String AbstractContextI::loadValueFromFile(const String& fileurl) const throw (Exception)
{
StringBuffer buf;
buf->append(fileurl);
if (0 != buf->indexOf(L"file://")) throw NamingException(WITHDETAILS(L"Expected url starting wtih 'file://' but found : " + fileurl));
bool mustprependworkingdirectory = L'/' != buf->charAt(7);
StringBuffer filename;
if (L':' == buf->charAt(9)) // windows filepath
{
filename->append(buf->substring(8));
filename = filename->replaceAll(L"/", L"\\");
}
else
{
filename->append(buf->substring(7));
}
String fullpath;
if (mustprependworkingdirectory)
{
Anything value;
lookup(L"/env/jlj_context_working_directory", value);
String workingdirectory = value;
fullpath = workingdirectory + filename;
}
else
{
fullpath = filename->toString();
}
if (verboseOutput()) cout << "JNDI context : Reading from file : " << fullpath << endl;
InputStream file = new FileInputStreamI(fullpath);
UTF8String content;
file->read(content, 0);
file->close();
return content->toString();
}
String AbstractContextI::loadValueFromURL(const String& urlstring) const throw (Exception)
{
String result;
StringBuffer buf;
buf->append(urlstring);
if (0 == buf->indexOf(L"http://"))
{
URL url = new URLI(urlstring);
HttpURLConnection httpurlconnection;
url->openConnection()->downcast(httpurlconnection);
if (verboseOutput()) cout << "JNDI context : Get response from url : " << urlstring << endl;
int rc = httpurlconnection->getResponseCode();
UTF8StringBuffer cbuf;
#if defined (_WINDOWS_SOURCE)
cbuf->append(getenv("TEMP"));
cbuf->append("\\");
cbuf->append(getenv("USERNAME"));
cbuf->append(".");
#else
cbuf->append(getenv("USER_HOME"));
cbuf->append("/.");
#endif
cbuf->append(urlstring->toMD5());
cbuf->append(".properties");
String cachefilepath = cbuf->toString()->toLowerCase();
if (200 != rc)
{
if (verboseOutput()) cout << "JNDI context : HTTP status = " << rc << endl;
if (verboseOutput()) cout << "JNDI context : Trying to load from cached file : " << cachefilepath << endl;
InputStream file = new FileInputStreamI(cachefilepath);
UTF8String content;
file->read(content, 0);
file->close();
result = content->toString();
}
else
{
String response = httpurlconnection->getResponseMessage();
Writer file = new FileWriterI(cachefilepath);
file->write(response);
file->close();
if (verboseOutput()) cout << "JNDI context : Caching to file : " << cachefilepath << endl;
result = response;
}
}
else if (0 == buf->indexOf(L"file://"))
{
result = loadValueFromFile(urlstring);
}
else
{
throw NamingException(WITHDETAILS(L"Unsupported URI format: " + urlstring));
}
StringBuffer b = result;
while (-1 < b->indexOf(L"${"))
{
InitialContext initialcontext = InitialContext::newInstance();
int bpos = 0;
int epos = 0;
while (bpos < b->length())
{
bpos = b->indexOf(L"${", bpos);
if (-1 == bpos) break;
epos = b->indexOf(L"}", bpos);
String variablename = b->substring(bpos + 2, epos);
StringAnything variablevalue ;
initialcontext->lookup(L"/" + variablename, variablevalue);
StringBuffer value = variablevalue->toString();
if (-1 < value->indexOf(L"${" + variablename + L"}") )
throw Exception(WITHDETAILS(L"Recursive reference found : ${" + variablename + L"}"));
b->replace(bpos, epos + 1, value->toString());
bpos = epos + 1;
}
}
return b->toString();
}
