2 * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #include <dpl/scoped_array.h>
19 #include <dpl/scoped_free.h>
20 #include "ScopedJSStringRef.h"
21 #include "Converter.h"
22 #include <dpl/log/log.h>
24 using namespace WrtDeviceApis::Commons;
26 namespace WrtDeviceApis {
27 namespace CommonsJavaScript {
29 Converter::Converter(JSContextRef context) : m_context(context)
33 Converter::~Converter()
37 JSObjectRef Converter::toJSObjectRef(const JSValueRef& arg)
40 Throw(NullPointerException);
42 JSValueRef exception = NULL;
43 JSObjectRef result = JSValueToObject(m_context, arg, &exception);
44 if ((NULL == result) || (NULL != exception)) {
45 ThrowMsg(ConversionException, "Couldn't convert to a JS Object.");
50 bool Converter::toBool(const JSValueRef& arg)
52 return JSValueToBoolean(m_context, arg);
55 unsigned char Converter::toUChar(const JSValueRef& arg)
57 return static_cast<unsigned char>(toChar(arg));
60 char Converter::toChar(const JSValueRef& arg)
62 double tmp = toNumber_(arg);
63 return (isNan(tmp) ? 0 : static_cast<char>(tmp));
66 int Converter::toInt(const JSValueRef& arg)
68 double tmp = toNumber_(arg);
69 return (isNan(tmp) ? 0 : static_cast<int>(tmp));
72 int Converter::toInt(const std::string &arg)
74 return static_cast<int>(toNumber_(arg));
77 long Converter::toLong(const JSValueRef& arg)
79 double tmp = toNumber_(arg);
80 return (isNan(tmp) ? 0 : static_cast<long>(tmp));
83 unsigned long Converter::toULong(const JSValueRef& arg)
85 return static_cast<unsigned long>(toLong(arg));
88 std::size_t Converter::toSizeT(const JSValueRef& arg)
90 double tmp = toNumber_(arg);
91 return (isNan(tmp) ? 0 : static_cast<std::size_t>(tmp));
94 std::size_t Converter::toSizeT(const JSStringRef& arg)
96 return static_cast<std::size_t>(toNumber_(arg));
99 double Converter::toDouble(const JSValueRef& arg)
101 return toNumber_(arg);
104 std::string Converter::toString(int arg)
106 return toString_(arg);
109 std::string Converter::toString(unsigned long arg)
111 return toString_(arg);
114 std::string Converter::toString(long arg)
116 return toString_(arg);
119 std::string Converter::toString(std::size_t arg)
121 return toString_(arg);
124 std::string Converter::toString(const JSValueRef& arg)
126 return toString_(arg);
129 std::string Converter::tryString(const JSValueRef& arg)
131 if (!JSValueIsString(m_context, arg) &&
132 !JSValueIsNumber(m_context, arg) &&
133 !JSValueIsBoolean(m_context, arg)) {
134 ThrowMsg(ConversionException,
135 "Argument is not convertable to JS String.");
138 return toString_(arg);
141 std::string Converter::toDateString(const JSValueRef& arg)
143 if (!JSValueIsObject(m_context, arg)) {
144 ThrowMsg(ConversionException, "Argument is not JS Date.");
147 return toString_(arg);
150 std::string Converter::toString(const JSStringRef& arg)
153 size_t jsSize = JSStringGetMaximumUTF8CStringSize(arg);
156 DPL::ScopedArray<char> buffer(new char[jsSize]);
157 size_t written = JSStringGetUTF8CString(arg, buffer.Get(), jsSize);
158 if (written > jsSize) {
159 ThrowMsg(ConversionException,
160 "Conversion could not be fully performed.");
162 result = buffer.Get();
168 time_t Converter::toDateTimeT(const JSValueRef& arg)
170 struct tm tm = toDateTm(arg);
174 tm Converter::toDateTm(const JSValueRef& arg)
176 std::string stringDate = toDateString(arg);
178 char* currentLocale = setlocale(LC_TIME, NULL);
179 if (currentLocale == NULL) {
180 ThrowMsg(ConversionException, "Couldn't get current locale.");
182 DPL::ScopedFree<char> currentLocaleCopy(strdup(currentLocale));
183 if (setlocale(LC_TIME, "C") == NULL) {
184 ThrowMsg(ConversionException, "Couldn't set POSIX locale.");
186 if (strptime(stringDate.c_str(), "%a %b %d %Y %T", &result) == NULL) {
187 ThrowMsg(ConversionException, "Couldn't convert supplied date.");
189 if (setlocale(LC_TIME, currentLocaleCopy.Get()) == NULL) {
190 ThrowMsg(ConversionException, "Couldn't set previous locale back.");
192 //strptime function doesn't affect tm_isdst flag.
193 //It may cause -1hr conversion error. Setting it to -1 informs that
194 //there is no information about daylight saving time.
195 result.tm_isdst = -1;
199 std::vector<unsigned char> Converter::toVectorOfUChars(const JSValueRef& arg)
201 return toVectorOfT_(arg, &Converter::toUChar);
204 std::vector<char> Converter::toVectorOfChars(const JSValueRef& arg)
206 return toVectorOfT_(arg, &Converter::toChar);
209 std::vector<int> Converter::toVectorOfInts(const JSValueRef& arg)
211 return toVectorOfT_(arg, &Converter::toInt);
214 std::vector<std::string> Converter::toVectorOfStrings(const JSValueRef& arg)
216 return toVectorOfT_(arg, &Converter::toString);
219 std::vector<time_t> Converter::toVectorOfTimeT(const JSValueRef& arg) {
220 return toVectorOfT_(arg, &Converter::toDateTimeT);
223 JSValueRef Converter::toJSValueRef(bool arg)
225 return JSValueMakeBoolean(m_context, arg);
228 JSValueRef Converter::toJSValueRef(int arg)
230 return JSValueMakeNumber(m_context, arg);
233 JSValueRef Converter::toJSValueRef(unsigned int arg)
235 return JSValueMakeNumber(m_context, arg);
238 JSValueRef Converter::toJSValueRef(unsigned long arg)
240 return JSValueMakeNumber(m_context, arg);
243 JSValueRef Converter::toJSValueRefLong(const long arg) {
244 return JSValueMakeNumber(m_context, arg);
247 JSValueRef Converter::toJSValueRef(long long int arg)
249 return JSValueMakeNumber(m_context, arg);
252 JSValueRef Converter::toJSValueRef(double arg)
254 return JSValueMakeNumber(m_context, arg);
257 JSValueRef Converter::toJSValueRef(const std::string& arg)
259 JSValueRef result = NULL;
260 JSStringRef jsString = JSStringCreateWithUTF8CString(arg.c_str());
261 result = JSValueMakeString(m_context, jsString);
262 JSStringRelease(jsString);
266 JSValueRef Converter::toJSValueRef(const tm& arg)
269 args[0] = JSValueMakeNumber(m_context, arg.tm_year + 1900);
270 args[1] = JSValueMakeNumber(m_context, arg.tm_mon);
271 args[2] = JSValueMakeNumber(m_context, arg.tm_mday);
272 args[3] = JSValueMakeNumber(m_context, arg.tm_hour);
273 args[4] = JSValueMakeNumber(m_context, arg.tm_min);
274 args[5] = JSValueMakeNumber(m_context, arg.tm_sec);
276 JSValueRef exception = NULL;
277 JSObjectRef result = JSObjectMakeDate(m_context, 6, args, &exception);
278 if (NULL != exception) {
279 ThrowMsg(ConversionException, "Couldn't convert to a JS Date.");
285 JSValueRef Converter::toJSValueRef(const time_t arg)
287 struct tm *tminfo = localtime(&arg);
288 return toJSValueRef(*tminfo);
291 JSValueRef Converter::toJSValueRef(const std::vector<std::string>& arg)
293 return toJSValueRef_(arg);
296 JSValueRef Converter::toJSValueRef(const char* arg)
298 return toJSValueRef(std::string(arg));
301 JSValueRef Converter::toJSValueRef(const std::vector<int>& arg) {
302 return toJSValueRef_(arg);
305 JSValueRef Converter::toJSValueRef(const std::vector<time_t>& arg) {
306 return toJSValueRef_(arg);
309 JSValueRef Converter::toJSValueRef(JSValueRef arg)
314 JSValueRef Converter::toJSValueRef(const std::vector<JSValueRef>& arg)
316 return toJSValueRef_(arg);
319 JSStringRef Converter::toJSStringRef(const std::string& arg)
321 return JSStringCreateWithUTF8CString(arg.c_str());
324 double Converter::toNumber_(const JSStringRef& arg)
326 return toNumber_(toString(arg));
329 double Converter::toNumber_(const std::string& arg)
332 std::stringstream ss(arg);
333 if (!(ss >> result)) {
334 Throw(ConversionException);
339 double Converter::toNumber_(const JSValueRef& arg)
341 JSValueRef exception = NULL;
342 double result = JSValueToNumber(m_context, arg, &exception);
343 if (NULL != exception) {
344 ThrowMsg(ConversionException, "Couldn't convert to a number.");
349 std::string Converter::toString_(const JSValueRef& arg)
353 JSValueRef exception = NULL;
354 JSStringRef str = JSValueToStringCopy(m_context, arg, &exception);
356 ThrowMsg(ConversionException, "Couldn't cast to a string.");
359 size_t jsSize = JSStringGetMaximumUTF8CStringSize(str);
361 DPL::ScopedArray<char> buffer(new char[jsSize]);
362 JSStringGetUTF8CString(str, buffer.Get(), jsSize);
363 result = buffer.Get();
365 JSStringRelease(str);
369 bool Converter::isNan(double value) const
371 // This should work unless -ffast-math (GCC) option is used.
372 STATIC_CHECK(std::numeric_limits<double>::is_iec559,
373 NOT_IEEE754_REPRESENTATION);
374 return (value != value);
377 } // CommonsJavaScript