diff options
author | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-20 23:53:35 +0000 |
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committer | lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68> | 2009-11-20 23:53:35 +0000 |
commit | a3c48da9bb8971497d414f86e352123d95b9c3da (patch) | |
tree | fdf0f3636b65946c061c8b2e89d657b488be274e /java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/DefaultContributionScannerExtensionPoint.java | |
parent | cc7496466097c3cb8e793ebf3e332b025705aaa7 (diff) |
Moving 2.x trunk
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@882795 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/DefaultContributionScannerExtensionPoint.java')
-rw-r--r-- | java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/DefaultContributionScannerExtensionPoint.java | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/DefaultContributionScannerExtensionPoint.java b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/DefaultContributionScannerExtensionPoint.java deleted file mode 100644 index 610a1eb7ba..0000000000 --- a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/scanner/DefaultContributionScannerExtensionPoint.java +++ /dev/null @@ -1,128 +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.scanner; - -import java.io.IOException; -import java.lang.reflect.Constructor; -import java.net.URL; -import java.util.Collection; -import java.util.HashMap; -import java.util.List; -import java.util.Map; - -import org.apache.tuscany.sca.contribution.Contribution; -import org.apache.tuscany.sca.contribution.processor.ContributionReadException; -import org.apache.tuscany.sca.core.ExtensionPointRegistry; -import org.apache.tuscany.sca.extensibility.ServiceDeclaration; - -/** - * Default implementation of a contribution scanner extension point. - * - * @version $Rev$ $Date$ - */ -public class DefaultContributionScannerExtensionPoint implements ContributionScannerExtensionPoint { - - private Map<String, ContributionScanner> scanners = new HashMap<String, ContributionScanner>(); - private boolean loaded; - private ExtensionPointRegistry registry; - - public DefaultContributionScannerExtensionPoint(ExtensionPointRegistry registry) { - this.registry = registry; - } - - public void addContributionScanner(ContributionScanner scanner) { - scanners.put(scanner.getContributionType(), scanner); - } - - public void removeContributionScanner(ContributionScanner scanner) { - scanners.remove(scanner.getContributionType()); - } - - public ContributionScanner getContributionScanner(String contentType) { - loadScanners(); - return scanners.get(contentType); - } - - private synchronized void loadScanners() { - if (loaded) - return; - - // Get the scanner service declarations - Collection<ServiceDeclaration> scannerDeclarations; - try { - scannerDeclarations = registry.getServiceDiscovery().getServiceDeclarations(ContributionScanner.class.getName()); - } catch (IOException e) { - throw new IllegalStateException(e); - } - - for (ServiceDeclaration scannerDeclaration: scannerDeclarations) { - Map<String, String> attributes = scannerDeclaration.getAttributes(); - - // Load a URL artifact scanner - String contributionType = attributes.get("type"); - - // Create a scanner wrapper and register it - ContributionScanner scanner = new LazyContributionScanner(contributionType, scannerDeclaration); - addContributionScanner(scanner); - } - - loaded = true; - } - - /** - * A facade for contribution scanners. - */ - private static class LazyContributionScanner implements ContributionScanner { - - private ServiceDeclaration scannerDeclaration; - private String contributionType; - private ContributionScanner scanner; - - private LazyContributionScanner(String contributionType, ServiceDeclaration scannerDeclaration) { - this.scannerDeclaration = scannerDeclaration; - this.contributionType = contributionType; - } - - public URL getArtifactURL(Contribution contributionSourceURL, String artifact) throws ContributionReadException { - return getScanner().getArtifactURL(contributionSourceURL, artifact); - } - - public List<String> scan(Contribution contributionSourceURL) throws ContributionReadException { - return getScanner().scan(contributionSourceURL); - } - - public String getContributionType() { - return contributionType; - } - - private ContributionScanner getScanner() { - if (scanner == null) { - try { - Class<ContributionScanner> scannerClass = (Class<ContributionScanner>)scannerDeclaration.loadClass(); - Constructor<ContributionScanner> constructor = scannerClass.getConstructor(); - scanner = constructor.newInstance(); - } catch (Exception e) { - throw new IllegalStateException(e); - } - } - return scanner; - } - } -} |