/*
* Copyright 2013 the original author or authors.
*
* Licensed 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.springframework.yarn.am;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.sameInstance;
import static org.junit.Assert.assertThat;
import java.nio.ByteBuffer;
import org.apache.hadoop.yarn.api.records.Token;
import org.apache.hadoop.yarn.client.api.NMTokenCache;
import org.junit.Test;
import org.springframework.yarn.support.compat.NMTokenCacheCompat;
/**
* Tests for Hadoops {@code NMTokenCache}. At a time writing this test hadoop
* vanilla 2.2.0 GA is using static methods in this class, however cloudera
* with 2.2.0-cdh5.0.0-beta-1 correctly modified this class with singleton
* pattern and removed other static methods. This class makes sure
* we work around this correctly.
*
* @author Janne Valkealahti
*
*/
public class NMTokenCacheTests {
@SuppressWarnings("static-access")
@Test
public void testTokenCacheGenericUsage() {
// cdh
// static org.apache.hadoop.yarn.client.api.NMTokenCache.getSingleton()
// void org.apache.hadoop.yarn.client.api.NMTokenCache.setNMToken(String, Token)
// vanilla
// static void org.apache.hadoop.yarn.client.api.NMTokenCache.setNMToken(String, Token)
NMTokenCache cache1 = NMTokenCacheCompat.getNMTokenCache();
NMTokenCache cache2 = NMTokenCacheCompat.getNMTokenCache();
cache1.setNMToken("nodeAddr1", new TestToken("kind1"));
cache2.setNMToken("nodeAddr2", new TestToken("kind2"));
assertThat(cache1.getNMToken("nodeAddr1").getKind(), is("kind1"));
assertThat(cache2.getNMToken("nodeAddr1").getKind(), is("kind1"));
assertThat(cache1.getNMToken("nodeAddr2").getKind(), is("kind2"));
assertThat(cache2.getNMToken("nodeAddr2").getKind(), is("kind2"));
assertThat(cache1, sameInstance(cache2));
assertThat(NMTokenCacheCompat.getNMTokenCache(), sameInstance(NMTokenCacheCompat.getNMTokenCache()));
}
private static class TestToken extends Token {
String kind;
public TestToken(String kind) {
this.kind = kind;
}
@Override
public ByteBuffer getIdentifier() {
return null;
}
@Override
public void setIdentifier(ByteBuffer identifier) {
}
@Override
public ByteBuffer getPassword() {
return null;
}
@Override
public void setPassword(ByteBuffer password) {
}
@Override
public String getKind() {
return kind;
}
@Override
public void setKind(String kind) {
this.kind = kind;
}
@Override
public String getService() {
return null;
}
@Override
public void setService(String service) {
}
}
}