/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * 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 android.bordeaux.services;

import android.bordeaux.services.IAggregatorManager;
import android.bordeaux.services.StringString;
import android.content.Context;
import android.os.RemoteException;
import android.util.Log;
import java.util.List;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

/** AggregatorManger for Learning framework.
 */
public class BordeauxAggregatorManager {
    static final String TAG = "BordeauxAggregatorManager";
    static final String AggregatorManager_NOTAVAILABLE = "AggregatorManager not Available";
    private Context mContext;
    private IAggregatorManager mAggregatorManager;

    public boolean retrieveAggregatorManager() {
        if (mAggregatorManager == null)
            mAggregatorManager = BordeauxManagerService.getAggregatorManager(mContext);
        if (mAggregatorManager == null) {
            Log.e(TAG, AggregatorManager_NOTAVAILABLE);
            return false;
        }
        return true;
    }

    public BordeauxAggregatorManager (Context context) {
        mContext = context;
        mAggregatorManager = BordeauxManagerService.getAggregatorManager(mContext);
    }

    public Map<String, String> GetData(final String dataName) {
        if (!retrieveAggregatorManager())
            throw new RuntimeException(AggregatorManager_NOTAVAILABLE);
        try {
            return getMap(mAggregatorManager.getData(dataName));
        } catch (RemoteException e) {
            Log.e(TAG,"Exception in Getting " + dataName);
            throw new RuntimeException(AggregatorManager_NOTAVAILABLE);
        }
    }

    private Map<String, String> getMap(final List<StringString> sample) {
        HashMap<String, String> m = new HashMap<String, String>();
        for (int i =0; i < sample.size(); i++)
            m.put(sample.get(i).key, sample.get(i).value);
        return (Map) m;
    }
}