/**
* Copyright 2006 Webmedia Group Ltd.
*
* 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.araneaframework.core;
import java.util.ArrayList;
import java.util.List;
import java.util.ListIterator;
import java.util.StringTokenizer;
import org.araneaframework.Path;
/**
* Path is represented as a dot-separated String.
*
* @author "Toomas Römer" <toomas@webmedia.ee>
*/
public class StandardPath implements Path {
private ListIterator path;
/**
* Constructs a path from the fullPath. Expects fullPath to be a dot-separated String.
* @param fullPath
*/
public StandardPath(String fullPath) {
List list = new ArrayList();
StringTokenizer tokenizer = new StringTokenizer(fullPath, ".");
while (tokenizer.hasMoreElements()) {
list.add(tokenizer.nextElement());
}
this.path = list.listIterator();
}
/**
* @see org.araneaframework.Path#getNext()
*/
public Object getNext() {
Object result = path.next();
path.previous();
return result;
}
/**
* @see org.araneaframework.Path#next()
*/
public Object next() {
return path.next();
}
/**
* @see org.araneaframework.Path#hasNext()
*/
public boolean hasNext() {
return path.hasNext();
}
/**
* Returns a dot-separated String of the Path.
*/
public String toString() {
StringBuffer result = new StringBuffer();
int counter = 0;
while(hasNext()) {
result.append((String)next()+".");
counter++;
}
if (result.length()>0 && result.charAt(result.length()-1)=='.') {
result = new StringBuffer(result.substring(0, result.length()-1));
}
for (int i=0;i<counter;i++) {
path.previous();
}
return result.toString();
}
}