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 {
28 Converter::Converter(JSContextRef context) : m_context(context)
31 Converter::~Converter()
34 JSObjectRef Converter::toJSObjectRef(const JSValueRef& arg)
37 Throw(NullPointerException);
39 JSValueRef exception = NULL;
40 JSObjectRef result = JSValueToObject(m_context, arg, &exception);
41 if ((NULL == result) || (NULL != exception)) {
42 ThrowMsg(ConversionException, "Couldn't convert to a JS Object.");
47 bool Converter::toBool(const JSValueRef& arg)
49 return JSValueToBoolean(m_context, arg);
52 unsigned char Converter::toUChar(const JSValueRef& arg)
54 return static_cast<unsigned char>(toChar(arg));
57 char Converter::toChar(const JSValueRef& arg)
59 double tmp = toNumber_(arg);
60 return (isNan(tmp) ? 0 : static_cast<char>(tmp));
63 int Converter::toInt(const JSValueRef& arg)
65 double tmp = toNumber_(arg);
66 return (isNan(tmp) ? 0 : static_cast<int>(tmp));
69 int Converter::toInt(const std::string &arg)
71 return static_cast<int>(toNumber_(arg));
74 long Converter::toLong(const JSValueRef& arg)
76 double tmp = toNumber_(arg);
77 return (isNan(tmp) ? 0 : static_cast<long>(tmp));
80 long long Converter::toLongLong(const JSValueRef& arg)
82 double tmp = toNumber_(arg);
83 return (isNan(tmp) ? 0 : static_cast<long long>(tmp));
86 unsigned long Converter::toULong(const JSValueRef& arg)
88 double tmp = toNumber_(arg);
89 return (isNan(tmp) ? 0 : static_cast<unsigned long>(tmp));
92 std::size_t Converter::toSizeT(const JSValueRef& arg)
94 double tmp = toNumber_(arg);
95 return (isNan(tmp) ? 0 : static_cast<std::size_t>(tmp));
98 std::size_t Converter::toSizeT(const JSStringRef& arg)
100 return static_cast<std::size_t>(toNumber_(arg));
103 double Converter::toDouble(const JSValueRef& arg)
105 return toNumber_(arg);
108 std::string Converter::toString(int arg)
110 return toString_(arg);
113 std::string Converter::toString(unsigned long arg)
115 return toString_(arg);
118 std::string Converter::toString(long arg)
120 return toString_(arg);
123 std::string Converter::toString(std::size_t arg)
125 return toString_(arg);
128 std::string Converter::toString(const JSValueRef& arg)
130 return toString_(arg);
133 std::string Converter::tryString(const JSValueRef& arg)
135 if (!JSValueIsString(m_context, arg) &&
136 !JSValueIsNumber(m_context, arg) &&
137 !JSValueIsBoolean(m_context, arg))
139 ThrowMsg(ConversionException,
140 "Argument is not convertable to JS String.");
143 return toString_(arg);
146 std::string Converter::toDateString(const JSValueRef& arg)
148 if (!JSValueIsObject(m_context, arg)) {
149 ThrowMsg(ConversionException, "Argument is not JS Date.");
152 return toString_(arg);
155 std::string Converter::toString(const JSStringRef& arg)
158 size_t jsSize = JSStringGetMaximumUTF8CStringSize(arg);
161 DPL::ScopedArray<char> buffer(new char[jsSize]);
162 size_t written = JSStringGetUTF8CString(arg, buffer.Get(), jsSize);
163 if (written > jsSize) {
164 ThrowMsg(ConversionException,
165 "Conversion could not be fully performed.");
167 result = buffer.Get();
173 time_t Converter::toDateTimeT(const JSValueRef& arg)
175 struct tm tm = toDateTm(arg);
179 tm Converter::toDateTm(const JSValueRef& arg)
181 std::string stringDate = toDateString(arg);
183 char* currentLocale = setlocale(LC_TIME, NULL);
184 if (currentLocale == NULL) {
185 ThrowMsg(ConversionException, "Couldn't get current locale.");
187 DPL::ScopedFree<char> currentLocaleCopy(strdup(currentLocale));
188 if (setlocale(LC_TIME, "C") == NULL) {
189 ThrowMsg(ConversionException, "Couldn't set POSIX locale.");
191 if (strptime(stringDate.c_str(), "%a %b %d %Y %T", &result) == NULL) {
192 ThrowMsg(ConversionException, "Couldn't convert supplied date.");
194 if (setlocale(LC_TIME, currentLocaleCopy.Get()) == NULL) {
195 ThrowMsg(ConversionException, "Couldn't set previous locale back.");
197 //strptime function doesn't affect tm_isdst flag.
198 //It may cause -1hr conversion error. Setting it to -1 informs that
199 //there is no information about daylight saving time.
200 result.tm_isdst = -1;
204 std::vector<unsigned char> Converter::toVectorOfUChars(const JSValueRef& arg)
206 return toVectorOfT_(arg, &Converter::toUChar);
209 std::vector<char> Converter::toVectorOfChars(const JSValueRef& arg)
211 return toVectorOfT_(arg, &Converter::toChar);
214 std::vector<int> Converter::toVectorOfInts(const JSValueRef& arg)
216 return toVectorOfT_(arg, &Converter::toInt);
219 std::vector<std::string> Converter::toVectorOfStrings(const JSValueRef& arg)
221 return toVectorOfT_(arg, &Converter::toString);
224 std::vector<time_t> Converter::toVectorOfTimeT(const JSValueRef& arg)
226 return toVectorOfT_(arg, &Converter::toDateTimeT);
229 JSValueRef Converter::toJSValueRef(bool arg)
231 return JSValueMakeBoolean(m_context, arg);
234 JSValueRef Converter::toJSValueRef(int arg)
236 return JSValueMakeNumber(m_context, arg);
239 JSValueRef Converter::toJSValueRef(unsigned int arg)
241 return JSValueMakeNumber(m_context, arg);
244 JSValueRef Converter::toJSValueRef(unsigned long arg)
246 return JSValueMakeNumber(m_context, arg);
249 JSValueRef Converter::toJSValueRefLong(const long arg)
251 return JSValueMakeNumber(m_context, arg);
254 JSValueRef Converter::toJSValueRef(long long int arg)
256 return JSValueMakeNumber(m_context, arg);
259 JSValueRef Converter::toJSValueRef(double arg)
261 return JSValueMakeNumber(m_context, arg);
264 JSValueRef Converter::toJSValueRef(const std::string& arg)
266 JSValueRef result = NULL;
267 JSStringRef jsString = JSStringCreateWithUTF8CString(arg.c_str());
268 result = JSValueMakeString(m_context, jsString);
269 JSStringRelease(jsString);
273 JSValueRef Converter::toJSValueRef(const tm& arg)
276 args[0] = JSValueMakeNumber(m_context, arg.tm_year + 1900);
277 args[1] = JSValueMakeNumber(m_context, arg.tm_mon);
278 args[2] = JSValueMakeNumber(m_context, arg.tm_mday);
279 args[3] = JSValueMakeNumber(m_context, arg.tm_hour);
280 args[4] = JSValueMakeNumber(m_context, arg.tm_min);
281 args[5] = JSValueMakeNumber(m_context, arg.tm_sec);
283 JSValueRef exception = NULL;
284 JSObjectRef result = JSObjectMakeDate(m_context, 6, args, &exception);
285 if (NULL != exception) {
286 ThrowMsg(ConversionException, "Couldn't convert to a JS Date.");
292 JSValueRef Converter::toJSValueRef(const time_t arg)
295 memset(&tminfo,0,sizeof(tminfo));
296 localtime_r(&arg, &tminfo);
297 return toJSValueRef(tminfo);
300 JSValueRef Converter::toJSValueRef(const std::vector<std::string>& arg)
302 return toJSValueRef_(arg);
305 JSValueRef Converter::toJSValueRef(const char* arg)
307 return toJSValueRef(std::string(arg));
310 JSValueRef Converter::toJSValueRef(const std::vector<int>& arg)
312 return toJSValueRef_(arg);
315 JSValueRef Converter::toJSValueRef(const std::vector<time_t>& arg)
317 return toJSValueRef_(arg);
320 JSValueRef Converter::toJSValueRef(JSValueRef arg)
325 JSValueRef Converter::toJSValueRef(const std::vector<JSValueRef>& arg)
327 return toJSValueRef_(arg);
330 JSStringRef Converter::toJSStringRef(const std::string& arg)
332 return JSStringCreateWithUTF8CString(arg.c_str());
335 double Converter::toNumber_(const JSStringRef& arg)
337 return toNumber_(toString(arg));
340 double Converter::toNumber_(const std::string& arg)
343 std::stringstream ss(arg);
344 if (!(ss >> result)) {
345 Throw(ConversionException);
350 double Converter::toNumber_(const JSValueRef& arg)
352 JSValueRef exception = NULL;
353 double result = JSValueToNumber(m_context, arg, &exception);
354 if (NULL != exception) {
355 ThrowMsg(ConversionException, "Couldn't convert to a number.");
360 std::string Converter::toString_(const JSValueRef& arg)
364 JSValueRef exception = NULL;
365 JSStringRef str = JSValueToStringCopy(m_context, arg, &exception);
367 ThrowMsg(ConversionException, "Couldn't cast to a string.");
370 size_t jsSize = JSStringGetMaximumUTF8CStringSize(str);
372 DPL::ScopedArray<char> buffer(new char[jsSize]);
373 JSStringGetUTF8CString(str, buffer.Get(), jsSize);
374 result = buffer.Get();
376 JSStringRelease(str);
380 bool Converter::isNan(double value) const
382 // This should work unless -ffast-math (GCC) option is used.
383 STATIC_CHECK(std::numeric_limits<double>::is_iec559,
384 NOT_IEEE754_REPRESENTATION);
385 return (value != value);
387 } // CommonsJavaScript