net.haltcondition.anode.HttpWorker.java Source code

Introduction

Here is the source code for net.haltcondition.anode.HttpWorker.java

Source

package net.haltcondition.anode;

import android.content.Context;
import android.os.Handler;
import android.util.Log;
import net.haltcondition.util.Base64;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;

/**
 * Copyright Steve Smith (tarkasteve@gmail.com): 08/05/2010
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 as
 * published by the Free Software Foundation..
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
public class HttpWorker<RType> extends ThreadWorker<RType> {
    private static final String TAG = "HttpWorker";

    private Account account;
    private String url;
    private HttpResultHandler<RType> resultHandler;
    private final Context context;

    public HttpWorker(Handler h, Account acc, String url, HttpResultHandler<RType> resultHandler, Context context) {
        super(h);
        this.account = acc;
        this.url = url;
        this.resultHandler = resultHandler;
        this.context = context;
    }

    public void run() {
        Log.d(TAG, "Running");

        HttpClient client = new WebtoolsHttpClient(context);
        try {
            Log.d(TAG, "performing get " + url);
            sendUpdate("Fetching page ...");

            URI u = new URI(url);
            HttpGet method = new HttpGet(u);

            if (account != null) {
                Log.d(TAG, "Using account " + account.getUsername());
                /*
                 * This sucks, but I've wasted half a day trying to get HttpClient basic auth to work.
                 * Android appears to ship with alpha version of 4.0 that doesn't match the docs.
                 */
                String auth = Base64.encodeBytes((account.getUsername() + ":" + account.getPassword()).getBytes())
                        .toString();
                method.addHeader("Authorization", "Basic " + auth);
            }

            HttpResponse response = client.execute(method);
            if (response == null) {
                Log.e(TAG, "got a null response");
                sendError("Error Retrieving Service Data");

            } else if (response.getStatusLine().getStatusCode() == 200) {
                Log.d(TAG, "Status: " + response.getStatusLine());

                sendUpdate("Parsing XML ...");
                sendResult(resultHandler.parse(response.getEntity().getContent()));

            } else {
                String err = "Failed to get data: " + response.getStatusLine().getStatusCode() + " / "
                        + response.getStatusLine().getReasonPhrase();
                Log.e(TAG, err);
                sendError(err);
            }

        } catch (IOException e) {
            Log.e(TAG, e.getMessage());
            sendError("IO Error Retrieving Data");
        } catch (URISyntaxException e) {
            Log.e(TAG, "Error parsing URL" + e.getMessage());
            sendError("URI Error Retrieving Data");

        } finally {
            client.getConnectionManager().shutdown();
        }

    }

}