com.fizzed.stork.util.CopyFile.java Source code

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Here is the source code for com.fizzed.stork.util.CopyFile.java

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/*
 * Copyright 2014 Fizzed, Inc.
 *
 * 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.fizzed.stork.util;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 *
 * @author joelauer
 */
public class CopyFile {
    private static final Logger logger = LoggerFactory.getLogger(CopyFile.class);

    static public void main(String[] args) throws Exception {
        new CopyFile().run(args);
    }

    public String popNextArg(String argSwitch, List<String> argList) {
        if (argList.isEmpty()) {
            logger.error("argument switch [" + argSwitch + "] is missing value as next argument");
            System.exit(1);
        }
        return argList.remove(0);
    }

    public void run(String[] args) {
        List<String> argList = new ArrayList<String>(Arrays.asList(args));

        List<File> inputFiles = new ArrayList<File>();
        File outputDir = null;

        // parse command-line arguments
        while (argList.size() > 0) {
            String argSwitch = argList.remove(0);

            if (argSwitch.equals("-i")) {
                String fileString = popNextArg(argSwitch, argList);
                inputFiles.add(new File(fileString));
            } else if (argSwitch.equals("-o")) {
                String fileString = popNextArg(argSwitch, argList);
                outputDir = new File(fileString);
            } else {
                logger.error("invalid argument switch [" + argSwitch + "] found");
                System.exit(1);
            }
        }

        if (inputFiles.isEmpty()) {
            logger.error("No input files provided");
            System.exit(1);
        }

        for (File inputFile : inputFiles) {
            try {
                if (inputFile.isDirectory()) {
                    File[] files = inputFile.listFiles();
                    for (File f : files) {
                        copyFile(f, outputDir);
                    }
                } else {
                    copyFile(inputFile, outputDir);
                }
            } catch (Exception e) {
                logger.error("", e);
                System.exit(1);
            }
        }
    }

    public void copyFile(File inputFile, File outputDir) throws IOException {
        if (inputFile.isDirectory()) {
            File[] files = inputFile.listFiles();
            File newOutputDir = new File(outputDir, inputFile.getName());
            for (File f : files) {
                copyFile(f, newOutputDir);
            }
        } else {
            File outputFile = new File(outputDir, inputFile.getName());
            outputDir.mkdirs();
            logger.info(" copying " + inputFile + " to " + outputFile);
            FileUtils.copyFile(inputFile, outputFile);
            if (inputFile.canExecute()) {
                outputFile.setExecutable(true);
            }
        }
    }

}