org.apache.slider.server.services.workflow.TestWorkflowCompositeService.java Source code

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Here is the source code for org.apache.slider.server.services.workflow.TestWorkflowCompositeService.java

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/*
 * 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.slider.server.services.workflow;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.service.Service;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class TestWorkflowCompositeService extends ParentWorkflowTestBase {
    private static final Logger log = LoggerFactory.getLogger(TestWorkflowCompositeService.class);

    @Test
    public void testSingleChild() throws Throwable {
        Service parent = startService(new MockService());
        parent.stop();
    }

    @Test
    public void testSingleChildTerminating() throws Throwable {
        ServiceParent parent = startService(new MockService("1", false, 100));
        waitForParentToStop(parent);
    }

    @Test
    public void testSingleChildFailing() throws Throwable {
        ServiceParent parent = startService(new MockService("1", true, 100));
        waitForParentToStop(parent);
        assert parent.getFailureCause() != null;
    }

    @Test
    public void testTwoChildren() throws Throwable {
        MockService one = new MockService("one", false, 100);
        MockService two = new MockService("two", false, 100);
        ServiceParent parent = startService(one, two);
        waitForParentToStop(parent);
        assertStopped(one);
        assertStopped(two);
    }

    @Test
    public void testCallableChild() throws Throwable {

        MockService one = new MockService("one", false, 100);
        CallableHandler handler = new CallableHandler("hello");
        WorkflowCallbackService<String> ens = new WorkflowCallbackService<String>("handler", handler, 100, true);
        MockService two = new MockService("two", false, 100);
        ServiceParent parent = startService(one, ens, two);
        waitForParentToStop(parent);
        assertStopped(one);
        assertStopped(ens);
        assertStopped(two);
        assertTrue(handler.notified);
        String s = ens.getScheduledFuture().get();
        assertEquals("hello", s);
    }

    @Test
    public void testNestedComposite() throws Throwable {
        MockService one = new MockService("one", false, 100);
        MockService two = new MockService("two", false, 100);
        ServiceParent parent = buildService(one, two);
        ServiceParent outer = startService(parent);
        assertTrue(outer.waitForServiceToStop(1000));
        assertStopped(one);
        assertStopped(two);
    }

    @Test
    public void testFailingComposite() throws Throwable {
        MockService one = new MockService("one", true, 10);
        MockService two = new MockService("two", false, 1000);
        ServiceParent parent = startService(one, two);
        waitForParentToStop(parent);
        assertStopped(one);
        assertStopped(two);
        assertNotNull(one.getFailureCause());
        assertNotNull(parent.getFailureCause());
        assertEquals(one.getFailureCause(), parent.getFailureCause());
    }

    @Override
    public ServiceParent buildService(Service... services) {
        ServiceParent parent = new WorkflowCompositeService("test", services);
        parent.init(new Configuration());
        return parent;
    }

}