BuySongTask.java

package com.ved.musicmapapp.utils;

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.util.Log;

import com.ved.musicmapapp.R;
import com.ved.musicmapapp.Objects.LocalSong;

public class BuySongTask extends AsyncTask<Void, Void, Integer> {
	LocalSong LocalSong;
	private ProgressDialog dialog;
	Activity activity;
	

	public BuySongTask(LocalSong LocalSong, Activity activity) {
		super();
		this.LocalSong = LocalSong;
		this.activity = activity;
	}

	@Override
	protected void onPreExecute() {
		dialog = ProgressDialog.show(activity,null,null);
		dialog.setContentView(R.layout.layout_progressdialog);
		super.onPreExecute();
	}

	@Override
	protected Integer doInBackground(Void... params) {
		try {
			String buyLink = "";
			String artist = LocalSong.getArtist().replaceAll(" ", "%20");
			String title = LocalSong.getTitle().replaceAll(" ", "%20");
			URL url = new URL("http://ws.audioscrobbler.com/2.0/?method=track.getbuylinks&artist=" + artist + "&track=" + title + "&country=united%20kingdom&api_key=fdbae8e7fa1d67ea46a8ab7d4dd26fdb");
			XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
			factory.setNamespaceAware(false);
			XmlPullParser xpp = factory.newPullParser();
			xpp.setInput(url.openConnection().getInputStream(), "UTF_8");
			int eventType = xpp.getEventType();
			while (eventType != XmlPullParser.END_DOCUMENT) {
				if (eventType == XmlPullParser.START_TAG) {
					// Log.e("tag name", "..." + xpp.getName());
					if (xpp.getName().equalsIgnoreCase("buyLink")) {
						if (buyLink.equalsIgnoreCase("")) {
							buyLink = xpp.nextText();
						}
						// Log.e("buylink", "..." + xpp.nextText());
					}
				}
				eventType = xpp.next(); // move to next element
			}
			// Log.e("final by link is", "..." + buyLink);
			dialog.dismiss();
			Intent viewIntent = new Intent("android.intent.action.VIEW",Uri.parse(buyLink));
			activity.startActivity(viewIntent);
		} catch (MalformedURLException e) {
			Log.e("MalformedURLException in buy link","..." + e.getMessage());
			return 0;
		} catch (XmlPullParserException e) {
			Log.e("XmlPullParserException in buy link","..." + e.getMessage());
			return 0;
		} catch (IOException e) {
			Log.e("IOException in buy link", "..." + e.getMessage());
			return 0;
		}
		return 1;
	}

	@Override
	protected void onPostExecute(Integer result) {
		super.onPostExecute(result);
		if (result == 0) {
			//Toast.makeText(BuySongTask.this, "Track not found",Toast.LENGTH_LONG).show();
			
			dialog.dismiss();
		}
	}

}