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The following commit(s) were added to refs/heads/master by this push:
new 16e832e71e AXIS2-6081 JSON with XML Stream API, support XML attributes
in XmlNodeGenerator
16e832e71e is described below
commit 16e832e71ef809ddd85de386b43719575d0a7b7c
Author: Robert Lazarski <robertlazar...@gmail.com>
AuthorDate: Thu Feb 27 05:31:44 2025 -1000
AXIS2-6081 JSON with XML Stream API, support XML attributes in
XmlNodeGenerator
---
.../axis2/json/factory/XmlNodeGenerator.java | 63 ++++++++++++++++-
.../axis2/json/moshi/MoshiXMLStreamReader.java | 79 +++++++++++++++++-----
2 files changed, 123 insertions(+), 19 deletions(-)
diff --git
a/modules/json/src/org/apache/axis2/json/factory/XmlNodeGenerator.java
b/modules/json/src/org/apache/axis2/json/factory/XmlNodeGenerator.java
index 7c65d2b7fe..c125e4d01b 100644
--- a/modules/json/src/org/apache/axis2/json/factory/XmlNodeGenerator.java
+++ b/modules/json/src/org/apache/axis2/json/factory/XmlNodeGenerator.java
@@ -22,7 +22,12 @@ package org.apache.axis2.json.factory;
import org.apache.axis2.AxisFault;
import org.apache.ws.commons.schema.utils.XmlSchemaRef;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
import org.apache.ws.commons.schema.XmlSchema;
+import org.apache.ws.commons.schema.XmlSchemaAttribute;
+import org.apache.ws.commons.schema.XmlSchemaAttributeOrGroupRef;
import org.apache.ws.commons.schema.XmlSchemaComplexType;
import org.apache.ws.commons.schema.XmlSchemaElement;
import org.apache.ws.commons.schema.XmlSchemaParticle;
@@ -32,12 +37,15 @@ import org.apache.ws.commons.schema.XmlSchemaSimpleType;
import org.apache.ws.commons.schema.XmlSchemaType;
import javax.xml.namespace.QName;
+import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;
public class XmlNodeGenerator {
+ private static final Log log = LogFactory.getLog(XmlNodeGenerator.class);
+
List<XmlSchema> xmlSchemaList;
QName elementQname;
@@ -45,6 +53,7 @@ public class XmlNodeGenerator {
private XmlNode mainXmlNode;
Queue<JsonObject> queue = new LinkedList<JsonObject>();
+ Queue<JsonObject> attribute_queue = new LinkedList<JsonObject>();
public XmlNodeGenerator(List<XmlSchema> xmlSchemaList, QName elementQname)
{
this.xmlSchemaList = xmlSchemaList;
@@ -84,6 +93,7 @@ public class XmlNodeGenerator {
}
private void processElement(XmlSchemaElement element, XmlNode parentNode ,
XmlSchema schema) throws AxisFault {
+ log.debug("XmlNodeGenerator.processElement() found parentNode node
name: " + parentNode.getName() + " , isAttribute: " + parentNode.isAttribute()
+ " , element name: " + element.getName());
String targetNamespace = schema.getTargetNamespace();
XmlNode xmlNode;
QName schemaTypeName = element.getSchemaTypeName();
@@ -147,6 +157,48 @@ public class XmlNodeGenerator {
}
}
}
+ /*
+ TODO: attribute support Proof of Concept (POC) by adding currency
attribute to:
+
+
samples/quickstartadb/resources/META-INF/StockQuoteService.wsdl:
+
+ <xs:element name="getPrice">
+ <xs:complexType>
+ <xs:sequence>
+ <xs:element name="symbol"
nillable="true" type="xs:string"/>
+ </xs:sequence>
+ <xs:attribute name="currency" type="xs:string"
use="required"/>
+ </xs:complexType>
+ </xs:element>
+
+ resulting in this SOAP Envelope:
+
+ <soapenv:Envelope
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/";><soapenv:Header/><soapenv:Body><ns1:getPrice
xmlns:ns1="http://quickstart.samples/xsd";
ns1:currency="USD"><ns1:symbol>ABC</ns1:symbol></ns1:getPrice></soapenv:Body></soapenv:Envelope>
+
+ Below, add complexType.getAttributes() code to support this
JSON:
+
+ { "getPrice" : {"symbol": "IBM","currency":USD}}
+
+ Possibly using @ as @currency to flag a variable name as as
attribute.
+
+ One thing to note is XmlNode has isAttribute() but was never
used
+ */
+ if (complexType.getAttributes() != null &&
complexType.getAttributes().size() > 0) {
+ log.debug("XmlNodeGenerator.processSchemaType() found
attribute size from complexType: " + complexType.getAttributes().size());
+ List<XmlSchemaAttributeOrGroupRef> list =
complexType.getAttributes();
+ for (XmlSchemaAttributeOrGroupRef ref : list) {
+ XmlSchemaAttribute xsa = (XmlSchemaAttribute)ref;
+ String name = xsa.getName();
+ QName schemaTypeName = xsa.getSchemaTypeName();
+ if (schema != null && schema.getTargetNamespace() != null
&& schemaTypeName != null && schemaTypeName.getLocalPart() != null) {
+ log.debug("XmlNodeGenerator.processSchemaType() found
attribute name from complexType: " + name + " , adding it to parentNode");
+ XmlNode xmlNode = new XmlNode(name,
schema.getTargetNamespace(), true, false, schemaTypeName.getLocalPart());
+ parentNode.addChildToList(xmlNode);
+ } else {
+ log.debug("XmlNodeGenerator.processSchemaType() found
attribute name from complexType: " + name + " , however could not resolve
namespace and localPart");
+ }
+ }
+ }
}else if (xmlSchemaType instanceof XmlSchemaSimpleType) {
// nothing to do with simpleType
}
@@ -163,6 +215,11 @@ public class XmlNodeGenerator {
}
private void generateQueue(XmlNode node) {
+ log.debug("XmlNodeGenerator.generateQueue() found node name: " +
node.getName() + " , isAttribute: " + node.isAttribute());
+ if (node.isAttribute()) {
+ attribute_queue.add(new JsonObject(node.getName(), JSONType.OBJECT
, node.getValueType() , node.getNamespaceUri()));
+ return;
+ }
if (node.isArray()) {
if (node.getChildrenList().size() > 0) {
queue.add(new JsonObject(node.getName(),
JSONType.NESTED_ARRAY, node.getValueType() , node.getNamespaceUri()));
@@ -186,7 +243,6 @@ public class XmlNodeGenerator {
}
}
-
public XmlNode getMainXmlNode() throws AxisFault {
if (mainXmlNode == null) {
try {
@@ -203,4 +259,9 @@ public class XmlNodeGenerator {
return queue;
}
+ // need to invoke getQueue() before getAttributeQueue()
+ public Queue<JsonObject> getAttributeQueue() {
+ return attribute_queue;
+ }
+
}
diff --git
a/modules/json/src/org/apache/axis2/json/moshi/MoshiXMLStreamReader.java
b/modules/json/src/org/apache/axis2/json/moshi/MoshiXMLStreamReader.java
index 67009026a4..ad5994ea3c 100644
--- a/modules/json/src/org/apache/axis2/json/moshi/MoshiXMLStreamReader.java
+++ b/modules/json/src/org/apache/axis2/json/moshi/MoshiXMLStreamReader.java
@@ -74,6 +74,10 @@ public class MoshiXMLStreamReader implements XMLStreamReader
{
private Queue<JsonObject> queue = new LinkedList<JsonObject>();
+ private Queue<JsonObject> attribute_queue = new LinkedList<JsonObject>();
+
+ private List<Attribute> attributes;
+
private XmlNodeGenerator xmlNodeGenerator;
private Stack<JsonObject> stackObj = new Stack<JsonObject>();
@@ -134,6 +138,17 @@ public class MoshiXMLStreamReader implements
XMLStreamReader {
newNodeMap.put(elementQname, mainXmlNode);
configContext.setProperty(JsonConstant.XMLNODES, newNodeMap);
}
+ log.debug("MoshiXMLStreamReader.process() completed on queue size: " +
queue.size());
+ // XML Elements
+ for (JsonObject jsonobject : queue) {
+ log.debug("moshixmlstreamreader.process() found Element to process
as jsonobject name: " + jsonobject.getName() + " , type: " +
jsonobject.getType());
+ }
+
+ // XML attributes
+ attribute_queue = xmlNodeGenerator.getAttributeQueue();
+ for (JsonObject jsonobject : attribute_queue) {
+ log.debug("moshixmlstreamreader.process() found Attribute to
process as jsonobject name: " + jsonobject.getName() + " , type: " +
jsonobject.getType());
+ }
isProcessed = true;
log.debug("MoshiXMLStreamReader.process() completed");
}
@@ -231,12 +246,9 @@ public class MoshiXMLStreamReader implements
XMLStreamReader {
}
- public String getAttributeValue(String namespaceURI, String localName) {
- throw new UnsupportedOperationException("Method is not implemented");
- }
-
-
public int getAttributeCount() {
+ // TODO populate the List of the class Attributes here by readName()
+ // and using the attribute_queue instead of queue if attribute_queue
not empty
if (isStartElement()) {
return 0; // don't support attributes on tags in JSON convention
} else {
@@ -245,38 +257,60 @@ public class MoshiXMLStreamReader implements
XMLStreamReader {
}
- public QName getAttributeName(int index) {
- throw new UnsupportedOperationException("Method is not implemented");
+ public String getAttributeLocalName(int index) {
+ if ((null == attributes) || (index >= attributes.size())) {
+ throw new IndexOutOfBoundsException();
+ }
+ return attributes.get(index).name.getLocalPart();
}
- public String getAttributeNamespace(int index) {
- throw new UnsupportedOperationException("Method is not implemented");
+ public QName getAttributeName(int index) {
+ return attributes.get(index).name;
}
- public String getAttributeLocalName(int index) {
- throw new UnsupportedOperationException("Method is not implemented");
+ public String getAttributePrefix(int index) {
+ if ((null == attributes) || (index >= attributes.size())) {
+ throw new IndexOutOfBoundsException();
+ }
+ return null;
}
- public String getAttributePrefix(int index) {
- throw new UnsupportedOperationException("Method is not implemented");
+ public String getAttributeType(int index) {
+ return null;
}
- public String getAttributeType(int index) {
- throw new UnsupportedOperationException("Method is not implemented");
+ public String getAttributeNamespace(int index) {
+ return null;
}
public String getAttributeValue(int index) {
- throw new UnsupportedOperationException("Method is not implemented");
+ if ((null == attributes) || (index >= attributes.size())) {
+ throw new IndexOutOfBoundsException();
+ }
+ return attributes.get(index).value;
+ }
+
+
+ public String getAttributeValue(String namespaceURI, String localName) {
+ if ((null == attributes) || (null == localName) ||
("".equals(localName))) {
+ throw new NoSuchElementException();
+ }
+ for (Attribute a : attributes) {
+ if (localName.equals(a.name.getLocalPart())) {
+ return a.value;
+ }
+ }
+ throw new NoSuchElementException();
}
public boolean isAttributeSpecified(int index) {
- throw new UnsupportedOperationException("Method is not implemented");
+ return (null != attributes) && (attributes.size() >= index);
}
@@ -542,7 +576,6 @@ public class MoshiXMLStreamReader implements
XMLStreamReader {
localName = "";
}
} else {
- System.out.println("stackObj is empty");
throw new XMLStreamException("Error while processing input JSON
stream, JSON request may not valid ," +
" it may has more end object characters ");
}
@@ -736,4 +769,14 @@ public class MoshiXMLStreamReader implements
XMLStreamReader {
EndObjectBeginObject_START,
EndObjectEndDocument,
}
+
+ private static class Attribute {
+ private final QName name;
+ private final String value;
+
+ Attribute(QName name, String value) {
+ this.name = name;
+ this.value = value;
+ }
+ }
}
