|
|
@@ -0,0 +1,58 @@
|
|
|
+/*
|
|
|
+ * Licensed to Elasticsearch under one or more contributor
|
|
|
+ * license agreements. See the NOTICE file distributed with
|
|
|
+ * this work for additional information regarding copyright
|
|
|
+ * ownership. Elasticsearch 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.hadoop.util;
|
|
|
+
|
|
|
+import java.util.concurrent.TimeUnit;
|
|
|
+
|
|
|
+/**
|
|
|
+ * A replacement for the ShutdownHookManager from hadoop.
|
|
|
+ *
|
|
|
+ * This class does not actually add a shutdown hook. Hadoop's shutdown hook
|
|
|
+ * manager does not fail gracefully when it lacks security manager permissions
|
|
|
+ * to add shutdown hooks. This implements the same api as the hadoop class, but
|
|
|
+ * with no-ops.
|
|
|
+ */
|
|
|
+public class ShutdownHookManager {
|
|
|
+ private static final ShutdownHookManager MGR = new ShutdownHookManager();
|
|
|
+
|
|
|
+ public static ShutdownHookManager get() {
|
|
|
+ return MGR;
|
|
|
+ }
|
|
|
+
|
|
|
+ private ShutdownHookManager() {}
|
|
|
+
|
|
|
+ public void addShutdownHook(Runnable shutdownHook, int priority) {}
|
|
|
+
|
|
|
+ public void addShutdownHook(Runnable shutdownHook, int priority, long timeout, TimeUnit unit) {}
|
|
|
+
|
|
|
+ public boolean removeShutdownHook(Runnable shutdownHook) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ public boolean hasShutdownHook(Runnable shutdownHook) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ public boolean isShutdownInProgress() {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ public void clearShutdownHooks() {}
|
|
|
+}
|
Mark Vieira