/*
* 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.apache.hadoop.chukwa.rest.services;
import java.util.*;
import java.sql.*;
import javax.naming.InitialContext;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.chukwa.database.DatabaseConfig;
import org.apache.hadoop.chukwa.database.Macro;
import org.apache.hadoop.chukwa.util.DatabaseWriter;
import org.apache.hadoop.chukwa.rest.objects.DfsFsNameSystem;
import org.apache.hadoop.chukwa.rest.services.RestHome;
/**
* Home object for domain model class DfsFsNameSystem.
* @see org.apahe.hadoop.chukwa.rest.objects.DfsFsNameSystem
* @author Hibernate Tools
*/
public class DfsFsNameSystemHome extends RestHome {
private static String table="[dfs_fsnamesystem]";
private static final Log log = LogFactory
.getLog(DfsFsNameSystemHome.class);
/*
* convert from a result set record to an object
*/
private static DfsFsNameSystem createDfsFsNameSystem(ResultSet rs) {
DfsFsNameSystem obj = null;
try {
obj = new DfsFsNameSystem(
rs.getTimestamp("timestamp"),
rs.getString("host"),
rs.getDouble("blocks_total"),
rs.getDouble("capacity_remaining_gb"),
rs.getDouble("capacity_total_gb"),
rs.getDouble("capacity_used_gb"),
rs.getDouble("files_total"),
rs.getDouble("pending_replication_blocks"),
rs.getDouble("scheduled_replication_blocks"),
rs.getDouble("total_load"),
rs.getDouble("under_replicated_blocks")
);
} catch (Exception e) {
}
return obj;
}
/*
* find by timestamp
*/
public static DfsFsNameSystem find(String timestamp) {
String cluster = getCluster();
DatabaseWriter dbw = new DatabaseWriter(cluster);
if (timestamp != null) {
// get simple value
try {
String query = getSingleQuery(DfsFsNameSystemHome.table,"timestamp",timestamp);
ResultSet rs = dbw.query(query);
if (rs.next()) {
DfsFsNameSystem obj = createDfsFsNameSystem(rs);
return obj;
}
} catch (Exception e) {
log.error("exception:"+e.toString());
}
} else {
// check start time and end time
}
return null;
}
/*
* find by key
*/
public static DfsFsNameSystem find(String timestamp, String host) {
String cluster = getCluster();
DatabaseWriter dbw = new DatabaseWriter(cluster);
if (timestamp != null) {
// get simple value
try {
Map<String, String> criteriaMap = new HashMap<String,String>();
criteriaMap.put("timestamp",convertLongToDateString(Long.parseLong(timestamp)));
criteriaMap.put("host",host);
String query = getCriteriaQuery(DfsFsNameSystemHome.table,criteriaMap);
ResultSet rs = dbw.query(query);
if (rs.next()) {
DfsFsNameSystem obj = createDfsFsNameSystem(rs);
return obj;
}
} catch (Exception e) {
log.error("exception:"+e.toString());
}
} else {
// check start time and end time
}
return null;
}
/*
* find within the start time and end time
*/
public static Collection<DfsFsNameSystem> findBetween(String starttime, String endtime) {
String cluster = getCluster();
DatabaseWriter dbw = new DatabaseWriter(cluster);
Collection<DfsFsNameSystem> collection = new Vector<DfsFsNameSystem>();
try {
String query = getTimeBetweenQuery(DfsFsNameSystemHome.table,starttime,endtime);
ResultSet rs = dbw.query(query);
while (rs.next()) {
DfsFsNameSystem obj = createDfsFsNameSystem(rs);
collection.add(obj);
}
} catch (Exception e) {
log.error("exception:"+e.toString());
}
return collection;
}
}