/*
    * 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.commons.vfs2.perf;
  
  import org.apache.commons.vfs2.FileName;
  import org.apache.commons.vfs2.FileObject;
  import org.apache.commons.vfs2.FileSystemException;
  import org.apache.commons.vfs2.FileSystemManager;
  import org.apache.commons.vfs2.VFS;
  
  public class FileNamePerformance {
      private final static int NUOF_RESOLVES = 100000;
  
      public static void main(final String[] args) throws FileSystemException {
          final FileSystemManager mgr = VFS.getManager();
  
          final FileObject root = mgr.resolveFile("smb://HOME\\vfsusr:vfs%2f%25\\te:st@10.0.1.54/vfsusr");
          final FileName rootName = root.getName();
  
          testNames(mgr, rootName);
  
          testChildren(root);
  
          testFiles(mgr);
      }
  
      private static void testChildren(final FileObject root) throws FileSystemException {
          for (int i = 0; i < 10; i++) {
              // warmup jvm
              root.resolveFile("/many/path/elements/with%25esc/any%25where/to/file.txt");
          }
  
          final long startMillis = System.currentTimeMillis();
          for (int i = 0; i < NUOF_RESOLVES; i++) {
              root.resolveFile("/many/path/elements/with%25esc/any%25where/to/file.txt");
          }
          final long endMillis = System.currentTimeMillis();
  
          System.err.println("time to resolve " + NUOF_RESOLVES + " children: " + (endMillis - startMillis) + " milliseconds");
      }
  
      private static void testFiles(final FileSystemManager mgr) throws FileSystemException {
          for (int i = 0; i < 10; i++) {
              // warmup jvm
              mgr.resolveFile(
                      "smb://HOME\\vfsusr:vfs%2f%25\\te:st@10.0.1.54/vfsusr/many/path/elements/with%25esc/any%25where/to/file.txt");
          }
  
          final long startMillis = System.currentTimeMillis();
          for (int i = 0; i < NUOF_RESOLVES; i++) {
              mgr.resolveFile(
                      "smb://HOME\\vfsusr:vfs%2f%25\\te:st@10.0.1.54/vfsusr/many/path/elements/with%25esc/any%25where/to/file.txt");
          }
          final long endMillis = System.currentTimeMillis();
  
          System.err.println("time to resolve " + NUOF_RESOLVES + " files: " + (endMillis - startMillis) + " milliseconds");
      }
  
      private static void testNames(final FileSystemManager mgr, final FileName rootName) throws FileSystemException {
          for (int i = 0; i < 10; i++) {
              // warmup jvm
              mgr.resolveName(rootName, "/many/path/elements/with%25esc/any%25where/to/file.txt");
          }
  
          final long startMillis = System.currentTimeMillis();
          for (int i = 0; i < NUOF_RESOLVES; i++) {
              mgr.resolveName(rootName, "/many/path/elements/with%25esc/any%25where/to/file.txt");
          }
          final long endMillis = System.currentTimeMillis();
  
          System.err.println("time to resolve " + NUOF_RESOLVES + " names: " + (endMillis - startMillis) + " milliseconds");
      }
  }