/**
* Copyright 2007 Charlie Hubbard
*
* 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 flexjson;
import java.util.LinkedList;
import java.util.List;
/**
* Internal class used by Flexjson to represent a path to a field within a serialized stream.
*/
public class Path {
LinkedList<String> path = new LinkedList<String>();
public Path() {
}
public Path(String... fields) {
for (String field : fields) {
path.add(field);
}
}
public Path enqueue(String field) {
path.add(field);
return this;
}
public String pop() {
return path.removeLast();
}
public List<String> getPath() {
return path;
}
public int length() {
return path.size();
}
public String toString() {
StringBuilder builder = new StringBuilder("[ ");
boolean afterFirst = false;
for (String current : path) {
if (afterFirst) {
builder.append(".");
}
builder.append(current);
afterFirst = true;
}
builder.append(" ]");
return builder.toString();
}
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Path path1 = (Path) o;
if (!path.equals(path1.path)) return false;
return true;
}
public int hashCode() {
return path.hashCode();
}
public static Path parse(String path) {
return path != null ? new Path( path.split("\\." ) ) : new Path();
}
}
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