package fr.in2p3.jsaga.impl.buffer;
   
   import fr.in2p3.jsaga.impl.AbstractSagaObjectImpl;
   import org.ogf.saga.SagaObject;
   import org.ogf.saga.buffer.Buffer;
   import org.ogf.saga.error.*;
   
   /* ***************************************************
   * *** Centre de Calcul de l'IN2P3 - Lyon (France) ***
  * ***             http://cc.in2p3.fr/             ***
  * ***************************************************
  * File:   AbstractBufferImpl
  * Author: Sylvain Reynaud (sreynaud@in2p3.fr)
  * Date:   16 sept. 2007
  * ***************************************************
  * Description:                                      */
  /**
   *
   */
  public abstract class AbstractBufferImpl extends AbstractSagaObjectImpl implements Buffer {
      protected byte[] m_buffer;
  
      /** constructor */
      public AbstractBufferImpl() {
          m_buffer = null;
      }
  
      /** clone */
      public SagaObject clone() throws CloneNotSupportedException {
          // do not assign m_buffer here (see inherited classes)
          return super.clone();
      }
  
      public int getSize() throws IncorrectStateException {
          if (m_buffer != null) {
              return m_buffer.length;
          } else {
              return -1;
          }
      }
  
      public byte[] getData() throws DoesNotExistException, IncorrectStateException {
          if (m_buffer != null) {
              return m_buffer;
          } else {
              throw new DoesNotExistException("No I/O operation has been done on this buffer yet");
          }
      }
  
      public void close() {
          m_buffer = null;
      }
  
      public void close(float timeoutInSeconds) {
          this.close();
      }
  }