VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/rest/RTCRestJsonPrimaryCursor.cpp@ 87203

Last change on this file since 87203 was 82968, checked in by vboxsync, 5 years ago

Copyright year updates by scm.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 4.0 KB
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1/* $Id: RTCRestJsonPrimaryCursor.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
2/** @file
3 * IPRT - C++ REST, RTCRestJsonPrimaryCursor implementation.
4 */
5
6/*
7 * Copyright (C) 2018-2020 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27
28/*********************************************************************************************************************************
29* Header Files *
30*********************************************************************************************************************************/
31#define LOG_GROUP RTLOGGROUP_REST
32#include <iprt/cpp/restbase.h>
33
34#include <iprt/errcore.h>
35#include <iprt/string.h>
36
37
38char *RTCRestJsonPrimaryCursor::getPath(RTCRestJsonCursor const &a_rCursor, char *pszDst, size_t cbDst) const RT_NOEXCEPT
39{
40 AssertReturn(cbDst > 0, NULL);
41
42 /*
43 * To avoid using recursion, we need to first do a pass to figure sizes
44 * and depth. To keep things simple, with the exception of the top name
45 * we only copy out full names.
46 */
47 /* Special case: Insufficient space for the top name. */
48 size_t const cchTopName = strlen(a_rCursor.m_pszName);
49 if (cchTopName >= cbDst)
50 {
51 memcpy(pszDst, a_rCursor.m_pszName, cbDst - 1);
52 pszDst[cbDst - 1] = '\0';
53 }
54 else
55 {
56 /* Determin how deep we should go and the resulting length. */
57 size_t iMaxDepth = 0;
58 size_t cchTotal = cchTopName;
59 for (RTCRestJsonCursor const *pCur = a_rCursor.m_pParent; pCur; pCur = pCur->m_pParent)
60 {
61 size_t const cchName = strlen(pCur->m_pszName);
62 size_t cchNewTotal = cchName + 1 + cchTotal;
63 if (cchNewTotal < cbDst)
64 cchTotal = cchNewTotal;
65 else
66 break;
67 iMaxDepth++;
68 }
69
70 /* Produce the string, in reverse. */
71 char *psz = &pszDst[cchTotal];
72 *psz = '\0';
73 psz -= cchTopName;
74 memcpy(psz, a_rCursor.m_pszName, cchTopName);
75 for (RTCRestJsonCursor const *pCur = a_rCursor.m_pParent; pCur && iMaxDepth > 0; pCur = pCur->m_pParent)
76 {
77 psz -= 1;
78 *psz = '.';
79
80 size_t const cchName = strlen(pCur->m_pszName);
81 psz -= cchName;
82 memcpy(psz, pCur->m_pszName, cchName);
83
84 iMaxDepth--;
85 }
86 Assert(psz == pszDst);
87 }
88 return pszDst;
89}
90
91
92int RTCRestJsonPrimaryCursor::addError(RTCRestJsonCursor const &a_rCursor, int a_rc, const char *a_pszFormat, ...) RT_NOEXCEPT
93{
94 va_list va;
95 va_start(va, a_pszFormat);
96 char szPath[128];
97 a_rc = RTErrInfoAddF(m_pErrInfo, a_rc, "%s: %N\n", getPath(a_rCursor, szPath, sizeof(szPath)), a_pszFormat, &va);
98 va_end(va);
99 return a_rc;
100}
101
102
103int RTCRestJsonPrimaryCursor::unknownField(RTCRestJsonCursor const &a_rCursor) RT_NOEXCEPT
104{
105 char szPath[128];
106 return RTErrInfoAddF(m_pErrInfo, VWRN_NOT_FOUND, "%s: unknown field (type %s)\n",
107 getPath(a_rCursor, szPath, sizeof(szPath)),
108 RTJsonValueTypeName(RTJsonValueGetType(a_rCursor.m_hValue)));
109}
110
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