org.jsfr.json.ContentDispatcher Maven / Gradle / Ivy
/*
* MIT License
*
* Copyright (c) 2019 WANG Lingsong
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.jsfr.json;
import java.util.Iterator;
import java.util.LinkedList;
class ContentDispatcher implements JsonSaxHandler {
private LinkedList receiver = new LinkedList();
public boolean isEmpty() {
return this.receiver.isEmpty();
}
public int size() {
return this.receiver.size();
}
protected void onRemove(JsonSaxHandler item) {
}
@Override
public boolean startJSON() {
if (receiver.isEmpty()) {
return true;
}
for (JsonSaxHandler observer : receiver) {
observer.startJSON();
}
return true;
}
@Override
public boolean endJSON() {
if (receiver.isEmpty()) {
return true;
}
for (JsonSaxHandler observer : receiver) {
observer.endJSON();
}
return true;
}
@Override
public boolean startObject() {
if (receiver.isEmpty()) {
return true;
}
Iterator itr = receiver.iterator();
while (itr.hasNext()) {
JsonSaxHandler observer = itr.next();
if (!observer.startObject()) {
itr.remove();
onRemove(observer);
}
}
return true;
}
@Override
public boolean endObject() {
if (receiver.isEmpty()) {
return true;
}
Iterator itr = receiver.iterator();
while (itr.hasNext()) {
JsonSaxHandler observer = itr.next();
if (!observer.endObject()) {
itr.remove();
onRemove(observer);
}
}
return true;
}
@Override
public boolean startObjectEntry(String key) {
if (receiver.isEmpty()) {
return true;
}
Iterator itr = receiver.iterator();
while (itr.hasNext()) {
JsonSaxHandler observer = itr.next();
if (!observer.startObjectEntry(key)) {
itr.remove();
onRemove(observer);
}
}
return true;
}
@Override
public boolean startArray() {
if (receiver.isEmpty()) {
return true;
}
Iterator itr = receiver.iterator();
while (itr.hasNext()) {
JsonSaxHandler observer = itr.next();
if (!observer.startArray()) {
itr.remove();
onRemove(observer);
}
}
return true;
}
@Override
public boolean endArray() {
if (receiver.isEmpty()) {
return true;
}
Iterator itr = receiver.iterator();
while (itr.hasNext()) {
JsonSaxHandler observer = itr.next();
if (!observer.endArray()) {
itr.remove();
onRemove(observer);
}
}
return true;
}
@Override
public boolean primitive(PrimitiveHolder primitiveHolder) {
if (receiver.isEmpty()) {
return true;
}
Iterator itr = receiver.iterator();
while (itr.hasNext()) {
JsonSaxHandler observer = itr.next();
if (!observer.primitive(primitiveHolder)) {
itr.remove();
onRemove(observer);
}
}
return true;
}
public void addReceiver(JsonSaxHandler contentHandler) {
receiver.addFirst(contentHandler);
}
// public JsonSaxHandler getLastReceiver() {
// return this.receiver.isEmpty() ? null : this.receiver.getFirst();
// }
}