com.moarub.util.PageTitleGetter.java Source code

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Here is the source code for com.moarub.util.PageTitleGetter.java

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/*******************************************************************************
 * Copyright (c) 2012 Moarub Oy.
 * 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);
        }
    }

}