[15/52] [abbrv] flink git commit: [FLINK-4851] [rm] Introduce FatalErrorHandler and MetricRegistry to RM

[se...@apache.org]

http://git-wip-us.apache.org/repos/asf/flink/blob/70af08c6/flink-runtime/src/test/java/org/apache/flink/runtime/util/TestingFatalErrorHandler.java
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diff --git a/flink-runtime/src/test/java/org/apache/flink/runtime/util/TestingFatalErrorHandler.java b/flink-runtime/src/test/java/org/apache/flink/runtime/util/TestingFatalErrorHandler.java
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index 0000000..616313c
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+++ b/flink-runtime/src/test/java/org/apache/flink/runtime/util/TestingFatalErrorHandler.java
@@ -0,0 +1,83 @@
+/*
+ * 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.flink.runtime.util;
+
+import org.apache.flink.runtime.rpc.FatalErrorHandler;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.concurrent.atomic.AtomicReference;
+
+/**
+ * Testing fatal error handler which records the occurred exceptions during the execution of the
+ * tests. Captured exceptions are thrown as a {@link TestingException}.
+ */
+public class TestingFatalErrorHandler implements FatalErrorHandler {
+	private static final Logger LOG = LoggerFactory.getLogger(TestingFatalErrorHandler.class);
+	private final AtomicReference<Throwable> atomicThrowable;
+
+	public TestingFatalErrorHandler() {
+		atomicThrowable = new AtomicReference<>(null);
+	}
+
+	public void rethrowError() throws TestingException {
+		Throwable throwable = atomicThrowable.get();
+
+		if (throwable != null) {
+			throw new TestingException(throwable);
+		}
+	}
+
+	public boolean hasExceptionOccurred() {
+		return atomicThrowable.get() != null;
+	}
+
+	public Throwable getException() {
+		return atomicThrowable.get();
+	}
+
+	@Override
+	public void onFatalError(Throwable exception) {
+		LOG.error("OnFatalError:", exception);
+
+		if (!atomicThrowable.compareAndSet(null, exception)) {
+			atomicThrowable.get().addSuppressed(exception);
+		}
+	}
+
+	//------------------------------------------------------------------
+	// static utility classes
+	//------------------------------------------------------------------
+
+	private static final class TestingException extends Exception {
+		public TestingException(String message) {
+			super(message);
+		}
+
+		public TestingException(String message, Throwable cause) {
+			super(message, cause);
+		}
+
+		public TestingException(Throwable cause) {
+			super(cause);
+		}
+
+		private static final long serialVersionUID = -4648195335470914498L;
+	}
+}