at.alladin.rmbt.android.util.CheckHistoryTask.java Source code

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/*******************************************************************************
 * Copyright 2013-2014 alladin-IT 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 at.alladin.rmbt.android.util;

import java.util.ArrayList;

import org.json.JSONArray;

import android.os.AsyncTask;
import at.alladin.rmbt.android.main.RMBTMainActivity;

public class CheckHistoryTask extends AsyncTask<Void, Void, JSONArray> {

    private final RMBTMainActivity activity;

    private JSONArray historyList;

    private String uuid;

    private ControlServerConnection serverConn;

    private EndTaskListener endTaskListener;

    private final ArrayList<String> devicesToShow;

    private final ArrayList<String> networksToShow;

    private boolean hasError = false;

    public CheckHistoryTask(final RMBTMainActivity rmbtMainActivity, final ArrayList<String> devicesToShow,
            final ArrayList<String> networksToShow) {
        this.activity = rmbtMainActivity;

        this.devicesToShow = devicesToShow;

        this.networksToShow = networksToShow;
    }

    @Override
    protected JSONArray doInBackground(final Void... params) {
        serverConn = new ControlServerConnection(activity.getApplicationContext());

        uuid = ConfigHelper.getUUID(activity.getApplicationContext());

        if (uuid.length() > 0)
            historyList = serverConn.requestHistory(uuid, devicesToShow, networksToShow,
                    ((RMBTMainActivity) activity).getHistoryResultLimit());

        return historyList;
    }

    @Override
    protected void onCancelled() {
        if (serverConn != null) {
            serverConn.unload();
            serverConn = null;
        }
    }

    @Override
    protected void onPostExecute(final JSONArray historyList) {
        if (serverConn.hasError())
            hasError = true;
        if (endTaskListener != null)
            endTaskListener.taskEnded(historyList);
    }

    public void setEndTaskListener(final EndTaskListener endTaskListener) {
        this.endTaskListener = endTaskListener;
    }

    public boolean hasError() {
        return hasError;
    }
}