Java tutorial
/* * The MIT License * * Copyright (c) 2013 IKEDA Yasuyuki * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package org.jvnet.hudson.update_center; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.MalformedURLException; import java.net.URL; import java.util.jar.JarFile; import java.util.zip.ZipEntry; import org.apache.commons.io.IOUtils; import org.apache.maven.artifact.resolver.AbstractArtifactResolutionException; import org.sonatype.nexus.index.ArtifactInfo; /** * HPI located in local. */ public class LocalHPI extends HPI { private File jarFile; private URL url; public LocalHPI(MavenRepository repository, PluginHistory history, ArtifactInfo artifact, File jarFile, URL url) throws AbstractArtifactResolutionException { super(repository, history, artifact); this.jarFile = jarFile; this.url = url; } @Override public URL getURL() throws MalformedURLException { return url; } @Override public File resolve() throws IOException { return jarFile; } @Override public File resolvePOM() throws IOException { JarFile jar = null; InputStream in = null; OutputStream out = null; try { jar = new JarFile(jarFile); String pomPath = String.format("META-INF/maven/%s/%s/pom.xml", artifact.groupId, artifact.artifactId); ZipEntry e = jar.getEntry(pomPath); if (e == null) { return null; } File temporaryFile = File.createTempFile(artifact.artifactId, ".xml"); temporaryFile.deleteOnExit(); in = jar.getInputStream(e); out = new FileOutputStream(temporaryFile); IOUtils.copy(in, out); return temporaryFile; } finally { if (out != null) { out.close(); } if (in != null) { in.close(); } if (jar != null) { jar.close(); } } } }