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/* $Id: RTCRestJsonPrimaryCursor.cpp $ */
/** @file
* IPRT - C++ REST, RTCRestJsonPrimaryCursor implementation.
*/
/*
* Copyright (C) 2018-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP RTLOGGROUP_REST
#include <iprt/cpp/restbase.h>
#include <iprt/errcore.h>
#include <iprt/string.h>
char *RTCRestJsonPrimaryCursor::getPath(RTCRestJsonCursor const &a_rCursor, char *pszDst, size_t cbDst) const RT_NOEXCEPT
{
AssertReturn(cbDst > 0, NULL);
/*
* To avoid using recursion, we need to first do a pass to figure sizes
* and depth. To keep things simple, with the exception of the top name
* we only copy out full names.
*/
/* Special case: Insufficient space for the top name. */
size_t const cchTopName = strlen(a_rCursor.m_pszName);
if (cchTopName >= cbDst)
{
memcpy(pszDst, a_rCursor.m_pszName, cbDst - 1);
pszDst[cbDst - 1] = '\0';
}
else
{
/* Determin how deep we should go and the resulting length. */
size_t iMaxDepth = 0;
size_t cchTotal = cchTopName;
for (RTCRestJsonCursor const *pCur = a_rCursor.m_pParent; pCur; pCur = pCur->m_pParent)
{
size_t const cchName = strlen(pCur->m_pszName);
size_t cchNewTotal = cchName + 1 + cchTotal;
if (cchNewTotal < cbDst)
cchTotal = cchNewTotal;
else
break;
iMaxDepth++;
}
/* Produce the string, in reverse. */
char *psz = &pszDst[cchTotal];
*psz = '\0';
psz -= cchTopName;
memcpy(psz, a_rCursor.m_pszName, cchTopName);
for (RTCRestJsonCursor const *pCur = a_rCursor.m_pParent; pCur && iMaxDepth > 0; pCur = pCur->m_pParent)
{
psz -= 1;
*psz = '.';
size_t const cchName = strlen(pCur->m_pszName);
psz -= cchName;
memcpy(psz, pCur->m_pszName, cchName);
iMaxDepth--;
}
Assert(psz == pszDst);
}
return pszDst;
}
int RTCRestJsonPrimaryCursor::addError(RTCRestJsonCursor const &a_rCursor, int a_rc, const char *a_pszFormat, ...) RT_NOEXCEPT
{
va_list va;
va_start(va, a_pszFormat);
char szPath[128];
a_rc = RTErrInfoAddF(m_pErrInfo, a_rc, "%s: %N\n", getPath(a_rCursor, szPath, sizeof(szPath)), a_pszFormat, &va);
va_end(va);
return a_rc;
}
int RTCRestJsonPrimaryCursor::unknownField(RTCRestJsonCursor const &a_rCursor) RT_NOEXCEPT
{
char szPath[128];
return RTErrInfoAddF(m_pErrInfo, VWRN_NOT_FOUND, "%s: unknown field (type %s)\n",
getPath(a_rCursor, szPath, sizeof(szPath)),
RTJsonValueTypeName(RTJsonValueGetType(a_rCursor.m_hValue)));
}
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