/*
* Copyright (C) 2004, 2005, 2006 Joe Walnes.
* Copyright (C) 2006, 2007, 2008 XStream Committers.
* All rights reserved.
*
* The software in this package is published under the terms of the BSD
* style license a copy of which has been included with this distribution in
* the LICENSE.txt file.
*
* Created on 08. March 2004 by Joe Walnes
*/
package com.thoughtworks.xstream.io.xml;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import org.xmlpull.mxp1.MXParser;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import com.thoughtworks.xstream.converters.ErrorWriter;
import com.thoughtworks.xstream.io.StreamException;
/**
* XStream reader that pulls directly from the stream using the XmlPullParser API.
*
* @author Joe Walnes
*/
public class XppReader extends AbstractPullReader {
private final XmlPullParser parser;
private final BufferedReader reader;
public XppReader(Reader reader) {
this(reader, new XmlFriendlyReplacer());
}
/**
* @since 1.2
*/
public XppReader(Reader reader, XmlFriendlyReplacer replacer) {
super(replacer);
try {
parser = createParser();
this.reader = new BufferedReader(reader);
parser.setInput(this.reader);
moveDown();
} catch (XmlPullParserException e) {
throw new StreamException(e);
}
}
/**
* To use another implementation of org.xmlpull.v1.XmlPullParser, override this method.
*/
protected XmlPullParser createParser() {
return new MXParser();
}
protected int pullNextEvent() {
try {
switch(parser.next()) {
case XmlPullParser.START_DOCUMENT:
case XmlPullParser.START_TAG:
return START_NODE;
case XmlPullParser.END_DOCUMENT:
case XmlPullParser.END_TAG:
return END_NODE;
case XmlPullParser.TEXT:
return TEXT;
case XmlPullParser.COMMENT:
return COMMENT;
default:
return OTHER;
}
} catch (XmlPullParserException e) {
throw new StreamException(e);
} catch (IOException e) {
throw new StreamException(e);
}
}
protected String pullElementName() {
return parser.getName();
}
protected String pullText() {
return parser.getText();
}
public String getAttribute(String name) {
return parser.getAttributeValue(null, escapeXmlName(name));
}
public String getAttribute(int index) {
return parser.getAttributeValue(index);
}
public int getAttributeCount() {
return parser.getAttributeCount();
}
public String getAttributeName(int index) {
return unescapeXmlName(parser.getAttributeName(index));
}
public void appendErrors(ErrorWriter errorWriter) {
errorWriter.add("line number", String.valueOf(parser.getLineNumber()));
}
public void close() {
try {
reader.close();
} catch (IOException e) {
throw new StreamException(e);
}
}
}