97 lines
2.7 KiB
Java
97 lines
2.7 KiB
Java
package max.music_cyclon.service;
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import android.os.Environment;
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import android.util.Log;
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import org.apache.commons.io.FileUtils;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.concurrent.CountDownLatch;
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import java.util.zip.Adler32;
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import max.music_cyclon.SynchronizeConfig;
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import max.music_cyclon.tracker.FileTracker;
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import okhttp3.OkHttpClient;
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import okhttp3.Request;
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import okhttp3.Response;
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public class DownloadTask implements Runnable {
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private final SynchronizeConfig config;
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private final String url;
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private final String itemPath;
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private final FileTracker tracker;
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private final ProgressUpdater progressUpdater;
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private CountDownLatch itemsLeftLatch;
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public static final OkHttpClient CLIENT = new OkHttpClient();
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public DownloadTask(SynchronizeConfig config, String url, String itemPath,
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FileTracker tracker, ProgressUpdater progressUpdater) {
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this.config = config;
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this.url = url;
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this.itemPath = itemPath;
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this.tracker = tracker;
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this.progressUpdater = progressUpdater;
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}
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private InputStream prepareConnection() throws IOException {
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Request request = new Request.Builder()
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.url(url)
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.build();
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Response response = CLIENT.newCall(request).execute();
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if (response.code() != 200) {
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Log.e("ERROR", "Server returned HTTP " + response.message());
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return null;
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}
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return response.body().byteStream();
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}
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public void setItemsLeftLatch(CountDownLatch itemsLeftLatch) {
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this.itemsLeftLatch = itemsLeftLatch;
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}
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@Override
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public void run() {
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File root = new File(Environment.getExternalStorageDirectory(), "library");
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try {
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File target = new File(root, itemPath);
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Adler32 checksum = new Adler32();
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InputStream input = prepareConnection();
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if (input != null) {
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FileOutputStream output = FileUtils.openOutputStream(target);
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byte[] buffer = new byte[4 * 1024];
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int n;
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while (-1 != (n = input.read(buffer))) {
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output.write(buffer, 0, n);
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checksum.update(buffer, 0, n);
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}
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output.flush();
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output.close();
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input.close();
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}
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tracker.track(config, target, checksum.getValue());
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} catch (IOException e) {
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Log.e("DOWNLOAD", "Failed to download", e);
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}
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progressUpdater.increment();
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itemsLeftLatch.countDown();
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}
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}
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