Java tutorial
/******************************************************************************* * Copyright 2013 The Linux Box Corporation. * * This file is part of Enkive CE (Community Edition). * Enkive CE is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * Enkive CE is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public * License along with Enkive CE. If not, see * <http://www.gnu.org/licenses/>. ******************************************************************************/ package com.linuxbox.enkive.statistics.gathering.mongodb; import static com.linuxbox.enkive.statistics.StatsConstants.STAT_AVG_OBJ_SIZE; import static com.linuxbox.enkive.statistics.StatsConstants.STAT_DATA_SIZE; import static com.linuxbox.enkive.statistics.StatsConstants.STAT_FILE_SIZE; import static com.linuxbox.enkive.statistics.StatsConstants.STAT_NUM_COLLECTIONS; import static com.linuxbox.enkive.statistics.StatsConstants.STAT_NUM_EXTENT; import static com.linuxbox.enkive.statistics.StatsConstants.STAT_NUM_INDEX; import static com.linuxbox.enkive.statistics.StatsConstants.STAT_NUM_OBJS; import static com.linuxbox.enkive.statistics.StatsConstants.STAT_TOTAL_INDEX_SIZE; import static com.linuxbox.enkive.statistics.StatsConstants.STAT_TOTAL_SIZE; import static com.linuxbox.enkive.statistics.gathering.mongodb.MongoConstants.MONGO_AVG_OBJ_SIZE; import static com.linuxbox.enkive.statistics.gathering.mongodb.MongoConstants.MONGO_DATA_SIZE; import static com.linuxbox.enkive.statistics.gathering.mongodb.MongoConstants.MONGO_FILE_SIZE; import static com.linuxbox.enkive.statistics.gathering.mongodb.MongoConstants.MONGO_INDEXES; import static com.linuxbox.enkive.statistics.gathering.mongodb.MongoConstants.MONGO_INDEX_SIZE; import static com.linuxbox.enkive.statistics.gathering.mongodb.MongoConstants.MONGO_NUM_COLLECTIONS; import static com.linuxbox.enkive.statistics.gathering.mongodb.MongoConstants.MONGO_NUM_EXTENT; import static com.linuxbox.enkive.statistics.gathering.mongodb.MongoConstants.MONGO_NUM_OBJS; import static com.linuxbox.enkive.statistics.gathering.mongodb.MongoConstants.MONGO_STORAGE_SIZE; import java.util.Date; import java.util.List; import java.util.Map; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import com.linuxbox.enkive.statistics.VarsMaker; import com.linuxbox.enkive.statistics.gathering.AbstractGatherer; import com.linuxbox.enkive.statistics.gathering.GathererException; import com.mongodb.BasicDBObject; import com.mongodb.DB; import com.mongodb.Mongo; public class MongoStatsDatabaseGatherer extends AbstractGatherer { protected final static Log LOGGER = LogFactory.getLog("com.linuxbox.enkive.statistics.gathering"); protected DB db; protected Mongo m; public MongoStatsDatabaseGatherer(Mongo m, String dbName, String gathererName, String humanName, List<String> keys) throws GathererException { super(gathererName, humanName, keys); this.m = m; db = m.getDB(dbName); } @Override protected Map<String, Object> getPointStatistics(Date startTimestamp, Date endTimestamp) throws GathererException { Map<String, Object> pointStats = VarsMaker.createMap(); BasicDBObject temp = db.getStats(); pointStats.put(STAT_NUM_COLLECTIONS, temp.get(MONGO_NUM_COLLECTIONS)); pointStats.put(STAT_NUM_OBJS, temp.get(MONGO_NUM_OBJS)); pointStats.put(STAT_AVG_OBJ_SIZE, temp.get(MONGO_AVG_OBJ_SIZE)); pointStats.put(STAT_DATA_SIZE, temp.get(MONGO_DATA_SIZE)); pointStats.put(STAT_TOTAL_SIZE, temp.get(MONGO_STORAGE_SIZE)); pointStats.put(STAT_NUM_INDEX, temp.get(MONGO_INDEXES)); pointStats.put(STAT_TOTAL_INDEX_SIZE, temp.get(MONGO_INDEX_SIZE)); pointStats.put(STAT_NUM_EXTENT, temp.get(MONGO_NUM_EXTENT)); pointStats.put(STAT_FILE_SIZE, temp.get(MONGO_FILE_SIZE)); return pointStats; } @Override protected Map<String, Object> getIntervalStatistics(Date startTimestamp, Date endTimestamp) throws GathererException { return null; } }