mirror of
https://github.com/mozilla/gecko-dev.git
synced 2025-01-29 17:40:42 +00:00
First cut at a file system data source.
This commit is contained in:
rjc%netscape.com
parent
98efa72355
commit
e461a26fdd
@ -1,2 +1,3 @@
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nsIRDFMail.h
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nsIRDFFileSystem.h
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@ -26,6 +26,7 @@ MODULE = rdf
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EXPORTS = \
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nsIRDFMail.h \
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nsIRDFFileSystem.h \
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$(NULL)
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EXPORTS := $(addprefix $(srcdir)/, $(EXPORTS))
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@ -22,6 +22,7 @@ DEPTH=..\..\..
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EXPORTS = \
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nsIRDFMail.h \
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nsIRDFFileSystem.h \
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$(NULL)
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include <$(DEPTH)/config/rules.mak>
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50
rdf/datasource/public/nsIRDFFileSystem.h
Normal file
50
rdf/datasource/public/nsIRDFFileSystem.h
Normal file
@ -0,0 +1,50 @@
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsIRDFFileSystem_h__
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#define nsIRDFFileSystem_h__
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#include "nscore.h"
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#include "nsISupports.h"
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#define NS_IRDFFILESYSTEMDATAOURCE_IID \
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{ 0x1222e6f0, 0xa5e3, 0x11d2, { 0x8b, 0x7c, 0x00, 0x80, 0x5f, 0x8a, 0x7d, 0xb5 } }
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class nsIRDFFileSystemDataSource : public nsIRDFDataSource
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{
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public:
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};
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#define NS_IRDFFILESYSTEM_IID \
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{ 0x204a1a00, 0xa5e4, 0x11d2, { 0x8b, 0x7c, 0x00, 0x80, 0x5f, 0x8a, 0x7d, 0xb5 } }
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class nsIRDFFileSystem : public nsIRDFResource
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{
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public:
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NS_IMETHOD GetFolderList(nsIRDFResource *source, nsVoidArray **array) const = 0;
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NS_IMETHOD GetName(nsVoidArray **array) const = 0;
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NS_IMETHOD GetURL(nsVoidArray **array) const = 0;
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};
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#endif // nsIRDFFileSystem_h__
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961
rdf/datasource/src/nsFileSystemDataSource.cpp
Normal file
961
rdf/datasource/src/nsFileSystemDataSource.cpp
Normal file
@ -0,0 +1,961 @@
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/*
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Implementation for a file system RDF data store.
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*/
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/*
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To do:
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1) build up volume list correctly (platform dependant).
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Currently hardcoded, Windows only.
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2) Encode/decode URLs appropriately (0x20 <-> %20, 0x2F <> '/', etc)
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*/
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#include <ctype.h> // for toupper()
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#include <stdio.h>
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#include "nscore.h"
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#include "nsIRDFCursor.h"
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#include "nsIRDFDataSource.h"
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#include "nsIRDFNode.h"
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#include "nsIRDFObserver.h"
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#include "nsIRDFResourceFactory.h"
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#include "nsIServiceManager.h"
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#include "nsString.h"
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#include "nsVoidArray.h" // XXX introduces dependency on raptorbase
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#include "nsRDFCID.h"
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#include "rdfutil.h"
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#include "nsIRDFService.h"
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#include "xp_core.h"
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#include "plhash.h"
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#include "plstr.h"
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#include "prmem.h"
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#include "prprf.h"
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#include "prio.h"
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#include "nsFileSpec.h"
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#include "nsIRDFFileSystem.h"
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#include "nsFileSystemDataSource.h"
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#ifdef XP_WIN
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#include "windef.h"
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#include "winbase.h"
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#endif
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static NS_DEFINE_CID(kRDFServiceCID, NS_RDFSERVICE_CID);
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static NS_DEFINE_IID(kIRDFServiceIID, NS_IRDFSERVICE_IID);
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static NS_DEFINE_IID(kIRDFFileSystemDataSourceIID, NS_IRDFFILESYSTEMDATAOURCE_IID);
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static NS_DEFINE_IID(kIRDFFileSystemIID, NS_IRDFFILESYSTEM_IID);
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static NS_DEFINE_IID(kIRDFAssertionCursorIID, NS_IRDFASSERTIONCURSOR_IID);
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static NS_DEFINE_IID(kIRDFCursorIID, NS_IRDFCURSOR_IID);
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static NS_DEFINE_IID(kIRDFArcsOutCursorIID, NS_IRDFARCSOUTCURSOR_IID);
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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static NS_DEFINE_IID(kIRDFResourceIID, NS_IRDFRESOURCE_IID);
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static NS_DEFINE_IID(kIRDFResourceFactoryIID, NS_IRDFRESOURCEFACTORY_IID);
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static NS_DEFINE_IID(kIRDFNodeIID, NS_IRDFNODE_IID);
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static const char kURINC_FileSystemRoot[] = "NC:FilesRoot";
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DEFINE_RDF_VOCAB(NC_NAMESPACE_URI, NC, child);
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DEFINE_RDF_VOCAB(NC_NAMESPACE_URI, NC, name);
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DEFINE_RDF_VOCAB(NC_NAMESPACE_URI, NC, url);
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DEFINE_RDF_VOCAB(NC_NAMESPACE_URI, NC, Columns);
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DEFINE_RDF_VOCAB(RDF_NAMESPACE_URI, RDF, instanceOf);
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DEFINE_RDF_VOCAB(RDF_NAMESPACE_URI, RDF, Bag);
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static nsIRDFService *gRDFService = nsnull;
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static FileSystemDataSource *gFileSystemDataSource = nsnull;
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static PRBool
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peq(nsIRDFResource* r1, nsIRDFResource* r2)
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{
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PRBool retVal=PR_FALSE, result;
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if (NS_SUCCEEDED(r1->EqualsResource(r2, &result)))
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{
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if (result)
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{
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retVal = PR_TRUE;
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}
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}
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return(retVal);
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}
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nsIRDFResource *FileSystemDataSource::kNC_FileSystemRoot;
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nsIRDFResource *FileSystemDataSource::kNC_Child;
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nsIRDFResource *FileSystemDataSource::kNC_Name;
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nsIRDFResource *FileSystemDataSource::kNC_URL;
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nsIRDFResource *FileSystemDataSource::kNC_Columns;
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nsIRDFResource *FileSystemDataSource::kRDF_InstanceOf;
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nsIRDFResource *FileSystemDataSource::kRDF_Bag;
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FileSystemDataSource::FileSystemDataSource(void)
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: mURI(nsnull),
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mObservers(nsnull)
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{
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NS_INIT_REFCNT();
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nsresult rv = nsServiceManager::GetService(kRDFServiceCID,
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kIRDFServiceIID, (nsISupports**) &gRDFService);
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PR_ASSERT(NS_SUCCEEDED(rv));
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gFileSystemDataSource = this;
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}
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FileSystemDataSource::~FileSystemDataSource (void)
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{
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gRDFService->UnregisterDataSource(this);
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PL_strfree(mURI);
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if (nsnull != mObservers)
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{
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for (PRInt32 i = mObservers->Count(); i >= 0; --i)
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{
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nsIRDFObserver* obs = (nsIRDFObserver*) mObservers->ElementAt(i);
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NS_RELEASE(obs);
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}
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delete mObservers;
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mObservers = nsnull;
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}
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nsrefcnt refcnt;
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NS_RELEASE2(kNC_FileSystemRoot, refcnt);
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NS_RELEASE2(kNC_Child, refcnt);
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NS_RELEASE2(kNC_Name, refcnt);
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NS_RELEASE2(kNC_URL, refcnt);
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NS_RELEASE2(kNC_Columns, refcnt);
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NS_RELEASE2(kRDF_InstanceOf, refcnt);
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NS_RELEASE2(kRDF_Bag, refcnt);
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gFileSystemDataSource = nsnull;
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nsServiceManager::ReleaseService(kRDFServiceCID, gRDFService);
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gRDFService = nsnull;
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}
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NS_IMPL_ISUPPORTS(FileSystemDataSource, kIRDFFileSystemDataSourceIID);
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NS_IMETHODIMP
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FileSystemDataSource::Init(const char *uri)
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{
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nsresult rv = NS_ERROR_OUT_OF_MEMORY;
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if ((mURI = PL_strdup(uri)) == nsnull)
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return rv;
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gRDFService->GetResource(kURINC_FileSystemRoot, &kNC_FileSystemRoot);
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gRDFService->GetResource(kURINC_child, &kNC_Child);
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gRDFService->GetResource(kURINC_name, &kNC_Name);
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gRDFService->GetResource(kURINC_url, &kNC_URL);
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gRDFService->GetResource(kURINC_Columns, &kNC_Columns);
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gRDFService->GetResource(kURIRDF_instanceOf, &kRDF_InstanceOf);
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gRDFService->GetResource(kURIRDF_Bag, &kRDF_Bag);
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// if (NS_FAILED(rv = AddColumns()))
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// return rv;
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// register this as a named data source with the service manager
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if (NS_FAILED(rv = gRDFService->RegisterDataSource(this)))
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return rv;
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return NS_OK;
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}
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NS_IMETHODIMP
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FileSystemDataSource::GetURI(const char **uri) const
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{
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*uri = mURI;
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return NS_OK;
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}
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NS_IMETHODIMP
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FileSystemDataSource::GetSource(nsIRDFResource* property,
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nsIRDFNode* target,
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PRBool tv,
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nsIRDFResource** source /* out */)
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{
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nsresult rv = NS_ERROR_RDF_NO_VALUE;
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return rv;
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}
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NS_IMETHODIMP
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FileSystemDataSource::GetSources(nsIRDFResource *property,
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nsIRDFNode *target,
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PRBool tv,
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nsIRDFAssertionCursor **sources /* out */)
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{
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PR_ASSERT(0);
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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FileSystemDataSource::GetTarget(nsIRDFResource *source,
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nsIRDFResource *property,
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PRBool tv,
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nsIRDFNode **target /* out */)
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{
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nsIRDFFileSystem *fs;
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nsresult rv = NS_ERROR_RDF_NO_VALUE;
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// we only have positive assertions in the file system data source.
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if (! tv)
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return rv;
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if (NS_SUCCEEDED(source->QueryInterface(kIRDFFileSystemIID, (void **) &fs)))
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{
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if (peq(property, kNC_Name))
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{
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// rv = fs->GetName((nsIRDFLiteral **)target);
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}
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else
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{
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rv = NS_ERROR_RDF_NO_VALUE;
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}
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NS_IF_RELEASE(fs);
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}
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return(rv);
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}
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nsresult GetVolumeList(nsVoidArray **array);
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NS_IMETHODIMP
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FileSystemDataSource::GetTargets(nsIRDFResource *source,
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nsIRDFResource *property,
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PRBool tv,
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nsIRDFAssertionCursor **targets /* out */)
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{
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nsIRDFFileSystem *fs;
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nsVoidArray *array = nsnull;
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nsresult rv = NS_ERROR_FAILURE;
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if (peq(source, kNC_FileSystemRoot))
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{
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if (peq(property, kNC_Child))
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{
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rv = GetVolumeList(&array);
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}
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}
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else if (NS_OK == source->QueryInterface(kIRDFFileSystemIID, (void **)&fs))
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{
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if (peq(property, kNC_Child))
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{
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rv = fs->GetFolderList(source, &array);
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}
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else if (peq(property, kNC_Name))
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{
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rv = fs->GetName(&array);
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}
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else if (peq(property, kNC_URL))
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{
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rv = fs->GetURL(&array);
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}
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NS_IF_RELEASE(fs);
|
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}
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if ((rv == NS_OK) && (nsnull != array))
|
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{
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*targets = new FileSystemCursor(source, property, array);
|
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NS_ADDREF(*targets);
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}
|
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return(rv);
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}
|
||||
|
||||
|
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|
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NS_IMETHODIMP
|
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FileSystemDataSource::Assert(nsIRDFResource *source,
|
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nsIRDFResource *property,
|
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nsIRDFNode *target,
|
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PRBool tv)
|
||||
{
|
||||
PR_ASSERT(0);
|
||||
return NS_ERROR_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
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FileSystemDataSource::Unassert(nsIRDFResource *source,
|
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nsIRDFResource *property,
|
||||
nsIRDFNode *target)
|
||||
{
|
||||
PR_ASSERT(0);
|
||||
return NS_ERROR_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemDataSource::HasAssertion(nsIRDFResource *source,
|
||||
nsIRDFResource *property,
|
||||
nsIRDFNode *target,
|
||||
PRBool tv,
|
||||
PRBool *hasAssertion /* out */)
|
||||
{
|
||||
nsIRDFFileSystem *fs = nsnull;
|
||||
PRBool retVal = PR_FALSE;
|
||||
nsresult rv = 0; // xxx
|
||||
|
||||
*hasAssertion = PR_FALSE;
|
||||
if (NS_SUCCEEDED(source->QueryInterface(kIRDFFileSystemIID, (void**) &fs)))
|
||||
{
|
||||
if (peq(property, kRDF_InstanceOf))
|
||||
{
|
||||
if (peq((nsIRDFResource *)target, kRDF_Bag))
|
||||
{
|
||||
*hasAssertion = PR_TRUE;
|
||||
rv = NS_OK;
|
||||
}
|
||||
}
|
||||
NS_IF_RELEASE(fs);
|
||||
}
|
||||
return (rv);
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemDataSource::ArcLabelsIn(nsIRDFNode *node,
|
||||
nsIRDFArcsInCursor ** labels /* out */)
|
||||
{
|
||||
PR_ASSERT(0);
|
||||
return NS_ERROR_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemDataSource::ArcLabelsOut(nsIRDFResource *source,
|
||||
nsIRDFArcsOutCursor **labels /* out */)
|
||||
{
|
||||
nsIRDFFileSystem *fs;
|
||||
nsresult rv = NS_ERROR_RDF_NO_VALUE;
|
||||
|
||||
if (NS_SUCCEEDED(source->QueryInterface(kIRDFFileSystemIID, (void**) &fs)))
|
||||
{
|
||||
nsVoidArray *temp = new nsVoidArray();
|
||||
if (nsnull == temp)
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
|
||||
temp->AppendElement(kNC_Child);
|
||||
temp->AppendElement(kNC_Name);
|
||||
temp->AppendElement(kNC_URL);
|
||||
temp->AppendElement(kNC_Columns);
|
||||
*labels = new FileSystemCursor(source, kNC_Child, temp);
|
||||
if (nsnull != *labels)
|
||||
{
|
||||
NS_ADDREF(*labels);
|
||||
rv = NS_OK;
|
||||
}
|
||||
NS_RELEASE(fs);
|
||||
}
|
||||
return(rv);
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemDataSource::GetAllResources(nsIRDFResourceCursor** aCursor)
|
||||
{
|
||||
NS_NOTYETIMPLEMENTED("sorry!");
|
||||
return NS_ERROR_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemDataSource::AddObserver(nsIRDFObserver *n)
|
||||
{
|
||||
if (nsnull == mObservers)
|
||||
{
|
||||
if ((mObservers = new nsVoidArray()) == nsnull)
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
}
|
||||
mObservers->AppendElement(n);
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemDataSource::RemoveObserver(nsIRDFObserver *n)
|
||||
{
|
||||
if (nsnull == mObservers)
|
||||
return NS_OK;
|
||||
mObservers->RemoveElement(n);
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemDataSource::Flush()
|
||||
{
|
||||
PR_ASSERT(0);
|
||||
return NS_ERROR_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemDataSource::IsCommandEnabled(const char* aCommand,
|
||||
nsIRDFResource* aCommandTarget,
|
||||
PRBool* aResult)
|
||||
{
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemDataSource::DoCommand(const char* aCommand,
|
||||
nsIRDFResource* aCommandTarget)
|
||||
{
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
nsresult
|
||||
NS_NewRDFFileSystemDataSource(nsIRDFDataSource **result)
|
||||
{
|
||||
if (!result)
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
|
||||
// only one file system data source
|
||||
if (nsnull == gFileSystemDataSource)
|
||||
{
|
||||
if ((gFileSystemDataSource = new FileSystemDataSource()) == nsnull)
|
||||
{
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
}
|
||||
}
|
||||
NS_ADDREF(gFileSystemDataSource);
|
||||
*result = gFileSystemDataSource;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
nsresult
|
||||
GetVolumeList(nsVoidArray **array)
|
||||
{
|
||||
nsIRDFFileSystem *vol;
|
||||
nsVoidArray *volumes = new nsVoidArray();
|
||||
|
||||
#if 1
|
||||
#ifdef XP_WIN
|
||||
|
||||
PRInt32 driveType;
|
||||
char drive[32];
|
||||
PRInt32 volNum;
|
||||
char *url;
|
||||
|
||||
for (volNum = 0; volNum < 26; volNum++)
|
||||
{
|
||||
sprintf(drive, "%c:\\", volNum + 'A');
|
||||
driveType = GetDriveType(drive);
|
||||
if (driveType != DRIVE_UNKNOWN && driveType != DRIVE_NO_ROOT_DIR)
|
||||
{
|
||||
if (nsnull != (url = PR_smprintf("file:///%c|/", volNum + 'A')))
|
||||
{
|
||||
gRDFService->GetResource(url, (nsIRDFResource **)&vol);
|
||||
NS_ADDREF(vol);
|
||||
volumes->AppendElement(vol);
|
||||
PR_Free(url);
|
||||
}
|
||||
}
|
||||
}
|
||||
*array = volumes;
|
||||
return NS_OK;
|
||||
#else
|
||||
#endif
|
||||
|
||||
#else
|
||||
gRDFService->GetResource("file:///c|/", (nsIRDFResource **)&vol);
|
||||
volumes->AppendElement(vol);
|
||||
// NS_ADDREF(vol);
|
||||
gRDFService->GetResource("file:///d|/", (nsIRDFResource **)&vol);
|
||||
volumes->AppendElement(vol);
|
||||
// NS_ADDREF(vol);
|
||||
*array = volumes;
|
||||
return NS_OK;
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
FileSystemCursor::FileSystemCursor(nsIRDFResource *source,
|
||||
nsIRDFResource *property,
|
||||
nsVoidArray *array)
|
||||
{
|
||||
mSource = source;
|
||||
mProperty = property;
|
||||
mArray = array;
|
||||
NS_ADDREF(mSource);
|
||||
NS_ADDREF(mProperty);
|
||||
mCount = 0;
|
||||
mTarget = nsnull;
|
||||
mValue = nsnull;
|
||||
}
|
||||
|
||||
|
||||
|
||||
FileSystemCursor::~FileSystemCursor(void)
|
||||
{
|
||||
NS_IF_RELEASE(mSource);
|
||||
NS_IF_RELEASE(mValue);
|
||||
NS_IF_RELEASE(mProperty);
|
||||
NS_IF_RELEASE(mTarget);
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemCursor::Advance(void)
|
||||
{
|
||||
if (!mArray)
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
if (mArray->Count() <= mCount)
|
||||
return NS_ERROR_RDF_CURSOR_EMPTY;
|
||||
NS_IF_RELEASE(mValue);
|
||||
mTarget = mValue = (nsIRDFNode *)mArray->ElementAt(mCount++);
|
||||
NS_ADDREF(mValue);
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemCursor::GetValue(nsIRDFNode **aValue)
|
||||
{
|
||||
if (nsnull == mValue)
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
NS_ADDREF(mValue);
|
||||
*aValue = mValue;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemCursor::GetDataSource(nsIRDFDataSource **aDataSource)
|
||||
{
|
||||
NS_ADDREF(gFileSystemDataSource);
|
||||
*aDataSource = gFileSystemDataSource;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemCursor::GetSubject(nsIRDFResource **aResource)
|
||||
{
|
||||
NS_ADDREF(mSource);
|
||||
*aResource = mSource;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemCursor::GetPredicate(nsIRDFResource **aPredicate)
|
||||
{
|
||||
NS_ADDREF(mProperty);
|
||||
*aPredicate = mProperty;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemCursor::GetObject(nsIRDFNode **aObject)
|
||||
{
|
||||
if (nsnull != mTarget)
|
||||
NS_ADDREF(mTarget);
|
||||
*aObject = mTarget;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemCursor::GetTruthValue(PRBool *aTruthValue)
|
||||
{
|
||||
*aTruthValue = 1;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMPL_ADDREF(FileSystemCursor);
|
||||
NS_IMPL_RELEASE(FileSystemCursor);
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemCursor::QueryInterface(REFNSIID iid, void **result)
|
||||
{
|
||||
if (! result)
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
|
||||
*result = nsnull;
|
||||
if (iid.Equals(kIRDFAssertionCursorIID) ||
|
||||
iid.Equals(kIRDFCursorIID) ||
|
||||
iid.Equals(kIRDFArcsOutCursorIID) ||
|
||||
iid.Equals(kISupportsIID))
|
||||
{
|
||||
*result = NS_STATIC_CAST(nsIRDFAssertionCursor *, this);
|
||||
AddRef();
|
||||
return NS_OK;
|
||||
}
|
||||
return NS_NOINTERFACE;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/********************************** FileSystem **************************************
|
||||
************************************************************************************/
|
||||
|
||||
|
||||
|
||||
FileSystem::FileSystem(const char *uri)
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
mURI = PL_strdup(uri);
|
||||
}
|
||||
|
||||
|
||||
|
||||
FileSystem::~FileSystem(void)
|
||||
{
|
||||
gRDFService->UnCacheResource(this);
|
||||
PL_strfree(mURI);
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMPL_IRDFRESOURCE(FileSystem);
|
||||
NS_IMPL_ADDREF(FileSystem);
|
||||
NS_IMPL_RELEASE(FileSystem);
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystem::QueryInterface(REFNSIID iid, void **result)
|
||||
{
|
||||
if (! result)
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
|
||||
*result = nsnull;
|
||||
if (iid.Equals(kIRDFResourceIID) ||
|
||||
iid.Equals(kIRDFNodeIID) ||
|
||||
iid.Equals(kIRDFFileSystemIID) ||
|
||||
iid.Equals(kISupportsIID))
|
||||
{
|
||||
*result = NS_STATIC_CAST(nsIRDFFileSystem *, this);
|
||||
AddRef();
|
||||
return NS_OK;
|
||||
}
|
||||
return NS_NOINTERFACE;
|
||||
}
|
||||
|
||||
|
||||
|
||||
static PRBool
|
||||
isDirectory(const char *parent, const char *optFile)
|
||||
{
|
||||
PRFileInfo info;
|
||||
PRStatus err;
|
||||
PRBool isDirFlag = PR_FALSE;
|
||||
char *url;
|
||||
|
||||
nsAutoString pathname(parent);
|
||||
if (nsnull != optFile)
|
||||
{
|
||||
pathname += optFile;
|
||||
}
|
||||
url = pathname.ToNewCString();
|
||||
if (nsnull != url)
|
||||
{
|
||||
if ((err = PR_GetFileInfo(url, &info)) == PR_SUCCESS)
|
||||
{
|
||||
if (info.type == PR_FILE_DIRECTORY)
|
||||
{
|
||||
isDirFlag = PR_TRUE;
|
||||
}
|
||||
}
|
||||
}
|
||||
return(isDirFlag);
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystem::GetFolderList(nsIRDFResource *source, nsVoidArray **array /* out */) const
|
||||
{
|
||||
nsAutoString name(mURI);
|
||||
|
||||
*array = nsnull;
|
||||
|
||||
if (name.Find("file:///") == 0)
|
||||
{
|
||||
#ifdef XP_UNIX
|
||||
name.Cut(0, strlen("file://"));
|
||||
#else
|
||||
name.Cut(0, strlen("file:///"));
|
||||
#endif
|
||||
|
||||
#ifdef XP_WIN
|
||||
// on Windows, replace pipe with colon
|
||||
if (name.Length() > 2)
|
||||
{
|
||||
if (name.CharAt(1) == '|')
|
||||
{
|
||||
name.CharAt(1) = ':';
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
PRDir *dir;
|
||||
PRDirEntry *de;
|
||||
PRInt32 n = PR_SKIP_BOTH;
|
||||
nsIRDFFileSystem *file;
|
||||
|
||||
nsVoidArray *nameArray = new nsVoidArray();
|
||||
|
||||
char *dirName = name.ToNewCString();
|
||||
|
||||
#define DEPTH_LIMIT 2
|
||||
|
||||
#ifdef DEPTH_LIMIT
|
||||
char *p;
|
||||
PRInt32 slashCount = 0;
|
||||
|
||||
char *temp = name.ToNewCString();
|
||||
p = strchr(temp, '/');
|
||||
while (nsnull != p)
|
||||
{
|
||||
++ slashCount;
|
||||
++p;
|
||||
p = strchr(p, '/');
|
||||
}
|
||||
delete temp;
|
||||
if (slashCount > DEPTH_LIMIT)
|
||||
{
|
||||
*array = nsnull;
|
||||
delete dirName;
|
||||
delete nameArray;
|
||||
return NS_OK;
|
||||
}
|
||||
#endif
|
||||
|
||||
if (nsnull != dirName)
|
||||
{
|
||||
if (nsnull != (dir = PR_OpenDir(dirName)))
|
||||
{
|
||||
while (nsnull != (de = PR_ReadDir(dir, (PRDirFlags)(n++))))
|
||||
{
|
||||
nsAutoString pathname(mURI);
|
||||
pathname += de->name;
|
||||
|
||||
if (PR_TRUE == isDirectory(dirName, de->name))
|
||||
{
|
||||
pathname += "/";
|
||||
}
|
||||
char *filename = pathname.ToNewCString();
|
||||
if (nsnull != filename)
|
||||
{
|
||||
gRDFService->GetResource(filename, (nsIRDFResource **)&file);
|
||||
delete filename;
|
||||
nameArray->AppendElement(file);
|
||||
}
|
||||
}
|
||||
PR_CloseDir(dir);
|
||||
}
|
||||
delete dirName;
|
||||
}
|
||||
|
||||
*array = nameArray;
|
||||
}
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystem::GetName(nsVoidArray **array) const
|
||||
{
|
||||
nsString *basename = nsnull;
|
||||
nsAutoString name(mURI);
|
||||
|
||||
PRInt32 len = name.Length();
|
||||
if (len > 0)
|
||||
{
|
||||
if (name.CharAt(len-1) == '/')
|
||||
{
|
||||
name.SetLength(--len);
|
||||
}
|
||||
}
|
||||
|
||||
PRInt32 slashIndex = name.RFind("/");
|
||||
if (slashIndex > 0)
|
||||
{
|
||||
basename = new nsString;
|
||||
name.Mid(*basename, slashIndex+1, len-slashIndex);
|
||||
|
||||
#ifdef XP_WIN
|
||||
// on Windows, replace pipe with colon and uppercase drive letter
|
||||
if (basename->Length() == 2)
|
||||
{
|
||||
if (basename->CharAt(1) == '|')
|
||||
{
|
||||
basename->CharAt(1) = ':';
|
||||
basename->ToUpperCase();
|
||||
}
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
*array = nsnull;
|
||||
if (nsnull != basename)
|
||||
{
|
||||
nsIRDFLiteral *literal;
|
||||
gRDFService->GetLiteral(*basename, &literal);
|
||||
// NS_ADDREF(literal);
|
||||
delete basename;
|
||||
nsVoidArray *nameArray = new nsVoidArray();
|
||||
nameArray->AppendElement(literal);
|
||||
*array = nameArray;
|
||||
}
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystem::GetURL(nsVoidArray **array) const
|
||||
{
|
||||
nsVoidArray *urlArray = new nsVoidArray();
|
||||
*array = urlArray;
|
||||
if (nsnull != urlArray)
|
||||
{
|
||||
nsIRDFLiteral *literal;
|
||||
|
||||
nsAutoString url(mURI);
|
||||
|
||||
gRDFService->GetLiteral(url, &literal);
|
||||
NS_ADDREF(literal);
|
||||
urlArray->AppendElement(literal);
|
||||
}
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
class FileSystemResourceFactoryImpl : public nsIRDFResourceFactory
|
||||
{
|
||||
public:
|
||||
FileSystemResourceFactoryImpl(void);
|
||||
virtual ~FileSystemResourceFactoryImpl(void);
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
NS_IMETHOD CreateResource(const char* aURI, nsIRDFResource** aResult);
|
||||
};
|
||||
|
||||
|
||||
|
||||
FileSystemResourceFactoryImpl::FileSystemResourceFactoryImpl(void)
|
||||
{
|
||||
NS_INIT_REFCNT();
|
||||
}
|
||||
|
||||
|
||||
|
||||
FileSystemResourceFactoryImpl::~FileSystemResourceFactoryImpl(void)
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
|
||||
NS_IMPL_ISUPPORTS(FileSystemResourceFactoryImpl, kIRDFResourceFactoryIID);
|
||||
|
||||
|
||||
|
||||
NS_IMETHODIMP
|
||||
FileSystemResourceFactoryImpl::CreateResource(const char* aURI, nsIRDFResource** aResult)
|
||||
{
|
||||
if (! aResult)
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
FileSystem *fs = new FileSystem(aURI);
|
||||
if (!fs)
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
NS_ADDREF(fs);
|
||||
*aResult = fs;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
nsresult
|
||||
NS_NewRDFFileSystemResourceFactory(nsIRDFResourceFactory** aResult)
|
||||
{
|
||||
if (! aResult)
|
||||
return NS_ERROR_NULL_POINTER;
|
||||
FileSystemResourceFactoryImpl *factory = new FileSystemResourceFactoryImpl();
|
||||
if (! factory)
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
NS_ADDREF(factory);
|
||||
*aResult = factory;
|
||||
return NS_OK;
|
||||
}
|
||||
|
||||
192
rdf/datasource/src/nsFileSystemDataSource.h
Normal file
192
rdf/datasource/src/nsFileSystemDataSource.h
Normal file
@ -0,0 +1,192 @@
|
||||
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
||||
*
|
||||
* The contents of this file are subject to the Netscape Public License
|
||||
* Version 1.0 (the "NPL"); you may not use this file except in
|
||||
* compliance with the NPL. You may obtain a copy of the NPL at
|
||||
* http://www.mozilla.org/NPL/
|
||||
*
|
||||
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
||||
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
||||
* for the specific language governing rights and limitations under the
|
||||
* NPL.
|
||||
*
|
||||
* The Initial Developer of this code under the NPL is Netscape
|
||||
* Communications Corporation. Portions created by Netscape are
|
||||
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
||||
* Reserved.
|
||||
*/
|
||||
|
||||
#ifndef nsFileSystemDataSource_h__
|
||||
#define nsFileSystemDataSource_h__
|
||||
|
||||
|
||||
////////////////////////////////////////////////////////////////////////
|
||||
// NS_DECL_IRDFRESOURCE, NS_IMPL_IRDFRESOURCE
|
||||
//
|
||||
// Convenience macros for implementing the RDF resource interface.
|
||||
//
|
||||
// XXX It might make sense to move these macros to nsIRDFResource.h?
|
||||
|
||||
#define NS_DECL_IRDFRESOURCE \
|
||||
NS_IMETHOD EqualsNode(nsIRDFNode* node, PRBool* result) const;\
|
||||
NS_IMETHOD GetValue(const char* *uri) const;\
|
||||
NS_IMETHOD EqualsResource(const nsIRDFResource* resource, PRBool* result) const;\
|
||||
NS_IMETHOD EqualsString(const char* uri, PRBool* result) const;
|
||||
|
||||
|
||||
#define NS_IMPL_IRDFRESOURCE(__class) \
|
||||
NS_IMETHODIMP \
|
||||
__class::EqualsNode(nsIRDFNode* node, PRBool* result) const {\
|
||||
nsresult rv;\
|
||||
nsIRDFResource* resource;\
|
||||
if (NS_SUCCEEDED(node->QueryInterface(kIRDFResourceIID, (void**) &resource))) {\
|
||||
rv = EqualsResource(resource, result);\
|
||||
NS_RELEASE(resource);\
|
||||
}\
|
||||
else {\
|
||||
*result = PR_FALSE;\
|
||||
rv = NS_OK;\
|
||||
}\
|
||||
return rv;\
|
||||
}\
|
||||
NS_IMETHODIMP \
|
||||
__class::GetValue(const char* *uri) const{\
|
||||
if (!uri)\
|
||||
return NS_ERROR_NULL_POINTER;\
|
||||
*uri = mURI;\
|
||||
return NS_OK;\
|
||||
}\
|
||||
NS_IMETHODIMP \
|
||||
__class::EqualsResource(const nsIRDFResource* resource, PRBool* result) const {\
|
||||
if (!resource || !result) return NS_ERROR_NULL_POINTER;\
|
||||
*result = (resource == (nsIRDFResource*) this);\
|
||||
return NS_OK;\
|
||||
}\
|
||||
NS_IMETHODIMP \
|
||||
__class::EqualsString(const char* uri, PRBool* result) const {\
|
||||
if (!uri || !result) return NS_ERROR_NULL_POINTER;\
|
||||
*result = (PL_strcmp(uri, mURI) == 0);\
|
||||
return NS_OK;\
|
||||
}
|
||||
|
||||
|
||||
|
||||
class FileSystemDataSource : public nsIRDFFileSystemDataSource
|
||||
{
|
||||
private:
|
||||
char *mURI;
|
||||
nsVoidArray *mObservers;
|
||||
|
||||
static nsIRDFResource *kNC_FileSystemRoot;
|
||||
static nsIRDFResource *kNC_Child;
|
||||
static nsIRDFResource *kNC_Name;
|
||||
static nsIRDFResource *kNC_URL;
|
||||
static nsIRDFResource *kNC_Columns;
|
||||
|
||||
static nsIRDFResource *kRDF_InstanceOf;
|
||||
static nsIRDFResource *kRDF_Bag;
|
||||
|
||||
public:
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
FileSystemDataSource(void);
|
||||
virtual ~FileSystemDataSource(void);
|
||||
|
||||
// nsIRDFDataSource methods
|
||||
|
||||
NS_IMETHOD Init(const char *uri);
|
||||
NS_IMETHOD GetURI(const char **uri) const;
|
||||
NS_IMETHOD GetSource(nsIRDFResource *property,
|
||||
nsIRDFNode *target,
|
||||
PRBool tv,
|
||||
nsIRDFResource **source /* out */);
|
||||
NS_IMETHOD GetSources(nsIRDFResource *property,
|
||||
nsIRDFNode *target,
|
||||
PRBool tv,
|
||||
nsIRDFAssertionCursor **sources /* out */);
|
||||
NS_IMETHOD GetTarget(nsIRDFResource *source,
|
||||
nsIRDFResource *property,
|
||||
PRBool tv,
|
||||
nsIRDFNode **target /* out */);
|
||||
NS_IMETHOD GetTargets(nsIRDFResource *source,
|
||||
nsIRDFResource *property,
|
||||
PRBool tv,
|
||||
nsIRDFAssertionCursor **targets /* out */);
|
||||
NS_IMETHOD Assert(nsIRDFResource *source,
|
||||
nsIRDFResource *property,
|
||||
nsIRDFNode *target,
|
||||
PRBool tv);
|
||||
NS_IMETHOD Unassert(nsIRDFResource *source,
|
||||
nsIRDFResource *property,
|
||||
nsIRDFNode *target);
|
||||
NS_IMETHOD HasAssertion(nsIRDFResource *source,
|
||||
nsIRDFResource *property,
|
||||
nsIRDFNode *target,
|
||||
PRBool tv,
|
||||
PRBool *hasAssertion /* out */);
|
||||
NS_IMETHOD ArcLabelsIn(nsIRDFNode *node,
|
||||
nsIRDFArcsInCursor **labels /* out */);
|
||||
NS_IMETHOD ArcLabelsOut(nsIRDFResource *source,
|
||||
nsIRDFArcsOutCursor **labels /* out */);
|
||||
NS_IMETHOD GetAllResources(nsIRDFResourceCursor** aCursor);
|
||||
NS_IMETHOD AddObserver(nsIRDFObserver *n);
|
||||
NS_IMETHOD RemoveObserver(nsIRDFObserver *n);
|
||||
NS_IMETHOD Flush();
|
||||
NS_IMETHOD IsCommandEnabled(const char *aCommand,
|
||||
nsIRDFResource *aCommandTarget,
|
||||
PRBool *aResult);
|
||||
NS_IMETHOD DoCommand(const char *aCommand,
|
||||
nsIRDFResource *aCommandTarget);
|
||||
};
|
||||
|
||||
|
||||
|
||||
class FileSystem : public nsIRDFFileSystem
|
||||
{
|
||||
private:
|
||||
char *mURI;
|
||||
|
||||
public:
|
||||
FileSystem(const char *uri);
|
||||
virtual ~FileSystem(void);
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
NS_DECL_IRDFRESOURCE
|
||||
|
||||
NS_IMETHOD GetFolderList(nsIRDFResource *source,
|
||||
nsVoidArray **array /* out */) const;
|
||||
NS_IMETHOD GetName(nsVoidArray **array /* out */) const;
|
||||
NS_IMETHOD GetURL(nsVoidArray **array /* out */) const;
|
||||
};
|
||||
|
||||
|
||||
|
||||
class FileSystemCursor : public nsIRDFAssertionCursor, public nsIRDFArcsOutCursor
|
||||
{
|
||||
private:
|
||||
nsIRDFNode *mValue;
|
||||
nsIRDFResource *mSource;
|
||||
nsIRDFResource *mProperty;
|
||||
nsIRDFNode *mTarget;
|
||||
int mCount;
|
||||
nsVoidArray *mArray;
|
||||
|
||||
public:
|
||||
FileSystemCursor(nsIRDFResource *source, nsIRDFResource *property, nsVoidArray *array);
|
||||
virtual ~FileSystemCursor(void);
|
||||
|
||||
NS_DECL_ISUPPORTS
|
||||
|
||||
NS_IMETHOD Advance(void);
|
||||
NS_IMETHOD GetValue(nsIRDFNode **aValue);
|
||||
NS_IMETHOD GetDataSource(nsIRDFDataSource **aDataSource);
|
||||
NS_IMETHOD GetSubject(nsIRDFResource **aResource);
|
||||
NS_IMETHOD GetPredicate(nsIRDFResource **aPredicate);
|
||||
NS_IMETHOD GetObject(nsIRDFNode **aObject);
|
||||
NS_IMETHOD GetTruthValue(PRBool *aTruthValue);
|
||||
};
|
||||
|
||||
|
||||
|
||||
#endif // nsFileSystemDataSource_h__
|
||||
Loading…
x
Reference in New Issue
Block a user