| /* |
| * 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.gossip; |
| |
| import com.codahale.metrics.MetricRegistry; |
| import org.apache.log4j.Logger; |
| |
| import org.junit.jupiter.api.Test; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.UUID; |
| import org.junit.platform.runner.JUnitPlatform; |
| import org.junit.runner.RunWith; |
| |
| /** |
| * Tests support of using {@code StartupSettings} and thereby reading |
| * setup config from file. |
| */ |
| @RunWith(JUnitPlatform.class) |
| public class StartupSettingsTest { |
| private static final Logger log = Logger.getLogger( StartupSettingsTest.class ); |
| private static final String CLUSTER = UUID.randomUUID().toString(); |
| |
| @Test |
| public void testUsingSettingsFile() throws IOException, InterruptedException, URISyntaxException { |
| File settingsFile = File.createTempFile("gossipTest",".json"); |
| settingsFile.deleteOnExit(); |
| writeSettingsFile(settingsFile); |
| URI uri = new URI("udp://" + "127.0.0.1" + ":" + 50000); |
| final GossipService firstService = new GossipService( |
| CLUSTER, uri, "1", new HashMap<String, String>(), |
| new ArrayList<GossipMember>(), new GossipSettings(), null, new MetricRegistry()); |
| firstService.start(); |
| final GossipService serviceUnderTest = new GossipService( |
| StartupSettings.fromJSONFile(settingsFile)); |
| serviceUnderTest.start(); |
| firstService.shutdown(); |
| serviceUnderTest.shutdown(); |
| } |
| |
| private void writeSettingsFile( File target ) throws IOException { |
| String settings = |
| "[{\n" + // It is odd that this is meant to be in an array, but oh well. |
| " \"cluster\":\"" + CLUSTER + "\",\n" + |
| " \"id\":\"" + "2" + "\",\n" + |
| " \"uri\":\"udp://127.0.0.1:50001\",\n" + |
| " \"gossip_interval\":1000,\n" + |
| " \"window_size\":1000,\n" + |
| " \"minimum_samples\":5,\n" + |
| " \"cleanup_interval\":10000,\n" + |
| " \"convict_threshold\":2.6,\n" + |
| " \"distribution\":\"exponential\",\n" + |
| " \"properties\":{},\n" + |
| " \"members\":[\n" + |
| " {\"cluster\": \"" + CLUSTER + "\",\"uri\":\"udp://127.0.0.1:5000\"}\n" + |
| " ]\n" + |
| "}]"; |
| |
| log.info( "Using settings file with contents of:\n---\n" + settings + "\n---" ); |
| FileOutputStream output = new FileOutputStream(target); |
| output.write(settings.getBytes()); |
| output.close(); |
| } |
| } |