Android XmlPullParser Value Get copyXML(XmlPullParser xmlPullParser, XmlSerializer xmlSerializer)

Description

Copy an XML fragment from a source (pull parser) to a destination (serializer), pulling all element namespaces into the empty prefix.

License

LGPL

Parameter

Parameter	Description
xmlPullParser	The pull parser for xml reading.
xmlSerializer	The serializer for xml writing.

Exception

Parameter	Description
XmlPullParserException	In case of invalid XML.
IOException	In case of an closes connection.

Declaration

public final static void copyXML(XmlPullParser xmlPullParser,
        XmlSerializer xmlSerializer) throws XmlPullParserException,
        IOException 

Method Source Code

//package com.java2s;
/*//ww w. j  a v  a 2 s.  c  o  m
 * Licensed under Apache License, Version 2.0 or LGPL 2.1, at your option.
 * --
 *
 * Copyright 2010 Rene Treffer
 *
 * 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.
 *
 * --
 *
 * Copyright (C) 2010 Rene Treffer
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
 */

import java.io.IOException;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import org.xmlpull.v1.XmlSerializer;

public class Main {
    /**
     * Copy an XML fragment from a source (pull parser) to a destination
     * (serializer), pulling all element namespaces into the empty prefix.
     * 
     * Errata: Some common XMPP servers (read: ejabberd) don't handle stanzas
     *         like <n0:iq to="romeo@example.com" xmlns:n0="jabber:client">
     *         this means we'll have to rename "n0" to "", which isn't the
     *         default behaviour.
     *
     * @param xmlPullParser The pull parser for xml reading.
     * @param xmlSerializer The serializer for xml writing.
     * @throws XmlPullParserException In case of invalid XML.
     * @throws IOException In case of an closes connection.
     */
    public final static void copyXML(XmlPullParser xmlPullParser,
            XmlSerializer xmlSerializer) throws XmlPullParserException,
            IOException {
        int startDepth = xmlPullParser.getDepth();
        String namespace = null;
        do {
            int type = xmlPullParser.next();
            switch (type) {
            case XmlPullParser.END_TAG:
                xmlSerializer.endTag(xmlPullParser.getNamespace(),
                        xmlPullParser.getName());
                break;
            case XmlPullParser.START_TAG:
                if (!xmlPullParser.getNamespace().equals(namespace)) {
                    namespace = xmlPullParser.getNamespace();
                    xmlSerializer.setPrefix("", namespace);
                }
                xmlSerializer.startTag(xmlPullParser.getNamespace(),
                        xmlPullParser.getName());
                int attributeCount = xmlPullParser.getAttributeCount();
                for (int i = 0; i < attributeCount; i++) {
                    xmlSerializer.attribute(
                            xmlPullParser.getAttributeNamespace(i),
                            xmlPullParser.getAttributeName(i),
                            xmlPullParser.getAttributeValue(i));
                }
                break;
            case XmlPullParser.TEXT:
                xmlSerializer.text(xmlPullParser.getText());
                break;
            case XmlPullParser.END_DOCUMENT:
                // We shouldnt see that!
                throw new XmlPullParserException(
                        "Unexpected end of stream.");
            default:
                throw new IllegalStateException(
                        "Unexpected pull parser type " + type);
            }
        } while (xmlPullParser.getDepth() > startDepth);
    }
}

Related

1. optAttr(final XmlPullParser pp, final String attrName, final String defaultValue)
2. optFloatAttr(final XmlPullParser pp, final String attrName, final float defaultValue)
3. optIntAttr(final XmlPullParser pp, final String attrName, final int defaultValue)
4. optSkip(final XmlPullParser pp, final String tagName)
5. attr(final XmlPullParser pp, final String attrName)
6. exit(final XmlPullParser pp, final String tagName)
7. floatAttr(final XmlPullParser pp, final String attrName)
8. intAttr(final XmlPullParser pp, final String attrName)