95 lines
3.7 KiB
Java
95 lines
3.7 KiB
Java
/**
|
|
*
|
|
* Copyright 2017 Paul Schaub
|
|
*
|
|
* 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.jingle_filetransfer.provider;
|
|
|
|
import static org.xmlpull.v1.XmlPullParser.END_TAG;
|
|
import static org.xmlpull.v1.XmlPullParser.START_TAG;
|
|
|
|
import java.io.IOException;
|
|
import java.text.ParseException;
|
|
|
|
import org.jivesoftware.smack.provider.ExtensionElementProvider;
|
|
import org.jivesoftware.smackx.hashes.element.HashElement;
|
|
import org.jivesoftware.smackx.hashes.provider.HashElementProvider;
|
|
import org.jivesoftware.smackx.jingle.element.JingleContent;
|
|
import org.jivesoftware.smackx.jingle_filetransfer.element.Checksum;
|
|
import org.jivesoftware.smackx.jingle_filetransfer.element.JingleFileTransferChild;
|
|
import org.jivesoftware.smackx.jingle_filetransfer.element.Range;
|
|
|
|
import org.xmlpull.v1.XmlPullParser;
|
|
import org.xmlpull.v1.XmlPullParserException;
|
|
|
|
/**
|
|
* Provider for the Checksum element.
|
|
*/
|
|
public class ChecksumProvider extends ExtensionElementProvider<Checksum> {
|
|
@Override
|
|
public Checksum parse(XmlPullParser parser, int initialDepth) throws XmlPullParserException, IOException, ParseException {
|
|
JingleContent.Creator creator = null;
|
|
String creatorString = parser.getAttributeValue(null, Checksum.ATTR_CREATOR);
|
|
if (creatorString != null) {
|
|
creator = JingleContent.Creator.valueOf(creatorString);
|
|
}
|
|
String name = parser.getAttributeValue(null, Checksum.ATTR_NAME);
|
|
|
|
|
|
JingleFileTransferChild.Builder cb = JingleFileTransferChild.getBuilder();
|
|
HashElement hashElement = null;
|
|
Range range = null;
|
|
|
|
boolean go = true;
|
|
while (go) {
|
|
int tag = parser.nextTag();
|
|
String n = parser.getText();
|
|
|
|
if (tag == START_TAG) {
|
|
switch (n) {
|
|
case HashElement.ELEMENT:
|
|
hashElement = new HashElementProvider().parse(parser);
|
|
break;
|
|
|
|
case Range.ELEMENT:
|
|
String offset = parser.getAttributeValue(null, Range.ATTR_OFFSET);
|
|
String length = parser.getAttributeValue(null, Range.ATTR_LENGTH);
|
|
int o = offset == null ? 0 : Integer.parseInt(offset);
|
|
int l = length == null ? -1 : Integer.parseInt(length);
|
|
range = new Range(o, l);
|
|
}
|
|
} else if (tag == END_TAG) {
|
|
switch (n) {
|
|
case Range.ELEMENT:
|
|
if (hashElement != null && range != null) {
|
|
range = new Range(range.getOffset(), range.getLength(), hashElement);
|
|
hashElement = null;
|
|
}
|
|
break;
|
|
|
|
case JingleFileTransferChild.ELEMENT:
|
|
if (hashElement != null) {
|
|
cb.setHash(hashElement);
|
|
}
|
|
if (range != null) {
|
|
cb.setRange(range);
|
|
}
|
|
go = false;
|
|
}
|
|
}
|
|
}
|
|
return new Checksum(creator, name, cb.build());
|
|
}
|
|
}
|