shaded.org.apache.maven.model.path.DefaultUrlNormalizer Maven / Gradle / Ivy
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package shaded.shaded.org.apache.maven.model.path;
/*
* 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 javax.inject.Named;
import javax.inject.Singleton;
/**
* Normalizes a URL.
*
* @author Benjamin Bentmann
*/
@Named
@Singleton
public class DefaultUrlNormalizer
implements UrlNormalizer
{
@Override
public String normalize( String url )
{
String result = url;
if ( result != null )
{
while ( true )
{
int idx = result.indexOf( "/../" );
if ( idx < 0 )
{
break;
}
else if ( idx == 0 )
{
result = result.substring( 3 );
continue;
}
int parent = idx - 1;
while ( parent >= 0 && result.charAt( parent ) == '/' )
{
parent--;
}
parent = result.lastIndexOf( '/', parent );
if ( parent < 0 )
{
result = result.substring( idx + 4 );
}
else
{
result = result.substring( 0, parent ) + result.substring( idx + 3 );
}
}
}
return result;
}
}