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#!/usr/bin/env ruby
# Usage: output_directory xml_spec_file [xml_spec_file...]
#
$: << '..'
require 'cppgen'
class SessionGen < CppGen
def initialize(outdir, amqp)
super(outdir, amqp)
@chassis="server"
@classname="Session"
end
def return_type(m)
if (m.result)
return "TypedResult<qpid::framing::#{m.result.cpptype.ret}>"
elsif (not m.responses().empty?)
return "Response"
else
return "Completion"
end
end
def declare_method (m)
param_unpackers = m.fields.collect { |f| "args[#{f.cppname}|#{f.cpptype.default_value}]" }
if (m.content())
param_names = m.param_names + ["content"]
param_unpackers << "args[content|DefaultContent(\"\")]"
params=m.signature + ["const MethodContent& content"]
else
param_names = m.param_names
params=m.signature
end
if (params.empty?)
gen "#{return_type(m)} #{m.parent.name.lcaps}#{m.name.caps}();\n\n"
else
genl "template <class ArgumentPack> #{return_type(m)} #{m.parent.name.lcaps}#{m.name.caps}(ArgumentPack const& args)"
genl "{"
indent {
genl "return #{m.parent.name.lcaps}#{m.name.caps}(#{param_unpackers.join(",\n")});"
}
genl "}"
#generate the 'real' methods signature
gen "#{return_type(m)} #{m.parent.name.lcaps}#{m.name.caps}("
indent { gen params.join(",\n") }
gen ");\n\n"
#generate some overloaded methods to handle keyword args
boost_max_arity = 8
if param_names.length > boost_max_arity
keywords = param_names[1..boost_max_arity].collect { |p| "keyword::#{p}" }
else
keywords = param_names.collect { |p| "keyword::#{p}" }
end
genl "typedef boost::parameter::parameters< #{keywords.join(",")} > #{m.parent.name.caps}#{m.name.caps}Params;\n"
j = 1
while j <= params.length && j <= boost_max_arity
dummy_args = Array.new(j) { |i| "P#{i} const& p#{i}"}
dummy_names = Array.new(j) { |i| "p#{i}"}
dummy_types = Array.new(j) { |i| "class P#{i}"}
genl "template <#{dummy_types.join(',')}> #{return_type(m)} #{m.parent.name.lcaps}#{m.name.caps}_(#{dummy_args.join(',')})"
genl "{"
indent {
genl "return #{m.parent.name.lcaps}#{m.name.caps}(#{m.parent.name.caps}#{m.name.caps}Params()(#{dummy_names.join(',')}));"
}
genl "}"
j = j + 1
end
end
end
def define_method (m)
if (m.content())
params=m.signature + ["const MethodContent& content"]
else
params=m.signature
end
if (params.empty?)
gen "#{return_type(m)} Session::#{m.parent.name.lcaps}#{m.name.caps}(){\n\n"
else
gen "#{return_type(m)} Session::#{m.parent.name.lcaps}#{m.name.caps}("
indent { gen params.join(",\n") }
gen "){\n\n"
end
indent (2) {
gen "return #{return_type(m)}(impl()->send(#{m.body_name}("
params = ["version"] + m.param_names
gen params.join(", ")
other_params=[]
if (m.content())
gen "), content), impl());\n"
else
gen ")), impl());\n"
end
}
gen "}\n\n"
end
def declare_keywords(classes)
#need to assemble a listof all the field names
keywords = classes.collect { |c| c.methods_on(@chassis).collect { |m| m.param_names } }.flatten().uniq()
keywords.each { |k| genl "BOOST_PARAMETER_KEYWORD(keyword, #{k})" }
genl "BOOST_PARAMETER_KEYWORD(keyword, content)"
end
def declare_class(c)
c.methods_on(@chassis).each { |m| declare_method(m) }
end
def define_class(c)
c.methods_on(@chassis).each { |m| define_method(m) }
end
def generate()
excludes = ["channel", "connection", "session", "execution"]
h_file("qpid/client/#{@classname}.h") {
genl "#define BOOST_PARAMETER_MAX_ARITY 8"
gen <<EOS
#include <sstream>
#include <boost/parameter.hpp>
#include "qpid/framing/amqp_framing.h"
#include "qpid/framing/amqp_structs.h"
#include "qpid/framing/ProtocolVersion.h"
#include "qpid/framing/MethodContent.h"
#include "qpid/framing/TransferContent.h"
#include "qpid/client/Completion.h"
#include "qpid/client/ConnectionImpl.h"
#include "qpid/client/Response.h"
#include "qpid/client/ScopedAssociation.h"
#include "qpid/client/TypedResult.h"
namespace qpid {
namespace client {
using std::string;
using framing::Content;
using framing::FieldTable;
using framing::MethodContent;
using framing::SequenceNumberSet;
EOS
declare_keywords(@amqp.classes.select { |c| !excludes.include?(c.name) })
genl
gen <<EOS
class #{@classname} {
ScopedAssociation::shared_ptr assoc;
framing::ProtocolVersion version;
SessionCore::shared_ptr impl();
public:
#{@classname}();
#{@classname}(ScopedAssociation::shared_ptr);
framing::FrameSet::shared_ptr get() { return impl()->get(); }
void setSynchronous(bool sync) { impl()->setSync(sync); }
void close();
Execution& execution() { return impl()->getExecution(); }
typedef framing::TransferContent DefaultContent;
EOS
indent { @amqp.classes.each { |c| declare_class(c) if !excludes.include?(c.name) } }
gen <<EOS
}; /* class #{@classname} */
}
}
EOS
}
# .cpp file
cpp_file("qpid/client/#{@classname}.cpp") {
gen <<EOS
#include "#{@classname}.h"
#include "qpid/framing/all_method_bodies.h"
using std::string;
using namespace qpid::framing;
namespace qpid {
namespace client {
#{@classname}::#{@classname}() {}
#{@classname}::#{@classname}(ScopedAssociation::shared_ptr _assoc) : assoc(_assoc) {}
SessionCore::shared_ptr #{@classname}::impl()
{
if (!assoc) throw Exception("Uninitialised session");
return assoc->session;
}
void #{@classname}::close()
{
impl()->close();
}
EOS
@amqp.classes.each { |c| define_class(c) if !excludes.include?(c.name) }
gen <<EOS
}} // namespace qpid::client
EOS
}
end
end
SessionGen.new(ARGV[0], Amqp).generate()
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