com.nadmm.airports.tfr.TfrImageService.java Source code

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Here is the source code for com.nadmm.airports.tfr.TfrImageService.java

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/*
 * FlightIntel for Pilots
 *
 * Copyright 2012 Nadeem Hasan <nhasan@nadmm.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>. 
 */

package com.nadmm.airports.tfr;

import java.io.File;
import java.net.URI;
import java.net.URISyntaxException;

import org.apache.http.client.utils.URIUtils;

import android.content.Intent;

import com.nadmm.airports.tfr.TfrList.Tfr;
import com.nadmm.airports.utils.UiUtils;

public class TfrImageService extends TfrServiceBase {

    //http://tfr.faa.gov/save_maps/sect_2_8597.gif
    public static final String TFR_HOST = "tfr.faa.gov";
    public static final String TFR_PATH = "/save_maps";

    public static final String ACTION_GET_TFR_IMAGE = "flightintel.tfr.action.GET_TFR_IMAGE";
    public static final String TFR_ENTRY = "TFR_ENTRY";
    public static final String TFR_IMAGE_PATH = "TFR_IMAGE_PATH";

    public TfrImageService() {
        super();
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        String action = intent.getAction();
        if (action.equals(ACTION_GET_TFR_IMAGE)) {
            getTfrImage(intent);
        }
    }

    private void getTfrImage(Intent intent) {
        Tfr tfr = (Tfr) intent.getSerializableExtra(TFR_ENTRY);
        String notamId = tfr.notamId;
        int start = notamId.indexOf(' ');
        if (start > 0) {
            notamId = notamId.substring(start + 1);
        }
        notamId = notamId.replace("/", "_");

        String name = "sect_" + notamId + ".gif";
        File imageFile = getFile(name);

        if (!imageFile.exists()) {
            URI uri;
            try {
                uri = URIUtils.createURI("http", TFR_HOST, 80, TFR_PATH + "/" + name, null, null);
                fetch(uri, imageFile);
            } catch (URISyntaxException e) {
                UiUtils.showToast(this, "TFR: " + e.getMessage());
            }
        }

        Intent result = makeResultIntent(intent.getAction());
        if (imageFile.exists()) {
            result.putExtra(TFR_IMAGE_PATH, imageFile.getAbsolutePath());
        }
        sendResultIntent(result);
    }

}