51 lines
1.4 KiB
Java
51 lines
1.4 KiB
Java
package com.cradle.iitc_mobile.async;
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import android.os.AsyncTask;
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import com.cradle.iitc_mobile.IITC_FileManager;
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import com.cradle.iitc_mobile.Log;
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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.net.URL;
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import java.net.URLConnection;
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public class DownloadTile extends AsyncTask<String, Void, Boolean> {
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private final String mFilePath;
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public DownloadTile(final String path) {
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mFilePath = path;
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}
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@Override
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protected Boolean doInBackground(final String... urls) {
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URL tileUrl = null;
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URLConnection conn = null;
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try {
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tileUrl = new URL(urls[0]);
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conn = tileUrl.openConnection();
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final File file = new File(mFilePath);
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// update tile if needed, else return
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if (conn.getLastModified() < file.lastModified()) return true;
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InputStream is = null;
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is = conn.getInputStream();
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Log.d("writing to file: " + file.toString());
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writeTileToFile(is, file);
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} catch (final IOException e) {
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return false;
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}
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return true;
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}
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private void writeTileToFile(final InputStream inStream, final File file) throws IOException {
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file.getParentFile().mkdirs();
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final FileOutputStream outStream = new FileOutputStream(file);
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IITC_FileManager.copyStream(inStream, outStream, true);
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}
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}
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