package org.apache.maven.plugins.shade.filter;
/*
* 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.
*/
import org.codehaus.plexus.util.SelectorUtils;
import java.io.File;
import java.util.HashSet;
import java.util.Set;
/**
* @author David Blevins
*/
/**
* @author kama
*
*/
public class SimpleFilter
implements Filter
{
private Set<File> jars;
private Set<String> includes;
private Set<String> excludes;
/**
* @param jars set of {@link File}s.
* @param includes set of includes.
* @param excludes set of excludes
*/
public SimpleFilter( Set<File> jars, Set<String> includes, Set<String> excludes )
{
this.jars = ( jars != null ) ? new HashSet<File>( jars ) : new HashSet<File>();
this.includes = normalizePatterns( includes );
this.excludes = normalizePatterns( excludes );
}
/** {@inheritDoc} */
public boolean canFilter( File jar )
{
return jars.contains( jar );
}
/** {@inheritDoc} */
public boolean isFiltered( String classFile )
{
String path = normalizePath( classFile );
return !( isIncluded( path ) && !isExcluded( path ) );
}
/**
* @param classFile The class file.
* @return true if included false otherwise.
*/
public boolean isSpecificallyIncluded( String classFile )
{
if ( includes == null || includes.isEmpty() )
{
return false;
}
String path = normalizePath( classFile );
return isIncluded( path );
}
private boolean isIncluded( String classFile )
{
if ( includes == null || includes.isEmpty() )
{
return true;
}
return matchPaths( includes, classFile );
}
private boolean isExcluded( String classFile )
{
if ( excludes == null || excludes.isEmpty() )
{
return false;
}
return matchPaths( excludes, classFile );
}
private boolean matchPaths( Set<String> patterns, String classFile )
{
for ( String pattern : patterns )
{
if ( SelectorUtils.matchPath( pattern, classFile ) )
{
return true;
}
}
return false;
}
private String normalizePath( String path )
{
return ( path != null ) ? path.replace( File.separatorChar == '/' ? '\\' : '/', File.separatorChar ) : null;
}
private Set<String> normalizePatterns( Set<String> patterns )
{
Set<String> result = new HashSet<String>();
if ( patterns != null )
{
for ( String pattern : patterns )
{
pattern = normalizePath( pattern );
if ( pattern.endsWith( File.separator ) )
{
pattern += "**";
}
result.add( pattern );
}
}
return result;
}
/** {@inheritDoc} */
public void finished()
{
}
}