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Posted to commits@sling.apache.org by ro...@apache.org on 2017/11/07 09:24:55 UTC
[sling-org-apache-sling-commons-threads] 32/33: Move Sling to new
TLP location
This is an automated email from the ASF dual-hosted git repository.
rombert pushed a commit to annotated tag org.apache.sling.commons.threads-2.0.2-incubator
in repository https://gitbox.apache.org/repos/asf/sling-org-apache-sling-commons-threads.git
commit 0061bf1f84f23556cc2a22c128e5db53d753e890
Author: Felix Meschberger <fm...@apache.org>
AuthorDate: Thu Jun 18 09:21:02 2009 +0000
Move Sling to new TLP location
git-svn-id: https://svn.eu.apache.org/repos/asf/sling/tags/org.apache.sling.commons.threads-2.0.2-incubator@785979 13f79535-47bb-0310-9956-ffa450edef68
---
LICENSE | 202 +++++++++++++++++++++
NOTICE | 8 +
README.txt | 36 ++++
pom.xml | 91 ++++++++++
.../apache/sling/commons/threads/ThreadPool.java | 44 +++++
.../sling/commons/threads/ThreadPoolConfig.java | 202 +++++++++++++++++++++
.../sling/commons/threads/ThreadPoolManager.java | 56 ++++++
.../commons/threads/impl/DefaultThreadPool.java | 194 ++++++++++++++++++++
.../threads/impl/DefaultThreadPoolManager.java | 133 ++++++++++++++
.../threads/impl/ExtendedThreadFactory.java | 79 ++++++++
src/main/resources/META-INF/DISCLAIMER | 7 +
src/main/resources/META-INF/LICENSE | 202 +++++++++++++++++++++
src/main/resources/META-INF/NOTICE | 8 +
13 files changed, 1262 insertions(+)
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,202 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
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+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
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+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
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+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
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+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
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+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+ Work and such Derivative Works in Source or Object form.
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+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
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+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
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+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
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+ the conditions stated in this License.
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+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
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+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
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+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
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+ APPENDIX: How to apply the Apache License to your work.
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+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
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+ Copyright [yyyy] [name of copyright owner]
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+ 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
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+ 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,
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diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..3a4d87e
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,8 @@
+Apache Sling Threads
+Copyright 2008 The Apache Software Foundation
+
+Apache Sling is based on source code originally developed
+by Day Software (http://www.day.com/).
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
diff --git a/README.txt b/README.txt
new file mode 100644
index 0000000..37ca813
--- /dev/null
+++ b/README.txt
@@ -0,0 +1,36 @@
+Apache Sling Threads
+
+Support for thread handling like pooling.
+
+Disclaimer
+==========
+Apache Sling is an effort undergoing incubation at The Apache Software Foundation (ASF),
+sponsored by the Apache Jackrabbit PMC. Incubation is required of all newly accepted
+projects until a further review indicates that the infrastructure, communications,
+and decision making process have stabilized in a manner consistent with other
+successful ASF projects. While incubation status is not necessarily a reflection of
+the completeness or stability of the code, it does indicate that the project has yet
+to be fully endorsed by the ASF.
+
+Getting Started
+===============
+
+This component uses a Maven 2 (http://maven.apache.org/) build
+environment. It requires a Java 5 JDK (or higher) and Maven (http://maven.apache.org/)
+2.0.7 or later. We recommend to use the latest Maven version.
+
+If you have Maven 2 installed, you can compile and
+package the jar using the following command:
+
+ mvn package
+
+See the Maven 2 documentation for other build features.
+
+The latest source code for this component is available in the
+Subversion (http://subversion.tigris.org/) source repository of
+the Apache Software Foundation. If you have Subversion installed,
+you can checkout the latest source using the following command:
+
+ svn checkout http://svn.apache.org/repos/asf/incubator/sling/trunk/commons/threads
+
+See the Subversion documentation for other source control features.
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..324059e
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership. The ASF licenses this file
+ to you 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.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.sling</groupId>
+ <artifactId>sling</artifactId>
+ <version>3-incubator</version>
+ <relativePath>../../parent/pom.xml</relativePath>
+ </parent>
+
+ <artifactId>org.apache.sling.commons.threads</artifactId>
+ <packaging>bundle</packaging>
+ <version>2.0.2-incubator</version>
+
+ <name>Sling - Thread Support</name>
+ <description>
+ Support for thread handling like pooling.
+ </description>
+
+ <scm>
+ <connection>scm:svn:http://svn.apache.org/repos/asf/incubator/sling/tags/org.apache.sling.commons.threads-2.0.2-incubator</connection>
+ <developerConnection>scm:svn:https://svn.apache.org/repos/asf/incubator/sling/tags/org.apache.sling.commons.threads-2.0.2-incubator</developerConnection>
+ <url>http://svn.apache.org/viewvc/incubator/sling/tags/org.apache.sling.commons.threads-2.0.2-incubator</url>
+ </scm>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>maven-scr-plugin</artifactId>
+ </plugin>
+ <plugin>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>maven-bundle-plugin</artifactId>
+ <extensions>true</extensions>
+ <configuration>
+ <instructions>
+ <Export-Package>
+ org.apache.sling.commons.threads;version=${pom.version}
+ </Export-Package>
+ <Private-Package>
+ org.apache.sling.commons.threads.impl
+ </Private-Package>
+ </instructions>
+ </configuration>
+ </plugin>
+ </plugins>
+ </build>
+ <reporting>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-javadoc-plugin</artifactId>
+ <configuration>
+ <excludePackageNames>
+ org.apache.sling.commons.threads.impl
+ </excludePackageNames>
+ </configuration>
+ </plugin>
+ </plugins>
+ </reporting>
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.felix</groupId>
+ <artifactId>org.osgi.compendium</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.slf4j</groupId>
+ <artifactId>slf4j-api</artifactId>
+ </dependency>
+ </dependencies>
+</project>
diff --git a/src/main/java/org/apache/sling/commons/threads/ThreadPool.java b/src/main/java/org/apache/sling/commons/threads/ThreadPool.java
new file mode 100644
index 0000000..e99c13e
--- /dev/null
+++ b/src/main/java/org/apache/sling/commons/threads/ThreadPool.java
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.sling.commons.threads;
+
+/**
+ * The ThreadPool interface allows to start runnables by
+ * getting threads from a managed pool.
+ *
+ * @version $Id$
+ */
+public interface ThreadPool {
+
+ /**
+ * Execute a runnable
+ * @param runnable The {@link Runnable} to execute
+ */
+ void execute(Runnable runnable);
+
+ /**
+ * The name of the thread pool.
+ */
+ String getName();
+
+ /**
+ * Shut down the thread pool.
+ */
+ void shutdown();
+
+ ThreadPoolConfig getConfiguration();
+}
diff --git a/src/main/java/org/apache/sling/commons/threads/ThreadPoolConfig.java b/src/main/java/org/apache/sling/commons/threads/ThreadPoolConfig.java
new file mode 100644
index 0000000..1274aaa
--- /dev/null
+++ b/src/main/java/org/apache/sling/commons/threads/ThreadPoolConfig.java
@@ -0,0 +1,202 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.sling.commons.threads;
+
+import java.util.concurrent.ThreadFactory;
+
+/**
+ * The ThreadPool configuration.
+ *
+ * @version $Id$
+ */
+public final class ThreadPoolConfig {
+
+ /** The thread pool policies. */
+ public enum ThreadPoolPolicy {
+ ABORT,
+ DISCARD,
+ DISCARDOLDEST,
+ RUN
+ };
+
+ public enum ThreadPriority {
+ NORM,
+ MIN,
+ MAX
+ };
+
+ /** The min pool size. */
+ private int minPoolSize = 5;
+
+ /** The max pool size. */
+ private int maxPoolSize = 5;
+
+ /** The queue size */
+ private int queueSize = -1;
+
+ /** The keep alive time. */
+ private long keepAliveTime = 60000L;
+
+ /** The thread pool policy. Default is RUN. */
+ private ThreadPoolPolicy blockPolicy = ThreadPoolPolicy.RUN;
+
+ private boolean shutdownGraceful = false;
+
+ private int shutdownWaitTimeMs = -1;
+
+ private ThreadFactory factory;
+
+ private ThreadPriority priority = ThreadPriority.NORM;
+
+ private boolean isDaemon = false;
+
+ /** Can this configuration still be changed? */
+ private boolean isWritable = true;
+
+ /**
+ * Create a new default configuration.
+ */
+ public ThreadPoolConfig() {
+ // nothing to do
+ }
+
+ /**
+ * Clone an existing configuration
+ * @param copy The config to clone
+ */
+ public ThreadPoolConfig(ThreadPoolConfig copy) {
+ this.minPoolSize = copy.minPoolSize;
+ this.maxPoolSize = copy.maxPoolSize;
+ this.queueSize = copy.queueSize;
+ this.keepAliveTime = copy.keepAliveTime;
+ this.blockPolicy = copy.blockPolicy;
+ this.shutdownGraceful = copy.shutdownGraceful;
+ this.shutdownWaitTimeMs = copy.shutdownWaitTimeMs;
+ this.factory = copy.factory;
+ this.priority = copy.priority;
+ this.isDaemon = copy.isDaemon;
+ }
+
+ protected void checkWritable() {
+ if ( !isWritable ) {
+ throw new IllegalStateException("ThreadPoolConfig is read-only.");
+ }
+ }
+
+ /**
+ * Make the configuration read-only.
+ */
+ public void makeReadOnly() {
+ this.isWritable = false;
+ }
+
+ public int getMinPoolSize() {
+ return minPoolSize;
+ }
+
+ public void setMinPoolSize(int minPoolSize) {
+ this.checkWritable();
+ this.minPoolSize = minPoolSize;
+ }
+
+ public int getMaxPoolSize() {
+ return maxPoolSize;
+ }
+
+ public void setMaxPoolSize(int maxPoolSize) {
+ this.checkWritable();
+ this.maxPoolSize = maxPoolSize;
+ }
+
+ public int getQueueSize() {
+ return queueSize;
+ }
+
+ public void setQueueSize(int queueSize) {
+ this.checkWritable();
+ this.queueSize = queueSize;
+ }
+
+ public long getKeepAliveTime() {
+ return keepAliveTime;
+ }
+
+ public void setKeepAliveTime(long keepAliveTime) {
+ this.checkWritable();
+ this.keepAliveTime = keepAliveTime;
+ }
+
+ public ThreadPoolPolicy getBlockPolicy() {
+ return blockPolicy;
+ }
+
+ public void setBlockPolicy(ThreadPoolPolicy blockPolicy) {
+ this.checkWritable();
+ this.blockPolicy = blockPolicy;
+ if ( blockPolicy == null ) {
+ throw new IllegalArgumentException("Policy must not be null.");
+ }
+ }
+
+ public boolean isShutdownGraceful() {
+ return shutdownGraceful;
+ }
+
+ public void setShutdownGraceful(boolean shutdownGraceful) {
+ this.checkWritable();
+ this.shutdownGraceful = shutdownGraceful;
+ }
+
+ public int getShutdownWaitTimeMs() {
+ return shutdownWaitTimeMs;
+ }
+
+ public void setShutdownWaitTimeMs(int shutdownWaitTimeMs) {
+ this.checkWritable();
+ this.shutdownWaitTimeMs = shutdownWaitTimeMs;
+ }
+
+ public ThreadFactory getFactory() {
+ return factory;
+ }
+
+ public void setFactory(ThreadFactory factory) {
+ this.checkWritable();
+ this.factory = factory;
+ }
+
+ public ThreadPriority getPriority() {
+ return priority;
+ }
+
+ public void setPriority(ThreadPriority priority) {
+ this.checkWritable();
+ if ( priority == null ) {
+ throw new IllegalArgumentException("Priority must not be null.");
+ }
+ this.priority = priority;
+ }
+
+ public boolean isDaemon() {
+ return isDaemon;
+ }
+
+ public void setDaemon(boolean isDaemon) {
+ this.checkWritable();
+ this.isDaemon = isDaemon;
+ }
+}
\ No newline at end of file
diff --git a/src/main/java/org/apache/sling/commons/threads/ThreadPoolManager.java b/src/main/java/org/apache/sling/commons/threads/ThreadPoolManager.java
new file mode 100644
index 0000000..fc9c060
--- /dev/null
+++ b/src/main/java/org/apache/sling/commons/threads/ThreadPoolManager.java
@@ -0,0 +1,56 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.sling.commons.threads;
+
+
+/**
+ * The <cod>ThreadPoolManager</code> manages thread pools.
+ *
+ * @version $Id$
+ */
+public interface ThreadPoolManager {
+
+ /** The default thread pool name */
+ String DEFAULT_THREADPOOL_NAME = "default";
+
+ /**
+ * Add a new pool.
+ * If a pool with the same name already exists, the new pool is not added
+ * and false is returned.
+ * @param pool The pool.
+ * @return True if the pool could be added, false otherwise.
+ */
+ boolean add(ThreadPool pool);
+
+ /**
+ * Get a thread pool.
+ * If there is no thread pool with the given name, the default thread
+ * pool is returned.
+ * @param name The name of the thread pool or null for the default pool.
+ */
+ ThreadPool get(String name);
+
+ /**
+ * Create a new thread pool.
+ * If a pool with the same name already exists, no new pool is created
+ * and <code>null</code> is returned.
+ * @param name Name must not be null.
+ * @param config The thread pool configuration.
+ */
+ ThreadPool create(String name,
+ ThreadPoolConfig config);
+}
diff --git a/src/main/java/org/apache/sling/commons/threads/impl/DefaultThreadPool.java b/src/main/java/org/apache/sling/commons/threads/impl/DefaultThreadPool.java
new file mode 100644
index 0000000..7c19c75
--- /dev/null
+++ b/src/main/java/org/apache/sling/commons/threads/impl/DefaultThreadPool.java
@@ -0,0 +1,194 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.sling.commons.threads.impl;
+
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.Executors;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.RejectedExecutionHandler;
+import java.util.concurrent.SynchronousQueue;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.sling.commons.threads.ThreadPool;
+import org.apache.sling.commons.threads.ThreadPoolConfig;
+import org.apache.sling.commons.threads.ThreadPoolManager;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/**
+ * The DefaultThreadPool class implements the {@link ThreadPool} interface.
+ * Instances of this class are managed by the {@link ThreadPoolManager}.
+ *
+ * @version $Id$
+ */
+public class DefaultThreadPool
+ implements ThreadPool {
+
+ /** By default we use the logger for this class. */
+ protected final Logger logger = LoggerFactory.getLogger(this.getClass());
+
+ /** The name of this thread pool */
+ protected final String name;
+
+ /** The executor. */
+ protected ThreadPoolExecutor executor;
+
+ protected final ThreadPoolConfig configuration;
+
+ /**
+ * Create a new thread pool.
+ * @param name - The name of the thread pool. If null {@link DefaultThreadPoolManager#DEFAULT_THREADPOOL_NAME}
+ * is used
+ */
+ public DefaultThreadPool(final String name,
+ ThreadPoolConfig origConfig) {
+ this.logger.info("ThreadPool [{}] initializing ...", name);
+
+ // name
+ if ( name != null ) {
+ this.name = name;
+ } else {
+ this.name = DefaultThreadPoolManager.DEFAULT_THREADPOOL_NAME;
+ }
+
+ this.configuration = new ThreadPoolConfig(origConfig);
+
+ // factory
+ final ThreadFactory delegateThreadFactory;
+ if (this.configuration.getFactory() == null) {
+ logger.warn("No ThreadFactory is configured. Will use JVM default thread factory."
+ + ExtendedThreadFactory.class.getName());
+ delegateThreadFactory = Executors.defaultThreadFactory();
+ } else {
+ delegateThreadFactory = this.configuration.getFactory();
+ }
+ // Min pool size
+ if (this.configuration.getMinPoolSize() < 1) {
+ this.configuration.setMinPoolSize(1);
+ this.logger.warn("min-pool-size < 1 for pool \"" + name + "\". Set to 1");
+ }
+ // Max pool size
+ if ( this.configuration.getMaxPoolSize() < 0 ) {
+ this.configuration.setMaxPoolSize(Integer.MAX_VALUE);
+ }
+
+ // Set priority and daemon flag
+ final ExtendedThreadFactory threadFactory = new ExtendedThreadFactory(delegateThreadFactory, this.configuration.getPriority(), this.configuration.isDaemon());
+
+ // Keep alive time
+ if (this.configuration.getKeepAliveTime() < 0) {
+ this.configuration.setKeepAliveTime(1000);
+ this.logger.warn("keep-alive-time-ms < 0 for pool \"" + name + "\". Set to 1000");
+ }
+
+ // Queue
+ final BlockingQueue<Runnable> queue;
+ if (this.configuration.getQueueSize() != 0) {
+ if (this.configuration.getQueueSize() > 0) {
+ queue = new java.util.concurrent.ArrayBlockingQueue<Runnable>(this.configuration.getQueueSize());
+ } else {
+ queue = new LinkedBlockingQueue<Runnable>();
+ }
+ } else {
+ queue = new SynchronousQueue<Runnable>();
+ }
+
+ RejectedExecutionHandler handler = null;
+ switch (this.configuration.getBlockPolicy()) {
+ case ABORT :
+ handler = new ThreadPoolExecutor.AbortPolicy();
+ break;
+ case DISCARD :
+ handler = new ThreadPoolExecutor.AbortPolicy();
+ break;
+ case DISCARDOLDEST :
+ handler = new ThreadPoolExecutor.AbortPolicy();
+ break;
+ case RUN :
+ handler = new ThreadPoolExecutor.AbortPolicy();
+ break;
+ }
+ this.executor = new ThreadPoolExecutor(this.configuration.getMinPoolSize(),
+ this.configuration.getMaxPoolSize(),
+ this.configuration.getKeepAliveTime(),
+ TimeUnit.MILLISECONDS,
+ queue,
+ threadFactory,
+ handler);
+ this.configuration.makeReadOnly();
+ this.logger.info("ThreadPool [{}] initialized.", name);
+ }
+
+ /**
+ * @see org.apache.sling.commons.threads.ThreadPool#getName()
+ */
+ public String getName() {
+ return name;
+ }
+
+
+ /**
+ * @see org.apache.sling.commons.threads.ThreadPool#getConfiguration()
+ */
+ public ThreadPoolConfig getConfiguration() {
+ return this.configuration;
+ }
+
+ /**
+ * @see org.apache.sling.commons.threads.ThreadPool#execute(java.lang.Runnable)
+ */
+ public void execute(Runnable runnable) {
+ if ( this.executor == null ) {
+ throw new IllegalStateException("Thread pool " + this.name + " is already shutdown.");
+ }
+ if ( runnable != null ) {
+ this.logger.debug("Executing runnable: {},pool={}", runnable, this.name);
+
+ this.executor.execute(runnable);
+ }
+ }
+
+ /**
+ * @see org.apache.sling.commons.threads.ThreadPool#shutdown()
+ */
+ public void shutdown() {
+ if ( this.executor != null ) {
+ if (this.configuration.isShutdownGraceful()) {
+ this.executor.shutdown();
+ } else {
+ this.executor.shutdownNow();
+ }
+
+ try {
+ if (this.configuration.getShutdownWaitTimeMs() > 0) {
+ if (!this.executor.awaitTermination(this.configuration.getShutdownWaitTimeMs(), TimeUnit.MILLISECONDS)) {
+ logger.warn("running commands have not terminated within "
+ + this.configuration.getShutdownWaitTimeMs()
+ + "ms. Will shut them down by interruption");
+ this.executor.shutdownNow();
+ }
+ }
+ } catch (final InterruptedException ie) {
+ this.logger.error("Cannot shutdown ThreadPool", ie);
+ }
+ this.executor = null;
+ }
+ }
+}
diff --git a/src/main/java/org/apache/sling/commons/threads/impl/DefaultThreadPoolManager.java b/src/main/java/org/apache/sling/commons/threads/impl/DefaultThreadPoolManager.java
new file mode 100644
index 0000000..4ed4811
--- /dev/null
+++ b/src/main/java/org/apache/sling/commons/threads/impl/DefaultThreadPoolManager.java
@@ -0,0 +1,133 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.sling.commons.threads.impl;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.sling.commons.threads.ThreadPool;
+import org.apache.sling.commons.threads.ThreadPoolConfig;
+import org.apache.sling.commons.threads.ThreadPoolManager;
+import org.osgi.service.component.ComponentContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The DefaultThreadPoolManager implements the {@link ThreadPoolManager} interface
+ * and is responsible to manage {@link ThreadPool}s.
+ *
+ * @scr.component metatype="no"
+ * @scr.service interface="org.apache.sling.commons.threads.ThreadPoolManager"
+ *
+ * @version $Id$
+ */
+public class DefaultThreadPoolManager implements ThreadPoolManager {
+
+ /** By default we use the logger for this class. */
+ protected Logger logger = LoggerFactory.getLogger(getClass());
+
+ /** The managed thread pools */
+ protected final Map<String, ThreadPool> pools = new HashMap<String, ThreadPool>();
+
+ /**
+ * Activate this component.
+ */
+ protected void activate(ComponentContext context) throws Exception {
+ this.logger.info("Starting thread pool manager.");
+ final ThreadPool defaultPool = new DefaultThreadPool(
+ DEFAULT_THREADPOOL_NAME,
+ new ThreadPoolConfig());
+ synchronized ( this.pools ) {
+ this.pools.put(defaultPool.getName(), defaultPool);
+ }
+ this.logger.info("Thread pool manager startet with default pool.");
+ }
+
+ /**
+ * Deactivate this component.
+ */
+ protected void deactivate(ComponentContext context) throws Exception {
+ this.logger.info("Stopping thread pool manager.");
+ this.logger.debug("Disposing all thread pools");
+
+ synchronized ( this.pools ) {
+ for (ThreadPool pool : this.pools.values()) {
+ this.logger.debug("Shutting down thread pool {}", pool.getName());
+
+ pool.shutdown();
+
+ this.logger.debug("Thread pool " + pool.getName() + " is shut down.");
+ }
+ this.pools.clear();
+ }
+ this.logger.info("Thread pool manager stopped.");
+ }
+
+ /**
+ * @see org.apache.sling.commons.threads.ThreadPoolManager#add(org.apache.sling.commons.threads.ThreadPool)
+ */
+ public boolean add(ThreadPool pool) {
+ synchronized ( this.pools ) {
+ if (null != pools.get(pool.getName())) {
+ return false;
+ }
+ pools.put(pool.getName(), pool);
+ }
+ return true;
+ }
+
+ /**
+ * @see org.apache.sling.commons.threads.ThreadPoolManager#get(java.lang.String)
+ */
+ public ThreadPool get(String name) {
+ if ( name == null ) {
+ name = DEFAULT_THREADPOOL_NAME;
+ }
+ synchronized (this.pools) {
+ ThreadPool pool = this.pools.get(name);
+ if ( pool == null && !(name.equals(DEFAULT_THREADPOOL_NAME))) {
+ this.logger.info("Requested pool {} is not available, returning default pool.", name);
+ pool = this.pools.get(DEFAULT_THREADPOOL_NAME);
+ }
+ return pool;
+ }
+ }
+
+ /**
+ * @see org.apache.sling.commons.threads.ThreadPoolManager#create(java.lang.String, org.apache.sling.commons.threads.ThreadPoolConfig)
+ */
+ public ThreadPool create(String name,
+ ThreadPoolConfig config) {
+ if ( name == null ) {
+ throw new IllegalArgumentException("Name must not be null.");
+ }
+ if ( config == null ) {
+ throw new IllegalArgumentException("Config must not be null.");
+ }
+ synchronized ( this.pools ) {
+ ThreadPool pool = this.pools.get(name);
+ if ( pool != null ) {
+ // pool already exists
+ return null;
+ }
+ pool = new DefaultThreadPool(name, config);
+ this.pools.put(name, pool);
+ return pool;
+ }
+ }
+
+}
diff --git a/src/main/java/org/apache/sling/commons/threads/impl/ExtendedThreadFactory.java b/src/main/java/org/apache/sling/commons/threads/impl/ExtendedThreadFactory.java
new file mode 100644
index 0000000..b213fd8
--- /dev/null
+++ b/src/main/java/org/apache/sling/commons/threads/impl/ExtendedThreadFactory.java
@@ -0,0 +1,79 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.sling.commons.threads.impl;
+
+import java.util.concurrent.ThreadFactory;
+
+import org.apache.sling.commons.threads.ThreadPoolConfig;
+
+
+/**
+ * This class is responsible to create new Thread instances.
+ * It's a very basic implementation.
+ *
+ * @version $Id$
+ */
+public final class ExtendedThreadFactory implements ThreadFactory {
+
+ /** The daemon mode */
+ private final boolean isDaemon;
+
+ /** The priority of newly created Threads */
+ private final int priority;
+
+ /** The real factory. */
+ private final ThreadFactory factory;
+
+ /**
+ * Create a new wrapper for a thread factory handling the
+ *
+ * @param priority A non null value.
+ * @param isDaemon Whether new {@link Thread}s should run as daemons.
+ */
+ public ExtendedThreadFactory(final ThreadFactory factory,
+ final ThreadPoolConfig.ThreadPriority priority,
+ final boolean isDaemon) {
+ this.isDaemon = isDaemon;
+ if ( priority == null ) {
+ throw new IllegalStateException("Prioriy must not be null.");
+ }
+ switch ( priority ) {
+ case NORM : this.priority = Thread.NORM_PRIORITY;
+ break;
+ case MIN : this.priority = Thread.MIN_PRIORITY;
+ break;
+ case MAX : this.priority = Thread.MAX_PRIORITY;
+ break;
+ default: // this can never happen
+ this.priority = Thread.NORM_PRIORITY;
+ break;
+ }
+ this.factory = factory;
+ }
+
+ /**
+ * Invoke the thread factory and set the daemon flag and priority.
+ * @see java.util.concurrent.ThreadFactory#newThread(java.lang.Runnable)
+ */
+ public Thread newThread( final Runnable command ) {
+ final Thread thread = this.factory.newThread(command);
+ thread.setPriority( this.priority );
+ thread.setDaemon( this.isDaemon );
+
+ return thread;
+ }
+}
diff --git a/src/main/resources/META-INF/DISCLAIMER b/src/main/resources/META-INF/DISCLAIMER
new file mode 100644
index 0000000..90850c2
--- /dev/null
+++ b/src/main/resources/META-INF/DISCLAIMER
@@ -0,0 +1,7 @@
+Apache Sling is an effort undergoing incubation at The Apache Software Foundation (ASF),
+sponsored by the Apache Jackrabbit PMC. Incubation is required of all newly accepted
+projects until a further review indicates that the infrastructure, communications,
+and decision making process have stabilized in a manner consistent with other
+successful ASF projects. While incubation status is not necessarily a reflection of
+the completeness or stability of the code, it does indicate that the project has yet
+to be fully endorsed by the ASF.
\ No newline at end of file
diff --git a/src/main/resources/META-INF/LICENSE b/src/main/resources/META-INF/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/src/main/resources/META-INF/LICENSE
@@ -0,0 +1,202 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
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+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
+
+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
+ replaced with your own identifying information. (Don't include
+ the brackets!) The text should be enclosed in the appropriate
+ comment syntax for the file format. We also recommend that a
+ file or class name and description of purpose be included on the
+ same "printed page" as the copyright notice for easier
+ identification within third-party archives.
+
+ Copyright [yyyy] [name of copyright owner]
+
+ 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.
diff --git a/src/main/resources/META-INF/NOTICE b/src/main/resources/META-INF/NOTICE
new file mode 100644
index 0000000..3a4d87e
--- /dev/null
+++ b/src/main/resources/META-INF/NOTICE
@@ -0,0 +1,8 @@
+Apache Sling Threads
+Copyright 2008 The Apache Software Foundation
+
+Apache Sling is based on source code originally developed
+by Day Software (http://www.day.com/).
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
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