Java tutorial
/* * Licensed to Eolya and Dominique Bejean under one * or more contributor license agreements. * Eolya 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 fr.eolya.utils.nosql.mongodb; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.Map.Entry; import com.mongodb.BasicDBObject; import com.mongodb.util.JSON; public class MongoDBHelper { // public static DBObject JSON2DBObject (String json) { // return (DBObject) JSON.parse(json); // } public static BasicDBObject JSON2BasicDBObject(String json) { return (BasicDBObject) JSON.parse(json); } public static Map<String, Object> BasicDBObject2Map(BasicDBObject doc) { Map<String, Object> ret = new HashMap<String, Object>(); Iterator<Entry<String, Object>> it = doc.entrySet().iterator(); while (it.hasNext()) { Map.Entry<String, Object> entry = (Map.Entry<String, Object>) it.next(); Object o = doc.get(entry.getKey()); ret.put(entry.getKey(), o); if (o != null) { if (o instanceof Double) { try { Double d = (Double) o; ret.put(entry.getKey(), new Integer(d.intValue())); } catch (Exception e) { } } } } return ret; } }