com.effektif.mongo.MongoReaderHelper.java Source code

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Here is the source code for com.effektif.mongo.MongoReaderHelper.java

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/*
 * Copyright 2014 Effektif GmbH.
 *
 * Licensed 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 com.effektif.mongo;

import java.util.Date;
import java.util.List;
import java.util.Map;

import org.joda.time.LocalDateTime;

import com.mongodb.BasicDBObject;

public class MongoReaderHelper {

    @SuppressWarnings("unchecked")
    protected static List<BasicDBObject> getList(BasicDBObject dbScope, String fieldName) {
        return (List<BasicDBObject>) dbScope.get(fieldName);
    }

    @SuppressWarnings("unchecked")
    protected static Map<String, Object> getMap(BasicDBObject dbObject, String fieldName) {
        return (Map<String, Object>) dbObject.get(fieldName);
    }

    protected static String getString(BasicDBObject dbObject, String fieldName) {
        return (String) dbObject.get(fieldName);
    }

    protected static Long getLong(BasicDBObject dbObject, String fieldName) {
        Object object = dbObject.get(fieldName);
        if (object == null) {
            return null;
        }
        if (object instanceof Long) {
            return (Long) object;
        }
        return ((Number) object).longValue();
    }

    protected static Boolean getBoolean(BasicDBObject dbObject, String fieldName) {
        return (Boolean) dbObject.get(fieldName);
    }

    protected static LocalDateTime getTime(BasicDBObject dbObject, String fieldName) {
        Date date = (Date) dbObject.get(fieldName);
        return (date != null ? new LocalDateTime(date) : null);
    }

}