/**
* 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
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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.apache.ambari.view.huetoambarimigration.migration.pig.pigjob;
import java.beans.PropertyVetoException;
import java.io.IOException;
import java.net.URISyntaxException;
import java.sql.Connection;
import java.sql.SQLException;
import java.text.ParseException;
import java.util.ArrayList;
import org.apache.ambari.view.ViewContext;
import org.apache.ambari.view.huetoambarimigration.persistence.utils.ItemNotFound;
import org.apache.ambari.view.huetoambarimigration.resources.PersonalCRUDResourceManager;
import org.apache.ambari.view.huetoambarimigration.resources.scripts.MigrationResourceManager;
import org.apache.ambari.view.huetoambarimigration.resources.scripts.models.MigrationResponse;
import org.apache.ambari.view.huetoambarimigration.resources.scripts.models.PigModel;
import org.apache.log4j.Logger;
import org.apache.ambari.view.huetoambarimigration.datasource.DataSourceAmbariDatabase;
import org.apache.ambari.view.huetoambarimigration.datasource.DataSourceHueDatabase;
import org.apache.ambari.view.huetoambarimigration.datasource.queryset.huequeryset.pig.jobqueryset.*;
import org.apache.ambari.view.huetoambarimigration.datasource.queryset.ambariqueryset.pig.jobqueryset.*;
public class PigJobMigrationUtility {
protected MigrationResourceManager resourceManager = null;
public synchronized PersonalCRUDResourceManager<MigrationResponse> getResourceManager(ViewContext view) {
if (resourceManager == null) {
resourceManager = new MigrationResourceManager(view);
}
return resourceManager;
}
public void pigJobMigration(String username, String instance, String startDate, String endDate, ViewContext view, MigrationResponse migrationresult, String jobid) throws IOException, ItemNotFound {
long startTime = System.currentTimeMillis();
final Logger logger = Logger.getLogger(PigJobMigrationUtility.class);
Connection connectionHuedb = null;
Connection connectionAmbaridb = null;
logger.info("------------------------------");
logger.info("pig Jobs Migration started");
logger.info("------------------------------");
logger.info("start date: " + startDate);
logger.info("enddate date: " + endDate);
logger.info("instance is: " + username);
logger.info("hue username is : " + instance);
PigJobMigrationImplementation pigjobimpl = new PigJobMigrationImplementation();// creating the implementation object
QuerySetHueDb huedatabase = null;
if (view.getProperties().get("huedrivername").contains("mysql")) {
huedatabase = new MysqlQuerySetHueDb();
} else if (view.getProperties().get("huedrivername").contains("postgresql")) {
huedatabase = new PostgressQuerySetHueDb();
} else if (view.getProperties().get("huedrivername").contains("sqlite")) {
huedatabase = new SqliteQuerySetHueDb();
} else if (view.getProperties().get("huedrivername").contains("oracle")) {
huedatabase = new OracleQuerySetHueDb();
}
QuerySetAmbariDB ambaridatabase = null;
if (view.getProperties().get("ambaridrivername").contains("mysql")) {
ambaridatabase = new MysqlQuerySetAmbariDB();
} else if (view.getProperties().get("ambaridrivername").contains("postgresql")) {
ambaridatabase = new PostgressQuerySetAmbariDB();
} else if (view.getProperties().get("ambaridrivername").contains("oracle")) {
ambaridatabase = new OracleQuerySetAmbariDB();
}
int maxCountforPigScript = 0, i = 0;
String time = null, timeIndorder = null;
Long epochtime = null;
String pigJobDirName;
ArrayList<PigModel> pigJobDbPojo = new ArrayList<PigModel>();
try {
String[] usernames = username.split(",");
int totalQueries = 0;
for (int k = 0; k < usernames.length; k++) {
connectionHuedb = DataSourceHueDatabase.getInstance(view.getProperties().get("huedrivername"), view.getProperties().get("huejdbcurl"), view.getProperties().get("huedbusername"), view.getProperties().get("huedbpassword")).getConnection();//connecting to hue database
username = usernames[k];
migrationresult.setProgressPercentage(0);
logger.info("Migration started for user " + username);
pigJobDbPojo = pigjobimpl.fetchFromHueDB(username, startDate, endDate, connectionHuedb, huedatabase);// fetching the PigJobs details from hue
totalQueries += pigJobDbPojo.size();
for (int j = 0; j < pigJobDbPojo.size(); j++) {
logger.info("the query fetched from hue=" + pigJobDbPojo.get(i).getScript());
}
/*No pig Job details has been fetched accordring to search criteria*/
if (pigJobDbPojo.size() == 0) {
logger.info("No queries has been selected for the user " + username + " between dates: " + startDate + " - " + endDate);
} else {
connectionAmbaridb = DataSourceAmbariDatabase.getInstance(view.getProperties().get("ambaridrivername"), view.getProperties().get("ambarijdbcurl"), view.getProperties().get("ambaridbusername"), view.getProperties().get("ambaridbpassword")).getConnection();
connectionAmbaridb.setAutoCommit(false);
int fetchPigTablenameInstance = pigjobimpl.fetchInstanceTablename(connectionAmbaridb, instance, ambaridatabase);
int sequence = pigjobimpl.fetchSequenceno(connectionAmbaridb, fetchPigTablenameInstance, ambaridatabase);
for (i = 0; i < pigJobDbPojo.size(); i++) {
float calc = ((float) (i + 1)) / pigJobDbPojo.size() * 100;
int progressPercentage = Math.round(calc);
migrationresult.setProgressPercentage(progressPercentage);
migrationresult.setNumberOfQueryTransfered(i + 1);
getResourceManager(view).update(migrationresult, jobid);
logger.info("Loop No." + (i + 1));
logger.info("________________");
logger.info("the title of script " + pigJobDbPojo.get(i).getTitle());
maxCountforPigScript = i + sequence + 1;
time = pigjobimpl.getTime();
timeIndorder = pigjobimpl.getTimeInorder();
epochtime = pigjobimpl.getEpochTime();
if (usernames[k].equals("all")) {
username = pigJobDbPojo.get(i).getUserName();
}
pigJobDirName = "/user/" + username + "/pig/jobs/" + pigJobDbPojo.get(i).getTitle() + "_" + time + "/";
pigjobimpl.insertRowPigJob(pigJobDirName, maxCountforPigScript, time, timeIndorder, epochtime, pigJobDbPojo.get(i).getTitle(), connectionAmbaridb, fetchPigTablenameInstance, pigJobDbPojo.get(i).getStatus(), instance, i, ambaridatabase, username);
if (view.getProperties().get("KerberoseEnabled").equals("y")) {
pigjobimpl.createDirPigJobSecured(pigJobDirName, view.getProperties().get("namenode_URI_Ambari"), username, view.getProperties().get("PrincipalUserName"));
pigjobimpl.copyFileBetweenHdfsSecured(pigJobDbPojo.get(i).getDir() + "/script.pig", pigJobDirName, view.getProperties().get("namenode_URI_Ambari"), view.getProperties().get("namenode_URI_Hue"), username, view.getProperties().get("PrincipalUserName"));
pigjobimpl.copyFileBetweenHdfsSecured(pigJobDbPojo.get(i).getDir() + "/stderr", pigJobDirName, view.getProperties().get("namenode_URI_Ambari"), view.getProperties().get("namenode_URI_Hue"), username, view.getProperties().get("PrincipalUserName"));
pigjobimpl.copyFileBetweenHdfsSecured(pigJobDbPojo.get(i).getDir() + "/stdout", pigJobDirName, view.getProperties().get("namenode_URI_Ambari"), view.getProperties().get("namenode_URI_Hue"), username, view.getProperties().get("PrincipalUserName"));
} else {
pigjobimpl.createDirPigJob(pigJobDirName, view.getProperties().get("namenode_URI_Ambari"), username);
pigjobimpl.copyFileBetweenHdfs(pigJobDbPojo.get(i).getDir() + "/script.pig", pigJobDirName, view.getProperties().get("namenode_URI_Ambari"), view.getProperties().get("namenode_URI_Hue"), username);
pigjobimpl.copyFileBetweenHdfs(pigJobDbPojo.get(i).getDir() + "/stderr", pigJobDirName, view.getProperties().get("namenode_URI_Ambari"), view.getProperties().get("namenode_URI_Hue"), username);
pigjobimpl.copyFileBetweenHdfs(pigJobDbPojo.get(i).getDir() + "/stdout", pigJobDirName, view.getProperties().get("namenode_URI_Ambari"), view.getProperties().get("namenode_URI_Hue"), username);
}
logger.info(pigJobDbPojo.get(i).getTitle() + "has been migrated to Ambari");
}
pigjobimpl.updateSequenceno(connectionAmbaridb, maxCountforPigScript, fetchPigTablenameInstance, ambaridatabase);
connectionAmbaridb.commit();
}
logger.info("Migration completed for user " + username);
}
migrationresult.setFlag(1);
if (totalQueries == 0) {
migrationresult.setNumberOfQueryTransfered(0);
migrationresult.setTotalNoQuery(0);
} else {
migrationresult.setNumberOfQueryTransfered(totalQueries);
migrationresult.setTotalNoQuery(totalQueries);
migrationresult.setProgressPercentage(100);
}
getResourceManager(view).update(migrationresult, jobid);
} catch (SQLException e) {
logger.error("sql exception in ambari database:", e);
migrationresult.setError("SQL Exception: " + e.getMessage());
try {
connectionAmbaridb.rollback();
logger.info("roll back done");
} catch (SQLException e1) {
logger.error("roll back exception:", e1);
}
} catch (ClassNotFoundException e2) {
logger.error("class not found exception:", e2);
migrationresult.setError("Class Not Found Exception: " + e2.getMessage());
} catch (ParseException e) {
logger.error("ParseException: ", e);
migrationresult.setError("ParseException: " + e.getMessage());
} catch (URISyntaxException e) {
logger.error("URISyntaxException", e);
migrationresult.setError("URI Syntax Exception: " + e.getMessage());
} catch (PropertyVetoException e) {
logger.error("PropertyVetoException", e);
migrationresult.setError("Property Veto Exception: " + e.getMessage());
} catch (Exception e) {
logger.error("Generic Exception: ", e);
migrationresult.setError("Exception: " + e.getMessage());
} finally {
if (null != connectionAmbaridb)
try {
connectionAmbaridb.close();
} catch (SQLException e) {
logger.error("connection closing exception ", e);
migrationresult.setError("Error closing connection: " + e.getMessage());
}
getResourceManager(view).update(migrationresult, jobid);
}
logger.info("------------------------------");
logger.info("pig Job Migration End");
logger.info("------------------------------");
long stopTime = System.currentTimeMillis();
long elapsedTime = stopTime - startTime;
migrationresult.setJobtype("pigjobmigration");
migrationresult.setTotalTimeTaken(String.valueOf(elapsedTime));
getResourceManager(view).update(migrationresult, jobid);
}
}