The Tor Browser / file comparison
comparison: rdf/tests/rdfcat/rdfcat.cpp
rdf/tests/rdfcat/rdfcat.cpp
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:4597a85506ab |
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 /* | |
| 7 | |
| 8 A simple test program that reads in RDF/XML into an in-memory data | |
| 9 source, then uses the RDF/XML serialization API to write an | |
| 10 equivalent (but not identical) RDF/XML file back to stdout. | |
| 11 | |
| 12 The program takes a single parameter: the URL from which to read. | |
| 13 | |
| 14 */ | |
| 15 | |
| 16 #include <stdio.h> | |
| 17 #include "nsXPCOM.h" | |
| 18 #include "nsCOMPtr.h" | |
| 19 #include "nsIComponentManager.h" | |
| 20 #include "nsComponentManagerUtils.h" | |
| 21 #include "nsServiceManagerUtils.h" | |
| 22 #include "nsIIOService.h" | |
| 23 #include "nsIInputStream.h" | |
| 24 #include "nsIOutputStream.h" | |
| 25 #include "nsIRDFCompositeDataSource.h" | |
| 26 #include "nsIRDFNode.h" | |
| 27 #include "nsIRDFRemoteDataSource.h" | |
| 28 #include "nsIRDFService.h" | |
| 29 #include "nsIRDFXMLSource.h" | |
| 30 #include "nsIServiceManager.h" | |
| 31 #include "nsIStreamListener.h" | |
| 32 #include "nsIURL.h" | |
| 33 #include "nsRDFCID.h" | |
| 34 #include "nsThreadUtils.h" | |
| 35 #include "plstr.h" | |
| 36 #include "prio.h" | |
| 37 #include "prthread.h" | |
| 38 | |
| 39 //////////////////////////////////////////////////////////////////////// | |
| 40 // CIDs | |
| 41 | |
| 42 // rdf | |
| 43 static NS_DEFINE_CID(kRDFXMLDataSourceCID, NS_RDFXMLDATASOURCE_CID); | |
| 44 | |
| 45 //////////////////////////////////////////////////////////////////////// | |
| 46 // Blatantly stolen from netwerk/test/ | |
| 47 #define RETURN_IF_FAILED(rv, step) \ | |
| 48 PR_BEGIN_MACRO \ | |
| 49 if (NS_FAILED(rv)) { \ | |
| 50 printf(">>> %s failed: rv=%x\n", step, static_cast<uint32_t>(rv)); \ | |
| 51 return 1;\ | |
| 52 } \ | |
| 53 PR_END_MACRO | |
| 54 | |
| 55 //////////////////////////////////////////////////////////////////////// | |
| 56 | |
| 57 class ConsoleOutputStreamImpl : public nsIOutputStream | |
| 58 { | |
| 59 public: | |
| 60 ConsoleOutputStreamImpl(void) {} | |
| 61 virtual ~ConsoleOutputStreamImpl(void) {} | |
| 62 | |
| 63 // nsISupports interface | |
| 64 NS_DECL_ISUPPORTS | |
| 65 | |
| 66 // nsIOutputStream interface | |
| 67 NS_IMETHOD Close(void) { | |
| 68 return NS_OK; | |
| 69 } | |
| 70 | |
| 71 NS_IMETHOD Write(const char* aBuf, uint32_t aCount, uint32_t *aWriteCount) { | |
| 72 PR_Write(PR_GetSpecialFD(PR_StandardOutput), aBuf, aCount); | |
| 73 *aWriteCount = aCount; | |
| 74 return NS_OK; | |
| 75 } | |
| 76 | |
| 77 NS_IMETHOD | |
| 78 WriteFrom(nsIInputStream *inStr, uint32_t count, uint32_t *_retval) { | |
| 79 NS_NOTREACHED("WriteFrom"); | |
| 80 return NS_ERROR_NOT_IMPLEMENTED; | |
| 81 } | |
| 82 | |
| 83 NS_IMETHOD | |
| 84 WriteSegments(nsReadSegmentFun reader, void * closure, uint32_t count, uint32_t *_retval) { | |
| 85 NS_NOTREACHED("WriteSegments"); | |
| 86 return NS_ERROR_NOT_IMPLEMENTED; | |
| 87 } | |
| 88 | |
| 89 NS_IMETHOD | |
| 90 IsNonBlocking(bool *aNonBlocking) { | |
| 91 NS_NOTREACHED("IsNonBlocking"); | |
| 92 return NS_ERROR_NOT_IMPLEMENTED; | |
| 93 } | |
| 94 | |
| 95 NS_IMETHOD Flush(void) { | |
| 96 PR_Sync(PR_GetSpecialFD(PR_StandardOutput)); | |
| 97 return NS_OK; | |
| 98 } | |
| 99 }; | |
| 100 | |
| 101 NS_IMPL_ISUPPORTS(ConsoleOutputStreamImpl, nsIOutputStream) | |
| 102 | |
| 103 //////////////////////////////////////////////////////////////////////// | |
| 104 | |
| 105 int | |
| 106 main(int argc, char** argv) | |
| 107 { | |
| 108 nsresult rv; | |
| 109 | |
| 110 if (argc < 2) { | |
| 111 fprintf(stderr, "usage: %s <url>\n", argv[0]); | |
| 112 return 1; | |
| 113 } | |
| 114 | |
| 115 NS_InitXPCOM2(nullptr, nullptr, nullptr); | |
| 116 | |
| 117 // Create a stream data source and initialize it on argv[1], which | |
| 118 // is hopefully a "file:" URL. | |
| 119 nsCOMPtr<nsIRDFDataSource> ds = do_CreateInstance(kRDFXMLDataSourceCID, | |
| 120 &rv); | |
| 121 RETURN_IF_FAILED(rv, "RDF/XML datasource creation"); | |
| 122 | |
| 123 nsCOMPtr<nsIRDFRemoteDataSource> remote = do_QueryInterface(ds, &rv); | |
| 124 RETURN_IF_FAILED(rv, "QI to nsIRDFRemoteDataSource"); | |
| 125 | |
| 126 rv = remote->Init(argv[1]); | |
| 127 RETURN_IF_FAILED(rv, "datasource initialization"); | |
| 128 | |
| 129 // Okay, this should load the XML file... | |
| 130 rv = remote->Refresh(false); | |
| 131 RETURN_IF_FAILED(rv, "datasource refresh"); | |
| 132 | |
| 133 // Pump events until the load is finished | |
| 134 nsCOMPtr<nsIThread> thread = do_GetCurrentThread(); | |
| 135 bool done = false; | |
| 136 while (!done) { | |
| 137 NS_ENSURE_TRUE(NS_ProcessNextEvent(thread), 1); | |
| 138 remote->GetLoaded(&done); | |
| 139 } | |
| 140 | |
| 141 // And this should write it back out. The do_QI() on the pointer | |
| 142 // is a hack to make sure that the new object gets AddRef()-ed. | |
| 143 nsCOMPtr<nsIOutputStream> out = | |
| 144 do_QueryInterface(new ConsoleOutputStreamImpl, &rv); | |
| 145 RETURN_IF_FAILED(rv, "creation of console output stream"); | |
| 146 | |
| 147 nsCOMPtr<nsIRDFXMLSource> source = do_QueryInterface(ds); | |
| 148 RETURN_IF_FAILED(rv, "QI to nsIRDFXMLSource"); | |
| 149 | |
| 150 rv = source->Serialize(out); | |
| 151 RETURN_IF_FAILED(rv, "datasoure serialization"); | |
| 152 | |
| 153 return 0; | |
| 154 } |
