com.grinnellplans.plandroid.PlanFetchTask.java Source code

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Here is the source code for com.grinnellplans.plandroid.PlanFetchTask.java

Source

/*
 *  Copyright (c) 2011 The GrinnellPlans Developers
 *  <grinnellplans-development@groups.google.com>
 *  Released under the GPLv3 license. All rights reserved.
 *  
 *  Filename: PlanFetchTask.java
 *  Author: Saul St. John
 */

package com.grinnellplans.plandroid;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HttpContext;

import android.net.http.AndroidHttpClient;
import android.os.AsyncTask;
import android.util.Log;

public class PlanFetchTask extends AsyncTask<String, Void, String> {
    private HttpContext _httpContext;
    private SessionService _ss;
    private SessionService.PlanFetchedCallback _callback;

    public PlanFetchTask(HttpContext clientContext, SessionService sessionService,
            SessionService.PlanFetchedCallback callback) {
        _httpContext = clientContext;
        _ss = sessionService;
        _callback = callback;
    }

    protected String doInBackground(String... params) {
        Log.i("PlanFetchTask::doInBackground", "Started");
        AndroidHttpClient plansClient = AndroidHttpClient.newInstance("plandroid");

        final HttpPost req = new HttpPost("http://" + _ss.get_serverName() + "/api/1/index.php?task=read");
        List<NameValuePair> postParams = new ArrayList<NameValuePair>(1);
        postParams.add(new BasicNameValuePair("username", params[0]));
        postParams.add(new BasicNameValuePair("readlinkreplacement", "/plan/{username}"));
        Log.i("PlanFetchTask::doInBackground", "setting postParams");
        try {
            req.setEntity(new UrlEncodedFormEntity(postParams));
        } catch (UnsupportedEncodingException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
        HttpResponse response = null;
        try {
            Log.i("PlanFetchTask::doInBackground", "executing request");
            response = plansClient.execute(req, _httpContext);
        } catch (IOException e) {
            e.printStackTrace();
        }
        String resp = null;
        try {
            Log.i("PlanFetchTask::doInBackground", "reading response");
            resp = new BufferedReader((new InputStreamReader(response.getEntity().getContent()))).readLine();
        } catch (IllegalStateException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        plansClient.close();
        Log.i("PlanFetchTask::doInBackground", "server responded \"" + resp + "\"");
        return resp;
    }

    protected void onPostExecute(String resp) {
        _ss.FetchResult(resp, _callback);
    }
}