X-Git-Url: http://www.project-moonshot.org/gitweb/?a=blobdiff_plain;f=xmltooling%2FXMLObject.h;h=b311cb562ca760283f42745e1df1ce00639c0ea2;hb=fbb50076025b3885017ebae06b5e67af42303e96;hp=83e003e1956ba037c15a72fa7103a50f4f2676ee;hpb=8bbee91cee3a23e008eeab7cb238f16cbd5ac806;p=shibboleth%2Fcpp-xmltooling.git diff --git a/xmltooling/XMLObject.h b/xmltooling/XMLObject.h index 83e003e..b311cb5 100644 --- a/xmltooling/XMLObject.h +++ b/xmltooling/XMLObject.h @@ -1,151 +1,328 @@ -/* - * Copyright 2001-2006 Internet2 - * - * Licensed 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. - */ - -/** - * @file XMLObject.h - * - * Abstract interface to objects that can be manipulated in and out of XML form. - */ - -#if !defined(__xmltooling_xmlobj_h__) -#define __xmltooling_xmlobj_h__ - -#include -#include -#include -#include - -namespace xmltooling { - - /** - * Object that represents an XML Element that has been unmarshalled into this C++ object. - */ - class XMLTOOL_API XMLObject - { - MAKE_NONCOPYABLE(XMLObject); - public: - XMLObject() {} - virtual ~XMLObject() {} - - /** - * Creates a copy of the object, along with all of its children. - * - * The new object tree will be completely distinct and independent of - * the original in all respects. - */ - virtual XMLObject* clone() const=0; - - /** - * Gets the QName for this element. This QName MUST - * contain the namespace URI, namespace prefix, and local element name. - * - * @return constant reference to the QName for this object - */ - virtual const QName& getElementQName() const=0; - - /** - * Sets the namespace prefix for this element. - * - * @param prefix the prefix for this element - */ - virtual void setElementNamespacePrefix(const XMLCh* prefix)=0; - - /** - * Gets the namespaces that are scoped to this element. - * - * The caller MUST NOT modify the set returned, but may use any - * non-modifying operations or algorithms on it. Iterators will - * remain valid unless the set member referenced is removed using - * the removeNamespace method. - * - * @return the namespaces that are scoped to this element - */ - virtual const std::set& getNamespaces() const=0; - - /** - * Adds a namespace to the ones already scoped to this element - * - * @param ns the namespace to add - */ - virtual void addNamespace(const Namespace& ns)=0; - - /** - * Removes a namespace from this element - * - * @param ns the namespace to remove - */ - virtual void removeNamespace(const Namespace& ns)=0; - - /** - * Gets the XML schema type of this element. This translates to contents the xsi:type - * attribute for the element. - * - * @return XML schema type of this element - */ - virtual const QName* getSchemaType() const=0; - - /** - * Sets the XML schema type of this element. This translates to contents the xsi:type - * attribute for the element. - * - * @param type XML schema type of this element - */ - virtual void setSchemaType(const QName* type)=0; - - /** - * Checks to see if this object has a parent. - * - * @return true if the object has a parent, false if not - */ - virtual bool hasParent() const=0; - - /** - * Gets the parent of this element or null if there is no parent. - * - * @return the parent of this element or null - */ - virtual XMLObject* getParent() const=0; - - /** - * Sets the parent of this element. - * - * @param parent the parent of this element - */ - virtual void setParent(XMLObject* parent)=0; - - /** - * Checks if this XMLObject has children. - * - * @return true if this XMLObject has children, false if not - */ - virtual bool hasChildren() const=0; - - /** - * Stores an unmodifiable list of child objects in the order that they - * will appear in the serialized representation. - * - * The validity of the returned objects is not maintained if any non-const - * operations are performed on the parent object. - * - * @param v vector in which to store pointers to child objects - * @return the number of children - */ - virtual size_t getOrderedChildren(std::vector& v) const=0; - }; - -}; - -#endif /* __xmltooling_xmlobj_h__ */ +/* + * Copyright 2001-2007 Internet2 + * + * Licensed 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. + */ + +/** + * @file XMLObject.h + * + * Abstract interface to objects that can be manipulated in and out of XML form. + */ + +#ifndef __xmltooling_xmlobj_h__ +#define __xmltooling_xmlobj_h__ + +#include +#include + +#include +#include +#include +#include + +#ifndef XMLTOOLING_NO_XMLSEC +namespace xmlsignature { + class XMLTOOL_API Signature; +}; +#endif + +#if defined (_MSC_VER) + #pragma warning( push ) + #pragma warning( disable : 4250 4251 ) +#endif + +namespace xmltooling { + +#ifndef XMLTOOLING_NO_XMLSEC + class XMLTOOL_API Credential; +#endif + + /** + * Object that represents an XML Element that has been unmarshalled into this C++ object. + */ + class XMLTOOL_API XMLObject + { + public: + virtual ~XMLObject() {} + + /** + * Creates a copy of the object, along with all of its children. + * + * The new object tree will be completely distinct and independent of + * the original in all respects. + */ + virtual XMLObject* clone() const=0; + + /** + * Specialized function for detaching a child object from its parent + * while disposing of the parent. + * + * This is not a generic way of detaching any child object, but only of + * pruning a single child from the root of an XMLObject tree. If the + * detached XMLObject's parent is itself a child, an exception will be + * thrown. It's mainly useful for turning a child into the new root of + * the tree without having to clone the child. + */ + virtual void detach()=0; + + /** + * Gets the QName for this element. This QName MUST + * contain the namespace URI, namespace prefix, and local element name. + * + * @return constant reference to the QName for this object + */ + virtual const QName& getElementQName() const=0; + + /** + * Gets the namespaces that are scoped to this element. + * + * The caller MUST NOT modify the set returned, but may use any + * non-modifying operations or algorithms on it. Iterators will + * remain valid unless the set member referenced is removed using + * the removeNamespace method. + * + * @return the namespaces that are scoped to this element + */ + virtual const std::set& getNamespaces() const=0; + + /** + * Adds a namespace to the ones already scoped to this element + * + * @param ns the namespace to add + */ + virtual void addNamespace(const Namespace& ns) const=0; + + /** + * Removes a namespace from this element + * + * @param ns the namespace to remove + */ + virtual void removeNamespace(const Namespace& ns)=0; + + /** + * Gets the XML schema type of this element. This translates to contents the xsi:type + * attribute for the element. + * + * @return XML schema type of this element + */ + virtual const QName* getSchemaType() const=0; + + /** + * Gets the value of the ID attribute set on this object, if any. + * + * @return an ID value or NULL + */ + virtual const XMLCh* getXMLID() const=0; + + /** + * Checks to see if this object has a parent. + * + * @return true if the object has a parent, false if not + */ + virtual bool hasParent() const=0; + + /** + * Gets the parent of this element or null if there is no parent. + * + * @return the parent of this element or null + */ + virtual XMLObject* getParent() const=0; + + /** + * Sets the parent of this element. + * + * @param parent the parent of this element + */ + virtual void setParent(XMLObject* parent)=0; + + /** + * Checks if this XMLObject has children. + * + * @return true if this XMLObject has children, false if not + */ + virtual bool hasChildren() const=0; + + /** + * Returns an unmodifiable list of child objects in the order that they + * should appear in the serialized representation. + * + * The validity of the returned list is not maintained if any non-const + * operations are performed on the parent object. + * + * @return the list of children + */ + virtual const std::list& getOrderedChildren() const=0; + + /** + * Used by a child's detach method to isolate the child from + * this parent object in preparation for destroying the parent + * (this object). + * + * @param child the child object to remove + */ + virtual void removeChild(XMLObject* child)=0; + + /** + * Returns the text content at the specified position relative to + * any child elements. A zero represents leading text, 1 comes after + * the first child, and so forth. + * + * @param position the relative child element position of the text + * @return the designated text value + */ + virtual const XMLCh* getTextContent(unsigned int position=0) const=0; + + /** + * Sets (or clears) text content relative to a child element's position. + * + * @param value value to set, or NULL to clear + * @param position position relative to child element + */ + virtual void setTextContent(const XMLCh* value, unsigned int position=0)=0; + + /** + * Gets the DOM representation of this XMLObject, if one exists. + * + * @return the DOM representation of this XMLObject + */ + virtual xercesc::DOMElement* getDOM() const=0; + + /** + * Sets the DOM representation of this XMLObject. + * + * @param dom DOM representation of this XMLObject + * @param bindDocument true if the object should take ownership of the associated Document + */ + virtual void setDOM(xercesc::DOMElement* dom, bool bindDocument=false) const=0; + + /** + * Assigns ownership of a DOM document to the XMLObject. + * This binds the lifetime of the document to the lifetime of the object. + * + * @param doc DOM document bound to this object + */ + virtual void setDocument(xercesc::DOMDocument* doc) const=0; + + /** + * Releases the DOM representation of this XMLObject, if there is one. + */ + virtual void releaseDOM() const=0; + + /** + * Releases the DOM representation of this XMLObject's parent. + * + * @param propagateRelease true if all ancestors of this element should release their DOM + */ + virtual void releaseParentDOM(bool propagateRelease=true) const=0; + + /** + * Releases the DOM representation of this XMLObject's children. + * + * @param propagateRelease true if all descendants of this element should release their DOM + */ + virtual void releaseChildrenDOM(bool propagateRelease=true) const=0; + + /** + * A convenience method that is equal to calling releaseDOM() then releaseParentDOM(true). + */ + void releaseThisandParentDOM() const { + if (getDOM()) { + releaseDOM(); + releaseParentDOM(true); + } + } + + /** + * A convenience method that is equal to calling releaseChildrenDOM(true) then releaseDOM(). + */ + void releaseThisAndChildrenDOM() const { + if (getDOM()) { + releaseChildrenDOM(true); + releaseDOM(); + } + } + + /** + * Marshalls the XMLObject, and its children, into a DOM element. + * If a document is supplied, then it will be used to create the resulting elements. + * If the document does not have a Document Element set, then the resulting + * element will be set as the Document Element. If no document is supplied, then + * a new document will be created and bound to the lifetime of the root object being + * marshalled, unless an existing DOM can be reused without creating a new document. + * + * @param document the DOM document the marshalled element will be placed in, or NULL + * @param sigs ordered array of signatures to create after marshalling is complete + * @param credential optional credential to supply signing key and related info + * @return the DOM element representing this XMLObject + * + * @throws MarshallingException thrown if there is a problem marshalling the given object + * @throws SignatureException thrown if a problem occurs during signature creation + */ + virtual xercesc::DOMElement* marshall( + xercesc::DOMDocument* document=NULL +#ifndef XMLTOOLING_NO_XMLSEC + ,const std::vector* sigs=NULL + ,const Credential* credential=NULL +#endif + ) const=0; + + /** + * Marshalls the XMLObject and appends it as a child of the given parent element. + * + * NOTE: The given Element must be within a DOM tree rooted in + * the Document owning the given Element. + * + * @param parentElement the parent element to append the resulting DOM tree + * @param sigs ordered array of signatures to create after marshalling is complete + * @param credential optional credential to supply signing key and related info + * @return the marshalled element tree + + * @throws MarshallingException thrown if the given XMLObject can not be marshalled. + * @throws SignatureException thrown if a problem occurs during signature creation + */ + virtual xercesc::DOMElement* marshall( + xercesc::DOMElement* parentElement +#ifndef XMLTOOLING_NO_XMLSEC + ,const std::vector* sigs=NULL + ,const Credential* credential=NULL +#endif + ) const=0; + + /** + * Unmarshalls the given W3C DOM element into the XMLObject. + * The root of a given XML construct should be unmarshalled with the bindDocument parameter + * set to true. + * + * @param element the DOM element to unmarshall + * @param bindDocument true iff the resulting XMLObject should take ownership of the DOM's Document + * + * @return the unmarshalled XMLObject + * + * @throws UnmarshallingException thrown if an error occurs unmarshalling the DOM element into the XMLObject + */ + virtual XMLObject* unmarshall(xercesc::DOMElement* element, bool bindDocument=false)=0; + + protected: + XMLObject() {} + private: + XMLObject& operator=(const XMLObject& src); + }; + +}; + +#if defined (_MSC_VER) + #pragma warning( pop ) +#endif + +#endif /* __xmltooling_xmlobj_h__ */