| /** |
| * 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.mesos.state; |
| |
| import java.util.Iterator; |
| |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeoutException; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.mesos.MesosNativeLibrary; |
| |
| /** |
| * Abstract implementation of State that provides operations on |
| * futures to make concrete classes easier to create. |
| */ |
| public abstract class AbstractState implements State { |
| static { |
| MesosNativeLibrary.load(); |
| } |
| |
| @Override |
| public Future<Variable> fetch(final String name) { |
| if (!MesosNativeLibrary.version().before(MESOS_2161_JIRA_FIX_VERSION)) { |
| return new FetchFuture(name); |
| } |
| |
| // TODO(jmlvanre): Deprecate anonymous future in 0.24 (MESOS-2161). |
| final long future = __fetch(name); // Asynchronously start the operation. |
| return new Future<Variable>() { |
| @Override |
| public boolean cancel(boolean mayInterruptIfRunning) { |
| if (mayInterruptIfRunning) { |
| return __fetch_cancel(future); |
| } |
| return false; // Should not interrupt and already running (or finished). |
| } |
| |
| @Override |
| public boolean isCancelled() { |
| return __fetch_is_cancelled(future); |
| } |
| |
| @Override |
| public boolean isDone() { |
| return __fetch_is_done(future); |
| } |
| |
| @Override |
| public Variable get() throws InterruptedException, ExecutionException { |
| return __fetch_get(future); |
| } |
| |
| @Override |
| public Variable get(long timeout, TimeUnit unit) |
| throws InterruptedException, ExecutionException, TimeoutException { |
| return __fetch_get_timeout(future, timeout, unit); |
| } |
| |
| @Override |
| protected void finalize() { |
| __fetch_finalize(future); |
| } |
| }; |
| } |
| |
| @Override |
| public Future<Variable> store(Variable variable) { |
| if (!MesosNativeLibrary.version().before(MESOS_2161_JIRA_FIX_VERSION)) { |
| return new StoreFuture(variable); |
| } |
| |
| // TODO(jmlvanre): Deprecate anonymous future in 0.24 (MESOS-2161). |
| final long future = __store(variable); // Asynchronously start the operation. |
| return new Future<Variable>() { |
| @Override |
| public boolean cancel(boolean mayInterruptIfRunning) { |
| if (mayInterruptIfRunning) { |
| return __store_cancel(future); |
| } |
| return false; // Should not interrupt and already running (or finished). |
| } |
| |
| @Override |
| public boolean isCancelled() { |
| return __store_is_cancelled(future); |
| } |
| |
| @Override |
| public boolean isDone() { |
| return __store_is_done(future); |
| } |
| |
| @Override |
| public Variable get() throws InterruptedException, ExecutionException { |
| return __store_get(future); |
| } |
| |
| @Override |
| public Variable get(long timeout, TimeUnit unit) |
| throws InterruptedException, ExecutionException, TimeoutException { |
| return __store_get_timeout(future, timeout, unit); |
| } |
| |
| @Override |
| protected void finalize() { |
| __store_finalize(future); |
| } |
| }; |
| } |
| |
| @Override |
| public Future<Boolean> expunge(Variable variable) { |
| if (!MesosNativeLibrary.version().before(MESOS_2161_JIRA_FIX_VERSION)) { |
| return new ExpungeFuture(variable); |
| } |
| |
| // TODO(jmlvanre): Deprecate anonymous future in 0.24 (MESOS-2161). |
| final long future = __expunge(variable); // Asynchronously start the operation. |
| return new Future<Boolean>() { |
| @Override |
| public boolean cancel(boolean mayInterruptIfRunning) { |
| if (mayInterruptIfRunning) { |
| return __expunge_cancel(future); |
| } |
| return false; // Should not interrupt and already running (or finished). |
| } |
| |
| @Override |
| public boolean isCancelled() { |
| return __expunge_is_cancelled(future); |
| } |
| |
| @Override |
| public boolean isDone() { |
| return __expunge_is_done(future); |
| } |
| |
| @Override |
| public Boolean get() throws InterruptedException, ExecutionException { |
| return __expunge_get(future); |
| } |
| |
| @Override |
| public Boolean get(long timeout, TimeUnit unit) |
| throws InterruptedException, ExecutionException, TimeoutException { |
| return __expunge_get_timeout(future, timeout, unit); |
| } |
| |
| @Override |
| protected void finalize() { |
| __expunge_finalize(future); |
| } |
| }; |
| } |
| |
| public Future<Iterator<String>> names() { |
| if (!MesosNativeLibrary.version().before(MESOS_2161_JIRA_FIX_VERSION)) { |
| return new NamesFuture(); |
| } |
| |
| // TODO(jmlvanre): Deprecate anonymous future in 0.24 (MESOS-2161). |
| final long future = __names(); // Asynchronously start the operation. |
| return new Future<Iterator<String>>() { |
| @Override |
| public boolean cancel(boolean mayInterruptIfRunning) { |
| if (mayInterruptIfRunning) { |
| return __names_cancel(future); |
| } |
| return false; // Should not interrupt and already running (or finished). |
| } |
| |
| @Override |
| public boolean isCancelled() { |
| return __names_is_cancelled(future); |
| } |
| |
| @Override |
| public boolean isDone() { |
| return __names_is_done(future); |
| } |
| |
| @Override |
| public Iterator<String> get() throws InterruptedException, |
| ExecutionException { |
| return __names_get(future); |
| } |
| |
| @Override |
| public Iterator<String> get(long timeout, TimeUnit unit) |
| throws InterruptedException, ExecutionException, TimeoutException { |
| return __names_get_timeout(future, timeout, unit); |
| } |
| |
| @Override |
| protected void finalize() { |
| __names_finalize(future); |
| } |
| }; |
| } |
| |
| protected native void finalize(); |
| |
| // Native implementations of 'fetch', 'store', 'expunge', and 'names'. We wrap |
| // them in classes to carry the java references correctly through the JNI |
| // bindings (MESOS-2161). The native functions in AbstractState will be |
| // deprecated in 0.24. |
| |
| private class FetchFuture implements Future<Variable> { |
| |
| public FetchFuture(String name) { |
| future = __fetch(name); |
| } |
| |
| @Override |
| public native boolean cancel(boolean mayInterruptIfRunning); |
| |
| @Override |
| public native boolean isCancelled(); |
| |
| @Override |
| public native boolean isDone(); |
| |
| @Override |
| public native Variable get() |
| throws InterruptedException, ExecutionException; |
| |
| @Override |
| public native Variable get(long timeout, TimeUnit unit) |
| throws InterruptedException, ExecutionException, TimeoutException; |
| |
| @Override |
| protected native void finalize(); |
| |
| private long future; |
| } |
| |
| private native long __fetch(String name); |
| |
| // TODO(jmlvanre): Deprecate below functions in 0.24 because we can't track |
| // the java object references correctly. (MESOS-2161). The above 'FetchFuture' |
| // class fixes this bug. We leave the below functions for backwards |
| // compatibility. |
| private native boolean __fetch_cancel(long future); |
| private native boolean __fetch_is_cancelled(long future); |
| private native boolean __fetch_is_done(long future); |
| private native Variable __fetch_get(long future); |
| private native Variable __fetch_get_timeout( |
| long future, long timeout, TimeUnit unit); |
| private native void __fetch_finalize(long future); |
| |
| private class StoreFuture implements Future<Variable> { |
| |
| public StoreFuture(Variable variable) { |
| future = __store(variable); |
| } |
| |
| @Override |
| public native boolean cancel(boolean mayInterruptIfRunning); |
| |
| @Override |
| public native boolean isCancelled(); |
| |
| @Override |
| public native boolean isDone(); |
| |
| @Override |
| public native Variable get() |
| throws InterruptedException, ExecutionException; |
| |
| @Override |
| public native Variable get(long timeout, TimeUnit unit) |
| throws InterruptedException, ExecutionException, TimeoutException; |
| |
| @Override |
| protected native void finalize(); |
| |
| private long future; |
| } |
| |
| private native long __store(Variable variable); |
| |
| // TODO(jmlvanre): Deprecate below functions in 0.24 because we can't track |
| // the java object references correctly. (MESOS-2161). The above 'StoreFuture' |
| // class fixes this bug. We leave the below functions for backwards |
| // compatibility. |
| private native boolean __store_cancel(long future); |
| private native boolean __store_is_cancelled(long future); |
| private native boolean __store_is_done(long future); |
| private native Variable __store_get(long future); |
| private native Variable __store_get_timeout( |
| long future, long timeout, TimeUnit unit); |
| private native void __store_finalize(long future); |
| |
| private class ExpungeFuture implements Future<Boolean> { |
| |
| public ExpungeFuture(Variable variable) { |
| future = __expunge(variable); |
| } |
| |
| @Override |
| public native boolean cancel(boolean mayInterruptIfRunning); |
| |
| @Override |
| public native boolean isCancelled(); |
| |
| @Override |
| public native boolean isDone(); |
| |
| @Override |
| public native Boolean get() |
| throws InterruptedException, ExecutionException; |
| |
| @Override |
| public native Boolean get(long timeout, TimeUnit unit) |
| throws InterruptedException, ExecutionException, TimeoutException; |
| |
| @Override |
| protected native void finalize(); |
| |
| private long future; |
| } |
| |
| private native long __expunge(Variable variable); |
| |
| // TODO(jmlvanre): Deprecate below functions in 0.24 because we can't track |
| // the java object references correctly. (MESOS-2161). The above |
| // 'ExpungeFuture' class fixes this bug. We leave the below functions for |
| // backwards compatibility. |
| private native boolean __expunge_cancel(long future); |
| private native boolean __expunge_is_cancelled(long future); |
| private native boolean __expunge_is_done(long future); |
| private native Boolean __expunge_get(long future); |
| private native Boolean __expunge_get_timeout( |
| long future, long timeout, TimeUnit unit); |
| private native void __expunge_finalize(long future); |
| |
| private class NamesFuture implements Future<Iterator<String>> { |
| |
| public NamesFuture() { |
| future = __names(); |
| } |
| |
| @Override |
| public native boolean cancel(boolean mayInterruptIfRunning); |
| |
| @Override |
| public native boolean isCancelled(); |
| |
| @Override |
| public native boolean isDone(); |
| |
| @Override |
| public native Iterator<String> get() |
| throws InterruptedException, ExecutionException; |
| |
| @Override |
| public native Iterator<String> get(long timeout, TimeUnit unit) |
| throws InterruptedException, ExecutionException, TimeoutException; |
| |
| @Override |
| protected native void finalize(); |
| |
| private long future; |
| } |
| |
| private native long __names(); |
| |
| // TODO(jmlvanre): Deprecate below functions in 0.24 because we can't track |
| // the java object references correctly. (MESOS-2161). The above 'NamesFuture' |
| // class fixes this bug. We leave the below functions for backwards |
| // compatibility. |
| private native boolean __names_cancel(long future); |
| private native boolean __names_is_cancelled(long future); |
| private native boolean __names_is_done(long future); |
| private native Iterator<String> __names_get(long future); |
| private native Iterator<String> __names_get_timeout( |
| long future, long timeout, TimeUnit unit); |
| private native void __names_finalize(long future); |
| |
| private long __storage; |
| private long __state; |
| |
| private final static MesosNativeLibrary.Version MESOS_2161_JIRA_FIX_VERSION = |
| new MesosNativeLibrary.Version(0, 22, 1); |
| } |