Remove odl-controller-exp-netty-config

[controller.git] / opendaylight / config / threadpool-config-impl / src / main / java / org / opendaylight / controller / config / threadpool / util / FlexibleThreadPoolWrapper.java

diff --git a/opendaylight/config/threadpool-config-impl/src/main/java/org/opendaylight/controller/config/threadpool/util/FlexibleThreadPoolWrapper.java b/opendaylight/config/threadpool-config-impl/src/main/java/org/opendaylight/controller/config/threadpool/util/FlexibleThreadPoolWrapper.java
deleted file mode 100644 (file)
index 6fb1adc..0000000
--- a/opendaylight/config/threadpool-config-impl/src/main/java/org/opendaylight/controller/config/threadpool/util/FlexibleThreadPoolWrapper.java
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * Copyright (c) 2013 Cisco Systems, Inc. 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
- */
-package org.opendaylight.controller.config.threadpool.util;
-
-import java.io.Closeable;
-import java.util.OptionalInt;
-import java.util.concurrent.BlockingQueue;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.RejectedExecutionException;
-import java.util.concurrent.RejectedExecutionHandler;
-import java.util.concurrent.ThreadFactory;
-import java.util.concurrent.ThreadPoolExecutor;
-import java.util.concurrent.TimeUnit;
-import org.opendaylight.controller.config.threadpool.ThreadPool;
-
-/**
- * Implementation of {@link ThreadPool} using flexible number of threads wraps
- * {@link ExecutorService}.
- */
-public class FlexibleThreadPoolWrapper implements ThreadPool, Closeable {
-    private final ThreadPoolExecutor executor;
-
-    public FlexibleThreadPoolWrapper(final int minThreadCount, final int maxThreadCount, final long keepAlive,
-            final TimeUnit timeUnit, final ThreadFactory threadFactory) {
-        this(minThreadCount, maxThreadCount, keepAlive, timeUnit, threadFactory, getQueue(OptionalInt.empty()));
-    }
-
-    public FlexibleThreadPoolWrapper(final int minThreadCount, final int maxThreadCount, final long keepAlive,
-            final TimeUnit timeUnit, final ThreadFactory threadFactory, final OptionalInt queueCapacity) {
-        this(minThreadCount, maxThreadCount, keepAlive, timeUnit, threadFactory, getQueue(queueCapacity));
-    }
-
-    private FlexibleThreadPoolWrapper(final int minThreadCount, final int maxThreadCount, final long keepAlive,
-            final TimeUnit timeUnit, final ThreadFactory threadFactory, final BlockingQueue<Runnable> queue) {
-
-        executor = new ThreadPoolExecutor(minThreadCount, maxThreadCount, keepAlive, timeUnit,
-                queue, threadFactory, new FlexibleRejectionHandler());
-        executor.prestartAllCoreThreads();
-    }
-
-    /**
-     * Overriding the queue:
-     * ThreadPoolExecutor would not create new threads if the queue is not full, thus adding
-     * occurs in RejectedExecutionHandler.
-     * This impl saturates threadpool first, then queue. When both are full caller will get blocked.
-     */
-    private static ForwardingBlockingQueue getQueue(final OptionalInt capacity) {
-        return new ForwardingBlockingQueue(
-            capacity.isPresent() ? new LinkedBlockingQueue<>(capacity.orElseThrow()) : new LinkedBlockingQueue<>());
-    }
-
-    @Override
-    public ExecutorService getExecutor() {
-        return Executors.unconfigurableExecutorService(executor);
-    }
-
-    public int getMinThreadCount() {
-        return executor.getCorePoolSize();
-    }
-
-    public void setMinThreadCount(final int minThreadCount) {
-        executor.setCorePoolSize(minThreadCount);
-    }
-
-    @Override
-    public int getMaxThreadCount() {
-        return executor.getMaximumPoolSize();
-    }
-
-    public void setMaxThreadCount(final int maxThreadCount) {
-        executor.setMaximumPoolSize(maxThreadCount);
-    }
-
-    public long getKeepAliveMillis() {
-        return executor.getKeepAliveTime(TimeUnit.MILLISECONDS);
-    }
-
-    public void setKeepAliveMillis(final long keepAliveMillis) {
-        executor.setKeepAliveTime(keepAliveMillis, TimeUnit.MILLISECONDS);
-    }
-
-    public void setThreadFactory(final ThreadFactory threadFactory) {
-        executor.setThreadFactory(threadFactory);
-    }
-
-    public void prestartAllCoreThreads() {
-        executor.prestartAllCoreThreads();
-    }
-
-    @Override
-    public void close() {
-        executor.shutdown();
-    }
-
-    /**
-     * if the max threads are met, then it will raise a rejectedExecution. We then push to the queue.
-     */
-    private static final class FlexibleRejectionHandler implements RejectedExecutionHandler {
-        @Override
-        @SuppressWarnings("checkstyle:parameterName")
-        public void rejectedExecution(final Runnable r, final ThreadPoolExecutor executor) {
-            try {
-                executor.getQueue().put(r);
-            } catch (InterruptedException e) {
-                throw new RejectedExecutionException("Interrupted while waiting on the queue", e);
-            }
-        }
-    }
-
-    private static final class ForwardingBlockingQueue
-            extends com.google.common.util.concurrent.ForwardingBlockingQueue<Runnable> {
-        private final BlockingQueue<Runnable> delegate;
-
-        ForwardingBlockingQueue(final BlockingQueue<Runnable> delegate) {
-            this.delegate = delegate;
-        }
-
-        @Override
-        protected BlockingQueue<Runnable> delegate() {
-            return delegate;
-        }
-
-        @Override
-        @SuppressWarnings("checkstyle:parameterName")
-        public boolean offer(final Runnable o) {
-            // ThreadPoolExecutor will spawn a new thread after core size is reached only
-            // if the queue.offer returns false.
-            return false;
-        }
-    }
-}