diff options
Diffstat (limited to 'sca-java-1.x/tags/1.5-RC0/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultPackageProcessorExtensionPoint.java')
-rw-r--r-- | sca-java-1.x/tags/1.5-RC0/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultPackageProcessorExtensionPoint.java | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/sca-java-1.x/tags/1.5-RC0/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultPackageProcessorExtensionPoint.java b/sca-java-1.x/tags/1.5-RC0/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultPackageProcessorExtensionPoint.java deleted file mode 100644 index 3c25424325..0000000000 --- a/sca-java-1.x/tags/1.5-RC0/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/DefaultPackageProcessorExtensionPoint.java +++ /dev/null @@ -1,129 +0,0 @@ -/* - * 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.tuscany.sca.contribution.processor; - -import java.io.IOException; -import java.io.InputStream; -import java.lang.reflect.Constructor; -import java.net.MalformedURLException; -import java.net.URI; -import java.net.URL; -import java.util.HashMap; -import java.util.List; -import java.util.Map; -import java.util.Set; - -import org.apache.tuscany.sca.contribution.service.ContributionException; -import org.apache.tuscany.sca.extensibility.ServiceDeclaration; -import org.apache.tuscany.sca.extensibility.ServiceDiscovery; - -/** - * Default implementation of a package processor extension point. - * - * @version $Rev$ $Date$ - */ -public class DefaultPackageProcessorExtensionPoint implements PackageProcessorExtensionPoint { - - private Map<String, PackageProcessor> processors = new HashMap<String, PackageProcessor>(); - private boolean loaded; - - public DefaultPackageProcessorExtensionPoint() { - } - - public void addPackageProcessor(PackageProcessor processor) { - processors.put(processor.getPackageType(), processor); - } - - public void removePackageProcessor(PackageProcessor processor) { - processors.remove(processor.getPackageType()); - } - - public PackageProcessor getPackageProcessor(String contentType) { - loadProcessors(); - return processors.get(contentType); - } - - private synchronized void loadProcessors() { - if (loaded) - return; - - // Get the processor service declarations - Set<ServiceDeclaration> processorDeclarations; - try { - processorDeclarations = ServiceDiscovery.getInstance().getServiceDeclarations(PackageProcessor.class); - } catch (IOException e) { - throw new IllegalStateException(e); - } - - for (ServiceDeclaration processorDeclaration: processorDeclarations) { - Map<String, String> attributes = processorDeclaration.getAttributes(); - - // Load a URL artifact processor - String packageType = attributes.get("type"); - - // Create a processor wrapper and register it - PackageProcessor processor = new LazyPackageProcessor(packageType, processorDeclaration); - addPackageProcessor(processor); - } - - loaded = true; - } - - /** - * A facade for package processors. - */ - private static class LazyPackageProcessor implements PackageProcessor { - - private ServiceDeclaration processorDeclaration; - private String packageType; - private PackageProcessor processor; - - private LazyPackageProcessor(String packageType, ServiceDeclaration processorDeclaration) { - this.processorDeclaration = processorDeclaration; - this.packageType = packageType; - } - - public URL getArtifactURL(URL packageSourceURL, URI artifact) throws MalformedURLException { - return getProcessor().getArtifactURL(packageSourceURL, artifact); - } - - public List<URI> getArtifacts(URL packageSourceURL, InputStream inputStream) throws ContributionException, IOException { - return getProcessor().getArtifacts(packageSourceURL, inputStream); - } - - public String getPackageType() { - return packageType; - } - - @SuppressWarnings("unchecked") - private PackageProcessor getProcessor() { - if (processor == null) { - try { - Class<PackageProcessor> processorClass = (Class<PackageProcessor>)processorDeclaration.loadClass(); - Constructor<PackageProcessor> constructor = processorClass.getConstructor(); - processor = constructor.newInstance(); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return processor; - } - } -} |