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#!/usr/bin/env ruby
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
$: << ".." # Include .. in load path
require 'cppgen'
class ConstantsGen < CppGen
def initialize(outdir, amqp)
super(outdir, amqp)
@namespace="qpid::framing"
@dir="qpid/framing"
end
def constants_h()
h_file("#{@dir}/constants") {
namespace(@namespace) {
# Constants for class/method names.
scope("enum AmqpConstant {","};") {
l=[]
l.concat @amqp.constants.map { |c| "#{c.name.shout}=#{c.value}" }
@amqp.classes.each { |c|
l << "#{c.name.shout}_CLASS_ID=#{c.code}"
l.concat c.methods_.map { |m|
"#{c.name.shout}_#{m.name.shout}_METHOD_ID=#{m.code}" }
}
genl l.join(",\n")
}
}
}
end
def enum_h()
h_file("#{@dir}/enum") {
# Constants for enum domains.
namespace(@namespace) {
@amqp.domains.each { |d| declare_enum(d.enum) if d.enum }
@amqp.classes.each { |c|
enums=c.collect_all(AmqpEnum)
if !enums.empty? then
namespace(c.nsname) { enums.each { |e| declare_enum(e) } }
end
}
}
}
end
def declare_enum(enum)
# Generated like this: enum containing_class::Foo { FOO_X, FOO_Y; }
name="#{enum.parent.name.caps}"
prefix=enum.parent.name.shout+"_"
scope("enum #{name} {","};") {
genl enum.choices.collect { |c| "#{prefix}#{c.name.shout}=#{c.value}" }.join(",\n")
}
end
def declare_exception(c, base, package)
name=c.name.caps+"Exception"
genl
doxygen_comment { genl c.doc }
struct(c.name.caps+"Exception", base) {
genl "std::string getPrefix() const { return \"#{c.name}\"; }"
genl "#{c.name.caps}Exception(const std::string& msg=std::string()) : #{base}(#{c.value}, \"\"+msg) {}"
}
end
def declare_exceptions(class_name, domain_name, base)
enum = @amqp.class_(class_name).domain(domain_name).enum
enum.choices.each { |c| declare_exception(c, base, class_name) unless c.name == "normal" }
genl
genl "sys::ExceptionHolder create#{base}(int code, const std::string& text);"
end
def create_exception(class_name, domain_name, base, invalid)
scope("sys::ExceptionHolder create#{base}(int code, const std::string& text) {") {
genl "sys::ExceptionHolder holder;"
scope("switch (code) {") {
enum = @amqp.class_(class_name).domain(domain_name).enum
enum.choices.each { |c|
assign = "holder = new #{c.name.caps}Exception(text); " unless c.name == "normal"
genl "case #{c.value}: #{assign}break;"
}
genl " holder = new #{invalid}(QPID_MSG(\"Bad exception code: \" << code << \": \" << text));"
}
genl "return holder;"
}
end
def reply_exceptions_h()
h_file("#{@dir}/reply_exceptions") {
include "qpid/Exception"
include "qpid/sys/ExceptionHolder"
namespace(@namespace) {
declare_exceptions("execution", "error-code", "SessionException")
declare_exceptions("connection", "close-code", "ConnectionException")
declare_exceptions("session", "detach-code", "ChannelException")
}
}
end
def reply_exceptions_cpp()
cpp_file("#{@dir}/reply_exceptions") {
include "#{@dir}/reply_exceptions"
include "<sstream>"
include "<assert.h>"
namespace("qpid::framing") {
create_exception("execution", "error-code", "SessionException", "InvalidArgumentException")
# FIXME aconway 2008-10-07: there are no good exception codes in 0-10 for an invalid code.
# The following choices are arbitrary.
create_exception("connection", "close-code", "ConnectionException", "FramingErrorException")
create_exception("session", "detach-code", "ChannelException", "NotAttachedException")
}
}
end
def generate()
constants_h
enum_h
reply_exceptions_h
reply_exceptions_cpp
end
end
ConstantsGen.new($outdir, $amqp).generate();
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