Android Open Source - feedhive B G Task Download To File

From Project

Back to project page feedhive.

License

The source code is released under:

SOFTWARE LICENSE ---------------- Copyright (C) 2012, 2013, 2014 Younghyung Cho. <yhcting77@gmail.com> All rights reserved. This file is part of FeedHive This program is licensed under the FreeBSD l...

If you think the Android project feedhive listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

/******************************************************************************
 * Copyright (C) 2012, 2013, 2014/*w  w w  . ja  v a  2s .  c o m*/
 * Younghyung Cho. <yhcting77@gmail.com>
 * All rights reserved.
 *
 * This file is part of FeedHive
 *
 * This program is licensed under the FreeBSD license
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * The views and conclusions contained in the software and documentation
 * are those of the authors and should not be interpreted as representing
 * official policies, either expressed or implied, of the FreeBSD Project.
 *****************************************************************************/

package free.yhc.feeder.model;

import static free.yhc.feeder.model.Utils.eAssert;

import java.io.File;

public class BGTaskDownloadToFile extends BGTask<BGTaskDownloadToFile.Arg, Object> {
    private static final boolean DBG = false;
    private static final Utils.Logger P = new Utils.Logger(BGTaskDownloadToFile.class);

    private volatile NetLoader      mLoader   = null;
    private volatile int            mProgress = 0;

    public static class Arg {
        final String url;
        final File   toFile;
        final File   tempFile;

        public Arg(String aUrl, File aToFile, File aTempFile) {
            eAssert(null != aUrl && null != aToFile && null != aTempFile);
            url = aUrl;
            toFile = aToFile;
            tempFile = aTempFile;
        }
    }

    private boolean
    cleanupStream() {
        return true;
    }

    public
    BGTaskDownloadToFile(Arg arg) {
        super(arg, BGTask.OPT_WAKELOCK | BGTask.OPT_WIFILOCK);
    }

    @Override
    public void
    registerEventListener(Object key, OnEventListener listener, boolean hasPriority) {
        super.registerEventListener(key, listener, hasPriority);
        publishProgress(mProgress);
    }

    @Override
    protected Err
    doBgTask(Arg arg) {
        //logI("* Start background Job : DownloadToFileTask\n" +
        //     "    Url : " + arg.url);
        mLoader = new NetLoader();

        Err result = Err.NO_ERR;
        try {
            mLoader.downloadToFile(arg.url,
                                   arg.tempFile,
                                   arg.toFile,
                                   new NetLoader.OnProgress() {
                @Override
                public void
                onProgress(NetLoader loader, long prog) {
                    mProgress = (int)prog;
                    publishProgress(mProgress);
                }
            });
        } catch (FeederException e) {
            result = e.getError();
        }

        return result;
    }

    @Override
    public boolean
    cancel(Object param) {
        // HACK for fast-interrupt
        // Raise IOException in force
        super.cancel(param);
        if (null != mLoader)
            mLoader.cancel();
        cleanupStream();
        return true;
    }
}

Java Source Code List