Example usage for org.w3c.dom Element getOwnerDocument

List of usage examples for org.w3c.dom Element getOwnerDocument

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Introduction

In this page you can find the example usage for org.w3c.dom Element getOwnerDocument.

Prototype

public Document getOwnerDocument();

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Document

The Document object associated with this node.

Usage

From source file:org.apache.ode.bpel.rtrep.v2.AssignHelper.java

/**
 * Get the r-value. There are several possibilities:
 * <ul>//from w w  w .java2s. c  om
 * <li>a message is selected - an element representing the whole message is
 * returned.</li>
 * <li>a (element) message part is selected - the element is returned.
 * </li>
 * <li>a (typed) message part is select - a wrapper element is returned.
 * </li>
 * <li>an attribute is selected - an attribute node is returned. </li>
 * <li>a text node/string expression is selected - a text node is returned.
 * </li>
 * </ul>
 * (madars.vitolins _at gmail.com - 2009.04.17 - moved from ASSIGN here)
 * @param from
 *
 * @return Either {@link Element}, {@link org.w3c.dom.Text}, or
 *         {@link org.w3c.dom.Attr} node representing the r-value.
 *
 * @throws FaultException
 *             DOCUMENTME
 * @throws UnsupportedOperationException
 *             DOCUMENTME
 * @throws IllegalStateException
 *             DOCUMENTME
 */
public Node evalRValue(OAssign.RValue from) throws FaultException, ExternalVariableModuleException {
    if (__log.isDebugEnabled())
        __log.debug("Evaluating FROM expression \"" + from + "\".");

    Node retVal;
    if (from instanceof OAssign.DirectRef) {
        OAssign.DirectRef dref = (OAssign.DirectRef) from;
        sendVariableReadEvent(_scopeFrame.resolve(dref.variable));
        Node data = fetchVariableData(_scopeFrame.resolve(dref.variable), false);
        retVal = DOMUtils.findChildByName((Element) data, dref.elName);
    } else if (from instanceof OAssign.VariableRef) {
        OAssign.VariableRef varRef = (OAssign.VariableRef) from;
        sendVariableReadEvent(_scopeFrame.resolve(varRef.variable));
        Node data = fetchVariableData(_scopeFrame.resolve(varRef.variable), false);
        retVal = evalQuery(data, varRef.part != null ? varRef.part : varRef.headerPart, varRef.location,
                getEvaluationContext());
    } else if (from instanceof OAssign.PropertyRef) {
        OAssign.PropertyRef propRef = (OAssign.PropertyRef) from;
        sendVariableReadEvent(_scopeFrame.resolve(propRef.variable));
        Node data = fetchVariableData(_scopeFrame.resolve(propRef.variable), false);
        retVal = evalQuery(data, propRef.propertyAlias.part, propRef.propertyAlias.location,
                getEvaluationContext());
    } else if (from instanceof OAssign.PartnerLinkRef) {
        OAssign.PartnerLinkRef pLinkRef = (OAssign.PartnerLinkRef) from;
        PartnerLinkInstance pLink = _scopeFrame.resolve(pLinkRef.partnerLink);
        Node tempVal = pLinkRef.isMyEndpointReference ? getBpelRuntime().fetchMyRoleEndpointReferenceData(pLink)
                : getBpelRuntime().fetchPartnerRoleEndpointReferenceData(pLink);
        if (__log.isDebugEnabled())
            __log.debug("RValue is a partner link, corresponding endpoint " + tempVal.getClass().getName()
                    + " has value " + DOMUtils.domToString(tempVal));
        retVal = tempVal;
    } else if (from instanceof OAssign.ContextRef) {
        OAssign.ContextRef ctxRef = (OAssign.ContextRef) from;
        ContextData cdata = getBpelRuntime().fetchContextData(_scopeFrame.resolve(ctxRef.partnerLink));
        retVal = evalQuery(cdata.toXML(ctxRef.contexts), null, ctxRef.location, getEvaluationContext());
    } else if (from instanceof OAssign.Expression) {
        OExpression expr = ((OAssign.Expression) from).expression;
        List<Node> l = getBpelRuntime().getExpLangRuntime().evaluate(expr, getEvaluationContext());

        if (l.size() == 0) {
            String msg = __msgs.msgRValueNoNodesSelected(expr.toString());
            if (__log.isDebugEnabled())
                __log.debug(from + ": " + msg);
            throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg,
                    new Throwable("ignoreMissingFromData"));
        } else if (l.size() > 1) {
            String msg = __msgs.msgRValueMultipleNodesSelected(expr.toString());
            if (__log.isDebugEnabled())
                __log.debug(from + ": " + msg);
            throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);
        }
        retVal = l.get(0);
    } else if (from instanceof OAssign.Literal) {
        Element literalRoot = ((OAssign.Literal) from).getXmlLiteral().getDocumentElement();
        assert literalRoot.getLocalName().equals("literal");
        // We'd like a single text node...

        literalRoot.normalize();
        retVal = literalRoot.getFirstChild();

        // Adjust for whitespace before an element.
        if (retVal != null && retVal.getNodeType() == Node.TEXT_NODE
                && retVal.getTextContent().trim().length() == 0 && retVal.getNextSibling() != null) {
            retVal = retVal.getNextSibling();
        }

        if (retVal == null) {
            // Special case, no children --> empty TII
            retVal = literalRoot.getOwnerDocument().createTextNode("");
        } else if (retVal.getNodeType() == Node.ELEMENT_NODE) {
            // Make sure there is no more elements.
            Node x = retVal.getNextSibling();
            while (x != null) {
                if (x.getNodeType() == Node.ELEMENT_NODE) {
                    String msg = __msgs.msgLiteralContainsMultipleEIIs();
                    if (__log.isDebugEnabled())
                        __log.debug(from + ": " + msg);
                    throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);

                }
                x = x.getNextSibling();
            }
        } else if (retVal.getNodeType() == Node.TEXT_NODE) {
            // Make sure there are no elements following this text node.
            Node x = retVal.getNextSibling();
            while (x != null) {
                if (x.getNodeType() == Node.ELEMENT_NODE) {
                    String msg = __msgs.msgLiteralContainsMixedContent();
                    if (__log.isDebugEnabled())
                        __log.debug(from + ": " + msg);
                    throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);

                }
                x = x.getNextSibling();
            }

        }

        if (retVal == null) {
            String msg = __msgs.msgLiteralMustContainTIIorEII();
            if (__log.isDebugEnabled())
                __log.debug(from + ": " + msg);
            throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);
        }
    } else {
        String msg = __msgs.msgInternalError("Unknown RVALUE type: " + from);
        if (__log.isErrorEnabled())
            __log.error(from + ": " + msg);
        throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);
    }

    // Now verify we got something.
    if (retVal == null) {
        String msg = __msgs.msgEmptyRValue();
        if (__log.isDebugEnabled())
            __log.debug(from + ": " + msg);
        throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);
    }

    // Now check that we got the right thing.
    switch (retVal.getNodeType()) {
    case Node.TEXT_NODE:
    case Node.ATTRIBUTE_NODE:
    case Node.ELEMENT_NODE:
    case Node.CDATA_SECTION_NODE:
        break;
    default:
        String msg = __msgs.msgInvalidRValue();
        if (__log.isDebugEnabled())
            __log.debug(from + ": " + msg);

        throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);

    }

    return retVal;
}

From source file:org.apache.ode.bpel.rtrep.v2.AssignHelper.java

/**
 * madars.vitolins _at gmail.com - 2009.04.17 - moved from ASSIGN here
 *//*w  w  w. j a  v  a2 s  .  co m*/
public Element replaceElement(Element lval, Element ptr, Element src, boolean keepSrcElement) {
    Document doc = ptr.getOwnerDocument();
    Node parent = ptr.getParentNode();
    if (keepSrcElement) {
        Element replacement = (Element) doc.importNode(src, true);
        parent.replaceChild(replacement, ptr);
        return (lval == ptr) ? replacement : lval;
    }

    Element replacement = doc.createElementNS(ptr.getNamespaceURI(), ptr.getLocalName());
    NodeList nl = src.getChildNodes();
    for (int i = 0; i < nl.getLength(); ++i)
        replacement.appendChild(doc.importNode(nl.item(i), true));
    NamedNodeMap attrs = src.getAttributes();
    for (int i = 0; i < attrs.getLength(); ++i) {
        Attr attr = (Attr) attrs.item(i);
        if (!attr.getName().startsWith("xmlns")) {
            replacement.setAttributeNodeNS((Attr) doc.importNode(attrs.item(i), true));
            // Case of qualified attribute values, we're forced to add corresponding namespace declaration manually
            int colonIdx = attr.getValue().indexOf(":");
            if (colonIdx > 0) {
                String prefix = attr.getValue().substring(0, colonIdx);
                String attrValNs = src.lookupPrefix(prefix);
                if (attrValNs != null)
                    replacement.setAttributeNS(DOMUtils.NS_URI_XMLNS, "xmlns:" + prefix, attrValNs);
            }
        }
    }
    parent.replaceChild(replacement, ptr);
    DOMUtils.copyNSContext(ptr, replacement);

    return (lval == ptr) ? replacement : lval;
}

From source file:org.apache.ode.bpel.runtime.ASSIGN.java

/**
 * Get the r-value. There are several possibilities:
 * <ul>//from   w ww  .j a va  2 s  . co  m
 * <li>a message is selected - an element representing the whole message is
 * returned.</li>
 * <li>a (element) message part is selected - the element is returned.
 * </li>
 * <li>a (typed) message part is select - a wrapper element is returned.
 * </li>
 * <li>an attribute is selected - an attribute node is returned. </li>
 * <li>a text node/string expression is selected - a text node is returned.
 * </li>
 * </ul>
 *
 * @param from
 *
 * @return Either {@link Element}, {@link org.w3c.dom.Text}, or
 *         {@link org.w3c.dom.Attr} node representing the r-value.
 *
 * @throws FaultException
 *             DOCUMENTME
 * @throws UnsupportedOperationException
 *             DOCUMENTME
 * @throws IllegalStateException
 *             DOCUMENTME
 */
private Node evalRValue(OAssign.RValue from) throws FaultException, ExternalVariableModuleException {
    if (__log.isDebugEnabled())
        __log.debug("Evaluating FROM expression \"" + from + "\".");

    Node retVal;
    if (from instanceof DirectRef) {
        OAssign.DirectRef dref = (OAssign.DirectRef) from;
        sendVariableReadEvent(_scopeFrame.resolve(dref.variable));
        Node data = fetchVariableData(_scopeFrame.resolve(dref.variable), false);
        retVal = DOMUtils.findChildByName((Element) data, dref.elName);
    } else if (from instanceof OAssign.VariableRef) {
        OAssign.VariableRef varRef = (OAssign.VariableRef) from;
        sendVariableReadEvent(_scopeFrame.resolve(varRef.variable));
        Node data = fetchVariableData(_scopeFrame.resolve(varRef.variable), false);
        retVal = evalQuery(data, varRef.part != null ? varRef.part : varRef.headerPart, varRef.location,
                getEvaluationContext());
    } else if (from instanceof OAssign.PropertyRef) {
        OAssign.PropertyRef propRef = (OAssign.PropertyRef) from;
        sendVariableReadEvent(_scopeFrame.resolve(propRef.variable));
        Node data = fetchVariableData(_scopeFrame.resolve(propRef.variable), false);
        retVal = evalQuery(data, propRef.propertyAlias.part, propRef.propertyAlias.location,
                getEvaluationContext());
    } else if (from instanceof OAssign.PartnerLinkRef) {
        OAssign.PartnerLinkRef pLinkRef = (OAssign.PartnerLinkRef) from;
        PartnerLinkInstance pLink = _scopeFrame.resolve(pLinkRef.partnerLink);
        Node tempVal = pLinkRef.isMyEndpointReference
                ? getBpelRuntimeContext().fetchMyRoleEndpointReferenceData(pLink)
                : getBpelRuntimeContext().fetchPartnerRoleEndpointReferenceData(pLink);
        if (__log.isDebugEnabled())
            __log.debug("RValue is a partner link, corresponding endpoint " + tempVal.getClass().getName()
                    + " has value " + DOMUtils.domToString(tempVal));
        retVal = tempVal;
    } else if (from instanceof OAssign.Expression) {
        List<Node> l;
        OExpression expr = ((OAssign.Expression) from).expression;
        try {
            l = getBpelRuntimeContext().getExpLangRuntime().evaluate(expr, getEvaluationContext());
            if (l.size() == 0 || l.get(0) == null || !(l.get(0) instanceof Element)) {
                if (__log.isTraceEnabled()) {
                    __log.trace("evalRValue: OAssign.Expression: eval reult not Element or node=null");
                }
            } else {
                Element element = (Element) l.get(0);
                for (Map.Entry<String, String> entry : DOMUtils.getMyNSContext(element).toMap().entrySet()) {
                    String key = entry.getKey();
                    String value = entry.getValue();
                    if (entry.getKey() == null || entry.getKey().length() == 0) {
                        element.setAttributeNS(DOMUtils.NS_URI_XMLNS, "xmlns", value);
                    } else {
                        element.setAttributeNS(DOMUtils.NS_URI_XMLNS, "xmlns:" + key, value);
                    }
                }
            }
        } catch (EvaluationException e) {
            String msg = __msgs.msgEvalException(from.toString(), e.getMessage());
            if (__log.isDebugEnabled())
                __log.debug(from + ": " + msg);
            if (e.getCause() instanceof FaultException)
                throw (FaultException) e.getCause();
            throw new FaultException(getOAsssign().getOwner().constants.qnSelectionFailure, msg);
        }
        if (l.size() == 0) {
            String msg = __msgs.msgRValueNoNodesSelected(expr.toString());
            if (__log.isDebugEnabled())
                __log.debug(from + ": " + msg);
            throw new FaultException(getOAsssign().getOwner().constants.qnSelectionFailure, msg,
                    new Throwable("ignoreMissingFromData"));
        } else if (l.size() > 1) {
            String msg = __msgs.msgRValueMultipleNodesSelected(expr.toString());
            if (__log.isDebugEnabled())
                __log.debug(from + ": " + msg);
            throw new FaultException(getOAsssign().getOwner().constants.qnSelectionFailure, msg);
        }
        retVal = (Node) l.get(0);
    } else if (from instanceof OAssign.Literal) {
        String literal = ((OAssign.Literal) from).getXmlLiteral();
        Element literalRoot;
        try {
            literalRoot = DOMUtils.stringToDOM(literal);
        } catch (Exception e) {
            throw new RuntimeException("XML literal parsing failed " + literal, e);
        }
        assert literalRoot.getLocalName().equals("literal");
        // We'd like a single text node...

        literalRoot.normalize();
        retVal = literalRoot.getFirstChild();

        // Adjust for whitespace before an element.
        if (retVal != null && retVal.getNodeType() == Node.TEXT_NODE
                && retVal.getTextContent().trim().length() == 0 && retVal.getNextSibling() != null) {
            retVal = retVal.getNextSibling();
        }

        if (retVal == null) {
            // Special case, no children --> empty TII
            retVal = literalRoot.getOwnerDocument().createTextNode("");
        } else if (retVal.getNodeType() == Node.ELEMENT_NODE) {
            // Make sure there is no more elements.
            Node x = retVal.getNextSibling();
            while (x != null) {
                if (x.getNodeType() == Node.ELEMENT_NODE) {
                    String msg = __msgs.msgLiteralContainsMultipleEIIs();
                    if (__log.isDebugEnabled())
                        __log.debug(from + ": " + msg);
                    throw new FaultException(getOAsssign().getOwner().constants.qnSelectionFailure, msg);

                }
                x = x.getNextSibling();
            }
        } else if (retVal.getNodeType() == Node.TEXT_NODE) {
            // Make sure there are no elements following this text node.
            Node x = retVal.getNextSibling();
            while (x != null) {
                if (x.getNodeType() == Node.ELEMENT_NODE) {
                    String msg = __msgs.msgLiteralContainsMixedContent();
                    if (__log.isDebugEnabled())
                        __log.debug(from + ": " + msg);
                    throw new FaultException(getOAsssign().getOwner().constants.qnSelectionFailure, msg);

                }
                x = x.getNextSibling();
            }

        }

        if (retVal == null) {
            String msg = __msgs.msgLiteralMustContainTIIorEII();
            if (__log.isDebugEnabled())
                __log.debug(from + ": " + msg);
            throw new FaultException(getOAsssign().getOwner().constants.qnSelectionFailure, msg);
        }
    } else {
        String msg = __msgs.msgInternalError("Unknown RVALUE type: " + from);
        if (__log.isErrorEnabled())
            __log.error(from + ": " + msg);
        throw new FaultException(getOAsssign().getOwner().constants.qnSelectionFailure, msg);
    }

    // Now verify we got something.
    if (retVal == null) {
        String msg = __msgs.msgEmptyRValue();
        if (__log.isDebugEnabled())
            __log.debug(from + ": " + msg);
        throw new FaultException(getOAsssign().getOwner().constants.qnSelectionFailure, msg);
    }

    // Now check that we got the right thing.
    switch (retVal.getNodeType()) {
    case Node.TEXT_NODE:
    case Node.ATTRIBUTE_NODE:
    case Node.ELEMENT_NODE:
    case Node.CDATA_SECTION_NODE:
        break;
    default:
        String msg = __msgs.msgInvalidRValue();
        if (__log.isDebugEnabled())
            __log.debug(from + ": " + msg);

        throw new FaultException(getOAsssign().getOwner().constants.qnSelectionFailure, msg);

    }

    return retVal;
}

From source file:org.apache.ode.bpel.runtime.ASSIGN.java

private void copy(OAssign.Copy ocopy) throws FaultException, ExternalVariableModuleException {

    if (__log.isDebugEnabled())
        __log.debug("Assign.copy(" + ocopy + ")");

    ScopeEvent se;/*w  w w. j av  a 2 s .c  o m*/

    // Check for message to message - copy, we can do this efficiently in
    // the database.
    if ((ocopy.to instanceof VariableRef && ((VariableRef) ocopy.to).isMessageRef())
            || (ocopy.from instanceof VariableRef && ((VariableRef) ocopy.from).isMessageRef())) {

        if ((ocopy.to instanceof VariableRef && ((VariableRef) ocopy.to).isMessageRef())
                && ocopy.from instanceof VariableRef && ((VariableRef) ocopy.from).isMessageRef()) {

            final VariableInstance lval = _scopeFrame.resolve(ocopy.to.getVariable());
            final VariableInstance rval = _scopeFrame.resolve(((VariableRef) ocopy.from).getVariable());
            Element lvalue = (Element) fetchVariableData(rval, false);
            initializeVariable(lval, lvalue);
            se = new VariableModificationEvent(lval.declaration.name);
            ((VariableModificationEvent) se).setNewValue(lvalue);
        } else {
            // This really should have been caught by the compiler.
            __log.fatal("Message/Non-Message Assignment, should be caught by compiler:" + ocopy);
            throw new FaultException(ocopy.getOwner().constants.qnSelectionFailure,
                    "Message/Non-Message Assignment:  " + ocopy);
        }
    } else {
        // Conventional Assignment logic.
        Node rvalue = evalRValue(ocopy.from);
        Node lvalue = evalLValue(ocopy.to);
        if (__log.isDebugEnabled()) {
            __log.debug("lvalue after eval " + lvalue);
            if (lvalue != null)
                __log.debug("content " + DOMUtils.domToString(lvalue));
        }

        // Get a pointer within the lvalue.
        Node lvaluePtr = lvalue;
        boolean headerAssign = false;
        if (ocopy.to instanceof OAssign.DirectRef) {
            DirectRef dref = ((DirectRef) ocopy.to);
            Element el = DOMUtils.findChildByName((Element) lvalue, dref.elName);
            if (el == null) {
                el = (Element) ((Element) lvalue).appendChild(lvalue.getOwnerDocument()
                        .createElementNS(dref.elName.getNamespaceURI(), dref.elName.getLocalPart()));
            }
            lvaluePtr = el;
        } else if (ocopy.to instanceof OAssign.VariableRef) {
            VariableRef varRef = ((VariableRef) ocopy.to);
            if (varRef.headerPart != null)
                headerAssign = true;
            lvaluePtr = evalQuery(lvalue, varRef.part != null ? varRef.part : varRef.headerPart,
                    varRef.location, new EvaluationContextProxy(varRef.getVariable(), lvalue));
        } else if (ocopy.to instanceof OAssign.PropertyRef) {
            PropertyRef propRef = ((PropertyRef) ocopy.to);
            lvaluePtr = evalQuery(lvalue, propRef.propertyAlias.part, propRef.propertyAlias.location,
                    new EvaluationContextProxy(propRef.getVariable(), lvalue));
        } else if (ocopy.to instanceof OAssign.LValueExpression) {
            LValueExpression lexpr = (LValueExpression) ocopy.to;
            lexpr.setInsertMissingToData(ocopy.insertMissingToData);
            lvaluePtr = evalQuery(lvalue, null, lexpr.expression,
                    new EvaluationContextProxy(lexpr.getVariable(), lvalue));
            if (__log.isDebugEnabled())
                __log.debug("lvaluePtr expr res " + lvaluePtr);
        }

        // For partner link assignmenent, the whole content is assigned.
        if (ocopy.to instanceof OAssign.PartnerLinkRef) {
            OAssign.PartnerLinkRef pLinkRef = ((OAssign.PartnerLinkRef) ocopy.to);
            PartnerLinkInstance plval = _scopeFrame.resolve(pLinkRef.partnerLink);
            replaceEndpointRefence(plval, rvalue);
            se = new PartnerLinkModificationEvent(((OAssign.PartnerLinkRef) ocopy.to).partnerLink.getName());
        } else {
            // Sneakily converting the EPR if it's not the format expected by the lvalue
            if (ocopy.from instanceof OAssign.PartnerLinkRef) {
                rvalue = getBpelRuntimeContext().convertEndpointReference((Element) rvalue, lvaluePtr);
                if (rvalue.getNodeType() == Node.DOCUMENT_NODE)
                    rvalue = ((Document) rvalue).getDocumentElement();
            }

            Node parentNode = lvaluePtr.getParentNode();
            if (headerAssign && parentNode != null && "message".equals(parentNode.getNodeName())
                    && rvalue.getNodeType() == Node.ELEMENT_NODE) {
                lvalue = copyInto((Element) lvalue, (Element) lvaluePtr, (Element) rvalue);
            } else if (rvalue.getNodeType() == Node.ELEMENT_NODE
                    && lvaluePtr.getNodeType() == Node.ELEMENT_NODE) {
                lvalue = replaceElement((Element) lvalue, (Element) lvaluePtr, (Element) rvalue,
                        ocopy.keepSrcElementName);
            } else {
                lvalue = replaceContent(lvalue, lvaluePtr, rvalue.getTextContent());
            }
            final VariableInstance lval = _scopeFrame.resolve(ocopy.to.getVariable());
            if (__log.isDebugEnabled())
                __log.debug("ASSIGN Writing variable '" + lval.declaration.name + "' value '"
                        + DOMUtils.domToString(lvalue) + "'");
            commitChanges(lval, lvalue);
            se = new VariableModificationEvent(lval.declaration.name);
            ((VariableModificationEvent) se).setNewValue(lvalue);
        }
    }

    if (ocopy.debugInfo != null)
        se.setLineNo(ocopy.debugInfo.startLine);
    sendEvent(se);
}

From source file:org.apache.ode.bpel.runtime.ASSIGN.java

private Element replaceElement(Element lval, Element ptr, Element src, boolean keepSrcElement) {
    Document doc = ptr.getOwnerDocument();
    Node parent = ptr.getParentNode();
    if (keepSrcElement) {
        Element replacement = (Element) doc.importNode(src, true);
        parent.replaceChild(replacement, ptr);
        return (lval == ptr) ? replacement : lval;
    }//from   w ww .j av a 2  s. co  m

    Element replacement = doc.createElementNS(ptr.getNamespaceURI(), ptr.getTagName());
    NodeList nl = src.getChildNodes();
    for (int i = 0; i < nl.getLength(); ++i)
        replacement.appendChild(doc.importNode(nl.item(i), true));
    copyAttributes(doc, ptr, replacement);
    copyAttributes(doc, src, replacement);
    parent.replaceChild(replacement, ptr);
    DOMUtils.copyNSContext(ptr, replacement);

    return (lval == ptr) ? replacement : lval;
}

From source file:org.apache.ode.bpel.runtime.AssignHelper.java

/**
 * Get the r-value. There are several possibilities:
 * <ul>/*ww  w . java 2s  .  com*/
 * <li>a message is selected - an element representing the whole message is
 * returned.</li>
 * <li>a (element) message part is selected - the element is returned.
 * </li>
 * <li>a (typed) message part is select - a wrapper element is returned.
 * </li>
 * <li>an attribute is selected - an attribute node is returned. </li>
 * <li>a text node/string expression is selected - a text node is returned.
 * </li>
 * </ul>
 *
 * @param from
 *
 * @return Either {@link Element}, {@link org.w3c.dom.Text}, or
 *         {@link org.w3c.dom.Attr} node representing the r-value.
 *
 * @throws FaultException
 *             DOCUMENTME
 * @throws UnsupportedOperationException
 *             DOCUMENTME
 * @throws IllegalStateException
 *             DOCUMENTME
 */
private Node evalRValue(OAssign.RValue from) throws FaultException, ExternalVariableModuleException {
    if (__log.isDebugEnabled())
        __log.debug("Evaluating FROM expression \"" + from + "\".");

    Node retVal;
    if (from instanceof DirectRef) {
        OAssign.DirectRef dref = (OAssign.DirectRef) from;
        sendVariableReadEvent(_scopeFrame.resolve(dref.variable));
        Node data = fetchVariableData(_scopeFrame.resolve(dref.variable), false);
        retVal = DOMUtils.findChildByName((Element) data, dref.elName);
    } else if (from instanceof OAssign.VariableRef) {
        OAssign.VariableRef varRef = (OAssign.VariableRef) from;
        sendVariableReadEvent(_scopeFrame.resolve(varRef.variable));
        Node data = fetchVariableData(_scopeFrame.resolve(varRef.variable), false);
        retVal = evalQuery(data, varRef.part != null ? varRef.part : varRef.headerPart, varRef.location,
                getEvaluationContext());
    } else if (from instanceof OAssign.PropertyRef) {
        OAssign.PropertyRef propRef = (OAssign.PropertyRef) from;
        sendVariableReadEvent(_scopeFrame.resolve(propRef.variable));
        Node data = fetchVariableData(_scopeFrame.resolve(propRef.variable), false);
        retVal = evalQuery(data, propRef.propertyAlias.part, propRef.propertyAlias.location,
                getEvaluationContext());
    } else if (from instanceof OAssign.PartnerLinkRef) {
        OAssign.PartnerLinkRef pLinkRef = (OAssign.PartnerLinkRef) from;
        PartnerLinkInstance pLink = _scopeFrame.resolve(pLinkRef.partnerLink);
        Node tempVal = pLinkRef.isMyEndpointReference
                ? getBpelRuntimeContext().fetchMyRoleEndpointReferenceData(pLink)
                : getBpelRuntimeContext().fetchPartnerRoleEndpointReferenceData(pLink);
        if (__log.isDebugEnabled())
            __log.debug("RValue is a partner link, corresponding endpoint " + tempVal.getClass().getName()
                    + " has value " + DOMUtils.domToString(tempVal));
        retVal = tempVal;
    } else if (from instanceof OAssign.Expression) {
        List<Node> l;
        OExpression expr = ((OAssign.Expression) from).expression;
        try {
            l = getBpelRuntimeContext().getExpLangRuntime().evaluate(expr, getEvaluationContext());
        } catch (EvaluationException e) {
            String msg = __msgs.msgEvalException(from.toString(), e.getMessage());
            if (__log.isDebugEnabled())
                __log.debug(from + ": " + msg);
            if (e.getCause() instanceof FaultException)
                throw (FaultException) e.getCause();
            throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);
        }
        if (l.size() == 0) {
            String msg = __msgs.msgRValueNoNodesSelected(expr.toString());
            if (__log.isDebugEnabled())
                __log.debug(from + ": " + msg);
            throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg,
                    new Throwable("ignoreMissingFromData"));
        } else if (l.size() > 1) {
            String msg = __msgs.msgRValueMultipleNodesSelected(expr.toString());
            if (__log.isDebugEnabled())
                __log.debug(from + ": " + msg);
            throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);
        }
        retVal = (Node) l.get(0);
    } else if (from instanceof OAssign.Literal) {
        String literal = ((OAssign.Literal) from).getXmlLiteral();
        Element literalRoot;
        try {
            literalRoot = DOMUtils.stringToDOM(literal);
        } catch (Exception e) {
            throw new RuntimeException("XML literal parsing failed " + literal, e);
        }
        assert literalRoot.getLocalName().equals("literal");
        // We'd like a single text node...

        literalRoot.normalize();
        retVal = literalRoot.getFirstChild();

        // Adjust for whitespace before an element.
        if (retVal != null && retVal.getNodeType() == Node.TEXT_NODE
                && retVal.getTextContent().trim().length() == 0 && retVal.getNextSibling() != null) {
            retVal = retVal.getNextSibling();
        }

        if (retVal == null) {
            // Special case, no children --> empty TII
            retVal = literalRoot.getOwnerDocument().createTextNode("");
        } else if (retVal.getNodeType() == Node.ELEMENT_NODE) {
            // Make sure there is no more elements.
            Node x = retVal.getNextSibling();
            while (x != null) {
                if (x.getNodeType() == Node.ELEMENT_NODE) {
                    String msg = __msgs.msgLiteralContainsMultipleEIIs();
                    if (__log.isDebugEnabled())
                        __log.debug(from + ": " + msg);
                    throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);

                }
                x = x.getNextSibling();
            }
        } else if (retVal.getNodeType() == Node.TEXT_NODE) {
            // Make sure there are no elements following this text node.
            Node x = retVal.getNextSibling();
            while (x != null) {
                if (x.getNodeType() == Node.ELEMENT_NODE) {
                    String msg = __msgs.msgLiteralContainsMixedContent();
                    if (__log.isDebugEnabled())
                        __log.debug(from + ": " + msg);
                    throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);

                }
                x = x.getNextSibling();
            }

        }

        if (retVal == null) {
            String msg = __msgs.msgLiteralMustContainTIIorEII();
            if (__log.isDebugEnabled())
                __log.debug(from + ": " + msg);
            throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);
        }
    } else {
        String msg = __msgs.msgInternalError("Unknown RVALUE type: " + from);
        if (__log.isErrorEnabled())
            __log.error(from + ": " + msg);
        throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);
    }

    // Now verify we got something.
    if (retVal == null) {
        String msg = __msgs.msgEmptyRValue();
        if (__log.isDebugEnabled())
            __log.debug(from + ": " + msg);
        throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);
    }

    // Now check that we got the right thing.
    switch (retVal.getNodeType()) {
    case Node.TEXT_NODE:
    case Node.ATTRIBUTE_NODE:
    case Node.ELEMENT_NODE:
    case Node.CDATA_SECTION_NODE:
        break;
    default:
        String msg = __msgs.msgInvalidRValue();
        if (__log.isDebugEnabled())
            __log.debug(from + ": " + msg);

        throw new FaultException(getOActivity().getOwner().constants.qnSelectionFailure, msg);

    }

    return retVal;
}

From source file:org.apache.ode.bpel.runtime.AssignHelper.java

protected void copy(OAssign.Copy ocopy) throws FaultException, ExternalVariableModuleException {

    if (__log.isDebugEnabled())
        __log.debug("Assign.copy(" + ocopy + ")");

    ScopeEvent se;//  w  w w  .j  a  va2s  .co m

    // Check for message to message - copy, we can do this efficiently in
    // the database.
    if ((ocopy.to instanceof VariableRef && ((VariableRef) ocopy.to).isMessageRef())
            || (ocopy.from instanceof VariableRef && ((VariableRef) ocopy.from).isMessageRef())) {

        if ((ocopy.to instanceof VariableRef && ((VariableRef) ocopy.to).isMessageRef())
                && ocopy.from instanceof VariableRef && ((VariableRef) ocopy.from).isMessageRef()) {

            final VariableInstance lval = _scopeFrame.resolve(ocopy.to.getVariable());
            final VariableInstance rval = _scopeFrame.resolve(((VariableRef) ocopy.from).getVariable());
            Element lvalue = (Element) fetchVariableData(rval, false);
            initializeVariable(lval, lvalue);
            se = new VariableModificationEvent(lval.declaration.name);
            ((VariableModificationEvent) se).setNewValue(lvalue);
        } else {
            // This really should have been caught by the compiler.
            __log.fatal("Message/Non-Message Assignment, should be caught by compiler:" + ocopy);
            throw new FaultException(ocopy.getOwner().constants.qnSelectionFailure,
                    "Message/Non-Message Assignment:  " + ocopy);
        }
    } else {
        // Conventional Assignment logic.
        Node rvalue = evalRValue(ocopy.from);
        Node lvalue = evalLValue(ocopy.to);
        if (__log.isDebugEnabled()) {
            __log.debug("lvalue after eval " + lvalue);
            if (lvalue != null)
                __log.debug("content " + DOMUtils.domToString(lvalue));
        }

        // Get a pointer within the lvalue.
        Node lvaluePtr = lvalue;
        boolean headerAssign = false;
        if (ocopy.to instanceof OAssign.DirectRef) {
            DirectRef dref = ((DirectRef) ocopy.to);
            Element el = DOMUtils.findChildByName((Element) lvalue, dref.elName);
            if (el == null) {
                el = (Element) ((Element) lvalue).appendChild(lvalue.getOwnerDocument()
                        .createElementNS(dref.elName.getNamespaceURI(), dref.elName.getLocalPart()));
            }
            lvaluePtr = el;
        } else if (ocopy.to instanceof OAssign.VariableRef) {
            VariableRef varRef = ((VariableRef) ocopy.to);
            if (varRef.headerPart != null)
                headerAssign = true;
            lvaluePtr = evalQuery(lvalue, varRef.part != null ? varRef.part : varRef.headerPart,
                    varRef.location, new EvaluationContextProxy(varRef.getVariable(), lvalue));
        } else if (ocopy.to instanceof OAssign.PropertyRef) {
            PropertyRef propRef = ((PropertyRef) ocopy.to);
            lvaluePtr = evalQuery(lvalue, propRef.propertyAlias.part, propRef.propertyAlias.location,
                    new EvaluationContextProxy(propRef.getVariable(), lvalue));
        } else if (ocopy.to instanceof OAssign.LValueExpression) {
            LValueExpression lexpr = (LValueExpression) ocopy.to;
            lexpr.setInsertMissingToData(ocopy.insertMissingToData);
            lvaluePtr = evalQuery(lvalue, null, lexpr.expression,
                    new EvaluationContextProxy(lexpr.getVariable(), lvalue));
            if (__log.isDebugEnabled())
                __log.debug("lvaluePtr expr res " + lvaluePtr);
        }

        // For partner link assignmenent, the whole content is assigned.
        if (ocopy.to instanceof OAssign.PartnerLinkRef) {
            OAssign.PartnerLinkRef pLinkRef = ((OAssign.PartnerLinkRef) ocopy.to);
            PartnerLinkInstance plval = _scopeFrame.resolve(pLinkRef.partnerLink);
            replaceEndpointRefence(plval, rvalue);
            se = new PartnerLinkModificationEvent(((OAssign.PartnerLinkRef) ocopy.to).partnerLink.getName());
        } else {
            // Sneakily converting the EPR if it's not the format expected by the lvalue
            if (ocopy.from instanceof OAssign.PartnerLinkRef) {
                rvalue = getBpelRuntimeContext().convertEndpointReference((Element) rvalue, lvaluePtr);
                if (rvalue.getNodeType() == Node.DOCUMENT_NODE)
                    rvalue = ((Document) rvalue).getDocumentElement();
            }

            Node parentNode = lvaluePtr.getParentNode();
            if (headerAssign && parentNode != null && "message".equals(parentNode.getNodeName())
                    && rvalue.getNodeType() == Node.ELEMENT_NODE) {
                lvalue = copyInto((Element) lvalue, (Element) lvaluePtr, (Element) rvalue);
            } else if (rvalue.getNodeType() == Node.ELEMENT_NODE
                    && lvaluePtr.getNodeType() == Node.ELEMENT_NODE) {
                lvalue = replaceElement((Element) lvalue, (Element) lvaluePtr, (Element) rvalue,
                        ocopy.keepSrcElementName);
            } else {
                lvalue = replaceContent(lvalue, lvaluePtr, rvalue.getTextContent());
            }
            final VariableInstance lval = _scopeFrame.resolve(ocopy.to.getVariable());
            if (__log.isDebugEnabled())
                __log.debug("ASSIGN Writing variable '" + lval.declaration.name + "' value '"
                        + DOMUtils.domToString(lvalue) + "'");
            commitChanges(lval, lvalue);
            se = new VariableModificationEvent(lval.declaration.name);
            ((VariableModificationEvent) se).setNewValue(lvalue);
        }
    }

    if (ocopy.debugInfo != null)
        se.setLineNo(ocopy.debugInfo.startLine);
    sendEvent(se);
}

From source file:org.apache.ode.bpel.runtime.AssignHelper.java

private Element replaceElement(Element lval, Element ptr, Element src, boolean keepSrcElement) {
    Document doc = ptr.getOwnerDocument();
    Node parent = ptr.getParentNode();
    if (keepSrcElement) {
        Element replacement = (Element) doc.importNode(src, true);
        parent.replaceChild(replacement, ptr);
        return (lval == ptr) ? replacement : lval;
    }/*from   w  w  w.j a  va2s  . c o  m*/

    Element replacement = doc.createElementNS(ptr.getNamespaceURI(), ptr.getTagName());
    NodeList nl = src.getChildNodes();
    for (int i = 0; i < nl.getLength(); ++i)
        replacement.appendChild(doc.importNode(nl.item(i), true));
    NamedNodeMap attrs = src.getAttributes();
    for (int i = 0; i < attrs.getLength(); ++i) {
        Attr attr = (Attr) attrs.item(i);
        if (!attr.getName().startsWith("xmlns")) {
            replacement.setAttributeNodeNS((Attr) doc.importNode(attrs.item(i), true));
            // Case of qualified attribute values, we're forced to add corresponding namespace declaration manually
            int colonIdx = attr.getValue().indexOf(":");
            if (colonIdx > 0) {
                String prefix = attr.getValue().substring(0, colonIdx);
                String attrValNs = src.lookupPrefix(prefix);
                if (attrValNs != null)
                    replacement.setAttributeNS(DOMUtils.NS_URI_XMLNS, "xmlns:" + prefix, attrValNs);
            }
        }
    }
    parent.replaceChild(replacement, ptr);
    DOMUtils.copyNSContext(ptr, replacement);

    return (lval == ptr) ? replacement : lval;
}

From source file:org.apache.ode.utils.DOMUtils.java

/**
 * @deprecated relies on XMLSerializer which is a deprecated Xerces class, use domToString instead
 *//*from   ww w  . j  ava2 s.c  o m*/
static public String prettyPrint(Element e) throws IOException {
    OutputFormat format = new OutputFormat(e.getOwnerDocument());
    format.setLineWidth(65);
    format.setIndenting(true);
    format.setIndent(2);
    StringWriter out = new StringWriter();
    XMLSerializer serializer = new XMLSerializer(out, format);
    serializer.serialize(e);

    return out.toString();
}

From source file:org.apache.ode.utils.DOMUtils.java

public static void serialize(Element elmt, OutputStream ostr) {
    String usedEncoding = "UTF-8";
    Document parent = elmt.getOwnerDocument();
    if (parent != null) {
        String parentEncoding = parent.getXmlEncoding();
        if (parentEncoding != null) {
            usedEncoding = parentEncoding;
        }// ww w .  j ava 2 s . com
    }

    DOMOutputImpl out = new DOMOutputImpl();
    out.setEncoding(usedEncoding);

    DOMSerializerImpl ser = new DOMSerializerImpl();
    out.setByteStream(ostr);
    ser.write(elmt, out);
}