/*
    *  Copyright 2012 Chris Pheby
    *
    *  Licensed 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.jadira.scanner.classfile.filter;
  
  import java.io.File;
  
  import org.jadira.scanner.core.api.Filter;
  import org.jadira.scanner.core.filter.AbstractFilter;
  
  /**
   * This filter matches files in a corresponding package
   */
  public class PackageFileFilter extends AbstractFilter<File> implements Filter<File> {
  	
  	private static final char FILE_SEPARATOR = System.getProperty("file.separator").charAt(0);
  	
  	private final String name;
  
  	public PackageFileFilter(String name, boolean trimTrailingClassName) {
  		
  		String myName = name.replace('.', FILE_SEPARATOR);
  		
  		if (trimTrailingClassName) {
  			int lastDirIndex = myName.lastIndexOf(FILE_SEPARATOR);
  			if (lastDirIndex == -1) {
  				this.name = myName;
  			} else {
  				this.name = myName.substring(0, lastDirIndex);
  			}
  		} else {
  			this.name = myName;
  		}
  	}
  	
  	@Override
  	public boolean accept(File element) {
  		
  		String matchName = element.getPath();
  		int lastDirIndex = matchName.lastIndexOf(FILE_SEPARATOR);
  		if (lastDirIndex != -1) {
  			matchName = element.getPath().substring(0, lastDirIndex);
  		}
  		
  		boolean accept = matchName.endsWith(name);
  		return accept;
  	}
  }