com.cloudera.flume.core.TestDigestDecorator.java Source code

Introduction

Here is the source code for com.cloudera.flume.core.TestDigestDecorator.java

Source

/**
 * Licensed to Cloudera, Inc. under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  Cloudera, Inc. 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 com.cloudera.flume.core;

import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.fail;

import java.io.IOException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import org.apache.commons.codec.binary.Base64;

import org.junit.Test;

import com.cloudera.flume.conf.Context;
import com.cloudera.flume.conf.FlumeSpecException;
import com.cloudera.flume.handlers.debug.MemorySinkSource;

/**
 * This tests the DigestDecorator.
 */
public class TestDigestDecorator {

    /**
     * A helper function used by most of the tests here to reduce
     * boilerplate.
     */
    private void helpTestDigest(String algorithm, boolean encodeBase64) throws IOException, InterruptedException {
        MemorySinkSource mem = new MemorySinkSource();
        EventSink dig = new DigestDecorator<EventSink>(mem, algorithm, "digest", encodeBase64);

        Event e = new EventImpl("content".getBytes());

        dig.open();
        dig.append(e);
        dig.close();

        mem.open();
        Event e2 = mem.next();
        byte digest[] = e2.get("digest");
        if (encodeBase64) {
            digest = Base64.decodeBase64(digest);
        }
        try {
            MessageDigest stomach = MessageDigest.getInstance(algorithm);
            stomach.update("content".getBytes());
            assertArrayEquals(stomach.digest(), digest);
        } catch (NoSuchAlgorithmException ex) {
            fail("Invalid algorithm supplied: " + algorithm);
        }
    }

    @Test
    public void testDigestMD5() throws IOException, InterruptedException {
        helpTestDigest("MD5", false);
    }

    @Test
    public void testDigestMD5Base64() throws IOException, InterruptedException {
        helpTestDigest("MD5", true);
    }

    @Test
    public void testDigestSHA1() throws IOException, InterruptedException {
        helpTestDigest("SHA-1", false);
    }

    @Test
    public void testDigestSHA1Base64() throws IOException, InterruptedException {
        helpTestDigest("SHA-1", true);
    }

    @Test
    public void testDigestSHA512() throws IOException, InterruptedException {
        helpTestDigest("SHA-512", false);
    }

    @Test
    public void testDigestSHA512Base64() throws IOException, InterruptedException {
        helpTestDigest("SHA-512", true);
    }

    /**
     * Successful if no exceptions thrown.
     */
    @Test
    public void testDigestBuilder() throws IOException, FlumeSpecException, InterruptedException {
        EventSink snk = new CompositeSink(new Context(), "{ digest(\"MD5\", \"digest\") => counter(\"count\") }");
        snk.open();
        Event e = new EventImpl("content".getBytes());
        snk.append(e);
        snk.close();
    }

    /**
     * Successful if no exceptions thrown.
     */
    @Test
    public void testDigestBuilderBase64() throws IOException, FlumeSpecException, InterruptedException {
        EventSink snk = new CompositeSink(new Context(),
                "{ digest(\"MD5\", \"digest\", base64=\"true\") => counter(\"count\") }");
        snk.open();
        Event e = new EventImpl("content".getBytes());
        snk.append(e);
        snk.close();
    }

    /**
     * Successful if no exceptions thrown.
     */
    @Test(expected = FlumeSpecException.class)
    public void testDigestBuilderInvalidAlgorithm() throws IOException, FlumeSpecException, InterruptedException {
        EventSink snk = new CompositeSink(new Context(),
                "{ digest(\"INVALID\", \"digest\") => counter(\"count\") }");
    }
}