From 7c279747beb43c7e88633a6228a155a30e6834f7 Mon Sep 17 00:00:00 2001 From: Benjamin Culkin Date: Mon, 27 May 2024 11:38:33 -0400 Subject: Initial import --- .../foundation/concurrent/AbstractPipe.java | 77 ++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 israfil-foundation-concurrent/src/main/java/net/israfil/foundation/concurrent/AbstractPipe.java (limited to 'israfil-foundation-concurrent/src/main/java/net/israfil/foundation/concurrent/AbstractPipe.java') diff --git a/israfil-foundation-concurrent/src/main/java/net/israfil/foundation/concurrent/AbstractPipe.java b/israfil-foundation-concurrent/src/main/java/net/israfil/foundation/concurrent/AbstractPipe.java new file mode 100644 index 0000000..4c5226a --- /dev/null +++ b/israfil-foundation-concurrent/src/main/java/net/israfil/foundation/concurrent/AbstractPipe.java @@ -0,0 +1,77 @@ +/* + * Copyright (c) 2006, 2007 Israfil Consulting Services Corporation + * Copyright (c) 2006, 2007 Christian Edward Gruber + * All Rights Reserved + * + * This software is licensed under the Berkeley Standard Distribution license, + * (BSD license), as defined below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of Israfil Consulting Services nor the names of its contributors + * may be used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, + * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + * + * $Id: Source.java 129 2006-12-31 23:20:02Z cgruber $ + */ +package net.israfil.foundation.concurrent; + +import java.util.concurrent.BlockingQueue; +import java.util.concurrent.TimeUnit; + +/** + * An object that consumes an object and processes it, then produces the result + * upon request. If the processor has no item in processing, it may consume + * an item. If the processor has an item it produces it when requested. In + * the converse cases the behaviour of the object depends on whether the + * processor is in its on state or its off state. + * + * @author Christian Edward Gruber + */ +public abstract class AbstractPipe extends AbstractGated implements Pipe { + + protected BlockingQueue queue; + + public AbstractPipe() {} + + public BlockingQueue getQueue() { return queue; } + public void setQueue(BlockingQueue queue) { this.queue = queue; } + + public void consume(I item) { + try { + this.consume(item,0,null); + } catch (InterruptedException e) { + throw new RuntimeException(e); + } + } + + public O produce() { + try { + return this.produce(0,null); + } catch (InterruptedException e) { + throw new RuntimeException(e); + } + } + + protected static void validateTimeout(long timeout, TimeUnit unit) { + if (timeout > 0 && unit == null) + throw new IllegalArgumentException("Cannot set a timeout with a null TimeUnit"); + } +} -- cgit v1.2.3