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https://github.com/vanitasvitae/Smack.git
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6980c8e63d
this is the first stop towards fixing "SMACK-65: parsing should look for depth", by providing the initial parsing depth to the provider. Some methods (.e.g parseMessage) now use the depth as abort condition, instead of a unclean String equals check. parseIQ() and parseExtension() where both renamed to parse. This also restricts the Exceptions thrown by the parse method, to just XmlPullParserException, IOException and SmackException (not really a big victory, but nevertheless a slight improvement). StreamFeatureProvider is now gone, we simply use PacketExtensionProvider for stream features.
130 lines
5.3 KiB
Java
130 lines
5.3 KiB
Java
/**
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*
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* Copyright 2014 Vyacheslav Blinov
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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.amp.provider;
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import java.io.IOException;
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import java.util.logging.Logger;
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import org.jivesoftware.smack.provider.PacketExtensionProvider;
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import org.jivesoftware.smackx.amp.AMPDeliverCondition;
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import org.jivesoftware.smackx.amp.AMPExpireAtCondition;
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import org.jivesoftware.smackx.amp.AMPMatchResourceCondition;
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import org.jivesoftware.smackx.amp.packet.AMPExtension;
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import org.xmlpull.v1.XmlPullParser;
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import org.xmlpull.v1.XmlPullParserException;
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public class AMPExtensionProvider extends PacketExtensionProvider<AMPExtension> {
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private static final Logger LOGGER = Logger.getLogger(AMPExtensionProvider.class.getName());
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/**
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* Parses a AMPExtension packet (extension sub-packet).
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*
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* @param parser the XML parser, positioned at the starting element of the extension.
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* @return a PacketExtension.
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* @throws IOException
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* @throws XmlPullParserException
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*/
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@Override
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public AMPExtension parse(XmlPullParser parser, int initialDepth)
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throws XmlPullParserException, IOException {
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final String from = parser.getAttributeValue(null, "from");
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final String to = parser.getAttributeValue(null, "to");
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final String statusString = parser.getAttributeValue(null, "status");
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AMPExtension.Status status = null;
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if (statusString != null) {
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try {
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status = AMPExtension.Status.valueOf(statusString);
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} catch (IllegalArgumentException ex) {
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LOGGER.severe("Found invalid amp status " + statusString);
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}
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}
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AMPExtension ampExtension = new AMPExtension(from, to, status);
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String perHopValue = parser.getAttributeValue(null, "per-hop");
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if (perHopValue != null) {
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boolean perHop = Boolean.parseBoolean(perHopValue);
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ampExtension.setPerHop(perHop);
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}
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boolean done = false;
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while (!done) {
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int eventType = parser.next();
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if (eventType == XmlPullParser.START_TAG) {
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if (parser.getName().equals(AMPExtension.Rule.ELEMENT)) {
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String actionString = parser.getAttributeValue(null, AMPExtension.Action.ATTRIBUTE_NAME);
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String conditionName = parser.getAttributeValue(null, AMPExtension.Condition.ATTRIBUTE_NAME);
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String conditionValue = parser.getAttributeValue(null, "value");
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AMPExtension.Condition condition = createCondition(conditionName, conditionValue);
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AMPExtension.Action action = null;
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if (actionString != null) {
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try {
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action = AMPExtension.Action.valueOf(actionString);
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} catch (IllegalArgumentException ex) {
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LOGGER.severe("Found invalid rule action value " + actionString);
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}
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}
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if (action == null || condition == null) {
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LOGGER.severe("Rule is skipped because either it's action or it's condition is invalid");
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} else {
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AMPExtension.Rule rule = new AMPExtension.Rule(action, condition);
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ampExtension.addRule(rule);
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}
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}
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} else if (eventType == XmlPullParser.END_TAG) {
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if (parser.getName().equals(AMPExtension.ELEMENT)) {
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done = true;
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}
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}
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}
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return ampExtension;
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}
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private AMPExtension.Condition createCondition(String name, String value) {
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if (name == null || value == null) {
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LOGGER.severe("Can't create rule condition from null name and/or value");
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return null;
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}
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if (AMPDeliverCondition.NAME.equals(name)) {
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try {
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return new AMPDeliverCondition(AMPDeliverCondition.Value.valueOf(value));
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} catch (IllegalArgumentException ex) {
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LOGGER.severe("Found invalid rule delivery condition value " + value);
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return null;
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}
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} else if (AMPExpireAtCondition.NAME.equals(name)) {
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return new AMPExpireAtCondition(value);
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} else if (AMPMatchResourceCondition.NAME.equals(name)) {
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try {
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return new AMPMatchResourceCondition(AMPMatchResourceCondition.Value.valueOf(value));
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} catch (IllegalArgumentException ex) {
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LOGGER.severe("Found invalid rule match-resource condition value " + value);
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return null;
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}
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} else {
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LOGGER.severe("Found unknown rule condition name " + name);
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return null;
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}
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}
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}
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