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Diffstat (limited to 'sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/ruby/src/tuscany/sca/ruby/RubyServiceProxy.cpp')
| -rw-r--r-- | sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/ruby/src/tuscany/sca/ruby/RubyServiceProxy.cpp | 374 |
1 files changed, 374 insertions, 0 deletions
diff --git a/sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/ruby/src/tuscany/sca/ruby/RubyServiceProxy.cpp b/sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/ruby/src/tuscany/sca/ruby/RubyServiceProxy.cpp new file mode 100644 index 0000000000..228f1f8940 --- /dev/null +++ b/sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/extensions/ruby/src/tuscany/sca/ruby/RubyServiceProxy.cpp @@ -0,0 +1,374 @@ +/* + * 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. + */ + +/* $Rev$ $Date$ */ + + +#include "tuscany/sca/ruby/RubyServiceProxy.h" +#include "tuscany/sca/util/Logging.h" +#include "tuscany/sca/core/SCARuntime.h" +#include "tuscany/sca/util/Exceptions.h" +#include "tuscany/sca/model/Reference.h" +#include "tuscany/sca/model/ReferenceType.h" +#include "tuscany/sca/model/Service.h" +#include "tuscany/sca/model/ServiceType.h" +#include "tuscany/sca/model/Component.h" +#include "tuscany/sca/model/ComponentType.h" +#include "tuscany/sca/core/ServiceWrapper.h" +#include "tuscany/sca/model/Composite.h" +#include "tuscany/sca/model/ServiceBinding.h" +#include "tuscany/sca/ruby/model/RubyImplementation.h" +#include "tuscany/sca/ruby/model/RubyReferenceBinding.h" + +extern "C" +{ + + // Initialize a Ruby proxy + SCA_RUBY_API VALUE tuscany_sca_ruby_proxy_initialize(VALUE self, VALUE serviceProxy) + { + rb_iv_set(self, "@cppProxy", serviceProxy); + return self; + } + + // Handle a method_missing message and dispatch to + // our C++ proxy + SCA_RUBY_API VALUE tuscany_sca_ruby_proxy_method_missing(int argc, VALUE* argv, VALUE self) + { + VALUE proxy = rb_iv_get(self, "@cppProxy"); + + // Get the target service wrapper + tuscany::sca::ruby::RubyServiceProxy *serviceProxy; + Data_Get_Struct(proxy, tuscany::sca::ruby::RubyServiceProxy, serviceProxy); + + // Handle the invocation + return serviceProxy->invoke(argc, argv); + + } + +} + +namespace tuscany +{ + namespace sca + { + namespace ruby + { + + VALUE RubyServiceProxy::proxyClass = Qnil; + + // ============================ + // Constructor: Create a proxy + // ============================ + RubyServiceProxy::RubyServiceProxy(Reference* reference) + : ServiceProxy(reference) + { + LOGENTRY(1,"RubyServiceProxy::constructor"); + + // ---------------------- + // Get the component + // ---------------------- + component = reference->getComponent(); + string name = reference->getType()->getName(); + + // Get the service wrapper + RubyReferenceBinding* referenceBinding = (RubyReferenceBinding*)reference->getBinding(); + + serviceWrapper = referenceBinding->getTargetServiceBinding()->getServiceWrapper(); + + // Create the Ruby proxy + createProxy(); + + LOGEXIT(1,"RubyServiceProxy::constructor"); + } + + // ============================ + // Constructor: Create a proxy + // ============================ + RubyServiceProxy::RubyServiceProxy(Service* service) + : ServiceProxy(0) + { + LOGENTRY(1,"RubyServiceProxy::constructor"); + + // ---------------------- + // Get the component + // ---------------------- + component = service->getComponent(); + string name = service->getType()->getName(); + + // Get the service wrapper + serviceWrapper = service->getBinding()->getServiceWrapper(); + + // Create the Ruby proxy + createProxy(); + + LOGEXIT(1,"RubyServiceProxy::constructor"); + } + + // ========== + // Destructor + // ========== + RubyServiceProxy::~RubyServiceProxy() + { + LOGENTRY(1,"RubyServiceProxy::destructor"); + LOGEXIT(1,"RubyServiceProxy::destructor"); + } + + void RubyServiceProxy::createProxy() + { + // Create the Ruby proxy class + if (RubyServiceProxy::proxyClass == Qnil) + { + VALUE module = rb_define_module("Tuscany"); + proxyClass = rb_define_class_under(module, "ServiceProxy", rb_cObject); + rb_define_method(proxyClass, "initialize", (VALUE(*)(ANYARGS))tuscany_sca_ruby_proxy_initialize, 1); + rb_define_method(proxyClass, "method_missing", (VALUE(*)(ANYARGS))tuscany_sca_ruby_proxy_method_missing, -1); + } + + // Create the Ruby proxy instance, pass the service wrapper to it + VALUE* args = new VALUE[1]; + args[0] = Data_Wrap_Struct(rb_cObject, NULL, NULL, this); + proxyValue = rb_class_new_instance(1, args, proxyClass); + + // Mark proxyValue busy so that it doesn't get GC'ed by Ruby + rb_gc_register_address(&proxyValue); + } + + + VALUE RubyServiceProxy::invoke(int argc, VALUE* argv) + { + // Get the method name + char* methodName = rb_id2name(SYM2ID(argv[0])); + + // Get the block passed by the caller + VALUE block =rb_block_given_p() ? rb_block_proc() : Qnil; + + // Create new Operation object + Operation operation(methodName); + + // Convert the Ruby parameters to C++ + for (int i = 1; i < argc; i++) + { + VALUE value = argv[i]; + + int valueType = TYPE(value); + + switch (valueType) + { + case T_FLOAT: + { + float* data = new float; + *data = rb_num2dbl(value); + operation.addParameter(data); + break; + } + case T_STRING: + { + string* data = new string(rb_string_value_cstr(&value)); + const char** cdata = new const char*; + *cdata = data->c_str(); + operation.addParameter(cdata); + break; + } + case T_FIXNUM: + { + long* data = new long; + *data = rb_num2long(value); + operation.addParameter(data); + break; + } + case T_BIGNUM: + { + long double* data = new long double; + *data = rb_num2dbl(value); + operation.addParameter(data); + break; + } + case T_TRUE: + { + bool* data = new bool; + *data = true; + operation.addParameter(data); + break; + } + case T_FALSE: + { + bool* data = new bool; + *data = false; + operation.addParameter(data); + break; + } + case T_OBJECT: + { + VALUE klass = rb_obj_class(value); + if (klass == RubyImplementation::getXMLDocumentClass()) + { + // Convert a REXML::Document to a DataObject + ID to_s = rb_intern("to_s"); + VALUE vstr = rb_funcall(value, to_s, 0); + string str = string(rb_string_value_cstr(&vstr)); + + Composite* composite = getReference()->getComponent()->getComposite(); + commonj::sdo::XMLHelper* xmlHelper = composite->getXMLHelper(); + commonj::sdo::XMLDocumentPtr xmlDoc = xmlHelper->load(str.c_str()); + + DataObjectPtr dob; + if (xmlDoc != NULL) + { + dob = xmlDoc->getRootDataObject(); + } + if (dob != NULL) + { + operation.addParameter(&dob); + } + else + { + string msg = "Document could not be converted to a DataObject"; + rb_raise(rb_eTypeError, msg.c_str()); + return Qnil; + } + } + else + { + string msg = "Ruby type not supported: " + valueType; + rb_raise(rb_eTypeError, msg.c_str()); + return Qnil; + } + break; + } + default:; + string msg = "Ruby type not supported: " + valueType; + rb_raise(rb_eTypeError, msg.c_str()); + return Qnil; + } + + } + + try + { + // Call into the target service wrapper + serviceWrapper->invoke(operation); + + // Convert the result to a Ruby value + VALUE value; + Operation::ParameterType resultType = operation.getReturnType(); + switch(resultType) + { + case Operation::BOOL: + { + if( *(bool*)operation.getReturnValue()) + { + //boolean true + value = rb_int2inum(1); + } + else + { + value = rb_int2inum(0); + } + break; + } + case Operation::SHORT: + { + value = rb_int2inum(*(short*)operation.getReturnValue()); + break; + } + case Operation::USHORT: + { + value = rb_uint2inum(*(unsigned short*)operation.getReturnValue()); + break; + } + case Operation::LONG: + { + value = rb_int2inum(*(long*)operation.getReturnValue()); + break; + } + case Operation::ULONG: + { + value = rb_uint2inum(*(unsigned long*)operation.getReturnValue()); + break; + } + case Operation::FLOAT: + { + value = rb_float_new(*(float*)operation.getReturnValue()); + break; + } + case Operation::DOUBLE: + { + value = rb_float_new(*(double*)operation.getReturnValue()); + break; + } + case Operation::LONGDOUBLE: + { + value = rb_float_new(*(long double*)operation.getReturnValue()); + break; + } + case Operation::CHARS: + { + value = rb_str_new2(*(char**)operation.getReturnValue()); + break; + } + case Operation::STRING: + { + value = rb_str_new2((*(string*)operation.getReturnValue()).c_str()); + break; + } + case Operation::DATAOBJECT: + { + DataObjectPtr dob = *(DataObjectPtr*)operation.getReturnValue(); + + // Convert a DataObject to a REXML Document object + Composite* composite = component->getComposite(); + commonj::sdo::XMLHelper* xmlHelper = composite->getXMLHelper(); + char* str = xmlHelper->save( + dob, + dob->getType().getURI(), + dob->getType().getName()); + VALUE vstr[1]; + vstr[0] = rb_str_new2(str); + + value = rb_class_new_instance(1, vstr, RubyImplementation::getXMLDocumentClass()); + break; + } + default: + { + //throw new ComponentInvocationException("Operation parameter type not supported"); + string msg = "Operation parameter type not supported" + resultType; + rb_raise(rb_eRuntimeError, msg.c_str()); + return Qnil; + } + } + + return value; + + } + catch(TuscanyRuntimeException &ex) + { + string msg = "Exception while invoking a service: "; + msg += ex.getEClassName(); + msg += ": "; + msg += ex.getMessageText(); + rb_raise(rb_eRuntimeError, msg.c_str()); + return Qnil; + } + + return Qnil; + } + + } // End namespace ruby + } // End namespace sca +} // End namespace tuscany |