--- /dev/null
+/*
+ * Copyright (c) 2011, JANET(UK)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of JANET(UK) nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * JSONObject utilities.
+ */
+
+#include "util_json.h"
+
+#include <typeinfo>
+#include <string>
+#include <sstream>
+#include <exception>
+#include <new>
+
+#define JSON_INIT(obj) do { \
+ if ((obj) == NULL) \
+ throw std::bad_alloc(); \
+ m_obj = (obj); \
+ } while (0)
+
+#define JSON_CHECK_CONTAINER() do { \
+ if (!json_is_object(m_obj) && !json_is_array(m_obj)) { \
+ std::string s("JSONObject is not a container"); \
+ throw JSONException(m_obj); \
+ } \
+ } while (0)
+
+#define JSON_CHECK_OBJECT() do { \
+ if (!json_is_object(m_obj)) { \
+ std::string s("JSONObject is not a dictionary"); \
+ throw JSONException(m_obj, JSON_OBJECT); \
+ } \
+ } while (0)
+
+#define JSON_CHECK_ARRAY() do { \
+ if (!json_is_array(m_obj)) { \
+ throw JSONException(m_obj, JSON_ARRAY); \
+ } \
+ } while (0)
+
+#define JSON_CHECK(s) do { \
+ if ((s) != 0) \
+ throw JSONException(); \
+ } while (0)
+
+JSONObject
+JSONObject::load(const char *input, size_t flags, json_error_t *error)
+{
+ json_t *obj;
+
+ obj = json_loads(input, flags, error);
+
+ return JSONObject(obj, false);
+}
+
+JSONObject
+JSONObject::load(FILE *fp, size_t flags, json_error_t *error)
+{
+ json_t *obj;
+
+ obj = json_loadf(fp, flags, error);
+
+ return JSONObject(obj, false);
+}
+
+char *
+JSONObject::dump(size_t flags) const
+{
+ char *s = json_dumps(m_obj, flags);
+
+ if (s == NULL)
+ throw std::bad_alloc();
+
+ return s;
+}
+
+void
+JSONObject::dump(FILE *fp, size_t flags) const
+{
+ int r = json_dumpf(m_obj, fp, flags);
+
+ if (r != 0)
+ throw std::bad_alloc();
+}
+
+size_t
+JSONObject::size(void) const
+{
+ if (json_is_object(m_obj))
+ return json_object_size(m_obj);
+ else if (json_is_array(m_obj))
+ return json_array_size(m_obj);
+ else
+ return 0;
+}
+
+JSONObject::JSONObject(json_t *obj, bool retain)
+{
+ if (retain)
+ json_incref(obj);
+ JSON_INIT(obj);
+}
+
+JSONObject::JSONObject(const char *value)
+{
+ json_t *obj = json_string(value);
+
+ JSON_INIT(obj);
+}
+
+JSONObject::JSONObject(json_int_t value)
+{
+ json_t *obj = json_integer(value);
+
+ JSON_INIT(obj);
+}
+
+JSONObject::JSONObject(double value)
+{
+ json_t *obj = json_real(value);
+
+ JSON_INIT(obj);
+}
+
+JSONObject::JSONObject(bool value)
+{
+ json_t *obj = value ? json_true() : json_false();
+
+ JSON_INIT(obj);
+}
+
+JSONObject::JSONObject(void)
+{
+ json_t *obj = json_object();
+
+ JSON_INIT(obj);
+}
+
+JSONObject
+JSONObject::object(void)
+{
+ return JSONObject();
+}
+
+JSONObject
+JSONObject::null(void)
+{
+ return JSONObject(json_null(), false);
+}
+
+JSONObject
+JSONObject::array(void)
+{
+ return JSONObject(json_array(), false);
+}
+
+void
+JSONObject::set(const char *key, JSONObject &value)
+{
+ JSON_CHECK_OBJECT();
+ JSON_CHECK(json_object_set_new(m_obj, key, value.get()));
+}
+
+void
+JSONObject::set(const char *key, const char *value)
+{
+ JSONObject jobj(value);
+ set(key, jobj);
+}
+
+void
+JSONObject::set(const char *key, json_int_t value)
+{
+ JSONObject jobj(value);
+ set(key, jobj);
+}
+
+void
+JSONObject::del(const char *key)
+{
+ json_object_del(m_obj, key);
+}
+
+JSONObject
+JSONObject::get(const char *key) const
+{
+ json_t *obj;
+
+ obj = json_object_get(m_obj, key);
+ if (obj == NULL)
+ return JSONObject::null();
+
+ return JSONObject(obj, true);
+}
+
+JSONObject
+JSONObject::get(size_t index) const
+{
+ json_t *obj;
+
+ obj = json_array_get(m_obj, index);
+ if (obj == NULL)
+ return JSONObject::null();
+
+ return JSONObject(obj, true);
+}
+
+void
+JSONObject::update(JSONObject &value)
+{
+ JSON_CHECK_OBJECT();
+ json_t *other = value.get();
+ JSON_CHECK(json_object_update(m_obj, other));
+ json_decref(other);
+}
+
+JSONObject
+JSONObject::operator[](size_t index) const
+{
+ return get(index);
+}
+
+JSONObject
+JSONObject::operator[](const char *key) const
+{
+ return get(key);
+}
+
+void
+JSONObject::append(JSONObject &value)
+{
+ JSON_CHECK_ARRAY();
+ JSON_CHECK(json_array_append_new(m_obj, value.get()));
+}
+
+void
+JSONObject::insert(size_t index, JSONObject &value)
+{
+ JSON_CHECK_ARRAY();
+ JSON_CHECK(json_array_insert_new(m_obj, index, value.get()));
+}
+
+void
+JSONObject::remove(size_t index)
+{
+ JSON_CHECK_ARRAY();
+ JSON_CHECK(json_array_remove(m_obj, index));
+}
+
+void
+JSONObject::clear(void)
+{
+ JSON_CHECK_CONTAINER();
+
+ if (json_is_object(m_obj)) {
+ JSON_CHECK(json_object_clear(m_obj));
+ } else if (json_is_array(m_obj)) {
+ JSON_CHECK(json_array_clear(m_obj));
+ }
+}
+
+void
+JSONObject::extend(JSONObject &value)
+{
+ JSON_CHECK_ARRAY();
+ json_t *other = value.get();
+ JSON_CHECK(json_array_extend(m_obj, other));
+ json_decref(other);
+}
+
+const char *
+JSONObject::string(void) const
+{
+ return json_string_value(m_obj);
+}
+
+json_int_t
+JSONObject::integer(void) const
+{
+ return json_integer_value(m_obj);
+}
+
+double
+JSONObject::real(void) const
+{
+ return json_real_value(m_obj);
+}
+
+double
+JSONObject::number(void) const
+{
+ return json_number_value(m_obj);
+}
+
+bool JSONObject::isObject(void) const
+{
+ return json_is_object(m_obj);
+}
+
+bool JSONObject::isArray(void) const
+{
+ return json_is_array(m_obj);
+}
+
+bool JSONObject::isString(void) const
+{
+ return json_is_string(m_obj);
+}
+
+bool JSONObject::isInteger(void) const
+{
+ return json_is_integer(m_obj);
+}
+
+bool JSONObject::isNumber(void) const
+{
+ return json_is_number(m_obj);
+}
+
+bool JSONObject::isBoolean(void) const
+{
+ return json_is_boolean(m_obj);
+}
+
+bool JSONObject::isNull(void) const
+{
+ return json_is_null(m_obj);
+}
+
+JSONIterator::JSONIterator(const JSONObject &obj)
+{
+ m_obj = obj.get();
+ m_iter = json_object_iter(m_obj);
+}
+
+JSONIterator::~JSONIterator(void)
+{
+ json_decref(m_obj);
+}
+
+const char *
+JSONIterator::key(void) const
+{
+ return json_object_iter_key(m_iter);
+}
+
+JSONObject
+JSONIterator::value(void) const
+{
+ return JSONObject(json_object_iter_value(m_iter));
+}
+
+bool
+JSONIterator::next(void)
+{
+ m_iter = json_object_iter_next(m_obj, m_iter);
+ return m_iter != NULL;
+}
+
+JSONException::JSONException(json_t *obj, json_type type)
+{
+ char *s = NULL;
+ const char *t;
+
+ m_obj = json_incref(obj);
+ m_type = type;
+
+ if (obj != NULL)
+ s = json_dumps(m_obj, 0);
+
+ switch (type) {
+ case JSON_OBJECT: t = "OBJECT"; break;
+ case JSON_ARRAY: t = "ARRAY"; break;
+ case JSON_STRING: t = "STRING"; break;
+ case JSON_INTEGER: t = "INTEGER"; break;
+ case JSON_REAL: t = "REAL"; break;
+ case JSON_TRUE: t = "TRUE"; break;
+ case JSON_FALSE: t = "FALSE"; break;
+ case JSON_NULL: t = "NULL"; break;
+ default: t = "UNKNOWN"; break;
+ }
+
+ if (obj != NULL) {
+ m_reason = "Invalid JSON object: " + std::string(s);
+ if (type != JSON_NULL)
+ m_reason += " (excepted type " + std::string(t) + ")";
+ } else {
+ m_reason = "Internal JSON error";
+ }
+
+ if (s != NULL)
+ free(s);
+}
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