HttpRetriever.java

package andbas.Ch11TabHost2;

import java.io.IOException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

import android.util.Log;

public class HttpRetriever {
        private DefaultHttpClient client = new DefaultHttpClient();
     
        public String retrieve(String url) {
            HttpGet getRequest = new HttpGet(url);
            try {
                HttpResponse getResponse = client.execute(getRequest);
                final int statusCode = getResponse.getStatusLine().getStatusCode();
                if (statusCode != HttpStatus.SC_OK) {
                    Log.w(getClass().getSimpleName(), "Error " + statusCode
                            + " for URL " + url);
                    return null;
                }
                HttpEntity getResponseEntity = getResponse.getEntity();
     
                if (getResponseEntity != null) {
                    return EntityUtils.toString(getResponseEntity);
                }
            } catch (IOException e) {
                getRequest.abort();
                Log.w(getClass().getSimpleName(), "Error for URL " + url, e);
            }
            return null;
     
        }
    }