gobblin.data.management.copy.CopyableFileUtils.java Source code

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Here is the source code for gobblin.data.management.copy.CopyableFileUtils.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 gobblin.data.management.copy;

import java.io.IOException;

import org.apache.commons.lang.RandomStringUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;

import com.google.common.collect.Maps;

/**
 * Utils class to generate dummy {@link CopyableFile}s for testing. Random strings are generated for null paths.
 */
public class CopyableFileUtils {

    public static CopyableFile createTestCopyableFile(String resourcePath) throws IOException {
        FileSystem fs = FileSystem.getLocal(new Configuration());
        fs.create(new Path(resourcePath));

        FileStatus status = new FileStatus(0l, false, 0, 0l, 0l, new Path(resourcePath));

        return new CopyableFile(status, new Path(getRandomPath()), null, null, null,
                PreserveAttributes.fromMnemonicString(""), "", 0, 0, Maps.<String, String>newHashMap());
    }

    public static CopyableFile getTestCopyableFile() {
        return getTestCopyableFile(null, null);
    }

    public static CopyableFile getTestCopyableFile(String resourcePath) {
        return getTestCopyableFile(resourcePath, null);
    }

    public static CopyableFile getTestCopyableFile(OwnerAndPermission ownerAndPermission) {
        return getTestCopyableFile(null, null, ownerAndPermission);
    }

    public static CopyableFile getTestCopyableFile(String resourcePath, OwnerAndPermission ownerAndPermission) {
        return getTestCopyableFile(resourcePath, null, ownerAndPermission);
    }

    public static CopyableFile getTestCopyableFile(String resourcePath, String relativePath,
            OwnerAndPermission ownerAndPermission) {
        return getTestCopyableFile(resourcePath, getRandomPath(), relativePath, ownerAndPermission);
    }

    public static CopyableFile getTestCopyableFile(String resourcePath, String destinationPath, String relativePath,
            OwnerAndPermission ownerAndPermission) {

        FileStatus status = null;

        if (resourcePath == null) {
            resourcePath = getRandomPath();
            status = new FileStatus(0l, false, 0, 0l, 0l, new Path(resourcePath));
        } else {
            String filePath = CopyableFileUtils.class.getClassLoader().getResource(resourcePath).getFile();
            status = new FileStatus(0l, false, 0, 0l, 0l, new Path(filePath));
        }

        if (relativePath == null) {
            relativePath = getRandomPath();
        }

        Path destinationRelativePath = new Path(relativePath);

        return new CopyableFile(status, new Path(destinationPath), ownerAndPermission, null, null,
                PreserveAttributes.fromMnemonicString(""), "", 0, 0, Maps.<String, String>newHashMap());
    }

    private static String getRandomPath() {
        return new Path(RandomStringUtils.randomAlphabetic(6), RandomStringUtils.randomAlphabetic(6)).toString();
    }
}