| /** |
| * 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.ambari.server.controller.internal; |
| |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.ambari.server.controller.spi.Request; |
| import org.apache.ambari.server.controller.spi.Resource; |
| import org.apache.ambari.server.controller.utilities.PropertyHelper; |
| import org.apache.ambari.server.controller.utilities.StreamProvider; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class HttpPropertyProviderTest { |
| private static final String PROPERTY_ID_CLUSTER_NAME = PropertyHelper.getPropertyId("HostRoles", "cluster_name"); |
| private static final String PROPERTY_ID_HOST_NAME = PropertyHelper.getPropertyId("HostRoles", "host_name"); |
| private static final String PROPERTY_ID_COMPONENT_NAME = PropertyHelper.getPropertyId("HostRoles", "component_name"); |
| |
| private static final String PROPERTY_ID_NAGIOS_ALERTS = PropertyHelper.getPropertyId("HostRoles", "nagios_alerts"); |
| |
| @Test |
| public void testReadNagiosServer() throws Exception { |
| |
| Resource resource = doPopulate("NAGIOS_SERVER", Collections.<String>emptySet()); |
| |
| Assert.assertNotNull("Expected non-null for 'nagios_alerts'", |
| resource.getPropertyValue(PROPERTY_ID_NAGIOS_ALERTS)); |
| } |
| |
| @Test |
| public void testReadNotRequested() throws Exception { |
| |
| Set<String> propertyIds = new HashSet<String>(); |
| propertyIds.add(PropertyHelper.getPropertyId("HostRoles", "state")); |
| propertyIds.add(PROPERTY_ID_COMPONENT_NAME); |
| |
| Resource resource = doPopulate("NAGIOS_SERVER", propertyIds); |
| |
| Assert.assertNull("Expected null for 'nagios_alerts'", |
| resource.getPropertyValue(PROPERTY_ID_NAGIOS_ALERTS)); |
| } |
| |
| @Test |
| public void testReadWithRequested() throws Exception { |
| |
| Set<String> propertyIds = new HashSet<String>(); |
| propertyIds.add(PropertyHelper.getPropertyId("HostRoles", "nagios_alerts")); |
| propertyIds.add(PROPERTY_ID_COMPONENT_NAME); |
| |
| Resource resource = doPopulate("NAGIOS_SERVER", propertyIds); |
| |
| Assert.assertNotNull("Expected non-null for 'nagios_alerts'", |
| resource.getPropertyValue(PROPERTY_ID_NAGIOS_ALERTS)); |
| } |
| |
| @Test |
| public void testReadWithRequestedFail() throws Exception { |
| |
| Set<String> propertyIds = new HashSet<String>(); |
| propertyIds.add(PropertyHelper.getPropertyId("HostRoles", "nagios_alerts")); |
| propertyIds.add(PROPERTY_ID_COMPONENT_NAME); |
| |
| Resource resource = doPopulate("NAGIOS_SERVER", propertyIds, true); |
| |
| Assert.assertNull("Expected null for 'nagios_alerts'", |
| resource.getPropertyValue(PROPERTY_ID_NAGIOS_ALERTS)); |
| } |
| |
| @SuppressWarnings("rawtypes") |
| @Test |
| public void testReadWithRequestedJson() throws Exception { |
| |
| Set<String> propertyIds = new HashSet<String>(); |
| propertyIds.add(PropertyHelper.getPropertyId("HostRoles", "nagios_alerts")); |
| propertyIds.add(PROPERTY_ID_COMPONENT_NAME); |
| Resource resource = doPopulate("NAGIOS_SERVER", propertyIds); |
| Object propertyValue = resource.getPropertyValue(PROPERTY_ID_NAGIOS_ALERTS); |
| |
| Assert.assertNotNull("Expected non-null for 'nagios_alerts'", propertyValue); |
| Assert.assertTrue("Expected Map for parsed JSON", propertyValue instanceof Map); |
| |
| Object alertsEntry = ((Map) propertyValue).get("alerts"); |
| Object hostcountsEntry = ((Map) propertyValue).get("hostcounts"); |
| |
| Assert.assertNotNull("Expected non-null for 'alerts' entry", alertsEntry); |
| Assert.assertNotNull("Expected non-null for 'hostcounts' entry", hostcountsEntry); |
| Assert.assertTrue("Expected List type for 'alerts' entry", alertsEntry instanceof List); |
| Assert.assertTrue("Expected Map type for 'hostcounts' entry", hostcountsEntry instanceof Map); |
| |
| List alertsList = (List) alertsEntry; |
| Map hostcountsMap = (Map) hostcountsEntry; |
| |
| Assert.assertEquals("Expected number of entries in 'alerts' is 1", 1, alertsList.size()); |
| Assert.assertTrue("Expected Map type for 'alerts' element", alertsList.get(0) instanceof Map); |
| Assert.assertEquals("Body", ((Map) alertsList.get(0)).get("Alert Body")); |
| |
| Assert.assertEquals("Expected number of entries in 'hostcounts' is 2", 2, hostcountsMap.size()); |
| Assert.assertEquals("1", hostcountsMap.get("up_hosts")); |
| Assert.assertEquals("0", hostcountsMap.get("down_hosts")); |
| } |
| |
| @Test |
| public void testReadGangliaServer() throws Exception { |
| |
| Resource resource = doPopulate("GANGLIA_SERVER", Collections.<String>emptySet()); |
| |
| // !!! GANGLIA_SERVER has no current http lookup |
| Assert.assertNull("Expected null, was: " + |
| resource.getPropertyValue(PROPERTY_ID_NAGIOS_ALERTS), |
| resource.getPropertyValue(PROPERTY_ID_NAGIOS_ALERTS)); |
| } |
| |
| private Resource doPopulate(String componentName, Set<String> requestProperties) throws Exception { |
| return doPopulate(componentName, requestProperties, false); |
| } |
| |
| private Resource doPopulate(String componentName, |
| Set<String> requestProperties, boolean throwException) throws Exception { |
| |
| HttpProxyPropertyProvider propProvider = new HttpProxyPropertyProvider( |
| new TestStreamProvider(throwException), |
| PROPERTY_ID_CLUSTER_NAME, |
| PROPERTY_ID_HOST_NAME, |
| PROPERTY_ID_COMPONENT_NAME); |
| |
| Resource resource = new ResourceImpl(Resource.Type.HostComponent); |
| |
| resource.setProperty(PROPERTY_ID_HOST_NAME, "ec2-54-234-33-50.compute-1.amazonaws.com"); |
| resource.setProperty(PROPERTY_ID_COMPONENT_NAME, componentName); |
| |
| Request request = PropertyHelper.getReadRequest(requestProperties); |
| |
| propProvider.populateResources(Collections.singleton(resource), request, null); |
| |
| return resource; |
| } |
| |
| private static class TestStreamProvider implements StreamProvider { |
| private boolean throwError = false; |
| |
| private TestStreamProvider(boolean throwErr) { |
| throwError = throwErr; |
| } |
| |
| @Override |
| public InputStream readFrom(String spec) throws IOException { |
| if (throwError) { |
| throw new IOException("Fake error"); |
| } |
| |
| String responseStr = "{\"alerts\": [{\"Alert Body\": \"Body\"}]," |
| + " \"hostcounts\": {\"up_hosts\":\"1\", \"down_hosts\":\"0\"}}"; |
| return new ByteArrayInputStream(responseStr.getBytes("UTF-8")); |
| } |
| } |
| |
| } |