001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.geronimo.console.databasemanager.wizard; 018 019 import java.io.BufferedOutputStream; 020 import java.io.File; 021 import java.io.FileOutputStream; 022 import java.io.IOException; 023 import java.io.InputStream; 024 import java.io.OutputStream; 025 import java.io.Serializable; 026 import java.net.MalformedURLException; 027 import java.net.URL; 028 import java.net.URLConnection; 029 import java.util.ArrayList; 030 import java.util.Collections; 031 import java.util.HashSet; 032 import java.util.Iterator; 033 import java.util.List; 034 import java.util.Properties; 035 import java.util.Random; 036 import java.util.Set; 037 import java.util.jar.JarEntry; 038 import java.util.jar.JarFile; 039 import org.apache.commons.logging.Log; 040 import org.apache.commons.logging.LogFactory; 041 import org.apache.geronimo.kernel.repository.Artifact; 042 import org.apache.geronimo.kernel.repository.FileWriteMonitor; 043 import org.apache.geronimo.kernel.repository.WriteableRepository; 044 045 /** 046 * A utility that handles listing and downloading available JDBC driver JARs. 047 * It can handle straight JARs and also JARs in ZIP files. 048 * 049 * @version $Rev: 476061 $ $Date: 2006-11-17 01:36:50 -0500 (Fri, 17 Nov 2006) $ 050 */ 051 public class DriverDownloader { 052 private final static Log log = LogFactory.getLog(DriverDownloader.class); 053 Random random; 054 055 public Properties readDriverFile(URL url) { 056 try { 057 InputStream in = url.openStream(); 058 Properties props = new Properties(); 059 props.load(in); 060 in.close(); 061 return props; 062 } catch (IOException e) { 063 log.error("Unable to download driver properties", e); 064 return null; 065 } 066 } 067 068 public DriverInfo[] loadDriverInfo(URL driverInfoFile) { 069 List list = new ArrayList(); 070 Properties props = readDriverFile(driverInfoFile); 071 if(props == null) { 072 return new DriverInfo[0]; 073 } 074 Set drivers = new HashSet(); 075 for (Iterator it = props.keySet().iterator(); it.hasNext();) { 076 String key = (String) it.next(); 077 if(!key.startsWith("driver.")) { 078 continue; 079 } 080 int pos = key.indexOf('.', 7); 081 if(pos > -1) { 082 drivers.add(key.substring(7, pos)); 083 } 084 } 085 List urls = new ArrayList(); 086 for (Iterator it = drivers.iterator(); it.hasNext();) { 087 String driver = (String) it.next(); 088 String name = props.getProperty("driver."+driver+".name"); 089 String repository = props.getProperty("driver."+driver+".repository"); 090 String unzip = props.getProperty("driver."+driver+".unzip"); 091 urls.clear(); 092 int index = 1; 093 while(true) { 094 String url = props.getProperty("driver."+driver+".url."+index); 095 if(url != null) { 096 ++index; 097 try { 098 urls.add(new URL(url)); 099 } catch (MalformedURLException e) { 100 log.error("Unable to process URL from driver list", e); 101 } 102 } else { 103 break; 104 } 105 } 106 if(name != null && repository != null && urls.size() > 0) { 107 DriverInfo info = new DriverInfo(name, repository); 108 info.setUnzipPath(unzip); 109 info.setUrls((URL[]) urls.toArray(new URL[urls.size()])); 110 list.add(info); 111 } 112 } 113 Collections.sort(list); 114 return (DriverInfo[]) list.toArray(new DriverInfo[list.size()]); 115 } 116 117 /** 118 * Downloads a driver and loads it into the local repository. 119 */ 120 public void loadDriver(WriteableRepository repo, DriverInfo driver, FileWriteMonitor monitor) throws IOException { 121 int urlIndex = 0; 122 if (driver.urls.length > 1) { 123 if (random == null) { 124 random = new Random(); 125 } 126 urlIndex = random.nextInt(driver.urls.length); 127 } 128 URL url = driver.urls[urlIndex]; 129 InputStream in; 130 String uri = driver.getRepositoryURI(); 131 if (driver.unzipPath != null) { 132 byte[] buf = new byte[1024]; 133 int size; 134 int total = 0; 135 int threshold = 10240; 136 URLConnection uc = url.openConnection(); 137 int filesize = uc.getContentLength(); 138 InputStream net = uc.getInputStream(); 139 JarFile jar = null; 140 File download = null; 141 try { 142 download = File.createTempFile("geronimo-driver-download", ".zip"); 143 OutputStream out = new BufferedOutputStream(new FileOutputStream(download)); 144 if (monitor != null) { 145 monitor.writeStarted("Download driver archive to " + download, filesize); 146 } 147 try { 148 while ((size = net.read(buf)) > -1) { 149 out.write(buf, 0, size); 150 if (monitor != null) { 151 total += size; 152 if (total > threshold) { 153 monitor.writeProgress(total); 154 threshold += 10240; 155 } 156 } 157 } 158 out.flush(); 159 out.close(); 160 } finally { 161 if (monitor != null) { 162 monitor.writeComplete(total); 163 } 164 } 165 jar = new JarFile(download); 166 JarEntry entry = jar.getJarEntry(driver.unzipPath); 167 if (entry == null) { 168 log.error("Cannot extract driver JAR " + driver.unzipPath + " from download file " + url); 169 } else { 170 in = jar.getInputStream(entry); 171 repo.copyToRepository(in, (int)entry.getSize(), Artifact.create(uri), monitor); 172 } 173 } finally { 174 if (jar != null) try { 175 jar.close(); 176 } catch (IOException e) { 177 log.error("Unable to close JAR file", e); 178 } 179 if (download != null) { 180 download.delete(); 181 } 182 } 183 } else { 184 URLConnection con = url.openConnection(); 185 in = con.getInputStream(); 186 repo.copyToRepository(in, con.getContentLength(), Artifact.create(uri), monitor); 187 } 188 } 189 190 public static class DriverInfo implements Comparable, Serializable { 191 private final static long serialVersionUID = -1202452382992975449L; 192 193 private String name; 194 private String repositoryURI; 195 private String unzipPath; 196 private URL[] urls; 197 198 public DriverInfo(String name, String repositoryURI) { 199 this.name = name; 200 this.repositoryURI = repositoryURI; 201 } 202 203 public String getName() { 204 return name; 205 } 206 207 public void setName(String name) { 208 this.name = name; 209 } 210 211 public String getRepositoryURI() { 212 return repositoryURI; 213 } 214 215 public void setRepositoryURI(String repositoryURI) { 216 this.repositoryURI = repositoryURI; 217 } 218 219 public String getUnzipPath() { 220 return unzipPath; 221 } 222 223 public void setUnzipPath(String unzipPath) { 224 this.unzipPath = unzipPath; 225 } 226 227 public URL[] getUrls() { 228 return urls; 229 } 230 231 public void setUrls(URL[] urls) { 232 this.urls = urls; 233 } 234 235 public int compareTo(Object o) { 236 return name.compareTo(((DriverInfo)o).name); 237 } 238 } 239 }