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Smack/smack-core/src/main/java/org/jivesoftware/smack/provider/Provider.java
Florian Schmaus 6980c8e63d Rework Smack Provider design
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.
2014-10-08 16:01:14 +02:00

44 lines
1.6 KiB
Java

/**
*
* Copyright © 2014 Florian Schmaus
*
* 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.smack.provider;
import java.io.IOException;
import org.jivesoftware.smack.SmackException;
import org.jivesoftware.smack.packet.Element;
import org.jivesoftware.smack.util.ParserUtils;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
public abstract class Provider<E extends Element> {
public final E parse(XmlPullParser parser) throws XmlPullParserException, IOException, SmackException {
// XPP3 calling convention assert: Parser should be at start tag
ParserUtils.assertAtStartTag(parser);
final int initialDepth = parser.getDepth();
E e = parse(parser, initialDepth);
// XPP3 calling convention assert: Parser should be at end tag of the consumed/parsed element
ParserUtils.forwardToEndTagOfDepth(parser, initialDepth);
return e;
}
public abstract E parse(XmlPullParser parser, int initialDepth) throws XmlPullParserException, IOException, SmackException;;
}