Android Open Source - sharemore Page Title Getter

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License

The source code is released under:

GNU General Public License

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Java Source Code

/*******************************************************************************
 * Copyright (c) 2012 Moarub Oy.//  w  w  w .  j  a  v a2s .  c o  m
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     Moarub Oy - initial API and implementation
 ******************************************************************************/
package com.moarub.util;

import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.params.HttpClientParams;

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

public class PageTitleGetter extends AsyncTask<String, Void, StringBuilder> {
  private UrlDeshortenerListener fListener;
  private String fURLTo;
  private String fBackupTitle;

  public PageTitleGetter(UrlDeshortenerListener listener) {
    fListener = listener;
  }
  
  public void runOutsideUiThread(String urls) {
    saveTitle(doGetTitle(urls));
  }
  

  @Override
  protected StringBuilder doInBackground(String... urls) {
    return doGetTitle(urls);
  }

  private StringBuilder doGetTitle(String... params) {
    Log.d("Resolving title", "URL " + params[0]);
    fURLTo = params[0];
    fBackupTitle = params[1];
    AndroidHttpClient httpClient = AndroidHttpClient
        .newInstance("Android ShareMore");
    HttpClientParams.setRedirecting(httpClient.getParams(), true);

    HttpGet headReq = new HttpGet(fURLTo);

    try {
      HttpResponse result = httpClient.execute(headReq);
      return ShareMoreUtils.getResponseString(result);
    } catch (IOException e) {
      Log.d("Resolving title Exception", e.getMessage());
      return null;
    } finally {
      httpClient.close();
    }
  }

  @Override
  protected void onPostExecute(StringBuilder result) {
    saveTitle(result);
  }

  private void saveTitle(StringBuilder result) {
    Log.d("Resolving title", "Ready");
    if (result != null) {
        String newTitle = result.toString();
        newTitle.replaceAll("\\s+", " ");
        Pattern titleP = Pattern.compile("<title>(.*?)</title>",Pattern.CASE_INSENSITIVE);
        Matcher m = titleP.matcher(newTitle);
        if(m.find()) {
          fListener.onTitleUpdate(m.group(1).trim(),fURLTo);
        } else {
          fListener.onTitleUpdate(null,fURLTo);
        }
    } else {
      fListener.onTitleUpdate(null,fURLTo);
    }
  }

  
}

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