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/*
* 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.services.maven;
import java.beans.XMLDecoder;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import org.apache.tuscany.spi.services.artifact.Artifact;
import org.codehaus.plexus.util.IOUtil;
/**
* Helper class for resolving dependencies from WAR files.
*
* @author Administrator
*
*/
public class WarRepositoryHelper {
/** WAR Repository URL */
private URL reporsitoryUrl;
/** Dependency metadata */
private Map<String, Set<String>> transDependencyMap = new HashMap<String, Set<String>>();
/**
* Initializes the repository URL.
* @param baseUrl Base URL.
*/
@SuppressWarnings("unchecked")
public WarRepositoryHelper(URL baseUrl) {
InputStream transDepMapInputStream = null;
try {
reporsitoryUrl = new URL(baseUrl, "repository/");
URL transDependencyMapUrl = new URL(baseUrl, "repository/dependency.metadata");
transDepMapInputStream = transDependencyMapUrl.openStream();
XMLDecoder decoder = new XMLDecoder(transDepMapInputStream);
transDependencyMap = (Map<String, Set<String>>)decoder.readObject();
decoder.close();
} catch (MalformedURLException ex) {
// throw new TuscanyDependencyException(ex);
} catch (IOException ex) {
// throw new TuscanyDependencyException(ex);
} finally {
IOUtil.close(transDepMapInputStream);
}
}
/**
* Resolves the dependencies transitively.
*
* @param artifact
* Artifact whose dependencies need to be resolved.
* @throws TuscanyDependencyException
* If unable to resolve the dependencies.
*/
public boolean resolveTransitively(Artifact rootArtifact) throws TuscanyDependencyException {
String artKey = rootArtifact.getGroup() + "/" + rootArtifact.getName() + "/" + rootArtifact.getVersion() + "/";
if(!transDependencyMap.containsKey(artKey)) {
return false;
}
for(String dep : transDependencyMap.get(artKey)) {
String[] tokens = dep.split("/");
String artName = tokens[1];
try {
if(artName.equals(rootArtifact.getName())) {
rootArtifact.setUrl(new URL(reporsitoryUrl, dep));
} else {
Artifact depArtifact = new Artifact();
depArtifact.setGroup(tokens[0]);
depArtifact.setName(tokens[1]);
depArtifact.setVersion(tokens[2]);
depArtifact.setUrl(new URL(reporsitoryUrl, dep));
rootArtifact.addDependency(depArtifact);
}
} catch (MalformedURLException ex) {
throw new TuscanyDependencyException(ex);
}
}
return rootArtifact.getUrl()!=null;
}
}
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