diff options
| author | Benjamin Culkin <scorpress@gmail.com> | 2024-05-27 11:38:33 -0400 |
|---|---|---|
| committer | Benjamin Culkin <scorpress@gmail.com> | 2024-05-27 11:38:33 -0400 |
| commit | 7c279747beb43c7e88633a6228a155a30e6834f7 (patch) | |
| tree | 511176048944fa7332dc1a163a6148c46e7c61b3 /israfil-foundation-concurrent/src/main/java/net/israfil/foundation/concurrent/ProcessingPipe.java | |
Initial import
Diffstat (limited to 'israfil-foundation-concurrent/src/main/java/net/israfil/foundation/concurrent/ProcessingPipe.java')
| -rw-r--r-- | israfil-foundation-concurrent/src/main/java/net/israfil/foundation/concurrent/ProcessingPipe.java | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/israfil-foundation-concurrent/src/main/java/net/israfil/foundation/concurrent/ProcessingPipe.java b/israfil-foundation-concurrent/src/main/java/net/israfil/foundation/concurrent/ProcessingPipe.java new file mode 100644 index 0000000..2e23c2a --- /dev/null +++ b/israfil-foundation-concurrent/src/main/java/net/israfil/foundation/concurrent/ProcessingPipe.java @@ -0,0 +1,90 @@ +/*
+ * 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.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 <a href="mailto:cgruber@israfil.net">Christian Edward Gruber </a>
+ */
+public class ProcessingPipe<I,O> extends AbstractPipe<I,O> {
+
+ protected Processor<I,O> processor;
+ protected Integer timeout;
+ protected TimeUnit timeoutUnit;
+
+ public ProcessingPipe() {}
+
+ public Processor<I,O> getProcessor() { return processor; }
+ public void setProcessor(Processor<I,O> processor) {
+ this.processor = processor;
+ }
+ public Integer getTimeout() { return timeout; }
+ public void setTimeout(Integer timeout) { this.timeout = timeout; }
+ public TimeUnit getTimeoutUnit() { return timeoutUnit; }
+ public void setTimeoutUnit(TimeUnit timeoutUnit) {
+ this.timeoutUnit = timeoutUnit;
+ }
+
+ public void consume(I item, long timeout, TimeUnit unit) throws InterruptedException {
+ validateTimeout(timeout,unit);
+ try {
+ if (timeout > 0) getQueue().offer(item,timeout,unit);
+ else getQueue().put(item);
+ } catch (InterruptedException e) {
+ throw e;
+ }
+ }
+
+ public O produce(long timeout, TimeUnit unit) throws InterruptedException {
+ validateTimeout(timeout,unit);
+ O processedItem = null;
+ try {
+ if (timeout > 0)
+ processedItem = this.processor.process(getQueue().poll(timeout,unit),getTimeout(),getTimeoutUnit());
+ else
+ processedItem = this.processor.process(getQueue().poll(),getTimeout(),getTimeoutUnit());
+ } catch (InterruptedException e) {
+ throw e;
+ }
+ return processedItem;
+ }
+
+}
|