/**
* $RCSfile$
* $Revision: 4538 $
* $Date: 2006-07-18 09:14:33 +0400 (Tue, 18 Jul 2006) $
*
* Copyright 2003-2004 Jive Software.
*
* All rights reserved. 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.jivesoftware.smackx.provider;
import org.jivesoftware.smack.packet.PacketExtension;
import org.jivesoftware.smack.provider.PacketExtensionProvider;
import org.jivesoftware.smackx.FormField;
import org.jivesoftware.smackx.packet.DataForm;
import org.xmlpull.v1.XmlPullParser;
import java.util.ArrayList;
import java.util.List;
/**
* The DataFormProvider parses DataForm packets.
*
* @author Gaston Dombiak
*/
public class DataFormProvider implements PacketExtensionProvider {
/**
* Creates a new DataFormProvider.
* ProviderManager requires that every PacketExtensionProvider has a public, no-argument constructor
*/
public DataFormProvider() {
}
public PacketExtension parseExtension(XmlPullParser parser) throws Exception {
boolean done = false;
StringBuilder buffer = null;
DataForm dataForm = new DataForm(parser.getAttributeValue("", "type"));
while (!done) {
int eventType = parser.next();
if (eventType == XmlPullParser.START_TAG) {
if (parser.getName().equals("instructions")) {
dataForm.addInstruction(parser.nextText());
}
else if (parser.getName().equals("title")) {
dataForm.setTitle(parser.nextText());
}
else if (parser.getName().equals("field")) {
dataForm.addField(parseField(parser));
}
else if (parser.getName().equals("item")) {
dataForm.addItem(parseItem(parser));
}
else if (parser.getName().equals("reported")) {
dataForm.setReportedData(parseReported(parser));
}
} else if (eventType == XmlPullParser.END_TAG) {
if (parser.getName().equals(dataForm.getElementName())) {
done = true;
}
}
}
return dataForm;
}
private FormField parseField(XmlPullParser parser) throws Exception {
boolean done = false;
FormField formField = new FormField(parser.getAttributeValue("", "var"));
formField.setLabel(parser.getAttributeValue("", "label"));
formField.setType(parser.getAttributeValue("", "type"));
while (!done) {
int eventType = parser.next();
if (eventType == XmlPullParser.START_TAG) {
if (parser.getName().equals("desc")) {
formField.setDescription(parser.nextText());
}
else if (parser.getName().equals("value")) {
formField.addValue(parser.nextText());
}
else if (parser.getName().equals("required")) {
formField.setRequired(true);
}
else if (parser.getName().equals("option")) {
formField.addOption(parseOption(parser));
}
} else if (eventType == XmlPullParser.END_TAG) {
if (parser.getName().equals("field")) {
done = true;
}
}
}
return formField;
}
private DataForm.Item parseItem(XmlPullParser parser) throws Exception {
boolean done = false;
List fields = new ArrayList();
while (!done) {
int eventType = parser.next();
if (eventType == XmlPullParser.START_TAG) {
if (parser.getName().equals("field")) {
fields.add(parseField(parser));
}
} else if (eventType == XmlPullParser.END_TAG) {
if (parser.getName().equals("item")) {
done = true;
}
}
}
return new DataForm.Item(fields);
}
private DataForm.ReportedData parseReported(XmlPullParser parser) throws Exception {
boolean done = false;
List fields = new ArrayList();
while (!done) {
int eventType = parser.next();
if (eventType == XmlPullParser.START_TAG) {
if (parser.getName().equals("field")) {
fields.add(parseField(parser));
}
} else if (eventType == XmlPullParser.END_TAG) {
if (parser.getName().equals("reported")) {
done = true;
}
}
}
return new DataForm.ReportedData(fields);
}
private FormField.Option parseOption(XmlPullParser parser) throws Exception {
boolean done = false;
FormField.Option option = null;
String label = parser.getAttributeValue("", "label");
while (!done) {
int eventType = parser.next();
if (eventType == XmlPullParser.START_TAG) {
if (parser.getName().equals("value")) {
option = new FormField.Option(label, parser.nextText());
}
} else if (eventType == XmlPullParser.END_TAG) {
if (parser.getName().equals("option")) {
done = true;
}
}
}
return option;
}
}