org.apache.hadoop.chukwa.rest.services.SystemMetricsHome.java Source code

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Here is the source code for org.apache.hadoop.chukwa.rest.services.SystemMetricsHome.java

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/*
 * 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.SystemMetrics;
import org.apache.hadoop.chukwa.rest.services.RestHome;

/**
 * Home object for domain model class SystemMetrics.
 * @see org.apahe.hadoop.chukwa.rest.objects.SystemMetrics
 * @author Hibernate Tools
 */
public class SystemMetricsHome extends RestHome {
    private static String table = "[system_metrics]";
    private static final Log log = LogFactory.getLog(SystemMetricsHome.class);

    /*
     * convert from a result set record to an object
     */
    private static SystemMetrics createSystemMetrics(ResultSet rs) {
        SystemMetrics obj = null;
        try {
            obj = new SystemMetrics(rs.getTimestamp("timestamp"), rs.getString("host"),

                    rs.getDouble("load_15"), rs.getDouble("load_5"), rs.getDouble("load_1"),
                    rs.getDouble("task_total"), rs.getDouble("task_running"), rs.getDouble("task_sleep"),
                    rs.getDouble("task_stopped"), rs.getDouble("task_zombie"), rs.getDouble("mem_total"),
                    rs.getDouble("mem_buffers"), rs.getDouble("mem_cached"), rs.getDouble("mem_used"),
                    rs.getDouble("mem_free"), rs.getDouble("eth0_rxerrs"), rs.getDouble("eth0_rxbyts"),
                    rs.getDouble("eth0_rxpcks"), rs.getDouble("eth0_rxdrops"), rs.getDouble("eth0_txerrs"),
                    rs.getDouble("eth0_txbyts"), rs.getDouble("eth0_txpcks"), rs.getDouble("eth0_txdrops"),
                    rs.getDouble("eth1_rxerrs"), rs.getDouble("eth1_rxbyts"), rs.getDouble("eth1_rxpcks"),
                    rs.getDouble("eth1_rxdrops"), rs.getDouble("eth1_txerrs"), rs.getDouble("eth1_txbyts"),
                    rs.getDouble("eth1_txpcks"), rs.getDouble("eth1_txdrops"), rs.getDouble("sda_rkbs"),
                    rs.getDouble("sda_wkbs"), rs.getDouble("sdb_rkbs"), rs.getDouble("sdb_wkbs"),
                    rs.getDouble("sdc_rkbs"), rs.getDouble("sdc_wkbs"), rs.getDouble("sdd_rkbs"),
                    rs.getDouble("sdd_wkbs"), rs.getFloat("cpu_idle_pcnt"), rs.getFloat("cpu_nice_pcnt"),
                    rs.getFloat("cpu_system_pcnt"), rs.getFloat("cpu_user_pcnt"), rs.getFloat("cpu_hirq_pcnt"),
                    rs.getFloat("cpu_sirq_pcnt"), rs.getFloat("iowait_pcnt"), rs.getFloat("mem_buffers_pcnt"),
                    rs.getFloat("mem_used_pcnt"), rs.getFloat("eth0_busy_pcnt"), rs.getFloat("eth1_busy_pcnt"),
                    rs.getFloat("sda_busy_pcnt"), rs.getFloat("sdb_busy_pcnt"), rs.getFloat("sdc_busy_pcnt"),
                    rs.getFloat("sdd_busy_pcnt"), rs.getFloat("swap_used_pcnt"));
        } catch (Exception e) {
        }
        return obj;
    }

    /*
     * find by timestamp
     */
    public static SystemMetrics find(String timestamp) {
        String cluster = getCluster();
        DatabaseWriter dbw = new DatabaseWriter(cluster);

        if (timestamp != null) {
            // get simple value
            try {
                String query = getSingleQuery(SystemMetricsHome.table, "timestamp", timestamp);
                ResultSet rs = dbw.query(query);
                if (rs.next()) {
                    SystemMetrics obj = createSystemMetrics(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 SystemMetrics 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(SystemMetricsHome.table, criteriaMap);
                ResultSet rs = dbw.query(query);
                if (rs.next()) {
                    SystemMetrics obj = createSystemMetrics(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<SystemMetrics> findBetween(String starttime, String endtime) {
        String cluster = getCluster();
        DatabaseWriter dbw = new DatabaseWriter(cluster);

        Collection<SystemMetrics> collection = new Vector<SystemMetrics>();

        try {
            String query = getTimeBetweenQuery(SystemMetricsHome.table, starttime, endtime);
            ResultSet rs = dbw.query(query);
            while (rs.next()) {
                SystemMetrics obj = createSystemMetrics(rs);
                collection.add(obj);
            }
        } catch (Exception e) {
            log.error("exception:" + e.toString());
        }
        return collection;
    }
}