brooklyn-server/camp/camp-brooklyn/src/test/java/org/apache/brooklyn/camp/brooklyn/ApplicationsYamlTest.java

/*
 * 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.brooklyn.camp.brooklyn;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNull;
import static org.testng.Assert.assertTrue;

import org.apache.brooklyn.api.entity.Application;
import org.apache.brooklyn.api.entity.Entity;
import org.apache.brooklyn.camp.brooklyn.TestSensorAndEffectorInitializer.TestConfigurableInitializer;
import org.apache.brooklyn.core.mgmt.EntityManagementUtils;
import org.apache.brooklyn.core.mgmt.internal.LocalManagementContext;
import org.apache.brooklyn.core.test.entity.LocalManagementContextForTests;
import org.apache.brooklyn.core.test.policy.TestEnricher;
import org.apache.brooklyn.core.test.policy.TestPolicy;
import org.apache.brooklyn.entity.stock.BasicApplication;
import org.apache.brooklyn.entity.stock.BasicEntity;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.annotations.Test;

import com.google.common.collect.Iterables;

@Test
public class ApplicationsYamlTest extends AbstractYamlTest {
    private static final Logger log = LoggerFactory.getLogger(ApplicationsYamlTest.class);

    @Override
    protected LocalManagementContext newTestManagementContext() {
        // Don't need osgi
        return LocalManagementContextForTests.newInstance();
    }

    @Test
    public void testWrapsEntity() throws Exception {
        Entity app = createAndStartApplication(
                "services:",
                "- type: " + BasicEntity.class.getName());
        assertWrapped(app, BasicEntity.class);
    }

    @Test
    public void testWrapsMultipleApps() throws Exception {
        Entity app = createAndStartApplication(
                "services:",
                "- type: " + BasicApplication.class.getName(),
                "- type: " + BasicApplication.class.getName());
        assertTrue(app.getConfig(EntityManagementUtils.WRAPPER_APP_MARKER));
        assertTrue(app instanceof BasicApplication);
        assertEquals(app.getChildren().size(), 2);
    }

    @Test
    public void testWrapsWhenEnrichers() throws Exception {
        Entity app = createAndStartApplication(
                "brooklyn.enrichers:",
                "- type: " + TestEnricher.class.getName(),
                "services:",
                "- type: " + BasicApplication.class.getName());
        assertWrapped(app, BasicApplication.class);
    }

    @Test
    public void testWrapsWhenPolicy() throws Exception {
        Entity app = createAndStartApplication(
                "brooklyn.policies:",
                "- type: " + TestPolicy.class.getName(),
                "services:",
                "- type: " + BasicApplication.class.getName());
        assertWrapped(app, BasicApplication.class);
    }

    @Test
    public void testWrapsWhenInitializer() throws Exception {
        Entity app = createAndStartApplication(
                "brooklyn.initializers:",
                "- type: " + TestConfigurableInitializer.class.getName(),
                "services:",
                "- type: " + BasicApplication.class.getName());
        assertWrapped(app, BasicApplication.class);
    }

    @Test
    public void testWrapsAppIfForced() throws Exception {
        Entity app = createAndStartApplication(
                "wrappedApp: true",
                "services:",
                "- type: " + BasicApplication.class.getName());
        assertWrapped(app, BasicApplication.class);
    }

    @Test
    public void testDoesNotWrapApp() throws Exception {
        Entity app = createAndStartApplication(
                "services:",
                "- type: " + BasicApplication.class.getName());
        assertDoesNotWrap(app, BasicApplication.class, null);
    }

    @Test
    public void testDoesNotWrapAppIfUnforced() throws Exception {
        Entity app = createAndStartApplication(
                "wrappedApp: false",
                "services:",
                "- type: " + BasicApplication.class.getName());
        assertDoesNotWrap(app, BasicApplication.class, null);
    }
    
    @Test
    public void testDoesNotWrapEntityIfDifferentTopLevelName() throws Exception {
        Entity app = createAndStartApplication(
                "name: topLevel",
                "services:",
                "- type: " + BasicApplication.class.getName(),
                "  name: bottomLevel");
        assertDoesNotWrap(app, BasicApplication.class, "topLevel");
    }

    @Test
    public void testDoesNotWrapsEntityIfNoNameOnService() throws Exception {
        Entity app = createAndStartApplication(
                "name: topLevel",
                "services:",
                "- type: " + BasicApplication.class.getName());
        assertDoesNotWrap(app, BasicApplication.class, "topLevel");
    }

    @Test
    public void testDoesNotWrapCatalogItemWithDisplayName() throws Exception {
        addCatalogItems(
                "brooklyn.catalog:",
                "  id: simple",
                "  version: " + TEST_VERSION,
                "  displayName: catalogLevel",
                "  item:",
                "    services:",
                "    - type: " + BasicApplication.class.getName());
        Entity app = createAndStartApplication(
                "name: topLevel",
                "services:",
                "- type: simple:" + TEST_VERSION);
        assertDoesNotWrap(app, BasicApplication.class, "topLevel");
    }

    @Test
    public void testDoesNotWrapCatalogItemWithServiceName() throws Exception {
        addCatalogItems(
                "brooklyn.catalog:",
                "  id: simple",
                "  version: " + TEST_VERSION,
                "  displayName: catalogLevel",
                "  item:",
                "    services:",
                "    - type: " + BasicApplication.class.getName(),
                "      defaultDisplayName: defaultServiceName",
                "      displayName: explicitServiceName");
        Entity app = createAndStartApplication(
                "name: topLevel",
                "services:",
                "- type: simple:" + TEST_VERSION);
        assertDoesNotWrap(app, BasicApplication.class, "topLevel");
    }

    @Test
    public void testDoesNotWrapCatalogItemAndOverridesName() throws Exception {
        addCatalogItems(
                "brooklyn.catalog:",
                "  id: simple",
                "  version: " + TEST_VERSION,
                "  displayName: catalogLevel",
                "  item:",
                "    services:",
                "    - type: " + BasicApplication.class.getName());
        Entity app = createAndStartApplication(
                "services:",
                "- type: simple:" + TEST_VERSION,
                "  name: serviceLevel");
        assertDoesNotWrap(app, BasicApplication.class, "serviceLevel");
    }

    @Test
    public void testDoesNotWrapCatalogItemAndUsesCatalogName() throws Exception {
        addCatalogItems(
                "brooklyn.catalog:",
                "  id: simple",
                "  version: " + TEST_VERSION,
                "  displayName: catalogLevel",
                "  item:",
                "    services:",
                "    - type: " + BasicApplication.class.getName());
        Entity app = createAndStartApplication(
                "services:",
                "- type: simple:" + TEST_VERSION);
        assertDoesNotWrap(app, BasicApplication.class, "catalogLevel");
    }

    @Test
    public void testDoesNotWrapCatalogItemAndUsesCatalogServiceName() throws Exception {
        addCatalogItems(
                "brooklyn.catalog:",
                "  id: simple",
                "  version: " + TEST_VERSION,
                "  displayName: catalogLevel",
                "  item:",
                "    services:",
                "    - type: " + BasicApplication.class.getName(),
                "      name: catalogServiceLevel");
        Entity app = createAndStartApplication(
                "services:",
                "- type: simple:" + TEST_VERSION);
        assertDoesNotWrap(app, BasicApplication.class, "catalogServiceLevel");
    }

    @Override
    protected Logger getLogger() {
        return log;
    }

    private void assertWrapped(Entity app, Class<? extends Entity> wrappedEntityType) {
        assertTrue(app.getConfig(EntityManagementUtils.WRAPPER_APP_MARKER));
        assertTrue(app instanceof BasicApplication);
        Entity child = Iterables.getOnlyElement(app.getChildren());
        assertTrue(wrappedEntityType.isInstance(child));
        assertTrue(child.getChildren().isEmpty());
    }

    private void assertDoesNotWrap(Entity app, Class<? extends Application> entityType, String displayName) {
        assertNull(app.getConfig(EntityManagementUtils.WRAPPER_APP_MARKER));
        assertTrue(entityType.isInstance(app));
        if (displayName != null) {
            assertEquals(app.getDisplayName(), displayName);
        }
        assertEquals(app.getChildren().size(), 0);
    }
    
}