michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0:  *
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsRDFXMLSerializer_h__
michael@0: #define nsRDFXMLSerializer_h__
michael@0: 
michael@0: #include "nsIRDFLiteral.h"
michael@0: #include "nsIRDFXMLSerializer.h"
michael@0: #include "nsIRDFXMLSource.h"
michael@0: #include "nsNameSpaceMap.h"
michael@0: #include "nsXPIDLString.h"
michael@0: 
michael@0: #include "nsDataHashtable.h"
michael@0: #include "rdfITripleVisitor.h"
michael@0: 
michael@0: class nsString;
michael@0: class nsIOutputStream;
michael@0: class nsIRDFContainerUtils;
michael@0: 
michael@0: /**
michael@0:  * A helper class that can serialize RDF/XML from a
michael@0:  * datasource. Implements both nsIRDFXMLSerializer and
michael@0:  * nsIRDFXMLSource.
michael@0:  */
michael@0: class nsRDFXMLSerializer : public nsIRDFXMLSerializer,
michael@0:                            public nsIRDFXMLSource
michael@0: {
michael@0: public:
michael@0:     static nsresult
michael@0:     Create(nsISupports* aOuter, REFNSIID aIID, void** aResult);
michael@0: 
michael@0:     NS_DECL_ISUPPORTS
michael@0:     NS_DECL_NSIRDFXMLSERIALIZER
michael@0:     NS_DECL_NSIRDFXMLSOURCE
michael@0: 
michael@0: protected:
michael@0:     nsRDFXMLSerializer();
michael@0:     virtual ~nsRDFXMLSerializer();
michael@0: 
michael@0:     // Implementation methods
michael@0:     nsresult
michael@0:     RegisterQName(nsIRDFResource* aResource);
michael@0:     nsresult
michael@0:     GetQName(nsIRDFResource* aResource, nsCString& aQName);
michael@0:     already_AddRefed<nsIAtom>
michael@0:     EnsureNewPrefix();
michael@0: 
michael@0:     nsresult
michael@0:     SerializeInlineAssertion(nsIOutputStream* aStream,
michael@0:                              nsIRDFResource* aResource,
michael@0:                              nsIRDFResource* aProperty,
michael@0:                              nsIRDFLiteral* aValue);
michael@0: 
michael@0:     nsresult
michael@0:     SerializeChildAssertion(nsIOutputStream* aStream,
michael@0:                             nsIRDFResource* aResource,
michael@0:                             nsIRDFResource* aProperty,
michael@0:                             nsIRDFNode* aValue);
michael@0: 
michael@0:     nsresult
michael@0:     SerializeProperty(nsIOutputStream* aStream,
michael@0:                       nsIRDFResource* aResource,
michael@0:                       nsIRDFResource* aProperty,
michael@0:                       bool aInline,
michael@0:                       int32_t* aSkipped);
michael@0: 
michael@0:     bool
michael@0:     IsContainerProperty(nsIRDFResource* aProperty);
michael@0: 
michael@0:     nsresult
michael@0:     SerializeDescription(nsIOutputStream* aStream,
michael@0:                          nsIRDFResource* aResource);
michael@0: 
michael@0:     nsresult
michael@0:     SerializeMember(nsIOutputStream* aStream,
michael@0:                     nsIRDFResource* aContainer,
michael@0:                     nsIRDFNode* aMember);
michael@0: 
michael@0:     nsresult
michael@0:     SerializeContainer(nsIOutputStream* aStream,
michael@0:                        nsIRDFResource* aContainer);
michael@0: 
michael@0:     nsresult
michael@0:     SerializePrologue(nsIOutputStream* aStream);
michael@0: 
michael@0:     nsresult
michael@0:     SerializeEpilogue(nsIOutputStream* aStream);
michael@0: 
michael@0:     nsresult
michael@0:     CollectNamespaces();
michael@0: 
michael@0:     bool
michael@0:     IsA(nsIRDFDataSource* aDataSource, nsIRDFResource* aResource, nsIRDFResource* aType);
michael@0: 
michael@0:     nsCOMPtr<nsIRDFDataSource> mDataSource;
michael@0:     nsNameSpaceMap mNameSpaces;
michael@0:     nsXPIDLCString mBaseURLSpec;
michael@0: 
michael@0:     // hash mapping resources to utf8-encoded QNames
michael@0:     nsDataHashtable<nsISupportsHashKey, nsCString> mQNames;
michael@0:     friend class QNameCollector;
michael@0: 
michael@0:     uint32_t mPrefixID;
michael@0: 
michael@0:     static int32_t gRefCnt;
michael@0:     static nsIRDFResource* kRDF_instanceOf;
michael@0:     static nsIRDFResource* kRDF_type;
michael@0:     static nsIRDFResource* kRDF_nextVal;
michael@0:     static nsIRDFResource* kRDF_Bag;
michael@0:     static nsIRDFResource* kRDF_Seq;
michael@0:     static nsIRDFResource* kRDF_Alt;
michael@0:     static nsIRDFContainerUtils* gRDFC;
michael@0: };
michael@0: 
michael@0: #endif // nsRDFXMLSerializer_h__