StreamUtils.java

/**
 *   Copyright 2006 Alcatel, OSP.
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */
package org.alcatel.jsce.util;

import java.io.*;
import java.util.zip.*;

/**
 * <p>Title: JAIN Slee for the OSP</p>
 * <p>Description: JAIN Slee implementation on top of the Alcatel OSP platform</p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: Alcatel Namur</p>
 * @author Dominique Gallot
 * @version 1.0
 */

public class StreamUtils
{
  private StreamUtils() {}

  public static void copyStream( Reader reader, Writer writer ) throws IOException
  {
    int len;
    char[] buffer = new char[1024];
    while((len = reader.read(buffer)) >= 0)
    {
      writer.write(buffer, 0, len);
    }
  }

  public static void copyStream( InputStream inputStream, OutputStream outputStream ) throws IOException
  {
    int len;
    byte[] buffer = new byte[1024];
    while((len = inputStream.read(buffer)) >= 0)
    {
      outputStream.write(buffer, 0, len);
    }
  }

  public static void safeClose( InputStream inputStream )
  {
    if ( inputStream == null )
      return;
    try
    {
      inputStream.close();
    } catch (IOException ex) { }
  }

  public static void safeClose( OutputStream outputStream )
  {
    if ( outputStream == null )
      return;
    try
    {
      outputStream.close();
    } catch (IOException ex) { }
  }

  public static void safeClose( Writer writer )
  {
    if ( writer == null )
      return;
    try
    {
      writer.close();
    } catch (IOException ex) { }
  }

  public static void safeClose( ZipFile zipFile )
  {
    if ( zipFile == null )
      return;
    try
    {
      zipFile.close();
    } catch (IOException ex) { }
  }

}