Java tutorial
/* * MongoWorkBench is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * Free Software Foundation,version 3. * * MongoWorkBench 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * If not, see http://www.gnu.org/licenses/ * * Additional permission under GNU GPL version 3 section 7 * * If you modify this Program, or any covered work, by linking or combining * it with any of the JARS listed in the README.txt (or a modified version of * (that library), containing parts covered by the terms of that JAR, the * licensors of this Program grant you additional permission to convey the * resulting work. * * https://github.com/aw20/MongoWorkBench * Original fork: https://github.com/Kanatoko/MonjaDB * * April 2013 */ package org.aw20.mongoworkbench.command; import java.util.Date; import java.util.Map; import org.aw20.mongoworkbench.Event; import org.aw20.mongoworkbench.EventWorkBenchManager; import org.aw20.mongoworkbench.MongoFactory; import com.mongodb.BasicDBList; import com.mongodb.BasicDBObject; import com.mongodb.DB; import com.mongodb.DBCollection; import com.mongodb.DBObject; import com.mongodb.MongoClient; import com.mongodb.WriteConcern; import com.mongodb.WriteResult; import com.mongodb.util.JSON; public class RemoveMongoCommand extends FindMongoCommand { @Override public void execute() throws Exception { MongoClient mdb = MongoFactory.getInst().getMongo(sName); if (mdb == null) throw new Exception("no server selected"); if (sDb == null) throw new Exception("no database selected"); MongoFactory.getInst().setActiveDB(sDb); DB db = mdb.getDB(sDb); BasicDBObject cmdMap = parseMongoCommandString(db, cmd); if (!cmdMap.containsField("removeArgs")) throw new Exception("no remove document"); DBCollection collection = db.getCollection(sColl); BasicDBList args = (BasicDBList) cmdMap.get("removeArgs"); // Run the command db.requestStart(); WriteResult writeresult; try { writeresult = collection.remove((DBObject) args.get(0), WriteConcern.JOURNAL_SAFE); } finally { db.requestDone(); } // Get the result Map mwriteresult = (Map) JSON.parse(writeresult.toString()); mwriteresult.put("exeDate", new Date()); EventWorkBenchManager.getInst().onEvent(Event.WRITERESULT, mwriteresult); setMessage("Removed"); } @Override public void parseCommandStr() throws Exception { sColl = getCollNameFromAction(cmd, "remove"); if (sColl == null || sColl.length() == 0) throw new Exception("failed to determine collection from command"); } }