Service

package com.example.myfirstapp.service;

import org.apache.http.client.HttpClient;
import com.example.myfirstapp.io.PersonHandler;
import com.example.myfirstapp.io.RemoteExecutor;
import com.example.myfirstapp.utils.Utils;
import android.app.IntentService;
import android.content.ContentResolver;
import android.content.Intent;
import android.os.Bundle;
import android.os.ResultReceiver;
import android.util.Log;

public class PersonService extends IntentService {

    private static final String TAG = "PersonsService";

    public static final String EXTRA_STATUS = "com.example.myfirstapp.extra.STATUS";
    public static final String EXTRA_REST_OPERATION = "com.example.myfirstapp.extra.REST_OPERATION";
    public static final String GENERAL_REST_OPERATION = "com.example.myfirstapp.general.REST_OPERATION";

    public static final int STATUS_RUNNING = 0x1;
    public static final int STATUS_ERROR = 0x2;
    public static final int STATUS_FINISHED = 0x3;

    private HttpClient mHttpClient;
    private ContentResolver mResolver;
    private RemoteExecutor mExecutor;

    @Override
    public void onCreate () {
        super.onCreate ();
        this.mHttpClient = Utils.getHttpClient ( this );
        this.mResolver = getContentResolver ();
        this.mExecutor = new RemoteExecutor ( this.mHttpClient, this.mResolver );
    }

    public PersonService () {
        super ( TAG );
    }

    @Override
    protected void onHandleIntent ( Intent intent ) {
        Log.d ( TAG, "onHandleIntent()" );
        final String restOperation = intent.getStringExtra ( EXTRA_REST_OPERATION );
        if ( GENERAL_REST_OPERATION.equals ( restOperation ) )
            getPersons ( intent );
    }

    private void getPersons ( Intent intent ) {
        final ResultReceiver receiver = intent.getParcelableExtra ( EXTRA_STATUS );
        if ( receiver != null )
            receiver.send ( STATUS_RUNNING, Bundle.EMPTY );

        try {
            mExecutor.executeGet ( Utils.buildProxyPersonsUri (), new PersonHandler () );
        } catch ( Exception e ) {
            if ( receiver != null ) {
                final Bundle bundle = new Bundle ();
                bundle.putString ( Intent.EXTRA_TEXT, e.toString () );
                receiver.send ( STATUS_ERROR, bundle );
            }
        }

        if ( receiver != null )
            receiver.send ( STATUS_FINISHED, Bundle.EMPTY );
    }
}