com.splunk.shuttl.archiver.util.UtilsBucket.java Source code

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Here is the source code for com.splunk.shuttl.archiver.util.UtilsBucket.java

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// Copyright (C) 2011 Splunk Inc.
//
// Splunk 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.splunk.shuttl.archiver.util;

import java.io.File;

import org.apache.commons.io.FilenameUtils;

import com.splunk.shuttl.archiver.importexport.csv.NoCsvFileFoundException;
import com.splunk.shuttl.archiver.model.Bucket;

/**
 * Util functions for {@link Bucket}s.
 */
public class UtilsBucket {

    /**
     * @return the csv {@link File} representing the bucket
     * @throws {@link NoCsvFileFoundException} when no csv file was found.
     */
    public static File getCsvFile(Bucket csvBucket) {
        if (isBucketEmpty(csvBucket))
            throw new IllegalArgumentException("Bucket was empty!");
        else
            return getTheCsvFileFromBucket(csvBucket);
    }

    private static boolean isBucketEmpty(Bucket csvBucket) {
        return csvBucket.getDirectory().listFiles().length == 0;
    }

    private static File getTheCsvFileFromBucket(Bucket csvBucket) {
        for (File file : csvBucket.getDirectory().listFiles())
            if (FilenameUtils.getExtension(file.getName()).equals("csv"))
                return file;
        throw new NoCsvFileFoundException();
    }

}