Java tutorial
/* * Copyright 2009-2015 European Molecular Biology Laboratory * * Licensed 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 uk.ac.ebi.fg.biostudies.jobs; import org.apache.commons.io.FileUtils; import org.basex.core.cmd.CreateDB; import org.basex.server.ClientSession; import org.basex.server.Session; import org.quartz.JobExecutionContext; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import uk.ac.ebi.fg.biostudies.app.Application; import uk.ac.ebi.fg.biostudies.app.ApplicationJob; import uk.ac.ebi.fg.biostudies.components.BioStudies; import uk.ac.ebi.fg.biostudies.components.SearchEngine; import uk.ac.ebi.fg.biostudies.utils.saxon.search.IndexEnvironmentBioStudies; import uk.ac.ebi.fg.biostudies.utils.saxon.search.Indexer; import java.io.File; import java.io.IOException; import java.net.InetAddress; import java.net.UnknownHostException; public class ReloadBiosamplesJob extends ApplicationJob { // logging machinery private final Logger logger = LoggerFactory.getLogger(getClass()); public void doExecute(JobExecutionContext jec) throws Exception { logger.info("Reloading all Biosamples data into the Application Server"); File setupDirectory = null; File backDir = null; //File globalSetupDBDirectory = null; File setupTempDirectory = null; String hostname = "NA"; try { hostname = InetAddress.getLocalHost().getHostName(); } catch (UnknownHostException e) { logger.error("Host not available-> " + e.getMessage()); } try { // Thread.currentThread().sleep(30000);//sleep for 1000 ms boolean updateActive = Application.getInstance().getPreferences().getBoolean("bs.xmlupdate.active"); logger.info("Is Reloading Active?->" + updateActive); if (!updateActive) { logger.error("ReloadBiosamplesJob is trying to execute and the configuration does not allow that"); this.getApplication().sendEmail(null, null, hostname + "->" + "BIOSAMPLES: WARNING", "ReloadBiosamplesJob is trying to execute and the configuration does not allow that!"); // throw new // Exception("ReloadBiosamplesJob is trying to execute and the configuration does not allow that!"); return; } // I will create a backup directory, where I will backup the Actual // Setup directory, where I will put the new biosamples.xml and // where I will creste a new SetupDirectory based on the new // biosamples.xml String setupDir = Application.getInstance().getPreferences().getString("bs.setupDirectory"); logger.info("setupDir->" + setupDir); setupDirectory = new File(setupDir); String backupDirectory = Application.getInstance().getPreferences().getString("bs.backupDirectory"); logger.info("backupDirectory->" + backupDirectory); String globalSetupDir = Application.getInstance().getPreferences().getString("bs.globalSetupDirectory"); logger.info("globalSetupDirectory->" + globalSetupDir); File globalSetupDirectory = new File(globalSetupDir); String globalSetupDBDir = Application.getInstance().getPreferences() .getString("bs.globalSetupDBDirectory"); logger.info("globalSetupDBDirectory->" + globalSetupDBDir); String globalSetupLuceneDir = Application.getInstance().getPreferences() .getString("bs.globalSetupLuceneDirectory"); logger.info("globalSetupLuceneDir->" + globalSetupLuceneDir); //globalSetupDBDirectory=new File(globalSetupDBDir); String dbname = Application.getInstance().getPreferences().getString("bs.xmldatabase.dbname"); String dbPathDirectory = Application.getInstance().getPreferences().getString("bs.xmldatabase.path"); File dbDirectory = new File(dbPathDirectory + File.separator + dbname); logger.debug("dbPathDirectory->" + dbDirectory); // this variable will be used in the creation of the bakup // directory anda in the creation od the database backup Long tempDir = System.nanoTime(); String newDir = "backup_" + tempDir; backDir = new File(backupDirectory + File.separator + newDir); if (backDir.mkdir()) { logger.info("Backup directory was created in [{}]", backDir.getAbsolutePath()); } else { // TODO: rpe stop the process logger.error("Backup directory was NOT created in [{}]", backDir.getAbsolutePath()); throw new Exception( hostname + "->" + "Backup directory was NOT created in " + backDir.getAbsolutePath()); } // DownloadBiosamplesXmlFileFromAGE dxml = new // DownloadBiosamplesXmlFileFromAGE(); // I need to know which type of biosample updting process am I using String typeBioSampleUpdate = Application.getInstance().getPreferences().getString("bs.xmlupdate.type"); logger.debug("Type of Biosamples updating process->" + typeBioSampleUpdate); IDownloadBiosamplesXmlFile dxml = DownloadBiosamplesXmlFileFactory .createDownloadBiosamplesXmlFile(typeBioSampleUpdate); File xmlDir = new File(backDir.getAbsolutePath() + "/XmlDownload"); if (xmlDir.mkdir()) { logger.info("XmlDownload directory was created in [{}]", xmlDir.getAbsolutePath()); } else { logger.error("XmlDownload directory was NOT created in [{}]", xmlDir.getAbsolutePath()); throw new Exception( hostname + "->" + "XmlDownload directory was NOT created in " + xmlDir.getAbsolutePath()); } String downloadDirectory = xmlDir.getAbsolutePath(); boolean downloadOk = dxml.downloadXml(downloadDirectory); if (downloadOk) { File oldSetupDir = new File(backDir.getAbsolutePath() + "/OldSetup"); if (oldSetupDir.mkdir()) { logger.info("OldSetup Backup directory was created in [{}]", oldSetupDir.getAbsolutePath()); copyDirectory(setupDirectory, oldSetupDir); } else { logger.error("OldSetup Backup directory was NOT created in [{}]", oldSetupDir.getAbsolutePath()); throw new Exception(hostname + "->" + "oldSetupDir Backup directory was NOT created in " + oldSetupDir.getAbsolutePath()); } // update of the xmlDatabase logger.info("DatabaseXml Creation"); // File newSetupDir= new File(backDir.getAbsolutePath() + // "/newSetup" ); // I need to change this because it's not possible to move // directories from a local disk (/tomcat/temp to NFS). So my // all temporary Setup will be created in the same place where // is th Setup Directory) // getParentFile() to create at the same level of Setup // directory File newSetupDir = new File(setupDirectory.getParentFile().getAbsolutePath() + "/newSetup"); if (newSetupDir.exists()) { // I will force the delete of the NewSetupDir (I need this // because if for any reason the process fails once (before // it renames nesSetup to Setup), the next time the process // will always fail because the newSetup already exists FileUtils.forceDelete(newSetupDir); } if (newSetupDir.mkdir()) { logger.info("newSetupDir directory was created in [{}]", newSetupDir.getAbsolutePath()); } else { logger.error("newSetupDir directory was NOT created in [{}]", newSetupDir.getAbsolutePath()); throw new Exception(hostname + "->" + "newSetupDir directory was NOT created in " + newSetupDir.getAbsolutePath()); } // update in a temporary database // index it in the newSetupDir updateXMLDatabase(xmlDir, newSetupDir, tempDir); logger.info("End of DatabaseXml Creation"); // only after update the database I update the Lucenes Indexes logger.info("Deleting Setup Directory and renaming - from now on the application is not answering"); SearchEngine search = ((SearchEngine) getComponent("SearchEngine")); // I need to close the IndexReader otherwise it would not be // possible dor me to delete the Setup directory (this problem // only occurs on NFS); search.getController().getEnvironment("biostudies").closeIndexReader(); // remove the old setupdirectory /tmp/Setup is deleted deleteDirectory(setupDirectory); // Rename file (or directory) /tmp/newSetup-> /tmp/Setup logger.info("Before file renamed!!!"); boolean success2 = newSetupDir.renameTo(setupDirectory); File globalSetupLuceneDirectory = new File(globalSetupDir + File.separator + globalSetupLuceneDir); if (success2) { logger.info("newSetupDir was successfully renamed to [{}]!!!", setupDirectory.getAbsolutePath()); // need to remove the globalSetupDirectory e copy the new // one to there if (globalSetupLuceneDirectory.exists()) { FileUtils.forceDelete(globalSetupLuceneDirectory); } else { logger.info("globalSetupLuceneDirectory doesnt exist!! [{}]!!!", globalSetupLuceneDirectory.getAbsolutePath()); } } else { logger.error("newSetupDir was not successfully renamed to [{}]!!!", setupDirectory.getAbsolutePath()); throw new Exception(hostname + "->" + "newSetupDir was not successfully renamed to ->" + setupDirectory.getAbsolutePath()); } logger.info("Deleting Setup Directory and renaming - End"); // I do this to know the number of elements ((BioStudies) getComponent("BioStudies")).reloadIndex(); // TODO: rpe nowaday I need to do this to clean the xmldatabase // connection nad to reload the new index ((IndexEnvironmentBioStudies) search.getController().getEnvironment("biostudies")).setup(); //Copy the data to GlobalSETUP (doing this here to reduce the downtime FileUtils.copyDirectory(setupDirectory, globalSetupLuceneDirectory); logger.info("XML DB was copied to globalSetupLuceneDirectory !! [{}]!!!", globalSetupLuceneDirectory.getAbsolutePath()); //I will also copy there the XML DB File newSetupDBDir = new File( dbDirectory.getParentFile().getAbsolutePath() + File.separator + dbname); File globalSetupDBDirectory = new File(globalSetupDir + File.separator + globalSetupDBDir); if (globalSetupDBDirectory.exists()) { FileUtils.forceDelete(globalSetupDBDirectory); } else { logger.info("globalSetupDBDirectory doesnt exist!! [{}]!!!", globalSetupDBDirectory.getAbsolutePath()); throw new Exception(hostname + "->" + "globalSetupDBDirectory doesnt exist!! ->" + globalSetupDBDirectory.getAbsolutePath()); } if (newSetupDBDir.exists()) { FileUtils.copyDirectory(newSetupDBDir, globalSetupDBDirectory); logger.info("XML DB was copied to globalSetupDBDirectory !! [{}]!!!", globalSetupDBDirectory.getAbsolutePath()); } else { logger.error("New Xml DB doesnt exist!! [{}]!!!", newSetupDBDir.getAbsolutePath()); throw new Exception( hostname + "->" + "New Xml DB doesnt exist!!->" + newSetupDBDir.getAbsolutePath()); } //send an email saying that everything is ok (with some stats) this.getApplication().sendEmail(null, null, hostname + "->" + "BIOSTUDIES: RELOAD biostudies-> + " + ((IndexEnvironmentBioStudies) search.getController().getEnvironment("biostudies")) .getCountDocuments(), "ReloadBiosamplesJob is finished!"); } else { logger.debug("Something went wrong on Xml download"); throw new Exception(hostname + "->" + " Something went wrong on Xml download"); } } catch (Exception e) { throw new RuntimeException(e); } finally { } logger.info("End of Reloading all Biosamples data into the Application Server"); // I want to start using the new version of the data // (/Users/rpslpereira/Apps/apache-tomcat-6.0.33/temp/StagingArea/4) } public void updateXMLDatabase(File xmlDirectory, File newSetupDirectory, long tempDir) throws Exception { // Create a client session with host name, port, user name and password logger.info("* Create a client session int the Xml Database."); String dbHost = Application.getInstance().getPreferences().getString("bs.xmldatabase.host"); int dbPort = Integer.parseInt(Application.getInstance().getPreferences().getString("bs.xmldatabase.port")); String dbPassword = Application.getInstance().getPreferences().getString("bs.xmldatabase.adminpassword"); String originalDbName = Application.getInstance().getPreferences().getString("bs.xmldatabase.dbname"); Session session = new ClientSession(dbHost, dbPort, "admin", dbPassword); // ------------------------------------------------------------------------ // Create a database logger.info("* Create a database."); String tempDbName = originalDbName + "_" + tempDir; String logs = session.execute(new CreateDB(tempDbName, xmlDirectory.getAbsolutePath())); // .getAbsolutePath() + "/XmlFiles")); logger.info("CreateDB('" + tempDbName + "' ...->" + logs); logs = session.execute("CLOSE"); logger.debug("CLOSE ...->" + logs); logger.info("Start Indexing ..."); // I will create now the Lucene Indexes ... SearchEngine search = ((SearchEngine) getComponent("SearchEngine")); // TODO: rpe change all this static values search.getController().indexFromXmlDB("biostudies", Indexer.RebuildCategories.REBUILD, newSetupDirectory.getAbsolutePath() + "/LuceneIndexes", dbHost, dbPort, dbPassword, tempDbName); logger.info("End Indexing ..."); // // index logger.info("DatabaseXml Rename - From now on the database is not answering anymore!"); logs = session.execute("ALTER DATABASE " + originalDbName + " " + tempDbName + "_backup"); logger.info("ALTER DATABASE " + originalDbName + " " + tempDbName + "_backup" + "->" + logs); logs = session.execute("ALTER DATABASE " + tempDbName + " " + originalDbName); logger.info("DatabaseXml Rename - End!"); logger.info("* Close the client session."); session.close(); // I neeed to reinitialize the XmldbConnectionPool otherwise I wiil be // looking to old data! search.getComponent("XmlDbConnectionPool").terminate(); search.getComponent("XmlDbConnectionPool").initialize(); } void deleteDirectory(File f) throws IOException { FileUtils.deleteDirectory(f); } public void copyDirectory(File sourceLocation, File targetLocation) throws IOException { FileUtils.copyDirectory(sourceLocation, targetLocation); } }