/*
* 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(String[] args) throws FileSystemException
{
FileSystemManager mgr = VFS.getManager();
FileObject root = mgr
.resolveFile("smb://HOME\\vfsusr:vfs%2f%25\\te:st@10.0.1.54/vfsusr");
FileName rootName = root.getName();
testNames(mgr, rootName);
testChildren(root);
testFiles(mgr);
}
private static void testFiles(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");
}
long start = 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");
}
long end = System.currentTimeMillis();
System.err.println("time to resolve " + NUOF_RESOLVES + " files: "
+ (end - start) + "ms");
}
private static void testChildren(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");
}
long start = System.currentTimeMillis();
for (int i = 0; i < NUOF_RESOLVES; i++)
{
root.resolveFile("/many/path/elements/with%25esc/any%25where/to/file.txt");
}
long end = System.currentTimeMillis();
System.err.println("time to resolve " + NUOF_RESOLVES + " childs: "
+ (end - start) + "ms");
}
private static void testNames(FileSystemManager mgr, 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");
}
long start = System.currentTimeMillis();
for (int i = 0; i < NUOF_RESOLVES; i++)
{
mgr.resolveName(rootName,
"/many/path/elements/with%25esc/any%25where/to/file.txt");
}
long end = System.currentTimeMillis();
System.err.println("time to resolve " + NUOF_RESOLVES + " names: "
+ (end - start) + "ms");
}
}