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ManagedContextTest.java
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ManagedContextTest.java
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/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.jet.core;
import com.hazelcast.core.ManagedContext;
import com.hazelcast.jet.JetInstance;
import com.hazelcast.jet.config.JetConfig;
import com.hazelcast.jet.core.processor.SinkProcessors;
import com.hazelcast.jet.stream.IStreamList;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import static com.hazelcast.jet.core.Edge.between;
import static java.util.Collections.singletonList;
import static org.junit.Assert.assertEquals;
@Category(QuickTest.class)
@RunWith(HazelcastParallelClassRunner.class)
public class ManagedContextTest extends JetTestSupport {
public static final String INJECTED_VALUE = "injectedValue";
private JetInstance jet;
@Before
public void setup() {
JetConfig jetConfig = new JetConfig();
jetConfig.getHazelcastConfig().setManagedContext(new MockManagedContext());
jet = this.createJetMember(jetConfig);
}
@Test
public void when_managedContextSet_then_processorsInitWithContext() {
// Given
DAG dag = new DAG();
Vertex p = dag.newVertex("p", TestProcessor::new).localParallelism(1);
Vertex sink = dag.newVertex("sink", SinkProcessors.writeListP("sink"));
dag.edge(between(p, sink));
// When
jet.newJob(dag).join();
// Then
IStreamList<Object> list = jet.getList("sink");
assertEquals(singletonList(INJECTED_VALUE), list.subList(0, list.size()));
}
private static class MockManagedContext implements ManagedContext {
@Override
public Object initialize(Object obj) {
if (obj instanceof TestProcessor) {
return ((TestProcessor) obj).injectedValue = INJECTED_VALUE;
}
return obj;
}
}
private static class TestProcessor extends AbstractProcessor {
private String injectedValue;
@Override
public boolean complete() {
return tryEmit(injectedValue);
}
}
}