org.apache.sqoop.util.FileUploader.java Source code

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Here is the source code for org.apache.sqoop.util.FileUploader.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 org.apache.sqoop.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

import org.apache.commons.io.IOUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;

public class FileUploader {
    public static final Log LOG = LogFactory.getLog(FileUploader.class.getName());

    private FileUploader() {
    }

    public static void uploadFilesToDFS(String srcBasePath, String src, String destBasePath, String dest,
            Configuration conf) throws IOException {

        FileSystem fs = FileSystem.get(conf);
        Path targetPath = null;
        Path srcPath = new Path(srcBasePath, src);

        if (destBasePath == null || destBasePath.length() == 0) {
            destBasePath = ".";
        }

        targetPath = new Path(destBasePath, dest);

        if (!fs.exists(targetPath)) {
            fs.mkdirs(targetPath);
        }

        Path targetPath2 = new Path(targetPath, src);
        fs.delete(targetPath2, true);

        try {
            LOG.info("Copying " + srcPath + " to " + targetPath);
            // Copy srcPath (on local FS) to targetPath on DFS.
            // The first boolean arg instructs not to delete source and the second
            // boolean arg instructs to overwrite dest if exists.
            fs.copyFromLocalFile(false, true, srcPath, targetPath);
        } catch (IOException ioe) {
            LOG.warn("Unable to copy " + srcPath + " to " + targetPath);
        }
    }

}