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package eu.dnetlib.data.mapreduce.hbase.statsExport.daos;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FSDataInputStream;
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import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.fs.Path;
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import org.apache.log4j.Logger;
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import org.junit.Test;
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import org.postgresql.copy.CopyManager;
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import org.postgresql.core.BaseConnection;
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import org.springframework.jdbc.core.JdbcTemplate;
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import org.springframework.jdbc.core.simple.SimpleJdbcCall;
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import org.springframework.jdbc.datasource.DriverManagerDataSource;
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import java.io.FileInputStream;
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import java.io.InputStream;
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import java.sql.*;
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/**
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* @author eri
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* <p/>
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* DB DAO with methods for creating the temporary shadow schema of the
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* statsDB, executing extra inserts, creating views and indexes .
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*/
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public class StatsDAO {
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private org.springframework.jdbc.datasource.DriverManagerDataSource statsDatasource;
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private Logger log = Logger.getLogger(this.getClass());
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private long startTime;
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private long endtime;
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public StatsDAO(String dbUrl, String dbUser, String dbPassword, String dbDriver) {
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statsDatasource = new DriverManagerDataSource(dbUrl, dbUser, dbPassword);
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statsDatasource.setDriverClassName(dbDriver);
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}
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/**
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* Reads create schema script from a file and executes it. Used to create a
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* temporary Shadow schema for data import
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*
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* @throws Exception
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*/
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public void createSchema() throws Exception {
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InputStream in = ClassLoader.getSystemResourceAsStream("eu/dnetlib/data/mapreduce/hbase/statsExport/stats_db_schema.sql");
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byte[] b = new byte[in.available()];
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in.read(b);
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String q = new String(b);
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in.close();
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Connection con = null;
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log.info(" Creating Shadow Schema Database ....");
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try {
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con = statsDatasource.getConnection();
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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} catch (Exception e) {
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log.error("Could not Create Tables in Temporary database :" + e.getMessage());
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throw new Exception("Could not Create Tables in Temporary database :", e);
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} finally {
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con.close();
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}
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log.info("Shadow Schema created.");
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}
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/**
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* Sets the default schema (search path ) for the sqoop user.
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*
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* @param user
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* @throws Exception
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*/
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public void setSearchPathDB(String user) throws Exception {
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String q = "ALTER ROLE " + user + " SET search_path TO shadow,public; ";
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Connection con = null;
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try {
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con = statsDatasource.getConnection();
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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} catch (Exception e) {
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log.error("Could not change default schema for user :" + e.getMessage());
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throw new Exception("Could not change default schema for user ", e);
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} finally {
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con.close();
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}
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log.info(" Default user schema set to shadow");
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}
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/**
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* Keeps a backup of the current public schema and then replaces it with the new Shadow one.
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*
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* @throws Exception
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*/
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public void renameSchema() throws Exception {
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Connection con = statsDatasource.getConnection();
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String q = "DROP SCHEMA IF EXISTS backup CASCADE;" +
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"DROP SCHEMA IF EXISTS public CASCADE;" +
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" ALTER SCHEMA shadow RENAME TO public; ";
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try {
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CallableStatement st = con.prepareCall(q);
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log.info("Renaming Shadow schema to Public,,,");
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st.execute();
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st.close();
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con.close();
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log.info("Renaming done");
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} catch (Exception e) {
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log.error("Could not rename schema " + e.getMessage());
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throw new Exception("Could not rename schema ", e);
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} finally {
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con.close();
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}
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log.info("Schema renamed");
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}
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public void addArrayColumns() throws Exception {
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log.info("Adding new columns ...");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "{call shadow.create_arrays()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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endtime = System.currentTimeMillis();
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log.info("Time to add columns: " + ((endtime - startTime) / 60000) + " minutes ");
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}
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public void cleanTables() throws Exception {
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log.info(" Cleaning Tables...");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "CREATE TABLE \"shadow\".rd_distinct AS SELECT DISTINCT * FROM \"shadow\".result_datasources;";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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q = "TRUNCATE \"shadow\".result_datasources;";
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st = con.prepareCall(q);
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st.execute();
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st.close();
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q = "INSERT INTO \"shadow\".result_datasources SELECT * FROM \"shadow\".rd_distinct;";
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st = con.prepareCall(q);
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st.execute();
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st.close();
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q = "DROP TABLE \"shadow\".rd_distinct;";
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st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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endtime = System.currentTimeMillis();
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log.info("Time to clean tables : " + ((endtime - startTime) / 60000) + " minutes ");
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}
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/**
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* Create charts.
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*
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* @throws Exception
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*/
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public void createCharts() throws Exception {
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log.info(" Creating Chart Tables...");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "{call shadow.create_charts()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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endtime = System.currentTimeMillis();
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log.info("Time to create chart tables: " + ((endtime - startTime) / 60000) + " minutes ");
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}
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/**
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* Create chart indexes.
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*
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* @throws Exception
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*/
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public void createChartIndexes() throws Exception {
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log.info(" Create Chart Indexes...");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "{call shadow.create_chart_indexes()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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endtime = System.currentTimeMillis();
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log.info("Time to create chart indexes : " + ((endtime - startTime) / 60000) + " minutes ");
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}
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/**
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* Builds indexes.
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*
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* @throws Exception
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*/
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public void buildIndexes() throws Exception {
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log.info(" Building Database Indexes...");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "{call shadow.create_indexes()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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endtime = System.currentTimeMillis();
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log.info("Time to build indexes : " + ((endtime - startTime) / 60000) + " minutes ");
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}
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/**
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* Builds views.
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*
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* @throws Exception
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*/
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public void buildViews() throws Exception {
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log.info(" Building Database Views...");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "{call shadow.create_views()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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endtime = System.currentTimeMillis();
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log.info("Time to build Views : " + ((endtime - startTime) / 60000) + " minutes ");
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}
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/**
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* Executes extra inserts ( table updates )
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*
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* @throws Exception
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*/
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public void executeExtraInserts() throws Exception {
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log.info(" Executing Extra Inserts...");
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startTime = System.currentTimeMillis();
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populateDefaults();
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//update_project_results();
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update_project_has_pubs();
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update_project_pubs_count();
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update_project_delated_pubs();
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update_project_daysforlastpub();
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update_project_delayed_pubs();
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cleanUp();
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endtime = System.currentTimeMillis();
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log.info("Total time for Extra Inserts : " + ((endtime - startTime) / 60000) + " minutes ");
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}
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public void populateDefaults() throws Exception {
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startTime = System.currentTimeMillis();
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log.info(" Populating defaults table and Updating Datasources...");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "{call shadow.extra_defaults_datasource()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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//JdbcTemplate jdbcTemplate = new JdbcTemplate(statsDatasource);
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//jdbcTemplate.setResultsMapCaseInsensitive(true);
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//new SimpleJdbcCall(statsDatasource).withProcedureName("extra_defaults_datasource");
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endtime = System.currentTimeMillis();
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log.info("Time for Populating defaults : " + ((endtime - startTime) / 60000) + " minutes ");
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}
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public void update_project_results() throws Exception {
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startTime = System.currentTimeMillis();
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log.info(" Updating Project Results...");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "{call shadow.update_project_results()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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//JdbcTemplate jdbcTemplate = new JdbcTemplate(statsDatasource);
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//jdbcTemplate.setResultsMapCaseInsensitive(true);
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//new SimpleJdbcCall(statsDatasource).withProcedureName("update_project_results");
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log.info("Done.");
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endtime = System.currentTimeMillis();
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log.info("Time for Updating Project Results: " + ((endtime - startTime) / 60000) + " minutes ");
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}
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public void update_project_has_pubs() throws Exception {
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startTime = System.currentTimeMillis();
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log.info(" Updating Project with Publications..");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "{call shadow.project_has_pubs()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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//JdbcTemplate jdbcTemplate = new JdbcTemplate(statsDatasource);
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//jdbcTemplate.setResultsMapCaseInsensitive(true);
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//new SimpleJdbcCall(statsDatasource).withProcedureName("project_has_pubs");
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log.info("Done.");
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endtime = System.currentTimeMillis();
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log.info("Time for Updating Project with Publications : " + ((endtime - startTime) / 60000) + " minutes ");
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}
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public void update_project_pubs_count() throws Exception {
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startTime = System.currentTimeMillis();
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log.info(" Updating Project Publications Count..");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "{call shadow.project_pubs_count()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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//JdbcTemplate jdbcTemplate = new JdbcTemplate(statsDatasource);
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//jdbcTemplate.setResultsMapCaseInsensitive(true);
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//new SimpleJdbcCall(statsDatasource).withProcedureName("project_pubs_count");
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log.info("Done.");
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endtime = System.currentTimeMillis();
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log.info("Time for Updating Project Publications Count : " + ((endtime - startTime) / 60000) + " minutes ");
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}
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public void update_project_delated_pubs() throws Exception {
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startTime = System.currentTimeMillis();
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log.info(" Updating Project Delayed Publications...");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "{call shadow.project_delayedpubs()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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//JdbcTemplate jdbcTemplate = new JdbcTemplate(statsDatasource);
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//jdbcTemplate.setResultsMapCaseInsensitive(true);
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//new SimpleJdbcCall(statsDatasource).withProcedureName("project_delayedpubs");
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log.info("Done.");
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endtime = System.currentTimeMillis();
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log.info("Time for Updating Project Delayed Publications : " + ((endtime - startTime) / 60000) + " minutes ");
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}
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public void update_project_daysforlastpub() throws Exception {
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startTime = System.currentTimeMillis();
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log.info("Updating Project Days For Last Publication...");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "{call shadow.project_daysforlastpub()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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//JdbcTemplate jdbcTemplate = new JdbcTemplate(statsDatasource);
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//jdbcTemplate.setResultsMapCaseInsensitive(true);
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//new SimpleJdbcCall(statsDatasource).withProcedureName("project_daysforlastpub");
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log.info("Done.");
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endtime = System.currentTimeMillis();
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log.info("Time for Updating Project Days For Last Publication : " + ((endtime - startTime) / 60000) + " minutes ");
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}
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public void update_project_delayed_pubs() throws Exception {
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startTime = System.currentTimeMillis();
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log.info(" Updating Project Delayed Publications...");
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Connection con = statsDatasource.getConnection();
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startTime = System.currentTimeMillis();
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String q = "{call shadow.project_delayed()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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//JdbcTemplate jdbcTemplate = new JdbcTemplate(statsDatasource);
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//jdbcTemplate.setResultsMapCaseInsensitive(true);
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//new SimpleJdbcCall(statsDatasource).withProcedureName("project_delayed");
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log.info("Done.");
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endtime = System.currentTimeMillis();
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log.info("Time for Updating Project Delayed Publications : " + ((endtime - startTime) / 60000) + " minutes ");
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}
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public void insertCountries() throws Exception {
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445
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startTime = System.currentTimeMillis();
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log.info("Inserting countries...");
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448
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Connection con = statsDatasource.getConnection();
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449
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startTime = System.currentTimeMillis();
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String q = "{call shadow.insert_countries()}";
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CallableStatement st = con.prepareCall(q);
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st.execute();
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st.close();
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con.close();
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458
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log.info("Done.");
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460
|
endtime = System.currentTimeMillis();
|
461
|
log.info("Time for inserting countries: " + ((endtime - startTime) / 60000) + " minutes ");
|
462
|
}
|
463
|
|
464
|
public void backwardsCompatibility() throws Exception {
|
465
|
|
466
|
startTime = System.currentTimeMillis();
|
467
|
log.info("Ensuring backwards compatibility");
|
468
|
Connection con = statsDatasource.getConnection();
|
469
|
|
470
|
startTime = System.currentTimeMillis();
|
471
|
String q = "{call shadow.backwards_compatibility()}";
|
472
|
|
473
|
CallableStatement st = con.prepareCall(q);
|
474
|
st.execute();
|
475
|
|
476
|
st.close();
|
477
|
con.close();
|
478
|
|
479
|
log.info("Done.");
|
480
|
endtime = System.currentTimeMillis();
|
481
|
log.info("Time for ensuring backwards compatibility: " + ((endtime - startTime) / 60000) + " minutes ");
|
482
|
}
|
483
|
|
484
|
public void copyUsageStats() throws Exception {
|
485
|
startTime = System.currentTimeMillis();
|
486
|
log.info("Copying usage statistics from public schema");
|
487
|
Connection con = statsDatasource.getConnection();
|
488
|
|
489
|
startTime = System.currentTimeMillis();
|
490
|
Statement st = con.createStatement();
|
491
|
st.executeUpdate("create table shadow.piwiklog as (select * from public.piwiklog)");
|
492
|
st.executeUpdate("create table shadow.usage_stats as (select * from public.usage_stats)");
|
493
|
|
494
|
st.close();
|
495
|
con.close();
|
496
|
|
497
|
log.info("Done.");
|
498
|
endtime = System.currentTimeMillis();
|
499
|
log.info("Time for copying usage statistics: " + ((endtime - startTime) / 60000) + " minutes ");
|
500
|
}
|
501
|
|
502
|
public void cleanUp() throws Exception {
|
503
|
|
504
|
startTime = System.currentTimeMillis();
|
505
|
log.info(" Cleaning Up...");
|
506
|
Connection con = statsDatasource.getConnection();
|
507
|
|
508
|
startTime = System.currentTimeMillis();
|
509
|
String q = "{call shadow.cleanTemps()}";
|
510
|
|
511
|
CallableStatement st = con.prepareCall(q);
|
512
|
st.execute();
|
513
|
|
514
|
st.close();
|
515
|
con.close();
|
516
|
|
517
|
//JdbcTemplate jdbcTemplate = new JdbcTemplate(statsDatasource);
|
518
|
//jdbcTemplate.setResultsMapCaseInsensitive(true);
|
519
|
//new SimpleJdbcCall(statsDatasource).withProcedureName("cleanTemps");
|
520
|
log.info("Done.");
|
521
|
endtime = System.currentTimeMillis();
|
522
|
log.info("Time for cleaning Up : " + ((endtime - startTime) / 60000) + " minutes ");
|
523
|
}
|
524
|
|
525
|
|
526
|
/**
|
527
|
* Loads bulk data for Context( and category) tables as generated from the
|
528
|
* IS xml
|
529
|
*
|
530
|
* @throws Exception
|
531
|
*/
|
532
|
|
533
|
public void insertContexts(String fileDir) throws Exception {
|
534
|
|
535
|
try {
|
536
|
if (!fileDir.endsWith("/")) {
|
537
|
fileDir += "/";
|
538
|
}
|
539
|
copy("context", fileDir + "context");
|
540
|
copy("concept", fileDir + "concept");
|
541
|
copy("category", fileDir + "category");
|
542
|
|
543
|
} catch (Exception e) {
|
544
|
log.error("Could not import context in new database :" + e);
|
545
|
throw new Exception("Could not import context in new database :", e);
|
546
|
}
|
547
|
|
548
|
log.info(" Done.");
|
549
|
}
|
550
|
|
551
|
|
552
|
/**
|
553
|
* Calls the COPY command for the given @table and inserts data from a file
|
554
|
*
|
555
|
* @param table
|
556
|
* @throws Exception
|
557
|
*/
|
558
|
|
559
|
public void copy(String table, String file) throws Exception {
|
560
|
CopyManager copyManager;
|
561
|
FileInputStream inputStream = null;
|
562
|
FileSystem fs = FileSystem.get(new Configuration());
|
563
|
Connection con = null;
|
564
|
try {
|
565
|
FSDataInputStream fin = fs.open(new Path(file));
|
566
|
|
567
|
con = statsDatasource.getConnection();
|
568
|
|
569
|
copyManager = new CopyManager((BaseConnection) con);
|
570
|
|
571
|
inputStream = new FileInputStream(file);
|
572
|
|
573
|
copyManager.copyIn("COPY " + table + " FROM STDIN ", fin);
|
574
|
log.debug("Copy done for " + table);
|
575
|
fin.close();
|
576
|
|
577
|
} catch (Exception e) {
|
578
|
log.error("Fail to execute copy command for table " + table + e);
|
579
|
throw new Exception("Fail to execute copy command for table " + table, e);
|
580
|
} finally {
|
581
|
con.close();
|
582
|
inputStream.close();
|
583
|
}
|
584
|
|
585
|
}
|
586
|
|
587
|
|
588
|
public String getResults(ResultSet rs) throws Exception {
|
589
|
String data = new String();
|
590
|
try {
|
591
|
|
592
|
log.info("Generated Report : ");
|
593
|
|
594
|
ResultSetMetaData rsmd = rs.getMetaData();
|
595
|
while (rs.next()) {
|
596
|
for (int i = 1; i < rsmd.getColumnCount() - 1; i++) {
|
597
|
data += rsmd.getColumnName(i) + "," + rs.getInt(i) + "\n";
|
598
|
}
|
599
|
|
600
|
}
|
601
|
log.info(" Generated Data :" + data);
|
602
|
return data;
|
603
|
|
604
|
} catch (Exception e) {
|
605
|
log.error("Could not import context in new database :" + e);
|
606
|
throw new Exception("Could not import context in new database :", e);
|
607
|
} finally {
|
608
|
rs.close();
|
609
|
}
|
610
|
|
611
|
}
|
612
|
|
613
|
public DriverManagerDataSource getStatsDatasource() {
|
614
|
return statsDatasource;
|
615
|
}
|
616
|
|
617
|
public void setStatsDatasource(DriverManagerDataSource statsDatasource) {
|
618
|
this.statsDatasource = statsDatasource;
|
619
|
}
|
620
|
}
|