/***********************************************************************************************************************
* Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
*
* 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.
**********************************************************************************************************************/
package eu.stratosphere.nephele.jobmanager;
import eu.stratosphere.core.io.StringRecord;
import eu.stratosphere.runtime.io.api.RecordReader;
import eu.stratosphere.runtime.io.api.RecordWriter;
import eu.stratosphere.nephele.template.AbstractTask;
/**
* This task is used during the unit tests to generate a custom exception and check the proper response of the execution
* engine.
*
*/
public class ExceptionTask extends AbstractTask {
/**
* The test error message included in the thrown exception
*/
public static final String ERROR_MESSAGE = "This is an expected test exception";
/**
* The custom exception thrown by the this task.
*
*/
public static class TestException extends Exception {
/**
* The generated serial version UID.
*/
private static final long serialVersionUID = -974961143742490972L;
/**
* Constructs a new test exception.
*
* @param msg
* the error message
*/
public TestException(String msg) {
super(msg);
}
}
@Override
public void registerInputOutput() {
new RecordReader<StringRecord>(this, StringRecord.class);
new RecordWriter<StringRecord>(this);
}
@Override
public void invoke() throws Exception {
// Throw the exception immediately
throw new TestException(ERROR_MESSAGE);
}
}