cn.dreampie.FileUtilities Maven / Gradle / Ivy

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package cn.dreampie;

import com.google.common.collect.Lists;
import org.apache.commons.io.filefilter.DirectoryFileFilter;
import org.apache.commons.io.filefilter.SuffixFileFilter;
import org.apache.maven.model.FileSet;
import org.codehaus.plexus.util.FileUtils;

import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;

/**
 * Copyright 2011 Mark Derricutt.
 * 
 * Contributing authors:
 * Daniel Bower
 * 

 * 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.
 * 
 * Utilities for working with Files and FileSets
 */
public class FileUtilities {

  @SuppressWarnings("unchecked")
  public static List getFilesFromFileSet(FileSet fileSet) throws IOException {
    List files = Lists.newArrayList();

    try {
      File directory = new File(fileSet.getDirectory());
      String includes = getCommaSeparatedList(fileSet.getIncludes());
      String excludes = getCommaSeparatedList(fileSet.getExcludes());
      files = FileUtils.getFiles(directory, includes, excludes);
    } catch (IOException e) {
      throw new IOException("Unable to access files in fileSet", e);
    }

    return files;
  }

  /**
   * Turn a list of Strings into a concatenated string of filenames
   */
  public static String getCommaSeparatedList(List list) {
    StringBuffer sb = new StringBuffer();

    for (Iterator i = list.iterator(); i.hasNext(); ) {
      sb.append(i.next());
      if (i.hasNext()) {
        sb.append(",");
      }
    }

    return sb.toString();
  }

  /**
   * Turn a list of files into a comma separated list of filenames
   */
  public static String getCommaSeparatedListOfFileNames(List fileList) {
    StringBuffer sb = new StringBuffer();

    for (Iterator i = fileList.iterator(); i.hasNext(); ) {
      sb.append(i.next().getAbsolutePath());
      if (i.hasNext()) {
        sb.append(",");
      }
    }

    return sb.toString();
  }

  /**
   * Convenience Method for turn a string path containing .js files into a list of files to be processed
   *
   * @param sourceDirectory
   */
  public static List directoryToFileList(String sourceDirectory) {
    File srcDir = new File(sourceDirectory);
    return getDirFiles(srcDir);
  }

  public static List directoryToFileList(File sourceDirectory) {
    return getDirFiles(sourceDirectory);
  }

  private static List getDirFiles(File srcDir) {
    List files = Lists.newArrayList();
    if (srcDir.exists() && srcDir.isDirectory()) {
      //js文件
      File[] filesInSrcDir = srcDir.listFiles((FileFilter) new SuffixFileFilter(".js"));
      for (File file : filesInSrcDir) {
        files.add(file);
      }
      //目录
      File[] dirs = srcDir.listFiles((FileFilter) DirectoryFileFilter.DIRECTORY);
      for (File file : dirs) {
        files.addAll(getDirFiles(file));
      }
    }
    return files;
  }

  /**
   * Convenience Method for turning a string path for a single file into a list of files to be processed
   *
   * @param sourceFile
   */
  public static List fileToFileList(String sourceFile) {
    List files = Lists.newArrayList();
    File srcFile = new File(sourceFile);

    if (srcFile.exists() && srcFile.isFile()) {
      files.add(srcFile);
    }

    return files;
  }

  /**
   * Convenience Method for turning a FileSet into a list of files to be processed
   */
  public static List fileSetToFileList(FileSet fileset) throws IOException {
    return FileUtilities.getFilesFromFileSet(fileset);
  }


  public static void main(String[] args) {
//    System.out.println(FileUtilities.getCommaSeparatedListOfFileNames(directoryToFileList("/home/ice/IdeaProjects/icedog/src/main/")));
    File file = new File("/home/ice/IdeaProjects/icedog/src/main/webapp/javascript/min/a.js");
    System.out.println(file.getParentFile().mkdir());
  }
}