115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
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*
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* Copyright (C) 2014 Colin Walters <walters@verbum.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2 of the licence or (at
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* your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "rpmostree-json-parsing.h"
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#include <string.h>
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#include <glib-unix.h>
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gboolean
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_rpmostree_jsonutil_object_get_optional_string_member (JsonObject *object,
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const char *member_name,
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const char **out_value,
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GError **error)
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{
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gboolean ret = FALSE;
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JsonNode *node = json_object_get_member (object, member_name);
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if (node != NULL)
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{
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*out_value = json_node_get_string (node);
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if (!*out_value)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"Member '%s' is not a string", member_name);
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goto out;
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}
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}
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else
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*out_value = NULL;
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ret = TRUE;
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out:
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return ret;
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}
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const char *
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_rpmostree_jsonutil_object_require_string_member (JsonObject *object,
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const char *member_name,
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GError **error)
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{
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const char *ret;
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if (!_rpmostree_jsonutil_object_get_optional_string_member (object, member_name, &ret, error))
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return NULL;
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if (!ret)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"Member '%s' not found", member_name);
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return NULL;
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}
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return ret;
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}
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const char *
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_rpmostree_jsonutil_array_require_string_element (JsonArray *array,
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guint i,
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GError **error)
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{
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const char *ret = json_array_get_string_element (array, i);
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if (!ret)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"Element at index %u is not a string", i);
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return NULL;
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}
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return ret;
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}
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gboolean
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_rpmostree_jsonutil_append_string_array_to (JsonObject *object,
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const char *member_name,
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GPtrArray *array,
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GCancellable *cancellable,
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GError **error)
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{
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JsonArray *jarray = json_object_get_array_member (object, member_name);
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guint i, len;
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if (!jarray)
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{
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g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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"No member '%s' found", member_name);
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return FALSE;
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}
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len = json_array_get_length (jarray);
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for (i = 0; i < len; i++)
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{
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const char *v = _rpmostree_jsonutil_array_require_string_element (jarray, i, error);
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if (!v)
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return FALSE;
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g_ptr_array_add (array, g_strdup (v));
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}
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return TRUE;
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}
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