rwsf::ServletOutputStream

rwsf::ServletOutputStream  std::basic_ostream<char>

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Members

getBuffer() print()

println() reset()

~ServletOutputStream()

#include <rwsf/servlet/ServletOutputStream.h>

rwsf::ServletOutputStream provides a simple mechanism for writing a response. The class has a set of print() and println() functions which duplicate the corresponding methods in the Java ServletOutputStream class. A print() method writes the argument to the output stream. A println() method writes the argument and a newline to the output stream. Note that the print(bool) and println(bool) functions follow Java conventions and produce "true" and "false" rather than 1 and 0.

To construct an instance of this class, call either function getOutputStream() or function getWriter() of rwsf::ServletResponse.

#include <rwsf/servlet/http/HttpServlet.h>
#include <rwsf/servlet/http/HttpServletRequest.h>
#include <rwsf/servlet/http/HttpServletResponse.h>
#include <rwsf/cstring.h>
#include <iomanip>
#include <stdlib.h>
#include <math.h>

class DivideNumbers : public rwsf::HttpServlet
{

  protected:
    virtual void doGet(rwsf::HttpServletRequest& request, 
                       rwsf::HttpServletResponse& response)
    {
      doPost(request,response);
    };

    virtual void doPost(rwsf::HttpServletRequest& request, 
                        rwsf::HttpServletResponse& response);
};

rwsf_DEFINE_SERVLET(DivideNumbers)

void
DivideNumbers::doPost (rwsf::HttpServletRequest& request,
                       rwsf::HttpServletResponse& response)
{
  std::string num   = request.getParameter("numerator");
  std::string denom = request.getParameter("denominator");
  std::string prec  = request.getParameter("precision");

  double n = strtod(num.data(), (char**)NULL);
  double d = strtod(denom.data(), (char**)NULL);
               
  if (d == 0 || n == 0 ||
      fabs(d) == HUGE_VAL || fabs(n) == HUGE_VAL) 
  {
    response.sendError(500);
    return;
  }

  double result = n/d;

  int p = atoi(prec.data());

  if (p == 0) p = 3;

  response.setContentType("text/xml");

  rwsf::ServletOutputStream& out =  response.getOutputStream();
}

virtual
~ServletOutputStream();

Destructor.

std::string
getBuffer() const;

Returns the contents of the output buffer as a string.

rwsf::ServletOutputStream&
print(bool b);

Appends a bool value to the payload. This function appends the string "true" or the string "false" rather than 1 or 0.

rwsf::ServletOutputStream&
print(char c);

Appends a char value to the payload.

rwsf::ServletOutputStream&
print(unsigned char uc);

Appends an unsigned char to the payload.

rwsf::ServletOutputStream&
print(short s);

Appends a short value to the payload.

rwsf::ServletOutputStream&
print(unsigned short us);

Appends an unsigned short value to the payload.

rwsf::ServletOutputStream&
print(int i);

Appends an int value to the payload.

rwsf::ServletOutputStream&
print(unsigned int ui);

Appends an unsigned int to the payload.

rwsf::ServletOutputStream&
print(long l);

Appends a long value to the payload.

rwsf::ServletOutputStream&
print(unsigned long ul);

Appends an unsigned long value to the payload.

rwsf::ServletOutputStream&
print(float f);

Appends a float value to the payload.

rwsf::ServletOutputStream&
print(double d);

Appends a double value to the payload.

rwsf::ServletOutputStream&
print(const char *cs);

Appends a NULL terminated string value to the payload.

rwsf::ServletOutputStream&
print(const unsigned char *ucs);

Appends a NULL terminated string value to the payload.

rwsf::ServletOutputStream&
print(const std::string& str);

Appends an std::string value to the payload.

rwsf::ServletOutputStream&
println();

Appends a newline value to the payload.

rwsf::ServletOutputStream&
println(bool b);

Appends a bool value followed by a newline to the payload. This function appends the string "true" or the string "false" rather than 1 or 0.

rwsf::ServletOutputStream&
println(char c);

Appends a char value followed by a newline to the payload.

rwsf::ServletOutputStream& 
println(unsigned char uc);

Appends an unsigned char value followed by a newline to the payload.

rwsf::ServletOutputStream& 
println(short s);

Appends a short value followed by a newline to the payload.

rwsf::ServletOutputStream& 
println(unsigned short us);

Appends an unsigned short value followed by a newline to the payload.

rwsf::ServletOutputStream& 
println(int i);

Appends an int value followed by a newline to the payload.

rwsf::ServletOutputStream& 
println(unsigned int ui);

Appends an unsigned int value followed by a newline to the payload.

rwsf::ServletOutputStream& 
println(long l);

Appends a long value followed by a newline to the payload.

rwsf::ServletOutputStream& 
println(unsigned long ul);

Appends an unsigned long value followed by a newline to the payload.

rwsf::ServletOutputStream& 
println(float f);

Appends a float value followed by a newline to the payload.

rwsf::ServletOutputStream& 
println(double d);

Appends a double value followed by a newline to the payload.

rwsf::ServletOutputStream& 
println(const char *cs);

Appends a NULL terminated string value followed by a newline to the payload.

rwsf::ServletOutputStream& 
println(const unsigned char *ucs);

Appends a NULL terminated string value followed by a newline to the payload.

rwsf::ServletOutputStream& 
println(const std::string& str);

Appends a std::string value followed by a newline to the payload.

void 
reset();

Clears any internal buffer.

void
reset(const std::string& newContents);

Clears any internal buffer, then sets the contents of the internal buffer to newContents.

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