com.inmobi.messaging.consumer.util.DatabusUtil.java Source code

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Here is the source code for com.inmobi.messaging.consumer.util.DatabusUtil.java

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package com.inmobi.messaging.consumer.util;

/*
 * #%L
 * messaging-client-databus
 * %%
 * Copyright (C) 2012 - 2014 InMobi
 * %%
 * 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.
 * #L%
 */

import java.nio.ByteBuffer;

import org.apache.commons.codec.binary.Base64;
import org.apache.hadoop.fs.Path;

import com.inmobi.messaging.Message;
import com.inmobi.messaging.consumer.databus.StreamType;
import com.inmobi.messaging.util.AuditUtil;

public class DatabusUtil {
    public static Path getStreamDir(StreamType streamType, Path databusRootDir, String streamName) {
        return new Path(getBaseDir(streamType, databusRootDir), streamName);
    }

    public static Path getCollectorStreamDir(Path databusRootDir, String streamName, String collectorName) {
        return new Path(getStreamDir(StreamType.COLLECTOR, databusRootDir, streamName), collectorName);
    }

    public static Path getBaseDir(StreamType streamType, Path databusRootDir) {
        Path baseDir;
        switch (streamType) {
        case COLLECTOR:
            baseDir = new Path(databusRootDir, "data");
            break;
        case LOCAL:
            baseDir = new Path(databusRootDir, "streams_local");
            break;
        case MERGED:
            baseDir = new Path(databusRootDir, "streams");
            break;
        default:
            throw new IllegalArgumentException("Invalid type" + streamType);
        }
        return baseDir;
    }

    public static Message decodeMessage(byte[] line) {
        return new Message(decodeByteBuffer(line));
    }

    public static void decodeMessage(byte[] line, Message msg) {
        msg.set(decodeByteBuffer(line));
    }

    private static ByteBuffer decodeByteBuffer(byte[] line) {
        byte[] data = Base64.decodeBase64(line);
        return AuditUtil.removeHeader(data);

    }

}