/*
* 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.log4j.lf5.viewer.categoryexplorer;
import java.util.LinkedList;
import java.util.StringTokenizer;
/**
* CategoryPath is a collection of CategoryItems which represent a
* path of categories.
*
* @author Michael J. Sikorsky
* @author Robert Shaw
*/
// Contributed by ThoughtWorks Inc.
public class CategoryPath {
//--------------------------------------------------------------------------
// Constants:
//--------------------------------------------------------------------------
//--------------------------------------------------------------------------
// Protected Variables:
//--------------------------------------------------------------------------
protected LinkedList _categoryElements = new LinkedList();
//--------------------------------------------------------------------------
// Private Variables:
//--------------------------------------------------------------------------
//--------------------------------------------------------------------------
// Constructors:
//--------------------------------------------------------------------------
public CategoryPath() {
super();
}
/**
* Construct a CategoryPath. If the category is null, it defaults to "Debug".
*/
public CategoryPath(String category) {
String processedCategory = category;
if (processedCategory == null) {
processedCategory = "Debug";
}
processedCategory = processedCategory.replace('/', '.');
processedCategory = processedCategory.replace('\\', '.');
StringTokenizer st = new StringTokenizer(processedCategory, ".");
while (st.hasMoreTokens()) {
String element = st.nextToken();
addCategoryElement(new CategoryElement(element));
}
}
//--------------------------------------------------------------------------
// Public Methods:
//--------------------------------------------------------------------------
/**
* returns the number of CategoryElements.
*/
public int size() {
int count = _categoryElements.size();
return (count);
}
public boolean isEmpty() {
boolean empty = false;
if (_categoryElements.size() == 0) {
empty = true;
}
return (empty);
}
/**
* Removes all categoryElements.
*/
public void removeAllCategoryElements() {
_categoryElements.clear();
}
/**
* Adds the specified categoryElement to the end of the categoryElement set.
*/
public void addCategoryElement(CategoryElement categoryElement) {
_categoryElements.addLast(categoryElement);
}
/**
* Returns the CategoryElement at the specified index.
*/
public CategoryElement categoryElementAt(int index) {
return ((CategoryElement) _categoryElements.get(index));
}
public String toString() {
StringBuffer out = new StringBuffer(100);
out.append("\n");
out.append("===========================\n");
out.append("CategoryPath: \n");
out.append("---------------------------\n");
out.append("\nCategoryPath:\n\t");
if (this.size() > 0) {
for (int i = 0; i < this.size(); i++) {
out.append(this.categoryElementAt(i).toString());
out.append("\n\t");
}
} else {
out.append("<<NONE>>");
}
out.append("\n");
out.append("===========================\n");
return (out.toString());
}
//--------------------------------------------------------------------------
// Protected Methods:
//--------------------------------------------------------------------------
//--------------------------------------------------------------------------
// Private Methods:
//--------------------------------------------------------------------------
//--------------------------------------------------------------------------
// Nested Top-Level Classes or Interfaces:
//--------------------------------------------------------------------------
}
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