org.apache.axis2.databinding.utils.reader.NullXMLStreamReader Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.axis2.databinding.utils.reader;
import javax.xml.namespace.NamespaceContext;
import javax.xml.namespace.QName;
import javax.xml.stream.Location;
import javax.xml.stream.XMLStreamException;
public class NullXMLStreamReader implements ADBXMLStreamReader {
private QName outerQName = null;
private static final int START_ELEMENT_STATE = 1;
private static final int END_ELEMENT_STATE = 2;
private static final QName NIL_QNAME =
new QName("http://www.w3.org/2001/XMLSchema-instance", "nil", "xsi");
private static final String NIL_VALUE_TRUE = "true";
private int currentState = START_ELEMENT;
public NullXMLStreamReader(QName outerQName) {
this.outerQName = outerQName;
}
public Object getProperty(String key) throws IllegalArgumentException {
//since optimization is a global property
//we've to implement it everywhere
if (OPTIMIZATION_ENABLED.equals(key)) {
return Boolean.TRUE;
} else {
return null;
}
}
public int next() throws XMLStreamException {
int returnEvent = START_DOCUMENT;
switch (currentState) {
case START_ELEMENT_STATE:
currentState = END_ELEMENT_STATE;
returnEvent = END_ELEMENT;
break;
case END_ELEMENT_STATE:
throw new XMLStreamException("parser completed!");
}
return returnEvent;
}
public void require(int i, String string, String string1) throws XMLStreamException {
//nothing
}
public String getElementText() throws XMLStreamException {
return null;
}
public int nextTag() throws XMLStreamException {
throw new UnsupportedOperationException();
}
public boolean hasNext() throws XMLStreamException {
return (currentState != END_ELEMENT_STATE);
}
public void close() throws XMLStreamException {
//do nothing
}
public String getNamespaceURI(String string) {
if (outerQName.getPrefix() != null &&
outerQName.getPrefix().equals(string)) {
return outerQName.getNamespaceURI();
} else {
return null;
}
}
public boolean isStartElement() {
return (currentState == START_ELEMENT_STATE);
}
public boolean isEndElement() {
return (currentState == END_ELEMENT_STATE);
}
public boolean isCharacters() {
return false;
}
public boolean isWhiteSpace() {
return false;
}
public String getAttributeValue(String string, String string1) {
if (string == null) {//null namespace - ignore it
if (NIL_QNAME.getLocalPart().equals(string1)) {
return NIL_VALUE_TRUE;
}
}
return null;
}
public int getAttributeCount() {
return 1;
}
public QName getAttributeName(int i) {
return (i == 0) ? NIL_QNAME : null;
}
public String getAttributeNamespace(int i) {
return (i == 0) ? NIL_QNAME.getNamespaceURI() : null;
}
public String getAttributeLocalName(int i) {
return (i == 0) ? NIL_QNAME.getLocalPart() : null;
}
public String getAttributePrefix(int i) {
return (i == 0) ? NIL_QNAME.getPrefix() : null;
}
public String getAttributeType(int i) {
throw new UnsupportedOperationException();
}
public String getAttributeValue(int i) {
return (i == 0) ? NIL_VALUE_TRUE : null;
}
public boolean isAttributeSpecified(int i) {
return (i == 0);
}
public int getNamespaceCount() {
return 0;
}
public String getNamespacePrefix(int i) {
return null;
}
public String getNamespaceURI(int i) {
return null;
}
public NamespaceContext getNamespaceContext() {
throw new UnsupportedOperationException();
}
public int getEventType() {
int returnEvent = START_DOCUMENT;
switch (currentState) {
case START_ELEMENT_STATE:
returnEvent = START_ELEMENT;
break;
case END_ELEMENT_STATE:
returnEvent = END_ELEMENT;
break;
}
return returnEvent;
}
public String getText() {
return null;
}
public char[] getTextCharacters() {
return new char[0]; //To change body of implemented methods use File | Settings | File Templates.
}
public int getTextCharacters(int i, char[] chars, int i1, int i2) throws XMLStreamException {
return 0;
}
public int getTextStart() {
return 0;
}
public int getTextLength() {
return 0;
}
public String getEncoding() {
return null;
}
public boolean hasText() {
return false;
}
public Location getLocation() {
return new Location() {
public int getLineNumber() {
return 0;
}
public int getColumnNumber() {
return 0;
}
public int getCharacterOffset() {
return 0;
}
public String getPublicId() {
return null;
}
public String getSystemId() {
return null;
}
};
}
public QName getName() {
return outerQName;
}
public String getLocalName() {
return outerQName.getLocalPart();
}
public boolean hasName() {
return true;
}
public String getNamespaceURI() {
return outerQName.getNamespaceURI();
}
public String getPrefix() {
return outerQName.getPrefix();
}
public String getVersion() {
throw new UnsupportedOperationException();
}
public boolean isStandalone() {
throw new UnsupportedOperationException();
}
public boolean standaloneSet() {
throw new UnsupportedOperationException();
}
public String getCharacterEncodingScheme() {
throw new UnsupportedOperationException();
}
public String getPITarget() {
throw new UnsupportedOperationException();
}
public String getPIData() {
throw new UnsupportedOperationException();
}
public boolean isDone() {
return (currentState == END_ELEMENT_STATE);
}
public void addNamespaceContext(NamespaceContext nsContext) {
//To change body of implemented methods use File | Settings | File Templates.
}
public void init() {
//To change body of implemented methods use File | Settings | File Templates.
}
}