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rdf/tests/rdfcat/rdfcat.cpp@6474c204b198 (annotated)

rdf/tests/rdfcat/rdfcat.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

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

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