* 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.
import javax.xml.stream.events.XMLEvent;
/**
- * Match Class allows you to build an automatic Tree of StAX (or StAX like)
+ * Match Class allows you to build an automatic Tree of StAX (or StAX like)
* Objects for frequent use.
- *
+ *
* OBJECT is a type which you which to do some end Actions on, similar to a Visitor pattern, see Action
- *
+ *
* Note: We have implemented with XReader and XEvent, rather than StAX for performance reasons.
- *
+ *
* @see Action
* @see Match
* @see XEvent
* @see XReader
- *
+ *
* @author Jonathan
*
* @param <OUTPUT>
*/
//@SuppressWarnings("restriction")
public class Match<OUTPUT> {
- private QName qname;
- private Match<OUTPUT>[] next;
- private Match<OUTPUT> prev;
- private Action<OUTPUT> action = null;
- private boolean stopAfter;
- private boolean exclusive;
-
+ private QName qname;
+ private Match<OUTPUT>[] next;
+ private Match<OUTPUT> prev;
+ private Action<OUTPUT> action = null;
+ private boolean stopAfter;
+ private boolean exclusive;
+
+
+ @SafeVarargs
+ public Match(String ns, String name, Match<OUTPUT> ... next) {
+ this.qname = new QName(ns,name);
+ this.next = next;
+ stopAfter = exclusive = false;
+ for (Match<OUTPUT> m : next) { // add the possible tags to look for
+ if (!m.stopAfter)m.prev = this;
+ }
+ }
+
+ public Match<OUTPUT> onMatch(OUTPUT output, XReader reader) throws XMLStreamException {
+ while (reader.hasNext()) {
+ XEvent event = reader.nextEvent();
+ switch(event.getEventType()) {
+ case XMLEvent.START_ELEMENT:
+ QName e_qname = event.asStartElement().getName();
+ //System.out.println("Start - " + e_qname);
+ boolean match = false;
+ for (Match<OUTPUT> m : next) {
+ if (e_qname.equals(m.qname)) {
+ match=true;
+ if (m.onMatch(output, reader)==null) {
+ return null; // short circuit Parsing
+ }
+ break;
+ }
+ }
+ if (exclusive && !match) // When Tag MUST be present, i.e. the Root Tag, versus info we're not interested in
+ return null;
+ break;
+ case XMLEvent.CHARACTERS:
+ //System.out.println("Data - " +event.asCharacters().getData());
+ if (action!=null) {
+ if (!action.content(output,event.asCharacters().getData())) {
+ return null;
+ }
+ }
+ break;
+ case XMLEvent.END_ELEMENT:
+ //System.out.println("End - " + event.asEndElement().getName());
+ if (event.asEndElement().getName().equals(qname)) {
+ return prev;
+ }
+ break;
+ case XMLEvent.END_DOCUMENT:
+ return null; // Exit Chain
+ }
+ }
+ return this;
+ }
- @SafeVarargs
- public Match(String ns, String name, Match<OUTPUT> ... next) {
- this.qname = new QName(ns,name);
- this.next = next;
- stopAfter = exclusive = false;
- for(Match<OUTPUT> m : next) { // add the possible tags to look for
- if(!m.stopAfter)m.prev = this;
- }
- }
-
- public Match<OUTPUT> onMatch(OUTPUT output, XReader reader) throws XMLStreamException {
- while(reader.hasNext()) {
- XEvent event = reader.nextEvent();
- switch(event.getEventType()) {
- case XMLEvent.START_ELEMENT:
- QName e_qname = event.asStartElement().getName();
- //System.out.println("Start - " + e_qname);
- boolean match = false;
- for(Match<OUTPUT> m : next) {
- if(e_qname.equals(m.qname)) {
- match=true;
- if(m.onMatch(output, reader)==null) {
- return null; // short circuit Parsing
- }
- break;
- }
- }
- if(exclusive && !match) // When Tag MUST be present, i.e. the Root Tag, versus info we're not interested in
- return null;
- break;
- case XMLEvent.CHARACTERS:
- //System.out.println("Data - " +event.asCharacters().getData());
- if(action!=null) {
- if(!action.content(output,event.asCharacters().getData())) {
- return null;
- }
- }
- break;
- case XMLEvent.END_ELEMENT:
- //System.out.println("End - " + event.asEndElement().getName());
- if(event.asEndElement().getName().equals(qname)) {
- return prev;
- }
- break;
- case XMLEvent.END_DOCUMENT:
- return null; // Exit Chain
- }
- }
- return this;
- }
+ /**
+ * When this Matched Tag has completed, Stop parsing and end
+ * @return
+ */
+ public Match<OUTPUT> stopAfter() {
+ stopAfter = true;
+ return this;
+ }
- /**
- * When this Matched Tag has completed, Stop parsing and end
- * @return
- */
- public Match<OUTPUT> stopAfter() {
- stopAfter = true;
- return this;
- }
-
- /**
- * Mark that this Object MUST be matched at this level or stop parsing and end
- *
- * @param action
- * @return
- */
- public Match<OUTPUT> exclusive() {
- exclusive = true;
- return this;
- }
+ /**
+ * Mark that this Object MUST be matched at this level or stop parsing and end
+ *
+ * @param action
+ * @return
+ */
+ public Match<OUTPUT> exclusive() {
+ exclusive = true;
+ return this;
+ }
- public Match<OUTPUT> set(Action<OUTPUT> action) {
- this.action = action;
- return this;
- }
+ public Match<OUTPUT> set(Action<OUTPUT> action) {
+ this.action = action;
+ return this;
+ }
}
\ No newline at end of file
Code Review / aaf / authz.git / blobdiff