Java tutorial
/* * Licensed to Elasticsearch under one or more contributor * license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright * ownership. Elasticsearch 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.elasticsearch.client; import org.apache.http.HttpHost; import org.elasticsearch.client.Node.Roles; import java.util.ArrayList; import java.util.Collections; import java.util.List; import static org.junit.Assert.assertEquals; public class NodeSelectorTests extends RestClientTestCase { public void testAny() { List<Node> nodes = new ArrayList<>(); int size = between(2, 5); for (int i = 0; i < size; i++) { nodes.add(dummyNode(randomBoolean(), randomBoolean(), randomBoolean())); } List<Node> expected = new ArrayList<>(nodes); NodeSelector.ANY.select(nodes); assertEquals(expected, nodes); } public void testNotMasterOnly() { Node masterOnly = dummyNode(true, false, false); Node all = dummyNode(true, true, true); Node masterAndData = dummyNode(true, true, false); Node masterAndIngest = dummyNode(true, false, true); Node coordinatingOnly = dummyNode(false, false, false); Node ingestOnly = dummyNode(false, false, true); Node data = dummyNode(false, true, randomBoolean()); List<Node> nodes = new ArrayList<>(); nodes.add(masterOnly); nodes.add(all); nodes.add(masterAndData); nodes.add(masterAndIngest); nodes.add(coordinatingOnly); nodes.add(ingestOnly); nodes.add(data); Collections.shuffle(nodes, getRandom()); List<Node> expected = new ArrayList<>(nodes); expected.remove(masterOnly); NodeSelector.SKIP_DEDICATED_MASTERS.select(nodes); assertEquals(expected, nodes); } private static Node dummyNode(boolean master, boolean data, boolean ingest) { return new Node(new HttpHost("dummy"), Collections.<HttpHost>emptySet(), randomAsciiAlphanumOfLength(5), randomAsciiAlphanumOfLength(5), new Roles(master, data, ingest), Collections.<String, List<String>>emptyMap()); } }