| /* |
| * Copyright (c) 2007, 2008, 2010-2012 Eike Stepper (Berlin, Germany) and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.internal.net4j.buffer; |
| |
| import org.eclipse.net4j.buffer.IBuffer; |
| import org.eclipse.net4j.buffer.IBufferProvider; |
| import org.eclipse.net4j.util.lifecycle.Lifecycle; |
| |
| /** |
| * @author Eike Stepper |
| */ |
| public abstract class BufferProvider extends Lifecycle implements IBufferProvider.Introspection |
| { |
| private short bufferCapacity; |
| |
| private long providedBuffers; |
| |
| private long retainedBuffers; |
| |
| public BufferProvider(short bufferCapacity) |
| { |
| this.bufferCapacity = bufferCapacity; |
| } |
| |
| public final long getProvidedBuffers() |
| { |
| return providedBuffers; |
| } |
| |
| public final long getRetainedBuffers() |
| { |
| return retainedBuffers; |
| } |
| |
| public final short getBufferCapacity() |
| { |
| return bufferCapacity; |
| } |
| |
| public final IBuffer provideBuffer() |
| { |
| ++providedBuffers; |
| return doProvideBuffer(); |
| } |
| |
| public final void retainBuffer(IBuffer buffer) |
| { |
| ++retainedBuffers; |
| doRetainBuffer(buffer); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return "BufferProvider[capacity=" + bufferCapacity + "]"; //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| protected abstract IBuffer doProvideBuffer(); |
| |
| protected abstract void doRetainBuffer(IBuffer buffer); |
| } |