Java tutorial
/* * The MIT License * * Copyright (c) 2004-2009, Sun Microsystems, Inc. * * 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 hudson.util.VersionNumber; import net.sf.json.JSONObject; import org.apache.commons.codec.binary.Base64; import org.apache.maven.artifact.resolver.AbstractArtifactResolutionException; import org.sonatype.nexus.index.ArtifactInfo; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.net.MalformedURLException; import java.net.URL; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; import java.util.jar.Attributes; import java.util.jar.JarFile; import java.util.jar.Manifest; import java.util.zip.ZipEntry; /** * Artifact from a Maven repository and its metadata. * * @author Kohsuke Kawaguchi */ public class MavenArtifact { /** * Where did this plugin come from? */ public final MavenRepository repository; public final ArtifactInfo artifact; public final String version; private File hpi; // lazily computed private long timestamp; private Manifest manifest; public MavenArtifact(MavenRepository repository, ArtifactInfo artifact) { this.artifact = artifact; this.repository = repository; version = artifact.version; } public File resolve() throws IOException { try { if (hpi == null) hpi = repository.resolve(artifact); return hpi; } catch (IllegalArgumentException e) { /* Exception in thread "main" java.lang.IllegalArgumentException: Invalid uri 'http://maven.glassfish.org/content/groups/public//${parent/groupId}/startup-trigger-plugin/1.1/startup-trigger-plugin-1.1.hpi': escaped absolute path not valid at org.apache.commons.httpclient.HttpMethodBase.<init>(HttpMethodBase.java:222) at org.apache.commons.httpclient.methods.GetMethod.<init>(GetMethod.java:89) at org.apache.maven.wagon.shared.http.AbstractHttpClientWagon.fillInputData(AbstractHttpClientWagon.java:465) at org.apache.maven.wagon.StreamWagon.getInputStream(StreamWagon.java:116) at org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java:88) at org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61) at org.apache.maven.artifact.manager.DefaultWagonManager.getRemoteFile(DefaultWagonManager.java:597) at org.apache.maven.artifact.manager.DefaultWagonManager.getArtifact(DefaultWagonManager.java:476) at org.apache.maven.artifact.manager.DefaultWagonManager.getArtifact(DefaultWagonManager.java:354) at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:167) at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:82) at org.jvnet.hudson.update_center.MavenRepositoryImpl.resolve(MavenRepositoryImpl.java:161) at org.jvnet.hudson.update_center.MavenRepository.resolve(MavenRepository.java:57) at org.jvnet.hudson.update_center.MavenArtifact.resolve(MavenArtifact.java:70) at org.jvnet.hudson.update_center.MavenArtifact.getManifest(MavenArtifact.java:134) at org.jvnet.hudson.update_center.MavenArtifact.getTimestamp(MavenArtifact.java:128) at org.jvnet.hudson.update_center.Main.checkLatestDate(Main.java:301) at org.jvnet.hudson.update_center.Main.buildPlugins(Main.java:269) */ throw (IOException) new IOException("Failed to resolve artifact " + artifact).initCause(e); } catch (AbstractArtifactResolutionException e) { throw (IOException) new IOException("Failed to resolve artifact " + artifact).initCause(e); } } public File resolvePOM() throws IOException { try { return repository.resolve(artifact, "pom", null); } catch (AbstractArtifactResolutionException e) { throw (IOException) new IOException("Failed to resolve artifact " + artifact).initCause(e); } } public File resolveSources() throws IOException { try { return repository.resolve(artifact, "jar", "sources"); } catch (AbstractArtifactResolutionException e) { throw (IOException) new IOException("Failed to resolve artifact " + artifact).initCause(e); } } /** * Computes the SHA1 signature of the file. */ public String getDigest() throws IOException { try { MessageDigest sig = MessageDigest.getInstance("SHA1"); FileInputStream fin = new FileInputStream(resolve()); byte[] buf = new byte[2048]; int len; while ((len = fin.read(buf, 0, buf.length)) >= 0) sig.update(buf, 0, len); return new String(Base64.encodeBase64(sig.digest())); } catch (NoSuchAlgorithmException e) { throw new IOException(e); } } public JSONObject toJSON(String name) throws IOException { JSONObject o = new JSONObject(); o.put("name", name); o.put("version", version); o.put("url", getURL().toExternalForm()); o.put("buildDate", getTimestampAsString()); o.put("sha1", getDigest()); return o; } public VersionNumber getVersion() { return new VersionNumber(version); } public String getTimestampAsString() throws IOException { long lastModified = getTimestamp(); SimpleDateFormat bdf = getDateFormat(); return bdf.format(lastModified); } public Date getTimestampAsDate() throws IOException { long lastModified = getTimestamp(); SimpleDateFormat bdf = getDateFormat(); Date tsDate; try { tsDate = bdf.parse(bdf.format(new Date(lastModified))); } catch (ParseException pe) { throw new IOException(pe.getMessage()); } return tsDate; } public static SimpleDateFormat getDateFormat() { return new SimpleDateFormat("MMM dd, yyyy", Locale.US); } public long getTimestamp() throws IOException { if (timestamp == 0) getManifest(); return timestamp; } public Manifest getManifest() throws IOException { if (manifest == null) { File f = resolve(); try { JarFile jar = new JarFile(f); ZipEntry e = jar.getEntry("META-INF/MANIFEST.MF"); timestamp = e.getTime(); manifest = jar.getManifest(); jar.close(); } catch (IOException x) { throw (IOException) new IOException("Failed to open " + f).initCause(x); } } return manifest; } public Attributes getManifestAttributes() throws IOException { return getManifest().getMainAttributes(); } /** * Where to download from? */ public URL getURL() throws MalformedURLException { return new URL("repo.jenkins-ci.org/public/" + artifact.groupId.replace('.', '/') + "/" + artifact.artifactId + "/" + artifact.version + "/" + artifact.artifactId + "-" + artifact.version + "." + artifact.packaging); } @Override public String toString() { return artifact.toString(); } public String getGavId() { return artifact.groupId + ':' + artifact.artifactId + ':' + artifact.version; } }