136 lines
6.2 KiB
Java
136 lines
6.2 KiB
Java
/**
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*
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* Copyright 2003-2007 Jive Software.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.jiveproperties.provider;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import org.jivesoftware.smack.packet.XmlEnvironment;
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import org.jivesoftware.smack.provider.ExtensionElementProvider;
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import org.jivesoftware.smack.util.stringencoder.Base64;
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import org.jivesoftware.smack.xml.XmlPullParser;
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import org.jivesoftware.smack.xml.XmlPullParserException;
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import org.jivesoftware.smackx.jiveproperties.JivePropertiesManager;
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import org.jivesoftware.smackx.jiveproperties.packet.JivePropertiesExtension;
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public class JivePropertiesExtensionProvider extends ExtensionElementProvider<JivePropertiesExtension> {
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private static final Logger LOGGER = Logger.getLogger(JivePropertiesExtensionProvider.class.getName());
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/**
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* Parse a properties sub-packet. If any errors occur while de-serializing Java object
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* properties, an exception will be printed and not thrown since a thrown exception will shut
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* down the entire connection. ClassCastExceptions will occur when both the sender and receiver
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* of the stanza don't have identical versions of the same class.
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* <p>
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* Note that you have to explicitly enabled Java object deserialization with @{link
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* {@link JivePropertiesManager#setJavaObjectEnabled(boolean)}
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*
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* @param parser the XML parser, positioned at the start of a properties sub-packet.
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* @return a map of the properties.
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* @throws IOException if an I/O error occurred.
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* @throws XmlPullParserException if an error in the XML parser occurred.
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*/
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@Override
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public JivePropertiesExtension parse(XmlPullParser parser,
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int initialDepth, XmlEnvironment xmlEnvironment) throws XmlPullParserException,
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IOException {
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Map<String, Object> properties = new HashMap<>();
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while (true) {
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XmlPullParser.Event eventType = parser.next();
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if (eventType == XmlPullParser.Event.START_ELEMENT && parser.getName().equals("property")) {
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// Parse a property
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boolean done = false;
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String name = null;
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String type = null;
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String valueText = null;
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Object value = null;
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while (!done) {
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eventType = parser.next();
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if (eventType == XmlPullParser.Event.START_ELEMENT) {
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String elementName = parser.getName();
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if (elementName.equals("name")) {
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name = parser.nextText();
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}
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else if (elementName.equals("value")) {
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type = parser.getAttributeValue("", "type");
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valueText = parser.nextText();
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}
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}
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else if (eventType == XmlPullParser.Event.END_ELEMENT) {
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if (parser.getName().equals("property")) {
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if ("integer".equals(type)) {
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value = Integer.valueOf(valueText);
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}
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else if ("long".equals(type)) {
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value = Long.valueOf(valueText);
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}
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else if ("float".equals(type)) {
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value = Float.valueOf(valueText);
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}
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else if ("double".equals(type)) {
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value = Double.valueOf(valueText);
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}
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else if ("boolean".equals(type)) {
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// CHECKSTYLE:OFF
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value = Boolean.valueOf(valueText);
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// CHECKSTYLE:ON
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}
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else if ("string".equals(type)) {
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value = valueText;
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}
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else if ("java-object".equals(type)) {
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if (JivePropertiesManager.isJavaObjectEnabled()) {
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try {
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byte[] bytes = Base64.decode(valueText);
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ObjectInputStream in = new ObjectInputStream(
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new ByteArrayInputStream(bytes));
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value = in.readObject();
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}
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catch (Exception e) {
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LOGGER.log(Level.SEVERE, "Error parsing java object", e);
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}
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}
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else {
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LOGGER.severe("JavaObject is not enabled. Enable with JivePropertiesManager.setJavaObjectEnabled(true)");
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}
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}
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if (name != null && value != null) {
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properties.put(name, value);
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}
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done = true;
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}
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}
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}
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}
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else if (eventType == XmlPullParser.Event.END_ELEMENT) {
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if (parser.getName().equals(JivePropertiesExtension.ELEMENT)) {
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break;
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}
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}
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}
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return new JivePropertiesExtension(properties);
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}
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}
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