClassName; - } - - /** - * Attempts to find the class name for the SCAClientFactorySPI - * implementation from the specified Properties. - * - * @return The class name for the SCAClientFactorySPI implementation - * or <code>null</code> 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 SCAClientFactorySPI - * implementation from the META-INF/services directory - * - * @return The class name for the SCAClientFactorySPI implementation or - * <code>null</code> if not found. - */ - private static String checkMETAINFServicesForSPIClassName(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 ServiceRuntimeException( - "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 <code>null</code> 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 ServiceRuntimeException Failed to load the SCAClientFactory - * Implementation class - */ - private static Class<? extends SCAClientFactory> - loadProviderFactoryClass(String factoryImplClassName, - ClassLoader classLoader) - throws ServiceRuntimeException { - - try { - final Class<?> providerClass = - classLoader.loadClass(factoryImplClassName); - final Class<? extends SCAClientFactory> providerFactoryClass = - providerClass.asSubclass(SCAClientFactory.class); - return providerFactoryClass; - } catch (ClassNotFoundException ex) { - throw new ServiceRuntimeException( - "Failed to load SCAClientFactory implementation class " - + factoryImplClassName, ex); - } catch (ClassCastException ex) { - throw new ServiceRuntimeException( - "Loaded SCAClientFactory implementation class " - + factoryImplClassName - + " is not a subclass of " - + SCAClientFactory.class.getName() , ex); - } - } - - /** - * Instantiate an instance of the specified SCAClientFactorySPI - * Implementation class. - * - * @param factoryImplClass The SCAClientFactorySPI Implementation - * class to instantiate. - * @return An instance of the SCAClientFactorySPI Implementation class - * @throws ServiceRuntimeException Failed to instantiate the specified - * specified SCAClientFactorySPI Implementation class - */ - private static SCAClientFactory instantiateSCAClientFactoryClass( - Class<? extends SCAClientFactory> factoryImplClass, - URI domainURI) - throws NoSuchDomainException, ServiceRuntimeException { - - try { - Constructor<? extends SCAClientFactory> URIConstructor = - factoryImplClass.getConstructor(domainURI.getClass()); - SCAClientFactory provider = - URIConstructor.newInstance( domainURI ); - return provider; - } catch (Throwable ex) { - throw new ServiceRuntimeException( - "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 ServiceRuntimeException("Failed to close stream", - ex); - } - } - } -} |