thredds.filesystem.CacheDirectory Maven / Gradle / Ivy

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/*
 * Copyright (c) 1998 - 2009. University Corporation for Atmospheric Research/Unidata
 * Portions of this software were developed by the Unidata Program at the
 * University Corporation for Atmospheric Research.
 *
 * Access and use of this software shall impose the following obligations
 * and understandings on the user. The user is granted the right, without
 * any fee or cost, to use, copy, modify, alter, enhance and distribute
 * this software, and any derivative works thereof, and its supporting
 * documentation for any purpose whatsoever, provided that this entire
 * notice appears in all copies of the software, derivative works and
 * supporting documentation.  Further, UCAR requests that the user credit
 * UCAR/Unidata in any publications that result from the use of this
 * software or in any product that includes this software. The names UCAR
 * and/or Unidata, however, may not be used in any advertising or publicity
 * to endorse or promote any products or commercial entity unless specific
 * written permission is obtained from UCAR/Unidata. The user also
 * understands that UCAR/Unidata is not obligated to provide the user with
 * any support, consulting, training or assistance of any kind with regard
 * to the use, operation and performance of this software nor to provide
 * the user with any updates, revisions, new versions or "bug fixes."
 *
 * THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
 */
package thredds.filesystem;

import ucar.unidata.util.StringUtil;

import java.io.File;
import java.io.Serializable;
import java.util.Formatter;

/**
 * Lightweight, serializable representation of a java.io.File directory
 * @author caron
 * @since Mar 21, 2009
 */
public class CacheDirectory extends CacheFile implements Serializable {
  private String parentDirName;
  private CacheFile[] children;

  public CacheDirectory(File dir) {
    super(dir);
    this.parentDirName =  StringUtil.replace(dir.getParent(), '\\', "/");

    File[] subs = dir.listFiles();
    if (subs == null) subs = new File[0];
    children = new CacheFile[subs.length];
    int count = 0;
    for (File f : subs) {
      children[count++] = new CacheFile(f);
    }
  }

  public String getPath() {
    return parentDirName +"/" + getShortName();
  }

  public CacheFile[] getChildren() {
    return children;
  }

  @Override
  public String toString() {
    Formatter p = new Formatter();
    p.format("CacheDirector path=%s num=%d %n", getPath(), children.length);
    for (CacheFile f : children)
      p.format("  %s%n", f);
    return p.toString();
  }
}