| /** |
| * 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.storm.blobstore; |
| |
| import java.util.List; |
| import java.util.Map; |
| import org.apache.storm.nimbus.NimbusInfo; |
| import org.junit.Test; |
| |
| import static org.mockito.Matchers.anyString; |
| import static org.mockito.Mockito.atLeastOnce; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.never; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| |
| public class BlobStoreUtilsTest { |
| |
| private static final String KEY = "key"; |
| private static final String BLOBSTORE_KEY = "/blobstore/" + KEY; |
| |
| @SuppressWarnings("unchecked") |
| private Map<String, Object> conf = (Map<String, Object>) mock(Map.class); |
| private MockZookeeperClientBuilder zkClientBuilder = new MockZookeeperClientBuilder(); |
| private BlobStore blobStore = mock(BlobStore.class); |
| private NimbusInfo nimbusDetails = mock(NimbusInfo.class); |
| |
| /** |
| * If nimbusDetails are null, the method returns without any Zookeeper calls. |
| */ |
| @Test |
| public void testUpdateKeyForBlobStore_nullNimbusInfo() { |
| BlobStoreUtils.updateKeyForBlobStore(conf, blobStore, zkClientBuilder.build(), KEY, null); |
| |
| zkClientBuilder.verifyExists(false); |
| zkClientBuilder.verifyGetChildren(false); |
| verify(nimbusDetails, never()).getHost(); |
| verify(conf, never()).get(anyString()); |
| } |
| |
| /** |
| * If the node doesn't exist, the method returns before attempting to fetch children. |
| */ |
| @Test |
| public void testUpdateKeyForBlobStore_missingNode() { |
| zkClientBuilder.withExists(BLOBSTORE_KEY, false); |
| BlobStoreUtils.updateKeyForBlobStore(conf, blobStore, zkClientBuilder.build(), KEY, nimbusDetails); |
| |
| zkClientBuilder.verifyExists(true); |
| zkClientBuilder.verifyGetChildren(false); |
| verify(nimbusDetails, never()).getHost(); |
| verify(conf, never()).get(anyString()); |
| } |
| |
| /** |
| * If the node has null children, the method will exit before calling downloadUpdatedBlob |
| * (the config map is first accessed by downloadUpdatedBlob). |
| */ |
| @Test |
| public void testUpdateKeyForBlobStore_nodeWithNullChildren() { |
| zkClientBuilder.withExists(BLOBSTORE_KEY, true); |
| zkClientBuilder.withGetChildren(BLOBSTORE_KEY, (List<String>) null); |
| BlobStoreUtils.updateKeyForBlobStore(conf, blobStore, zkClientBuilder.build(), KEY, nimbusDetails); |
| |
| zkClientBuilder.verifyExists(true); |
| zkClientBuilder.verifyGetChildren(); |
| verify(nimbusDetails, never()).getHost(); |
| verify(conf, never()).get(anyString()); |
| } |
| |
| /** |
| * If the node has no children, the method behaves the same as for null children. |
| */ |
| @Test |
| public void testUpdateKeyForBlobStore_nodeWithEmptyChildren() { |
| zkClientBuilder.withExists(BLOBSTORE_KEY, true); |
| zkClientBuilder.withGetChildren(BLOBSTORE_KEY); |
| BlobStoreUtils.updateKeyForBlobStore(conf, blobStore, zkClientBuilder.build(), KEY, nimbusDetails); |
| |
| zkClientBuilder.verifyExists(true); |
| zkClientBuilder.verifyGetChildren(); |
| verify(nimbusDetails, never()).getHost(); |
| verify(conf, never()).get(anyString()); |
| } |
| |
| /** |
| * If the node has children, their hostnames will be checked and if they match, |
| * downloadUpdatedBlob will not be called. |
| */ |
| @Test |
| public void testUpdateKeyForBlobStore_hostsMatch() { |
| zkClientBuilder.withExists(BLOBSTORE_KEY, true); |
| zkClientBuilder.withGetChildren(BLOBSTORE_KEY, "localhost:1111-1"); |
| when(nimbusDetails.getHost()).thenReturn("localhost"); |
| BlobStoreUtils.updateKeyForBlobStore(conf, blobStore, zkClientBuilder.build(), KEY, nimbusDetails); |
| |
| zkClientBuilder.verifyExists(true); |
| zkClientBuilder.verifyGetChildren(2); |
| verify(nimbusDetails).getHost(); |
| verify(conf, never()).get(anyString()); |
| } |
| |
| /** |
| * If the node has children, their hostnames will be checked and if they don't match, |
| * downloadUpdatedBlob will be called. |
| */ |
| @Test |
| public void testUpdateKeyForBlobStore_noMatch() { |
| zkClientBuilder.withExists(BLOBSTORE_KEY, true); |
| zkClientBuilder.withGetChildren(BLOBSTORE_KEY, "localhost:1111-1"); |
| when(nimbusDetails.getHost()).thenReturn("no match"); |
| BlobStoreUtils.updateKeyForBlobStore(conf, blobStore, zkClientBuilder.build(), KEY, nimbusDetails); |
| |
| zkClientBuilder.verifyExists(true); |
| zkClientBuilder.verifyGetChildren(2); |
| verify(nimbusDetails).getHost(); |
| verify(conf, atLeastOnce()).get(anyString()); |
| } |
| } |