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Axis2 Data Binding module
/*
* 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 org.apache.axiom.ext.stax.datahandler.DataHandlerProvider;
import org.apache.axiom.ext.stax.datahandler.DataHandlerReader;
import org.apache.axiom.om.OMAttribute;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMNamespace;
import org.apache.axiom.util.stax.XMLStreamReaderUtils;
import org.apache.axis2.databinding.typemapping.SimpleTypeMapper;
import org.apache.axis2.databinding.utils.BeanUtil;
import org.apache.axis2.databinding.utils.ConverterUtil;
import org.apache.axis2.description.java2wsdl.TypeTable;
import javax.activation.DataHandler;
import javax.xml.namespace.NamespaceContext;
import javax.xml.namespace.QName;
import javax.xml.stream.Location;
import javax.xml.stream.XMLStreamException;
import java.util.*;
import java.util.concurrent.atomic.AtomicInteger;
import java.lang.reflect.Array;
/**
* This is the new implementation of the ADBpullaparser. The approach here is simple When the pull
* parser needs to generate events for a particular name-value(s) pair it always handes over
* (delegates) the task to another pull parser which knows how to deal with it The common types of
* name value pairs we'll come across are 1. String name/QName name - String value 2. String
* name/QName name - String[] value 3. OMElementkey - OMElement value 4. QName name/String name -
* ADBBean value 5. QName name/String name - Java bean 5. QName name/String name - Datahandler
*
* As for the attributes, these are the possible combinations in the array 1. String name/QName name
* - String value 2. OMAttributeKey - OMAttribute
*
* Note that certain array methods have been deliberately removed to avoid complications. The
* generated code will take the trouble to lay the elements of the array in the correct order
*
*
* Hence there will be a parser impl that knows how to handle these types, and this parent parser
* will always delegate these tasks to the child pullparasers in effect this is one huge state
* machine that has only a few states and delegates things down to the child parsers whenever
* possible
*
*/
public class ADBXMLStreamReaderImpl implements ADBXMLStreamReader, DataHandlerReader {
private static final AtomicInteger nsPrefix = new AtomicInteger();
private Object[] properties;
private Object[] attributes;
private QName elementQName;
//This is to store the QName which are in the typeTable after setting the correct prefix
private HashMap qnameMap = new HashMap();
//we always create a new namespace context
private ADBNamespaceContext namespaceContext = new ADBNamespaceContext();
private Map declaredNamespaceMap = new HashMap();
//states for this pullparser - it can only have four states
private static final int START_ELEMENT_STATE = 0;
private static final int END_ELEMENT_STATE = 1;
private static final int DELEGATED_STATE = 2;
private static final int TEXT_STATE = 3;
//integer field that keeps the state of this
//parser.
private int state = START_ELEMENT_STATE;
//reference to the child reader
private ADBXMLStreamReader childReader;
//current property index
//initialized at zero
private int currentPropertyIndex = 0;
//To keep element formdefault qualified or not
private boolean qualified = false;
//to keep the current types which are in AxisService
private TypeTable typeTable = null;
/*
* we need to pass in a namespace context since when delegated, we've no
* idea of the current namespace context. So it needs to be passed on
* here!
*/
public ADBXMLStreamReaderImpl(QName adbBeansQName,
Object[] properties,
Object[] attributes) {
//validate the lengths, since both the arrays are supposed
//to have
this.properties = properties;
this.elementQName = adbBeansQName;
this.attributes = attributes;
}
public ADBXMLStreamReaderImpl(QName adbBeansQName,
Object[] properties,
Object[] attributes,
TypeTable typeTable,
boolean qualified) {
this(adbBeansQName, properties, attributes);
this.qualified = qualified;
this.typeTable = typeTable;
if(this.typeTable!=null){
Map complexTypeMap = this.typeTable.getComplexSchemaMap();
if(complexTypeMap !=null){
Iterator keys = complexTypeMap.keySet().iterator();
while (keys.hasNext()) {
String key = (String) keys.next();
QName qname = (QName) complexTypeMap.get(key);
if(qname !=null){
String prefix =qname.getPrefix();
if(prefix == null || "".equals(prefix)){
prefix = getNextNSPrefix();
}
qname = new QName(qname.getNamespaceURI(),qname.getLocalPart(),prefix);
this.typeTable.getComplexSchemaMap().put(key,qname);
qnameMap.put(qname.getNamespaceURI(),prefix);
addToNsMap(prefix, qname.getNamespaceURI());
}
}
}
}
}
private static String getNextNSPrefix() {
return "ns" + nsPrefix.incrementAndGet();
}
/** add the namespace context */
public void addNamespaceContext(NamespaceContext nsContext) {
// register the namespace context passed in to this
this.namespaceContext.setParentNsContext(nsContext);
}
/**
* we need to split out the calling to the populate namespaces seperately since this needs to be
* done *after* setting the parent namespace context. We cannot assume it will happen at
* construction!
*/
public void init() {
// here we have an extra issue to attend to. we need to look at the
// prefixes and uris (the combination) and populate a hashmap of
// namespaces. The hashmap of namespaces will be used to serve the
// namespace context
populateNamespaceContext();
}
/**
* @param key
* @throws IllegalArgumentException
*/
public Object getProperty(String key) throws IllegalArgumentException {
return XMLStreamReaderUtils.processGetProperty(this, key);
}
@Override
public boolean isBinary() {
return state == DELEGATED_STATE && childReader instanceof DataHandlerReader && ((DataHandlerReader)childReader).isBinary();
}
@Override
public boolean isOptimized() {
return ((DataHandlerReader)childReader).isOptimized();
}
@Override
public boolean isDeferred() {
return ((DataHandlerReader)childReader).isDeferred();
}
@Override
public String getContentID() {
return ((DataHandlerReader)childReader).getContentID();
}
@Override
public DataHandler getDataHandler() throws XMLStreamException {
return ((DataHandlerReader)childReader).getDataHandler();
}
@Override
public DataHandlerProvider getDataHandlerProvider() {
return ((DataHandlerReader)childReader).getDataHandlerProvider();
}
public void require(int i, String string, String string1)
throws XMLStreamException {
throw new UnsupportedOperationException();
}
/**
* todo implement the right contract for this
*
* @throws XMLStreamException
*/
public String getElementText() throws XMLStreamException {
if (state == DELEGATED_STATE) {
return childReader.getElementText();
} else {
return null;
}
}
/**
* todo implement this
*
* @throws XMLStreamException
*/
public int nextTag() throws XMLStreamException {
return 0;
}
/** @throws XMLStreamException */
public boolean hasNext() throws XMLStreamException {
if (state == DELEGATED_STATE) {
if (childReader.isDone()) {
//the child reader is done. We shouldn't be getting the
//hasnext result from the child pullparser then
return true;
} else {
return childReader.hasNext();
}
} else {
return (state == START_ELEMENT_STATE
|| state == TEXT_STATE);
}
}
public void close() throws XMLStreamException {
//do nothing here - we have no resources to free
}
public String getNamespaceURI(String prefix) {
return namespaceContext.getNamespaceURI(prefix);
}
public boolean isStartElement() {
if (state == START_ELEMENT_STATE) {
return true;
} else if (state == END_ELEMENT_STATE) {
return false;
}
return childReader.isStartElement();
}
public boolean isEndElement() {
if (state == START_ELEMENT_STATE) {
return false;
} else if (state == END_ELEMENT_STATE) {
return true;
}
return childReader.isEndElement();
}
public boolean isCharacters() {
if (state == START_ELEMENT_STATE || state == END_ELEMENT_STATE) {
return false;
}
return childReader.isCharacters();
}
public boolean isWhiteSpace() {
if (state == START_ELEMENT_STATE || state == END_ELEMENT_STATE) {
return false;
}
return childReader.isWhiteSpace();
}
///////////////////////////////////////////////////////////////////////////
/// attribute handling
///////////////////////////////////////////////////////////////////////////
public String getAttributeValue(String nsUri, String localName) {
int attribCount = getAttributeCount();
String returnValue = null;
QName attribQualifiedName;
for (int i = 0; i < attribCount; i++) {
attribQualifiedName = getAttributeName(i);
if (nsUri == null) {
if (localName.equals(attribQualifiedName.getLocalPart())) {
returnValue = getAttributeValue(i);
break;
}
} else {
if (localName.equals(attribQualifiedName.getLocalPart())
&& nsUri.equals(attribQualifiedName.getNamespaceURI())) {
returnValue = getAttributeValue(i);
break;
}
}
}
return returnValue;
}
public int getAttributeCount() {
return (state == DELEGATED_STATE) ?
childReader.getAttributeCount() :
((attributes != null) && (state == START_ELEMENT_STATE) ? attributes.length / 2 :
0);
}
/** @param i */
public QName getAttributeName(int i) {
if (state == DELEGATED_STATE) {
return childReader.getAttributeName(i);
} else if (state == START_ELEMENT_STATE) {
if (attributes == null) {
return null;
} else {
if ((i >= (attributes.length / 2)) || i < 0) { //out of range
return null;
} else {
//get the attribute pointer
Object attribPointer = attributes[i * 2];
//case one - attrib name is null
//this should be the pointer to the OMAttribute then
if (attribPointer == null) {
Object omAttribObj = attributes[(i * 2) + 1];
if (omAttribObj == null ||
!(omAttribObj instanceof OMAttribute)) {
// wrong object set to have in the attrib array -
// this should have been detected by now but just be
// sure
throw new UnsupportedOperationException();
}
OMAttribute att = (OMAttribute)omAttribObj;
return att.getQName();
} else if (attribPointer instanceof OMAttribKey) {
Object omAttribObj = attributes[(i * 2) + 1];
if (omAttribObj == null ||
!(omAttribObj instanceof OMAttribute)) {
// wrong object set to have in the attrib array -
// this should have been detected by now but just be
// sure
throw new UnsupportedOperationException();
}
OMAttribute att = (OMAttribute)omAttribObj;
return att.getQName();
//case two - attrib name is a plain string
} else if (attribPointer instanceof String) {
return new QName((String)attribPointer);
} else if (attribPointer instanceof QName) {
return (QName)attribPointer;
} else {
return null;
}
}
}
} else {
throw new IllegalStateException();//as per the api contract
}
}
public String getAttributeNamespace(int i) {
if (state == DELEGATED_STATE) {
return childReader.getAttributeNamespace(i);
} else if (state == START_ELEMENT_STATE) {
QName name = getAttributeName(i);
if (name == null) {
return null;
} else {
return name.getNamespaceURI();
}
} else {
throw new IllegalStateException();
}
}
public String getAttributeLocalName(int i) {
if (state == DELEGATED_STATE) {
return childReader.getAttributeLocalName(i);
} else if (state == START_ELEMENT_STATE) {
QName name = getAttributeName(i);
if (name == null) {
return null;
} else {
return name.getLocalPart();
}
} else {
throw new IllegalStateException();
}
}
public String getAttributePrefix(int i) {
if (state == DELEGATED_STATE) {
return childReader.getAttributePrefix(i);
} else if (state == START_ELEMENT_STATE) {
QName name = getAttributeName(i);
if (name == null) {
return null;
} else {
return name.getPrefix();
}
} else {
throw new IllegalStateException();
}
}
public String getAttributeType(int i) {
return null; //not supported
}
public String getAttributeValue(int i) {
if (state == DELEGATED_STATE) {
return childReader.getAttributeValue(i);
} else if (state == START_ELEMENT_STATE) {
if (attributes == null) {
return null;
} else {
if ((i >= (attributes.length / 2)) || i < 0) { //out of range
return null;
} else {
//get the attribute pointer
Object attribPointer = attributes[i * 2];
Object omAttribObj = attributes[(i * 2) + 1];
//case one - attrib name is null
//this should be the pointer to the OMAttribute then
if (attribPointer == null) {
if (omAttribObj == null ||
!(omAttribObj instanceof OMAttribute)) {
// wrong object set to have in the attrib array -
// this should have been detected by now but just be
// sure
throw new UnsupportedOperationException();
}
OMAttribute att = (OMAttribute)omAttribObj;
return att.getAttributeValue();
} else if (attribPointer instanceof OMAttribKey) {
if (omAttribObj == null ||
!(omAttribObj instanceof OMAttribute)) {
// wrong object set to have in the attrib array -
// this should have been detected by now but just be
// sure
throw new UnsupportedOperationException();
}
OMAttribute att = (OMAttribute)omAttribObj;
return att.getAttributeValue();
//case two - attrib name is a plain string
} else if (attribPointer instanceof String) {
return (String)omAttribObj;
} else if (attribPointer instanceof QName) {
if (omAttribObj instanceof QName){
QName attributeQName = (QName) omAttribObj;
// first check it is already there if not add the namespace.
String prefix = namespaceContext.getPrefix(attributeQName.getNamespaceURI());
if (prefix == null){
prefix = getNextNSPrefix();
addToNsMap(prefix,attributeQName.getNamespaceURI());
}
String attributeValue = null;
if (prefix.equals("")){
// i.e. this is the default namespace
attributeValue = attributeQName.getLocalPart();
} else {
attributeValue = prefix + ":" + attributeQName.getLocalPart();
}
return attributeValue;
} else {
return (String)omAttribObj;
}
} else {
return null;
}
}
}
} else {
throw new IllegalStateException();
}
}
public boolean isAttributeSpecified(int i) {
return false; //not supported
}
///////////////////////////////////////////////////////////////////////////
////////////// end of attribute handling
///////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////
////////////// namespace handling
////////////////////////////////////////////////////////////////////////////
public int getNamespaceCount() {
if (state == DELEGATED_STATE) {
return childReader.getNamespaceCount();
} else {
return declaredNamespaceMap.size();
}
}
/** @param i */
public String getNamespacePrefix(int i) {
if (state == DELEGATED_STATE) {
return childReader.getNamespacePrefix(i);
} else if (state != TEXT_STATE) {
//order the prefixes
String[] prefixes = makePrefixArray();
if ((i >= prefixes.length) || (i < 0)) {
return null;
} else {
return prefixes[i];
}
} else {
throw new IllegalStateException();
}
}
/** Get the prefix list from the hastable and take that into an array */
private String[] makePrefixArray() {
String[] prefixes =
(String[])declaredNamespaceMap.keySet().
toArray(new String[declaredNamespaceMap.size()]);
Arrays.sort(prefixes);
return prefixes;
}
public String getNamespaceURI(int i) {
if (state == DELEGATED_STATE) {
return childReader.getNamespaceURI(i);
} else if (state != TEXT_STATE) {
String namespacePrefix = getNamespacePrefix(i);
return namespacePrefix == null ? null :
(String)declaredNamespaceMap.get(namespacePrefix);
} else {
throw new IllegalStateException();
}
}
public NamespaceContext getNamespaceContext() {
if (state == DELEGATED_STATE) {
return childReader.getNamespaceContext();
} else {
return namespaceContext;
}
}
///////////////////////////////////////////////////////////////////////////
///////// end of namespace handling
///////////////////////////////////////////////////////////////////////////
public int getEventType() {
if (state == START_ELEMENT_STATE) {
return START_ELEMENT;
} else if (state == END_ELEMENT_STATE) {
return END_ELEMENT;
} else { // this is the delegated state
return childReader.getEventType();
}
}
public String getText() {
if (state == DELEGATED_STATE) {
return childReader.getText();
} else if (state == TEXT_STATE) {
Object property = properties[currentPropertyIndex - 1];
if (property instanceof DataHandler){
return ConverterUtil.getStringFromDatahandler((DataHandler)property);
} else {
return (String)properties[currentPropertyIndex - 1];
}
} else {
throw new IllegalStateException();
}
}
public char[] getTextCharacters() {
if (state == DELEGATED_STATE) {
return childReader.getTextCharacters();
} else if (state == TEXT_STATE) {
return properties[currentPropertyIndex - 1] == null ? new char[0] :
((String)properties[currentPropertyIndex - 1]).toCharArray();
} else {
throw new IllegalStateException();
}
}
public int getTextCharacters(int i, char[] chars, int i1, int i2)
throws XMLStreamException {
if (state == DELEGATED_STATE) {
return childReader.getTextCharacters(i, chars, i1, i2);
} else if (state == TEXT_STATE) {
//todo - implement this
return 0;
} else {
throw new IllegalStateException();
}
}
public int getTextStart() {
if (state == DELEGATED_STATE) {
return childReader.getTextStart();
} else if (state == TEXT_STATE) {
return 0;//assume text always starts at 0
} else {
throw new IllegalStateException();
}
}
public int getTextLength() {
if (state == DELEGATED_STATE) {
return childReader.getTextLength();
} else if (state == TEXT_STATE) {
return 0;//assume text always starts at 0
} else {
throw new IllegalStateException();
}
}
public String getEncoding() {
if (state == DELEGATED_STATE) {
return childReader.getEncoding();
} else {
//we've no idea what the encoding is going to be in this case
//perhaps we ought to return some constant here, which the user might
//have access to change!
return null;
}
}
/** check the validity of this implementation */
public boolean hasText() {
if (state == DELEGATED_STATE) {
return childReader.hasText();
} else return state == TEXT_STATE;
}
/**
*/
public Location getLocation() {
//return a default location
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() {
if (state == DELEGATED_STATE) {
return childReader.getName();
} else if (state != TEXT_STATE) {
return elementQName;
} else {
throw new IllegalStateException();
}
}
public String getLocalName() {
if (state == DELEGATED_STATE) {
return childReader.getLocalName();
} else if (state != TEXT_STATE) {
return elementQName.getLocalPart();
} else {
throw new IllegalStateException();
}
}
public boolean hasName() {
//since this parser always has a name, the hasname
//has to return true if we are still navigating this element
//if not we should ask the child reader for it.
if (state == DELEGATED_STATE) {
return childReader.hasName();
} else return state != TEXT_STATE;
}
public String getNamespaceURI() {
if (state == DELEGATED_STATE) {
return childReader.getNamespaceURI();
} else if (state == TEXT_STATE) {
return null;
} else {
return elementQName.getNamespaceURI();
}
}
public String getPrefix() {
if (state == DELEGATED_STATE) {
return childReader.getPrefix();
} else if (state == TEXT_STATE) {
return null;
} else {
String prefix = elementQName.getPrefix();
return "".equals(prefix) ? null : prefix;
}
}
public String getVersion() {
return null;
}
public boolean isStandalone() {
return true;
}
public boolean standaloneSet() {
return true;
}
public String getCharacterEncodingScheme() {
return null; //todo - should we return something for this ?
}
public String getPITarget() {
throw new UnsupportedOperationException("Yet to be implemented !!");
}
public String getPIData() {
throw new UnsupportedOperationException("Yet to be implemented !!");
}
///////////////////////////////////////////////////////////////////////////
/// Other utility methods
//////////////////////////////////////////////////////////////////////////
/** Populates a namespace context */
private void populateNamespaceContext() {
//first add the current element namespace to the namespace context
//declare it if not found
addToNsMap(elementQName.getPrefix(), elementQName.getNamespaceURI());
//traverse through the attributes and populate the namespace context
//the attrib list can be of many combinations
// the valid combinations are
// String - String
// QName - QName
// null - OMAttribute
if (attributes != null) {
for (int i = 0; i < attributes.length; i = i + 2) { //jump in two
Object attribName = attributes[i];
if (attribName == null) {
//this should be the OMAttrib case!
OMAttribute OMAttrib = (OMAttribute)attributes[i + 1];
OMNamespace namespace = OMAttrib.getNamespace();
if (namespace != null) {
addToNsMap(namespace.getPrefix(),
namespace.getNamespaceURI());
}
} else if (attribName instanceof OMAttribKey) {
//this is definitely the OMAttribute case
OMAttribute OMAttrib = (OMAttribute)attributes[i + 1];
OMNamespace namespace = OMAttrib.getNamespace();
if (namespace != null) {
addToNsMap(namespace.getPrefix(),
namespace.getNamespaceURI());
}
} else if (attribName instanceof String) {
//ignore this case - Nothing to do
} else if (attribName instanceof QName) {
QName attribQName = ((QName)attribName);
addToNsMap(attribQName.getPrefix(),
attribQName.getNamespaceURI());
}
}
}
}
/**
* @param prefix
* @param uri
*/
private void addToNsMap(String prefix, String uri) {
if (!uri.equals(namespaceContext.getNamespaceURI(prefix))) {
namespaceContext.pushNamespace(prefix, uri);
declaredNamespaceMap.put(prefix, uri);
}
}
/**
* By far this should be the most important method in this class this method changes the state
* of the parser
*/
public int next() throws XMLStreamException {
int returnEvent = -1; //invalid state is the default state
switch (state) {
case START_ELEMENT_STATE:
//current element is start element. We should be looking at the
//property list and making a pullparser for the property value
if (properties == null || properties.length == 0) {
//no properties - move to the end element state straightaway
state = END_ELEMENT_STATE;
returnEvent = END_ELEMENT;
} else {
//there are properties. now we should delegate this task to a
//child reader depending on the property type
returnEvent = processProperties();
}
break;
case END_ELEMENT_STATE:
//we've reached the end element already. If the user tries to push
// further ahead then it is an exception
throw new XMLStreamException(
"Trying to go beyond the end of the pullparser");
case DELEGATED_STATE:
if (childReader.isDone()) {
//we've reached the end!
if (currentPropertyIndex > (properties.length - 1)) {
state = END_ELEMENT_STATE;
returnEvent = END_ELEMENT;
} else {
returnEvent = processProperties();
}
} else {
returnEvent = childReader.next();
}
break;
case TEXT_STATE:
// if there are any more event we should be delegating to
// processProperties. if not we just return an end element
if (currentPropertyIndex > (properties.length - 1)) {
state = END_ELEMENT_STATE;
returnEvent = END_ELEMENT;
} else {
returnEvent = processProperties();
}
break;
}
return returnEvent;
}
/**
* A convenient method to reuse the properties
*
* @return event to be thrown
* @throws XMLStreamException
*/
private int processProperties() throws XMLStreamException {
//move to the next property depending on the current property
//index
Object propPointer = properties[currentPropertyIndex];
QName propertyQName = null;
boolean textFound = false;
if (propPointer == null) {
throw new XMLStreamException("property key cannot be null!");
} else if (propPointer instanceof String) {
// propPointer being a String has a special case
// that is it can be a the special constant ELEMENT_TEXT that
// says this text event
if (ELEMENT_TEXT.equals(propPointer)) {
textFound = true;
} else {
propertyQName = new QName((String)propPointer);
}
} else if (propPointer instanceof QName) {
propertyQName = (QName)propPointer;
} else if (propPointer instanceof OMElementKey) {
// ah - in this case there's nothing to be done
//about the propertyQName in this case - we'll just leave
//it as it is
} else {
//oops - we've no idea what kind of key this is
throw new XMLStreamException(
"unidentified property key!!!" + propPointer);
}
if(propertyQName!=null){
String prefix = (String) qnameMap.get(propertyQName.getNamespaceURI());
if(prefix!=null){
propertyQName = new QName(propertyQName.getNamespaceURI(),propertyQName.getLocalPart(),prefix);
}
}
//ok! we got the key. Now look at the value
Object propertyValue = properties[currentPropertyIndex + 1];
//cater for the special case now
if (textFound) {
//no delegation here - make the parser null and immediately
//return with the event characters
childReader = null;
state = TEXT_STATE;
currentPropertyIndex = currentPropertyIndex + 2;
return CHARACTERS;
} else if (propertyValue == null) {
//if the value is null we delegate the work to a nullable
// parser
childReader = new NullXMLStreamReader(propertyQName);
childReader.addNamespaceContext(this.namespaceContext);
childReader.init();
//we've a special pullparser for a datahandler!
} else if (propertyValue instanceof DataHandler) {
childReader = new ADBDataHandlerStreamReader(propertyQName,
(DataHandler)propertyValue);
childReader.addNamespaceContext(this.namespaceContext);
childReader.init();
} else if (propertyValue instanceof String) {
//strings are handled by the NameValuePairStreamReader
childReader =
new NameValuePairStreamReader(propertyQName,
(String)propertyValue);
childReader.addNamespaceContext(this.namespaceContext);
childReader.init();
} else if (propertyValue instanceof Integer
|| propertyValue instanceof Long
|| propertyValue instanceof Double
|| propertyValue instanceof Float
|| propertyValue instanceof Character
|| propertyValue instanceof Short) {
//all primitive wrapped generic type instances are converted to Strings and handled by the
// NameValuePairStreamReader
childReader =
new NameValuePairStreamReader(propertyQName,
String.valueOf(propertyValue));
childReader.addNamespaceContext(this.namespaceContext);
childReader.init();
} else if (propertyValue.getClass().isArray()) {
// this is an arrary object and we need to get the pull parser for that
int length = Array.getLength(propertyValue);
if (length == 0) {
//advance the index
currentPropertyIndex = currentPropertyIndex + 2;
return processProperties();
} else {
List objects = new ArrayList();
Object valueObject = null;
for (int i = 0; i < length; i++) {
//for innter Arrary Complex types we use the special local name array
objects.add(new QName(propertyQName.getNamespaceURI(), "array"));
valueObject = Array.get(propertyValue, i);
if ((valueObject != null) && SimpleTypeMapper.isSimpleType(valueObject)){
objects.add(SimpleTypeMapper.getStringValue(valueObject));
} else {
objects.add(valueObject);
}
}
childReader = new ADBXMLStreamReaderImpl(propertyQName,
objects.toArray(), new ArrayList().toArray(), typeTable, qualified);
}
} else if (propertyValue instanceof OMElement) {
//OMElements do not provide the kind of parser we need
//there is no other option than wrapping
childReader = new WrappingXMLStreamReader(
((OMElement)propertyValue).getXMLStreamReader());
//we cannot register the namespace context here!!
} else {
//all special possiblilities has been tried! Let's treat
//the thing as a bean and try generating events from it
childReader = (ADBXMLStreamReader)
BeanUtil.getPullParser(propertyValue,
propertyQName, typeTable, qualified, false);
//we cannot register the namespace context here
}
//set the state here
state = DELEGATED_STATE;
//we are done with the delegation
//increment the property index
currentPropertyIndex = currentPropertyIndex + 2;
// If necessary, discard the START_DOCUMENT element (AXIS2-4271)
int eventType = childReader.getEventType();
return eventType == START_DOCUMENT ? childReader.next() : eventType;
}
/** are we done ? */
public boolean isDone() {
return (state == END_ELEMENT_STATE);
}
}