org.apache.tez.common.security.TestTokenCache.java Source code

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Here is the source code for org.apache.tez.common.security.TestTokenCache.java

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/**
 * 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.tez.common.security;

import static org.mockito.Matchers.any;
import static org.mockito.Mockito.when;

import java.io.IOException;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FileSystemTestHelper.MockFileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.security.Credentials;
import org.apache.hadoop.security.token.Token;
import org.apache.hadoop.security.token.TokenIdentifier;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;

public class TestTokenCache {

    private static Configuration conf;

    private static String renewer;

    @BeforeClass
    public static void setup() throws Exception {
        conf = new Configuration();
        conf.set(YarnConfiguration.RM_PRINCIPAL, "mapred/host@REALM");
        renewer = Master.getMasterPrincipal(conf);
    }

    @Test(timeout = 5000)
    @SuppressWarnings("deprecation")
    public void testBinaryCredentials() throws Exception {
        String binaryTokenFile = null;
        try {
            Path TEST_ROOT_DIR = new Path("target");
            binaryTokenFile = FileSystem.getLocal(conf).makeQualified(new Path(TEST_ROOT_DIR, "tokenFile")).toUri()
                    .getPath();

            MockFileSystem fs1 = createFileSystemForServiceName("service1");
            MockFileSystem fs2 = createFileSystemForServiceName("service2");
            MockFileSystem fs3 = createFileSystemForServiceName("service3");

            // get the tokens for fs1 & fs2 and write out to binary creds file
            Credentials creds = new Credentials();
            Token<?> token1 = fs1.getDelegationToken(renewer);
            Token<?> token2 = fs2.getDelegationToken(renewer);
            creds.addToken(token1.getService(), token1);
            creds.addToken(token2.getService(), token2);
            creds.writeTokenStorageFile(new Path(binaryTokenFile), conf);

            Credentials newCreds = new Credentials();
            TokenCache.mergeBinaryTokens(newCreds, conf, binaryTokenFile);

            Assert.assertTrue(newCreds.getAllTokens().size() > 0);
            checkTokens(creds, newCreds);
        } finally {
            if (binaryTokenFile != null) {
                try {
                    FileSystem.getLocal(conf).delete(new Path(binaryTokenFile));
                } catch (IOException e) {
                    // Ignore
                }
            }
        }
    }

    private MockFileSystem createFileSystemForServiceName(final String service) throws IOException {
        MockFileSystem mockFs = new MockFileSystem();
        when(mockFs.getCanonicalServiceName()).thenReturn(service);
        when(mockFs.getDelegationToken(any(String.class))).thenAnswer(new Answer<Token<?>>() {
            int unique = 0;

            @Override
            public Token<?> answer(InvocationOnMock invocation) throws Throwable {
                Token<?> token = new Token<TokenIdentifier>();
                token.setService(new Text(service));
                // use unique value so when we restore from token storage, we can
                // tell if it's really the same token
                token.setKind(new Text("token" + unique++));
                return token;
            }
        });
        return mockFs;
    }

    private void checkTokens(Credentials creds, Credentials newCreds) {
        Assert.assertEquals(creds.getAllTokens().size(), newCreds.getAllTokens().size());
        for (Token<?> token : newCreds.getAllTokens()) {
            Token<?> credsToken = creds.getToken(token.getService());
            Assert.assertTrue(credsToken != null);
            Assert.assertEquals(token, credsToken);
        }
    }

}