1 files changed, 110 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/rest/RTCRestJsonPrimaryCursor.cpp b/src/VBox/Runtime/common/rest/RTCRestJsonPrimaryCursor.cpp
new file mode 100644
index 00000000..21f67296
--- /dev/null
+++ b/src/VBox/Runtime/common/rest/RTCRestJsonPrimaryCursor.cpp
@@ -0,0 +1,110 @@
+/* $Id: RTCRestJsonPrimaryCursor.cpp $ */
+/** @file
+ * IPRT - C++ REST, RTCRestJsonPrimaryCursor implementation.
+ */
+
+/*
+ * Copyright (C) 2018-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE 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.
+ */
+
+
+/*********************************************************************************************************************************
+*   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)));
+}
+