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/*
* Copyright (c) 2013, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.xml.messaging.saaj.util.stax;
import com.sun.xml.messaging.saaj.soap.LazyEnvelope;
import javax.xml.namespace.NamespaceContext;
import javax.xml.namespace.QName;
import jakarta.xml.soap.SOAPException;
import javax.xml.stream.Location;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
/**
* "Hybrid" reader which
* @author desagar
*
*/
public class LazyEnvelopeStaxReader extends org.jvnet.staxex.util.DOMStreamReader {
// EnvelopeImpl env;
XMLStreamReader payloadReader = null;
boolean usePayloadReaderDelegate = false;
private QName bodyQName;
public LazyEnvelopeStaxReader(LazyEnvelope env) throws SOAPException, XMLStreamException {
super(env);
// this.env = env;
bodyQName = new QName(env.getNamespaceURI(), "Body");
payloadReader = env.getStaxBridge().getPayloadReader();
int eventType = getEventType();
while (eventType != START_ELEMENT) {
eventType = nextTag();
}
}
@Override
public Object getProperty(String name) throws IllegalArgumentException {
if (usePayloadReaderDelegate) return payloadReader.getProperty(name);
return super.getProperty(name);
}
@Override
public int next() throws XMLStreamException {
// boolean previouslyUsingPayloadReader = usePayloadReaderDelegate;
//call checkReaderStatus to advance to payloadReader if needed
checkReaderStatus(true);
if (usePayloadReaderDelegate) return payloadReader.getEventType();
//if we just moved to payload reader, don't advance the pointer
// if (usePayloadReaderDelegate && !previouslyUsingPayloadReader) return payloadReader.getEventType();
// if (usePayloadReaderDelegate) return payloadReader.next();
return getEventType();
}
@Override
public void require(int type, String namespaceURI, String localName)
throws XMLStreamException {
if (usePayloadReaderDelegate) payloadReader.require(type, namespaceURI, localName);
else super.require(type, namespaceURI, localName);
}
@Override
public String getElementText() throws XMLStreamException {
if (usePayloadReaderDelegate) return payloadReader.getElementText();
return super.getElementText();
}
@Override
public int nextTag() throws XMLStreamException {
if (usePayloadReaderDelegate) return payloadReader.nextTag();
return super.nextTag();
}
@Override
public boolean hasNext() throws XMLStreamException {
checkReaderStatus(false);
boolean hasNext;
if (usePayloadReaderDelegate) {
hasNext = payloadReader.hasNext();
} else {
hasNext = super.hasNext();
}
/*if (!hasNext && payloadReader != null) {
usePayloadReaderDelegate = true;
hasNext = payloadReader.hasNext();
}*/
return hasNext;
}
private void checkReaderStatus(boolean advanceToNext) throws XMLStreamException {
//if we are using payloadReader, make sure it is not exhausted
//if it is, return to DOM based reader for remaining end elements (body and envelope)
if (usePayloadReaderDelegate) {
if (!payloadReader.hasNext()) {
usePayloadReaderDelegate = false;
}
} else if (START_ELEMENT == getEventType()) {
//if not on payload reader, check if we need to switch to payload reader
//if the current event is the SOAP body element start,
//and the body is lazy, switch to the payload reader
if (bodyQName.equals(getName())) {
//if we are just switching to payload reader, don't advance...payload reader
//will already be on the first payload element
usePayloadReaderDelegate = true;
advanceToNext = false;
}
}
if (advanceToNext) {
if (usePayloadReaderDelegate) {
payloadReader.next();
} else {
super.next();
}
}
}
@Override
public void close() throws XMLStreamException {
if (usePayloadReaderDelegate) payloadReader.close();
else super.close();
}
@Override
public String getNamespaceURI(String prefix) {
if (usePayloadReaderDelegate) return payloadReader.getNamespaceURI(prefix);
return super.getNamespaceURI(prefix);
}
@Override
public boolean isStartElement() {
if (usePayloadReaderDelegate) return payloadReader.isStartElement();
return super.isStartElement();
}
@Override
public boolean isEndElement() {
if (usePayloadReaderDelegate) return payloadReader.isEndElement();
return super.isEndElement();
}
@Override
public boolean isCharacters() {
if (usePayloadReaderDelegate) return payloadReader.isCharacters();
return super.isEndElement();
}
@Override
public boolean isWhiteSpace() {
if (usePayloadReaderDelegate) return payloadReader.isWhiteSpace();
return super.isWhiteSpace();
}
@Override
public String getAttributeValue(String namespaceURI, String localName) {
if (usePayloadReaderDelegate) return payloadReader.getAttributeValue(namespaceURI, localName);
return super.getAttributeValue(namespaceURI, localName);
}
@Override
public int getAttributeCount() {
if (usePayloadReaderDelegate) return payloadReader.getAttributeCount();
return super.getAttributeCount();
}
@Override
public QName getAttributeName(int index) {
if (usePayloadReaderDelegate) return payloadReader.getAttributeName(index);
return super.getAttributeName(index);
}
@Override
public String getAttributeNamespace(int index) {
if (usePayloadReaderDelegate) return payloadReader.getAttributeNamespace(index);
return super.getAttributeNamespace(index);
}
@Override
public String getAttributeLocalName(int index) {
if (usePayloadReaderDelegate) return payloadReader.getAttributeLocalName(index);
return super.getAttributeLocalName(index);
}
@Override
public String getAttributePrefix(int index) {
if (usePayloadReaderDelegate) return payloadReader.getAttributePrefix(index);
return super.getAttributePrefix(index);
}
@Override
public String getAttributeType(int index) {
if (usePayloadReaderDelegate) return payloadReader.getAttributeType(index);
return super.getAttributeType(index);
}
@Override
public String getAttributeValue(int index) {
if (usePayloadReaderDelegate) return payloadReader.getAttributeValue(index);
return super.getAttributeValue(index);
}
@Override
public boolean isAttributeSpecified(int index) {
if (usePayloadReaderDelegate) return payloadReader.isAttributeSpecified(index);
return super.isAttributeSpecified(index);
}
@Override
public int getNamespaceCount() {
if (usePayloadReaderDelegate) return payloadReader.getNamespaceCount();
return super.getNamespaceCount();
}
@Override
public String getNamespacePrefix(int index) {
if (usePayloadReaderDelegate) return payloadReader.getNamespacePrefix(index);
return super.getNamespacePrefix(index);
}
@Override
public String getNamespaceURI(int index) {
if (usePayloadReaderDelegate) return payloadReader.getNamespaceURI(index);
return super.getNamespaceURI(index);
}
@Override
public NamespaceContext getNamespaceContext() {
if (usePayloadReaderDelegate) return payloadReader.getNamespaceContext();
return super.getNamespaceContext();
}
@Override
public int getEventType() {
if (usePayloadReaderDelegate) return payloadReader.getEventType();
return super.getEventType();
}
@Override
public String getText() {
if (usePayloadReaderDelegate) return payloadReader.getText();
return super.getText();
}
@Override
public char[] getTextCharacters() {
if (usePayloadReaderDelegate) return payloadReader.getTextCharacters();
return super.getTextCharacters();
}
@Override
public int getTextCharacters(int sourceStart, char[] target,
int targetStart, int length) throws XMLStreamException {
if (usePayloadReaderDelegate) return payloadReader.getTextCharacters(sourceStart, target, targetStart,
length);
return super.getTextCharacters(sourceStart, target, targetStart, length);
}
@Override
public int getTextStart() {
if (usePayloadReaderDelegate) return payloadReader.getTextStart();
return super.getTextStart();
}
@Override
public int getTextLength() {
if (usePayloadReaderDelegate) return payloadReader.getTextLength();
return super.getTextLength();
}
@Override
public String getEncoding() {
if (usePayloadReaderDelegate) return payloadReader.getEncoding();
return super.getEncoding();
}
@Override
public boolean hasText() {
if (usePayloadReaderDelegate) return payloadReader.hasText();
return super.hasText();
}
@Override
public Location getLocation() {
if (usePayloadReaderDelegate) return payloadReader.getLocation();
return super.getLocation();
}
@Override
public QName getName() {
if (usePayloadReaderDelegate) return payloadReader.getName();
return super.getName();
}
@Override
public String getLocalName() {
if (usePayloadReaderDelegate) return payloadReader.getLocalName();
return super.getLocalName();
}
@Override
public boolean hasName() {
if (usePayloadReaderDelegate) return payloadReader.hasName();
return super.hasName();
}
@Override
public String getNamespaceURI() {
if (usePayloadReaderDelegate) return payloadReader.getNamespaceURI();
return super.getNamespaceURI();
}
@Override
public String getPrefix() {
if (usePayloadReaderDelegate) return payloadReader.getPrefix();
return super.getPrefix();
}
@Override
public String getVersion() {
if (usePayloadReaderDelegate) return payloadReader.getVersion();
return super.getVersion();
}
@Override
public boolean isStandalone() {
if (usePayloadReaderDelegate) return payloadReader.isStandalone();
return super.isStandalone();
}
@Override
public boolean standaloneSet() {
if (usePayloadReaderDelegate) return payloadReader.standaloneSet();
return super.standaloneSet();
}
@Override
public String getCharacterEncodingScheme() {
if (usePayloadReaderDelegate) return payloadReader.getCharacterEncodingScheme();
return super.getCharacterEncodingScheme();
}
@Override
public String getPITarget() {
if (usePayloadReaderDelegate) return payloadReader.getPITarget();
return super.getPITarget();
}
@Override
public String getPIData() {
if (usePayloadReaderDelegate) return payloadReader.getPIData();
return super.getPIData();
}
}