| /* |
| * 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.netbeans.modules.updatecenters.resources; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Properties; |
| import java.util.StringTokenizer; |
| import java.util.concurrent.atomic.AtomicReference; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| import org.netbeans.spi.autoupdate.AutoupdateClusterCreator; |
| import org.openide.util.Utilities; |
| import org.openide.util.lookup.ServiceProvider; |
| |
| |
| /** Modifies the etc/netbeans.conf if necessary. |
| * |
| * @author Jaroslav Tulach |
| */ |
| @ServiceProvider(service=AutoupdateClusterCreator.class) |
| public final class NetBeansClusterCreator extends AutoupdateClusterCreator { |
| protected @Override File findCluster(String clusterName) { |
| AtomicReference<File> parent = new AtomicReference<File>(); |
| File conf = findConf(parent, new ArrayList<File>()); |
| return conf != null && conf.isFile() && canWrite (conf) ? new File(parent.get(), clusterName) : null; |
| } |
| |
| private static File findConf(AtomicReference<File> parent, List<? super File> clusters) { |
| String nbdirs = System.getProperty("netbeans.dirs"); |
| if (nbdirs != null) { |
| StringTokenizer tok = new StringTokenizer(nbdirs, File.pathSeparator); // NOI18N |
| while (tok.hasMoreElements()) { |
| File cluster = new File(tok.nextToken()); |
| clusters.add(cluster); |
| if (!cluster.exists()) { |
| continue; |
| } |
| |
| |
| |
| if (parent.get() == null) { |
| parent.set(cluster.getParentFile()); |
| } |
| |
| if (!parent.get().equals(cluster.getParentFile())) { |
| // we can handle only case when all clusters are in |
| // the same directory these days |
| return null; |
| } |
| } |
| } |
| |
| return new File(new File(parent.get(), "etc"), "netbeans.clusters"); |
| } |
| |
| protected @Override File[] registerCluster(String clusterName, File cluster) throws IOException { |
| AtomicReference<File> parent = new AtomicReference<File>(); |
| List<File> clusters = new ArrayList<File>(); |
| File conf = findConf(parent, clusters); |
| assert conf != null; |
| clusters.add(cluster); |
| Properties p = new Properties(); |
| InputStream is = new FileInputStream(conf); |
| try{ |
| p.load(is); |
| } finally { |
| is.close(); |
| } |
| if (!p.keySet().contains(clusterName)) { |
| OutputStream os = new FileOutputStream(conf, true); |
| try { |
| os.write('\n'); |
| os.write(clusterName.getBytes()); |
| os.write('\n'); |
| } finally { |
| os.close(); |
| } |
| } |
| return clusters.toArray(new File[0]); |
| } |
| |
| public static boolean canWrite (File f) { |
| // workaround the bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4420020 |
| if (Utilities.isWindows ()) { |
| FileWriter fw = null; |
| try { |
| fw = new FileWriter (f, true); |
| Logger.getLogger(NetBeansClusterCreator.class.getName()).log(Level.FINE, "{0} has write permission", f); |
| } catch (IOException ioe) { |
| // just check of write permission |
| Logger.getLogger (NetBeansClusterCreator.class.getName ()).log (Level.FINE, f + " has no write permission", ioe); |
| return false; |
| } finally { |
| try { |
| if (fw != null) { |
| fw.close (); |
| } |
| } catch (IOException ex) { |
| Logger.getLogger (NetBeansClusterCreator.class.getName ()).log (Level.INFO, ex.getLocalizedMessage (), ex); |
| } |
| } |
| return true; |
| } else { |
| return f.canWrite (); |
| } |
| } |
| |
| } |