in.mtap.iincube.mongoser.codec.SimpleLineDecoder.java Source code

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Here is the source code for in.mtap.iincube.mongoser.codec.SimpleLineDecoder.java

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/*
 * Copyright 2015 mtap technologies
 *
 * 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 in.mtap.iincube.mongoser.codec;

import com.mongodb.DBObject;
import com.mongodb.util.JSON;
import com.mongodb.util.JSONParseException;
import in.mtap.iincube.mongoser.codec.io.RequestReader;

import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;

public class SimpleLineDecoder implements RequestReader.Decoder {
    private final LinkedList<String> lineEntries = new LinkedList<String>();
    private List<DBObject> dbObjects = new LinkedList<DBObject>();

    /**
     * treats each call value as separate line
     */
    @Override
    public void addData(String data) {
        lineEntries.add(data);
        addIfParseable(data);
    }

    private void addIfParseable(String data) {
        try {
            dbObjects.add((DBObject) JSON.parse(data));
        } catch (JSONParseException e) {
            e.printStackTrace();
        }
    }

    @Override
    public boolean isValid() {
        return dbObjects.size() > 0 && dbObjects.size() == lineEntries.size();
    }

    @Override
    public List<DBObject> getAsDBObject() {
        if (!isValid())
            throw new IllegalArgumentException("Can't decode invalid data \n" + lineEntries.toString());
        return new ArrayList<DBObject>(dbObjects);
    }

    @Override
    public void close() {
        dbObjects.clear();
        lineEntries.clear();
    }
}