com.google.cloud.hadoop.util.HadoopToStringUtil.java Source code

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Here is the source code for com.google.cloud.hadoop.util.HadoopToStringUtil.java

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/**
 * Copyright 2014 Google Inc. All Rights Reserved.
 *
 *  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 com.google.cloud.hadoop.util;

import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import org.apache.hadoop.mapreduce.InputSplit;
import org.apache.hadoop.mapreduce.JobContext;
import org.apache.hadoop.mapreduce.TaskAttemptContext;

/**
 * strings for org.apache.hadoop.mapreduce objects
 */
public class HadoopToStringUtil {

    public static String toString(InputSplit input) throws IOException, InterruptedException {
        if (input == null) {
            return "null";
        }

        String result = "InputSplit::";
        result += " length:" + input.getLength();
        result += " locations: " + Arrays.toString(input.getLocations());
        result += " toString(): " + input.toString();
        return result;
    }

    public static String toString(List<InputSplit> input) throws IOException, InterruptedException {
        if (input == null) {
            return "null";
        }

        String result = "List<InputSplit>::";
        result += " size:" + input.size() + " elements: [";
        for (InputSplit is : input) {
            result += toString(is) + ", ";
        }
        result += "]";
        return result;
    }

    public static String toString(TaskAttemptContext input) {
        if (input == null) {
            return "null";
        }

        String result = "TaskAttemptContext::";
        result += " TaskAttemptID:" + input.getTaskAttemptID();
        result += " Status:" + input.getStatus();
        return result;
    }

    public static String toString(JobContext input) {
        if (input == null) {
            return "null";
        }

        String result = "JobContext::";
        result += " JobName:" + input.getJobName();
        result += " Jar:" + input.getJar();
        return result;
    }

}