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Posted to java-dev@axis.apache.org by "Guillaume Sauthier (JIRA)" <ax...@ws.apache.org> on 2004/12/06 13:40:20 UTC
[jira] Created: (AXIS-1697) RPCParam.getValue() returns null
RPCParam.getValue() returns null
--------------------------------
Key: AXIS-1697
URL: http://nagoya.apache.org/jira/browse/AXIS-1697
Project: Axis
Type: Bug
Components: Basic Architecture
Versions: 1.2RC2
Environment: JOnAS 4.2.0+
Reporter: Guillaume Sauthier
I've got a JAXRPC client handler, that modify the SOAP Message in the request step. In order to do this, it navigate from the SOAPMessage of the MessageContext to the SOAPBody; iterates on the body childs SOAPElement (representing operation name), and for each operation, it iterates too on the operation childs elements (parameters).
Finally, it invoke SOAPElement.getValue() on the parameter for retrieving the inner value of the param (wich is a String in my case). And this call return always null !
Schematically :
SOAPMessage
->SOAPPart
->SOApEnvelope
->SOAPBody
->* SOAPElement (operation)
->* SOAPElement (parameter)
-> getValue() (=null)
After a little debugging, i found that the final SOAPElement I get is for real a RPCParam instance. Going a little deeper, I discover that RPCParam "delegate" to MessageElement (its super class) the getValue() call that return null. Here is a code snippet (comments inside) :
//======================================================
/**
* Get the value of the doc as a string.
* This uses {@link #getAsDOM()} so is a heavyweight operation.
* @return the value of any child node, or null if there is no node/something went
* wrong during serialization. If the first child is text, the return value
* is the text itself.
* @see javax.xml.soap.Node#getValue() ;
*/
public String getValue() {
// no recorder for me
// ======================
if ((recorder != null) && (!_isDirty)) {
StringWriter writer = new StringWriter();
TextSerializationContext outputContext =
new TextSerializationContext(writer);
try {
recorder.replay(startEventIndex,
endEventIndex,
new SAXOutputter(outputContext));
} catch (Exception t) {
log.debug("getValue()", t);
return null;
}
String value = writer.toString();
return (value.length() == 0) ? null : value;
}
// textRep is null for me
// ======================
if (textRep != null) {
// weird case: error?
return textRep.getNodeValue();
}
// objectValue too
// ======================
if (objectValue != null) {
return getValueDOM();
}
// children too
// ======================
if (children != null && !children.isEmpty()) {
if (children.get(0) instanceof org.apache.axis.message.Text) {
return ((org.apache.axis.message.Text)children.get(0)).getNodeValue();
}
}
// then, it always return null
// ======================
return null;
}
//======================================================
But there is other thing I view when debugging : RPCParam has a field named "value" with value accessible via getObjectValue(). And this is this value that I want to be returned.
Maybe we can add a RPCParam.getValue() that return this.getObjectValue() ??
--
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[jira] Commented: (AXIS-1697) RPCParam.getValue() returns null
Posted by "Davanum Srinivas (JIRA)" <ax...@ws.apache.org>.
[ http://nagoya.apache.org/jira/browse/AXIS-1697?page=comments#action_56257 ]
Davanum Srinivas commented on AXIS-1697:
----------------------------------------
does this pass all-tests?Can you please check the cvs history for MessageElement and see what it was before? we can use that code in RPCParam.getValue.
thanks,
dims
> RPCParam.getValue() returns null
> --------------------------------
>
> Key: AXIS-1697
> URL: http://nagoya.apache.org/jira/browse/AXIS-1697
> Project: Axis
> Type: Bug
> Components: Basic Architecture
> Versions: 1.2RC2
> Environment: JOnAS 4.2.0+
> Reporter: Guillaume Sauthier
> Attachments: axis-rpcparam-patch.txt
>
> I've got a JAXRPC client handler, that modify the SOAP Message in the request step. In order to do this, it navigate from the SOAPMessage of the MessageContext to the SOAPBody; iterates on the body childs SOAPElement (representing operation name), and for each operation, it iterates too on the operation childs elements (parameters).
> Finally, it invoke SOAPElement.getValue() on the parameter for retrieving the inner value of the param (wich is a String in my case). And this call return always null !
> Schematically :
> SOAPMessage
> ->SOAPPart
> ->SOApEnvelope
> ->SOAPBody
> ->* SOAPElement (operation)
> ->* SOAPElement (parameter)
> -> getValue() (=null)
> After a little debugging, i found that the final SOAPElement I get is for real a RPCParam instance. Going a little deeper, I discover that RPCParam "delegate" to MessageElement (its super class) the getValue() call that return null. Here is a code snippet (comments inside) :
> //======================================================
> /**
> * Get the value of the doc as a string.
> * This uses {@link #getAsDOM()} so is a heavyweight operation.
> * @return the value of any child node, or null if there is no node/something went
> * wrong during serialization. If the first child is text, the return value
> * is the text itself.
> * @see javax.xml.soap.Node#getValue() ;
> */
> public String getValue() {
> // no recorder for me
> // ======================
> if ((recorder != null) && (!_isDirty)) {
> StringWriter writer = new StringWriter();
> TextSerializationContext outputContext =
> new TextSerializationContext(writer);
> try {
> recorder.replay(startEventIndex,
> endEventIndex,
> new SAXOutputter(outputContext));
> } catch (Exception t) {
> log.debug("getValue()", t);
> return null;
> }
> String value = writer.toString();
> return (value.length() == 0) ? null : value;
> }
> // textRep is null for me
> // ======================
> if (textRep != null) {
> // weird case: error?
> return textRep.getNodeValue();
> }
> // objectValue too
> // ======================
> if (objectValue != null) {
> return getValueDOM();
> }
> // children too
> // ======================
> if (children != null && !children.isEmpty()) {
> if (children.get(0) instanceof org.apache.axis.message.Text) {
> return ((org.apache.axis.message.Text)children.get(0)).getNodeValue();
> }
> }
> // then, it always return null
> // ======================
> return null;
> }
> //======================================================
> But there is other thing I view when debugging : RPCParam has a field named "value" with value accessible via getObjectValue(). And this is this value that I want to be returned.
> Maybe we can add a RPCParam.getValue() that return this.getObjectValue() ??
--
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[jira] Commented: (AXIS-1697) RPCParam.getValue() returns null
Posted by "Guillaume Sauthier (JIRA)" <ax...@ws.apache.org>.
[ http://nagoya.apache.org/jira/browse/AXIS-1697?page=comments#action_56259 ]
Guillaume Sauthier commented on AXIS-1697:
------------------------------------------
the big change I saw is the inheritance modification:
RPCParam has been modified to inherit from MessageElement.
Before, getValue() was returning the RPCParam.value field, but the signature is different from Node.getValue() :
old -> public Object RPCParam.getValue() {}
new -> public String RPCParam.getValue() {}
Hum ... I think we should give more attention to the children no filled ?
> RPCParam.getValue() returns null
> --------------------------------
>
> Key: AXIS-1697
> URL: http://nagoya.apache.org/jira/browse/AXIS-1697
> Project: Axis
> Type: Bug
> Components: Basic Architecture
> Versions: 1.2RC2
> Environment: JOnAS 4.2.0+
> Reporter: Guillaume Sauthier
> Attachments: axis-rpcparam-patch.txt
>
> I've got a JAXRPC client handler, that modify the SOAP Message in the request step. In order to do this, it navigate from the SOAPMessage of the MessageContext to the SOAPBody; iterates on the body childs SOAPElement (representing operation name), and for each operation, it iterates too on the operation childs elements (parameters).
> Finally, it invoke SOAPElement.getValue() on the parameter for retrieving the inner value of the param (wich is a String in my case). And this call return always null !
> Schematically :
> SOAPMessage
> ->SOAPPart
> ->SOApEnvelope
> ->SOAPBody
> ->* SOAPElement (operation)
> ->* SOAPElement (parameter)
> -> getValue() (=null)
> After a little debugging, i found that the final SOAPElement I get is for real a RPCParam instance. Going a little deeper, I discover that RPCParam "delegate" to MessageElement (its super class) the getValue() call that return null. Here is a code snippet (comments inside) :
> //======================================================
> /**
> * Get the value of the doc as a string.
> * This uses {@link #getAsDOM()} so is a heavyweight operation.
> * @return the value of any child node, or null if there is no node/something went
> * wrong during serialization. If the first child is text, the return value
> * is the text itself.
> * @see javax.xml.soap.Node#getValue() ;
> */
> public String getValue() {
> // no recorder for me
> // ======================
> if ((recorder != null) && (!_isDirty)) {
> StringWriter writer = new StringWriter();
> TextSerializationContext outputContext =
> new TextSerializationContext(writer);
> try {
> recorder.replay(startEventIndex,
> endEventIndex,
> new SAXOutputter(outputContext));
> } catch (Exception t) {
> log.debug("getValue()", t);
> return null;
> }
> String value = writer.toString();
> return (value.length() == 0) ? null : value;
> }
> // textRep is null for me
> // ======================
> if (textRep != null) {
> // weird case: error?
> return textRep.getNodeValue();
> }
> // objectValue too
> // ======================
> if (objectValue != null) {
> return getValueDOM();
> }
> // children too
> // ======================
> if (children != null && !children.isEmpty()) {
> if (children.get(0) instanceof org.apache.axis.message.Text) {
> return ((org.apache.axis.message.Text)children.get(0)).getNodeValue();
> }
> }
> // then, it always return null
> // ======================
> return null;
> }
> //======================================================
> But there is other thing I view when debugging : RPCParam has a field named "value" with value accessible via getObjectValue(). And this is this value that I want to be returned.
> Maybe we can add a RPCParam.getValue() that return this.getObjectValue() ??
--
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[jira] Commented: (AXIS-1697) RPCParam.getValue() returns null
Posted by "Guillaume Sauthier (JIRA)" <ax...@ws.apache.org>.
[ http://nagoya.apache.org/jira/browse/AXIS-1697?page=comments#action_56317 ]
Guillaume Sauthier commented on AXIS-1697:
------------------------------------------
Yes, that resolves the RPCParam.getValue() returning null.
But that doesn't solve the second comment I wrote here concerning NodeImpl.children not initialized and returning an empty Iterator instead of returning an Iterator that give access to the underlying Text node.
=> The SOAP tree structure is not completely instanciated with RPCParam.
Should we open another bug for this ?
> RPCParam.getValue() returns null
> --------------------------------
>
> Key: AXIS-1697
> URL: http://nagoya.apache.org/jira/browse/AXIS-1697
> Project: Axis
> Type: Bug
> Components: Basic Architecture
> Versions: 1.2RC2
> Environment: JOnAS 4.2.0+
> Reporter: Guillaume Sauthier
> Attachments: axis-rpcparam-patch.txt
>
> I've got a JAXRPC client handler, that modify the SOAP Message in the request step. In order to do this, it navigate from the SOAPMessage of the MessageContext to the SOAPBody; iterates on the body childs SOAPElement (representing operation name), and for each operation, it iterates too on the operation childs elements (parameters).
> Finally, it invoke SOAPElement.getValue() on the parameter for retrieving the inner value of the param (wich is a String in my case). And this call return always null !
> Schematically :
> SOAPMessage
> ->SOAPPart
> ->SOApEnvelope
> ->SOAPBody
> ->* SOAPElement (operation)
> ->* SOAPElement (parameter)
> -> getValue() (=null)
> After a little debugging, i found that the final SOAPElement I get is for real a RPCParam instance. Going a little deeper, I discover that RPCParam "delegate" to MessageElement (its super class) the getValue() call that return null. Here is a code snippet (comments inside) :
> //======================================================
> /**
> * Get the value of the doc as a string.
> * This uses {@link #getAsDOM()} so is a heavyweight operation.
> * @return the value of any child node, or null if there is no node/something went
> * wrong during serialization. If the first child is text, the return value
> * is the text itself.
> * @see javax.xml.soap.Node#getValue() ;
> */
> public String getValue() {
> // no recorder for me
> // ======================
> if ((recorder != null) && (!_isDirty)) {
> StringWriter writer = new StringWriter();
> TextSerializationContext outputContext =
> new TextSerializationContext(writer);
> try {
> recorder.replay(startEventIndex,
> endEventIndex,
> new SAXOutputter(outputContext));
> } catch (Exception t) {
> log.debug("getValue()", t);
> return null;
> }
> String value = writer.toString();
> return (value.length() == 0) ? null : value;
> }
> // textRep is null for me
> // ======================
> if (textRep != null) {
> // weird case: error?
> return textRep.getNodeValue();
> }
> // objectValue too
> // ======================
> if (objectValue != null) {
> return getValueDOM();
> }
> // children too
> // ======================
> if (children != null && !children.isEmpty()) {
> if (children.get(0) instanceof org.apache.axis.message.Text) {
> return ((org.apache.axis.message.Text)children.get(0)).getNodeValue();
> }
> }
> // then, it always return null
> // ======================
> return null;
> }
> //======================================================
> But there is other thing I view when debugging : RPCParam has a field named "value" with value accessible via getObjectValue(). And this is this value that I want to be returned.
> Maybe we can add a RPCParam.getValue() that return this.getObjectValue() ??
--
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[jira] Commented: (AXIS-1697) RPCParam.getValue() returns null
Posted by "Guillaume Sauthier (JIRA)" <ax...@ws.apache.org>.
[ http://nagoya.apache.org/jira/browse/AXIS-1697?page=comments#action_56256 ]
Guillaume Sauthier commented on AXIS-1697:
------------------------------------------
After further testing, I must admit that this works in really simple case only :)
Another example that fails (always from a JAXRPC client side Handler) :
SOAPMessage
->SOAPPart
->SOApEnvelope
->SOAPBody
->* SOAPElement (operation)
->* SOAPElement (parameter)
-> getChildElements() return an Iterator
The iterator returned is expected to be non-empty (because the SOAPElement contains a String), but as NodeImpl.childrens is never initialized, an empty Iterator is returned.
the SOAPElement of the parameter looks like this :
<String_1 xsi:type="xsd:string" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">MyText</String_1>
That sounds reasonnable to expect a Text as first child.
In the client side, RPCParam is used only onced : when instanciated. Should the constructor build more (add chlidrens, ...) ?
> RPCParam.getValue() returns null
> --------------------------------
>
> Key: AXIS-1697
> URL: http://nagoya.apache.org/jira/browse/AXIS-1697
> Project: Axis
> Type: Bug
> Components: Basic Architecture
> Versions: 1.2RC2
> Environment: JOnAS 4.2.0+
> Reporter: Guillaume Sauthier
> Attachments: axis-rpcparam-patch.txt
>
> I've got a JAXRPC client handler, that modify the SOAP Message in the request step. In order to do this, it navigate from the SOAPMessage of the MessageContext to the SOAPBody; iterates on the body childs SOAPElement (representing operation name), and for each operation, it iterates too on the operation childs elements (parameters).
> Finally, it invoke SOAPElement.getValue() on the parameter for retrieving the inner value of the param (wich is a String in my case). And this call return always null !
> Schematically :
> SOAPMessage
> ->SOAPPart
> ->SOApEnvelope
> ->SOAPBody
> ->* SOAPElement (operation)
> ->* SOAPElement (parameter)
> -> getValue() (=null)
> After a little debugging, i found that the final SOAPElement I get is for real a RPCParam instance. Going a little deeper, I discover that RPCParam "delegate" to MessageElement (its super class) the getValue() call that return null. Here is a code snippet (comments inside) :
> //======================================================
> /**
> * Get the value of the doc as a string.
> * This uses {@link #getAsDOM()} so is a heavyweight operation.
> * @return the value of any child node, or null if there is no node/something went
> * wrong during serialization. If the first child is text, the return value
> * is the text itself.
> * @see javax.xml.soap.Node#getValue() ;
> */
> public String getValue() {
> // no recorder for me
> // ======================
> if ((recorder != null) && (!_isDirty)) {
> StringWriter writer = new StringWriter();
> TextSerializationContext outputContext =
> new TextSerializationContext(writer);
> try {
> recorder.replay(startEventIndex,
> endEventIndex,
> new SAXOutputter(outputContext));
> } catch (Exception t) {
> log.debug("getValue()", t);
> return null;
> }
> String value = writer.toString();
> return (value.length() == 0) ? null : value;
> }
> // textRep is null for me
> // ======================
> if (textRep != null) {
> // weird case: error?
> return textRep.getNodeValue();
> }
> // objectValue too
> // ======================
> if (objectValue != null) {
> return getValueDOM();
> }
> // children too
> // ======================
> if (children != null && !children.isEmpty()) {
> if (children.get(0) instanceof org.apache.axis.message.Text) {
> return ((org.apache.axis.message.Text)children.get(0)).getNodeValue();
> }
> }
> // then, it always return null
> // ======================
> return null;
> }
> //======================================================
> But there is other thing I view when debugging : RPCParam has a field named "value" with value accessible via getObjectValue(). And this is this value that I want to be returned.
> Maybe we can add a RPCParam.getValue() that return this.getObjectValue() ??
--
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[jira] Resolved: (AXIS-1697) RPCParam.getValue() returns null
Posted by "Jarek Gawor (JIRA)" <ax...@ws.apache.org>.
[ http://nagoya.apache.org/jira/browse/AXIS-1697?page=history ]
Jarek Gawor resolved AXIS-1697:
-------------------------------
Resolution: Fixed
Updated the RPCParam.getValue() to work exactly as before. I belive we could still add this String check for peformance reasons.
> RPCParam.getValue() returns null
> --------------------------------
>
> Key: AXIS-1697
> URL: http://nagoya.apache.org/jira/browse/AXIS-1697
> Project: Axis
> Type: Bug
> Components: Basic Architecture
> Versions: 1.2RC2
> Environment: JOnAS 4.2.0+
> Reporter: Guillaume Sauthier
> Attachments: axis-rpcparam-patch.txt
>
> I've got a JAXRPC client handler, that modify the SOAP Message in the request step. In order to do this, it navigate from the SOAPMessage of the MessageContext to the SOAPBody; iterates on the body childs SOAPElement (representing operation name), and for each operation, it iterates too on the operation childs elements (parameters).
> Finally, it invoke SOAPElement.getValue() on the parameter for retrieving the inner value of the param (wich is a String in my case). And this call return always null !
> Schematically :
> SOAPMessage
> ->SOAPPart
> ->SOApEnvelope
> ->SOAPBody
> ->* SOAPElement (operation)
> ->* SOAPElement (parameter)
> -> getValue() (=null)
> After a little debugging, i found that the final SOAPElement I get is for real a RPCParam instance. Going a little deeper, I discover that RPCParam "delegate" to MessageElement (its super class) the getValue() call that return null. Here is a code snippet (comments inside) :
> //======================================================
> /**
> * Get the value of the doc as a string.
> * This uses {@link #getAsDOM()} so is a heavyweight operation.
> * @return the value of any child node, or null if there is no node/something went
> * wrong during serialization. If the first child is text, the return value
> * is the text itself.
> * @see javax.xml.soap.Node#getValue() ;
> */
> public String getValue() {
> // no recorder for me
> // ======================
> if ((recorder != null) && (!_isDirty)) {
> StringWriter writer = new StringWriter();
> TextSerializationContext outputContext =
> new TextSerializationContext(writer);
> try {
> recorder.replay(startEventIndex,
> endEventIndex,
> new SAXOutputter(outputContext));
> } catch (Exception t) {
> log.debug("getValue()", t);
> return null;
> }
> String value = writer.toString();
> return (value.length() == 0) ? null : value;
> }
> // textRep is null for me
> // ======================
> if (textRep != null) {
> // weird case: error?
> return textRep.getNodeValue();
> }
> // objectValue too
> // ======================
> if (objectValue != null) {
> return getValueDOM();
> }
> // children too
> // ======================
> if (children != null && !children.isEmpty()) {
> if (children.get(0) instanceof org.apache.axis.message.Text) {
> return ((org.apache.axis.message.Text)children.get(0)).getNodeValue();
> }
> }
> // then, it always return null
> // ======================
> return null;
> }
> //======================================================
> But there is other thing I view when debugging : RPCParam has a field named "value" with value accessible via getObjectValue(). And this is this value that I want to be returned.
> Maybe we can add a RPCParam.getValue() that return this.getObjectValue() ??
--
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[jira] Updated: (AXIS-1697) RPCParam.getValue() returns null
Posted by "Guillaume Sauthier (JIRA)" <ax...@ws.apache.org>.
[ http://nagoya.apache.org/jira/browse/AXIS-1697?page=history ]
Guillaume Sauthier updated AXIS-1697:
-------------------------------------
Attachment: axis-rpcparam-patch.txt
Very very simple workaround :
If enclosed type is a String, return it, otherwise, return null.
This change works for me, but probably that's not the perfect solution for this issue.
Maybe MessageElement.objectValue shouldn't be null, and the right value returned ?
I cannot respond to this, as I don't know well this part of Axis.
> RPCParam.getValue() returns null
> --------------------------------
>
> Key: AXIS-1697
> URL: http://nagoya.apache.org/jira/browse/AXIS-1697
> Project: Axis
> Type: Bug
> Components: Basic Architecture
> Versions: 1.2RC2
> Environment: JOnAS 4.2.0+
> Reporter: Guillaume Sauthier
> Attachments: axis-rpcparam-patch.txt
>
> I've got a JAXRPC client handler, that modify the SOAP Message in the request step. In order to do this, it navigate from the SOAPMessage of the MessageContext to the SOAPBody; iterates on the body childs SOAPElement (representing operation name), and for each operation, it iterates too on the operation childs elements (parameters).
> Finally, it invoke SOAPElement.getValue() on the parameter for retrieving the inner value of the param (wich is a String in my case). And this call return always null !
> Schematically :
> SOAPMessage
> ->SOAPPart
> ->SOApEnvelope
> ->SOAPBody
> ->* SOAPElement (operation)
> ->* SOAPElement (parameter)
> -> getValue() (=null)
> After a little debugging, i found that the final SOAPElement I get is for real a RPCParam instance. Going a little deeper, I discover that RPCParam "delegate" to MessageElement (its super class) the getValue() call that return null. Here is a code snippet (comments inside) :
> //======================================================
> /**
> * Get the value of the doc as a string.
> * This uses {@link #getAsDOM()} so is a heavyweight operation.
> * @return the value of any child node, or null if there is no node/something went
> * wrong during serialization. If the first child is text, the return value
> * is the text itself.
> * @see javax.xml.soap.Node#getValue() ;
> */
> public String getValue() {
> // no recorder for me
> // ======================
> if ((recorder != null) && (!_isDirty)) {
> StringWriter writer = new StringWriter();
> TextSerializationContext outputContext =
> new TextSerializationContext(writer);
> try {
> recorder.replay(startEventIndex,
> endEventIndex,
> new SAXOutputter(outputContext));
> } catch (Exception t) {
> log.debug("getValue()", t);
> return null;
> }
> String value = writer.toString();
> return (value.length() == 0) ? null : value;
> }
> // textRep is null for me
> // ======================
> if (textRep != null) {
> // weird case: error?
> return textRep.getNodeValue();
> }
> // objectValue too
> // ======================
> if (objectValue != null) {
> return getValueDOM();
> }
> // children too
> // ======================
> if (children != null && !children.isEmpty()) {
> if (children.get(0) instanceof org.apache.axis.message.Text) {
> return ((org.apache.axis.message.Text)children.get(0)).getNodeValue();
> }
> }
> // then, it always return null
> // ======================
> return null;
> }
> //======================================================
> But there is other thing I view when debugging : RPCParam has a field named "value" with value accessible via getObjectValue(). And this is this value that I want to be returned.
> Maybe we can add a RPCParam.getValue() that return this.getObjectValue() ??
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