commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Rikard Oxenstrand (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (VFS-400) Selector based on regular expressions
Date Mon, 06 Feb 2012 09:33:59 GMT
Selector based on regular expressions
-------------------------------------

                 Key: VFS-400
                 URL: https://issues.apache.org/jira/browse/VFS-400
             Project: Commons VFS
          Issue Type: New Feature
    Affects Versions: 2.1
            Reporter: Rikard Oxenstrand
            Priority: Minor


In the long todo list there was a post about adding a file selector based on regular expressions.
I had need for that for a specific project so I built a simple class that seems to work. I'm
kind of new to open source contribution though so I'm not sure if i should just commit it
to trunk. Here is the code:
{code:title=Bar.java|borderStyle=solid}
/*
 * 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;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * A {@link FileSelector} that selects based on regular expressions matched against base filename.
 * 
 * @since 2.1
 */
public class FileRegexSelector implements FileSelector
{

    /**
     * The extensions to select.
     */
    private Pattern pattern = null;

    /**
     * Creates a new selector for the given extensions.
     * 
     * @param extensions
     *            The extensions to be included by this selector.
     */
    public FileRegexSelector(String regex)
    {
    	this.pattern = Pattern.compile(regex);
    }

    /**
     * Determines if a file or folder should be selected.
     * @param fileInfo
     *            The file selection information.
     * @return true if the file should be selected, false otherwise.
     */
    public boolean includeFile(final FileSelectInfo fileInfo)
    {
        if (this.pattern == null)
        {
            return false;
        }
    	Matcher matcher = this.pattern.matcher(fileInfo.getFile().getName().getBaseName());
        return matcher.matches();
    }

    /**
     * Determines whether a folder should be traversed.
     * 
     * @param fileInfo
     *            The file selection information.
     * @return true if descendents should be traversed, fase otherwise.
     */
    public boolean traverseDescendents(final FileSelectInfo fileInfo)
    {
        return true;
    }
}
{code}

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message