Android Open Source - My-Wallet-Android Determine First Seen Thread

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License

The source code is released under:

GNU General Public License

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Java Source Code

/*
 * Copyright 2011-2012 the original author or authors.
 */*from   w w w.j a  v a2 s  . c  om*/
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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/>.
 */

package piuk.blockchain.android;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.net.URLConnection;
import java.text.ParseException;
import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import piuk.blockchain.android.util.IOUtils;
import piuk.blockchain.android.util.Iso8601Format;


/**
 * @author Andreas Schildbach
 */
public class DetermineFirstSeenThread extends Thread
{
  private static final Pattern P_FIRST_SEEN = Pattern.compile("<li>First seen.*\\((\\d{4}-\\d{2}-\\d{2} \\d{2}:\\d{2}:\\d{2})\\)</li>");

  private final String address;

  public DetermineFirstSeenThread(final String address)
  {
    this.address = address;
    start();
  }

  @Override
  public void run()
  {
    try
    {
      final URLConnection connection = new URL(Constants.BLOCKEXPLORER_BASE_URL + "address/" + address).openConnection();
      connection.connect();
      final Reader is = new InputStreamReader(new BufferedInputStream(connection.getInputStream()));
      final StringBuilder content = new StringBuilder();
      IOUtils.copy(is, content);
      is.close();

      final Matcher m = P_FIRST_SEEN.matcher(content);
      if (m.find())
      {
        succeed(Iso8601Format.parseDateTime(m.group(1)));
      }
      else
      {
        succeed(null);
      }
    }
    catch (final IOException x)
    {
      failed(x);
    }
    catch (final ParseException x)
    {
      failed(x);
    }
  }

  protected void succeed(final Date creationTime)
  {
  }

  protected void failed(final Exception x)
  {
  }
}

Java Source Code List