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Posted to commits@hawq.apache.org by ml...@apache.org on 2016/09/08 02:07:58 UTC
[25/70] [partial] incubator-hawq git commit: HAWQ-959. revert thrift
build commands.
http://git-wip-us.apache.org/repos/asf/incubator-hawq/blob/72ea8afd/depends/thirdparty/thrift/compiler/cpp/src/generate/t_py_generator.cc
----------------------------------------------------------------------
diff --git a/depends/thirdparty/thrift/compiler/cpp/src/generate/t_py_generator.cc b/depends/thirdparty/thrift/compiler/cpp/src/generate/t_py_generator.cc
deleted file mode 100644
index 9c43b1f..0000000
--- a/depends/thirdparty/thrift/compiler/cpp/src/generate/t_py_generator.cc
+++ /dev/null
@@ -1,2461 +0,0 @@
-/*
- * 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 <string>
-#include <fstream>
-#include <iostream>
-#include <vector>
-
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sstream>
-#include <algorithm>
-#include "t_generator.h"
-#include "platform.h"
-#include "version.h"
-
-using std::map;
-using std::ofstream;
-using std::ostringstream;
-using std::string;
-using std::stringstream;
-using std::vector;
-
-static const string endl = "\n"; // avoid ostream << std::endl flushes
-
-/**
- * Python code generator.
- *
- */
-class t_py_generator : public t_generator {
-public:
- t_py_generator(t_program* program,
- const std::map<std::string, std::string>& parsed_options,
- const std::string& option_string)
- : t_generator(program) {
- (void)option_string;
- std::map<std::string, std::string>::const_iterator iter;
-
- iter = parsed_options.find("new_style");
- gen_newstyle_ = (iter != parsed_options.end());
-
- iter = parsed_options.find("slots");
- gen_slots_ = (iter != parsed_options.end());
-
- iter = parsed_options.find("dynamic");
- gen_dynamic_ = (iter != parsed_options.end());
-
- if (gen_dynamic_) {
- gen_newstyle_ = 0; // dynamic is newstyle
- gen_dynbaseclass_ = "TBase";
- gen_dynbaseclass_exc_ = "TExceptionBase";
- import_dynbase_ = "from thrift.protocol.TBase import TBase, TExceptionBase, TTransport\n";
- }
-
- iter = parsed_options.find("dynbase");
- if (iter != parsed_options.end()) {
- gen_dynbase_ = true;
- gen_dynbaseclass_ = (iter->second);
- }
-
- iter = parsed_options.find("dynexc");
- if (iter != parsed_options.end()) {
- gen_dynbaseclass_exc_ = (iter->second);
- }
-
- iter = parsed_options.find("dynimport");
- if (iter != parsed_options.end()) {
- gen_dynbase_ = true;
- import_dynbase_ = (iter->second);
- }
-
- iter = parsed_options.find("twisted");
- gen_twisted_ = (iter != parsed_options.end());
-
- iter = parsed_options.find("tornado");
- gen_tornado_ = (iter != parsed_options.end());
-
- if (gen_twisted_ && gen_tornado_) {
- throw "at most one of 'twisted' and 'tornado' are allowed";
- }
-
- iter = parsed_options.find("utf8strings");
- gen_utf8strings_ = (iter != parsed_options.end());
-
- iter = parsed_options.find("coding");
- if (iter != parsed_options.end()) {
- coding_ = iter->second;
- }
-
- copy_options_ = option_string;
-
- if (gen_twisted_) {
- out_dir_base_ = "gen-py.twisted";
- } else if (gen_tornado_) {
- out_dir_base_ = "gen-py.tornado";
- } else {
- out_dir_base_ = "gen-py";
- }
- }
-
- /**
- * Init and close methods
- */
-
- void init_generator();
- void close_generator();
-
- /**
- * Program-level generation functions
- */
-
- void generate_typedef(t_typedef* ttypedef);
- void generate_enum(t_enum* tenum);
- void generate_const(t_const* tconst);
- void generate_struct(t_struct* tstruct);
- void generate_xception(t_struct* txception);
- void generate_service(t_service* tservice);
-
- std::string render_const_value(t_type* type, t_const_value* value);
-
- /**
- * Struct generation code
- */
-
- void generate_py_struct(t_struct* tstruct, bool is_exception);
- void generate_py_struct_definition(std::ofstream& out,
- t_struct* tstruct,
- bool is_xception = false,
- bool is_result = false);
- void generate_py_struct_reader(std::ofstream& out, t_struct* tstruct);
- void generate_py_struct_writer(std::ofstream& out, t_struct* tstruct);
- void generate_py_struct_required_validator(std::ofstream& out, t_struct* tstruct);
- void generate_py_function_helpers(t_function* tfunction);
-
- /**
- * Service-level generation functions
- */
-
- void generate_service_helpers(t_service* tservice);
- void generate_service_interface(t_service* tservice);
- void generate_service_client(t_service* tservice);
- void generate_service_remote(t_service* tservice);
- void generate_service_server(t_service* tservice);
- void generate_process_function(t_service* tservice, t_function* tfunction);
-
- /**
- * Serialization constructs
- */
-
- void generate_deserialize_field(std::ofstream& out,
- t_field* tfield,
- std::string prefix = "",
- bool inclass = false);
-
- void generate_deserialize_struct(std::ofstream& out, t_struct* tstruct, std::string prefix = "");
-
- void generate_deserialize_container(std::ofstream& out, t_type* ttype, std::string prefix = "");
-
- void generate_deserialize_set_element(std::ofstream& out, t_set* tset, std::string prefix = "");
-
- void generate_deserialize_map_element(std::ofstream& out, t_map* tmap, std::string prefix = "");
-
- void generate_deserialize_list_element(std::ofstream& out,
- t_list* tlist,
- std::string prefix = "");
-
- void generate_serialize_field(std::ofstream& out, t_field* tfield, std::string prefix = "");
-
- void generate_serialize_struct(std::ofstream& out, t_struct* tstruct, std::string prefix = "");
-
- void generate_serialize_container(std::ofstream& out, t_type* ttype, std::string prefix = "");
-
- void generate_serialize_map_element(std::ofstream& out,
- t_map* tmap,
- std::string kiter,
- std::string viter);
-
- void generate_serialize_set_element(std::ofstream& out, t_set* tmap, std::string iter);
-
- void generate_serialize_list_element(std::ofstream& out, t_list* tlist, std::string iter);
-
- void generate_python_docstring(std::ofstream& out, t_struct* tstruct);
-
- void generate_python_docstring(std::ofstream& out, t_function* tfunction);
-
- void generate_python_docstring(std::ofstream& out,
- t_doc* tdoc,
- t_struct* tstruct,
- const char* subheader);
-
- void generate_python_docstring(std::ofstream& out, t_doc* tdoc);
-
- /**
- * Helper rendering functions
- */
-
- std::string py_autogen_comment();
- std::string py_imports();
- std::string render_includes();
- std::string render_fastbinary_includes();
- std::string declare_argument(t_field* tfield);
- std::string render_field_default_value(t_field* tfield);
- std::string type_name(t_type* ttype);
- std::string function_signature(t_function* tfunction, bool interface = false);
- std::string argument_list(t_struct* tstruct,
- std::vector<std::string>* pre = NULL,
- std::vector<std::string>* post = NULL);
- std::string type_to_enum(t_type* ttype);
- std::string type_to_spec_args(t_type* ttype);
-
- static bool is_valid_namespace(const std::string& sub_namespace) {
- return sub_namespace == "twisted";
- }
-
- static std::string get_real_py_module(const t_program* program, bool gen_twisted) {
- if (gen_twisted) {
- std::string twisted_module = program->get_namespace("py.twisted");
- if (!twisted_module.empty()) {
- return twisted_module;
- }
- }
-
- std::string real_module = program->get_namespace("py");
- if (real_module.empty()) {
- return program->get_name();
- }
- return real_module;
- }
-
-private:
- /**
- * True if we should generate new-style classes.
- */
- bool gen_newstyle_;
-
- /**
- * True if we should generate dynamic style classes.
- */
- bool gen_dynamic_;
-
- bool gen_dynbase_;
- std::string gen_dynbaseclass_;
- std::string gen_dynbaseclass_exc_;
-
- std::string import_dynbase_;
-
- bool gen_slots_;
-
- std::string copy_options_;
-
- /**
- * True if we should generate Twisted-friendly RPC services.
- */
- bool gen_twisted_;
-
- /**
- * True if we should generate code for use with Tornado
- */
- bool gen_tornado_;
-
- /**
- * True if strings should be encoded using utf-8.
- */
- bool gen_utf8strings_;
-
- /**
- * specify generated file encoding
- * eg. # -*- coding: utf-8 -*-
- */
- string coding_;
-
- /**
- * File streams
- */
-
- std::ofstream f_types_;
- std::ofstream f_consts_;
- std::ofstream f_service_;
-
- std::string package_dir_;
- std::string module_;
-};
-
-/**
- * Prepares for file generation by opening up the necessary file output
- * streams.
- *
- * @param tprogram The program to generate
- */
-void t_py_generator::init_generator() {
- // Make output directory
- string module = get_real_py_module(program_, gen_twisted_);
- package_dir_ = get_out_dir();
- module_ = module;
- while (true) {
- // TODO: Do better error checking here.
- MKDIR(package_dir_.c_str());
- std::ofstream init_py((package_dir_ + "/__init__.py").c_str(), std::ios_base::app);
- init_py.close();
- if (module.empty()) {
- break;
- }
- string::size_type pos = module.find('.');
- if (pos == string::npos) {
- package_dir_ += "/";
- package_dir_ += module;
- module.clear();
- } else {
- package_dir_ += "/";
- package_dir_ += module.substr(0, pos);
- module.erase(0, pos + 1);
- }
- }
-
- // Make output file
- string f_types_name = package_dir_ + "/" + "ttypes.py";
- f_types_.open(f_types_name.c_str());
-
- string f_consts_name = package_dir_ + "/" + "constants.py";
- f_consts_.open(f_consts_name.c_str());
-
- string f_init_name = package_dir_ + "/__init__.py";
- ofstream f_init;
- f_init.open(f_init_name.c_str());
- f_init << "__all__ = ['ttypes', 'constants'";
- vector<t_service*> services = program_->get_services();
- vector<t_service*>::iterator sv_iter;
- for (sv_iter = services.begin(); sv_iter != services.end(); ++sv_iter) {
- f_init << ", '" << (*sv_iter)->get_name() << "'";
- }
- f_init << "]" << endl;
- f_init.close();
-
- // Print header
- f_types_ << py_autogen_comment() << endl << py_imports() << endl << render_includes() << endl
- << render_fastbinary_includes() << endl << endl;
-
- f_consts_ << py_autogen_comment() << endl << py_imports() << endl << "from ttypes import *"
- << endl << endl;
-}
-
-/**
- * Renders all the imports necessary for including another Thrift program
- */
-string t_py_generator::render_includes() {
- const vector<t_program*>& includes = program_->get_includes();
- string result = "";
- for (size_t i = 0; i < includes.size(); ++i) {
- result += "import " + get_real_py_module(includes[i], gen_twisted_) + ".ttypes\n";
- }
- if (includes.size() > 0) {
- result += "\n";
- }
- return result;
-}
-
-/**
- * Renders all the imports necessary to use the accelerated TBinaryProtocol
- */
-string t_py_generator::render_fastbinary_includes() {
- string hdr = "";
- if (gen_dynamic_) {
- hdr += std::string(import_dynbase_);
- } else {
- hdr += "from thrift.transport import TTransport\n"
- "from thrift.protocol import TBinaryProtocol, TProtocol\n"
- "try:\n"
- " from thrift.protocol import fastbinary\n"
- "except:\n"
- " fastbinary = None\n";
- }
- return hdr;
-}
-
-/**
- * Autogen'd comment
- */
-string t_py_generator::py_autogen_comment() {
- string coding;
- if (!coding_.empty()) {
- coding = "# -*- coding: " + coding_ + " -*-\n";
- }
- return coding + std::string("#\n") + "# Autogenerated by Thrift Compiler (" + THRIFT_VERSION + ")\n"
- + "#\n" + "# DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING\n" + "#\n"
- + "# options string: " + copy_options_ + "\n" + "#\n";
-}
-
-/**
- * Prints standard thrift imports
- */
-string t_py_generator::py_imports() {
- return string("from thrift.Thrift import TType, TMessageType, TException, TApplicationException");
-}
-
-/**
- * Closes the type files
- */
-void t_py_generator::close_generator() {
- // Close types file
- f_types_.close();
- f_consts_.close();
-}
-
-/**
- * Generates a typedef. This is not done in Python, types are all implicit.
- *
- * @param ttypedef The type definition
- */
-void t_py_generator::generate_typedef(t_typedef* ttypedef) {
- (void)ttypedef;
-}
-
-/**
- * Generates code for an enumerated type. Done using a class to scope
- * the values.
- *
- * @param tenum The enumeration
- */
-void t_py_generator::generate_enum(t_enum* tenum) {
- std::ostringstream to_string_mapping, from_string_mapping;
-
- f_types_ << "class " << tenum->get_name() << (gen_newstyle_ ? "(object)" : "")
- << (gen_dynamic_ ? "(" + gen_dynbaseclass_ + ")" : "") << ":" << endl;
- indent_up();
- generate_python_docstring(f_types_, tenum);
-
- to_string_mapping << indent() << "_VALUES_TO_NAMES = {" << endl;
- from_string_mapping << indent() << "_NAMES_TO_VALUES = {" << endl;
-
- vector<t_enum_value*> constants = tenum->get_constants();
- vector<t_enum_value*>::iterator c_iter;
- for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) {
- int value = (*c_iter)->get_value();
- indent(f_types_) << (*c_iter)->get_name() << " = " << value << endl;
-
- // Dictionaries to/from string names of enums
- to_string_mapping << indent() << indent() << value << ": \""
- << escape_string((*c_iter)->get_name()) << "\"," << endl;
- from_string_mapping << indent() << indent() << '"' << escape_string((*c_iter)->get_name())
- << "\": " << value << ',' << endl;
- }
- to_string_mapping << indent() << "}" << endl;
- from_string_mapping << indent() << "}" << endl;
-
- indent_down();
- f_types_ << endl;
- f_types_ << to_string_mapping.str() << endl << from_string_mapping.str() << endl;
-}
-
-/**
- * Generate a constant value
- */
-void t_py_generator::generate_const(t_const* tconst) {
- t_type* type = tconst->get_type();
- string name = tconst->get_name();
- t_const_value* value = tconst->get_value();
-
- indent(f_consts_) << name << " = " << render_const_value(type, value);
- f_consts_ << endl;
-}
-
-/**
- * Prints the value of a constant with the given type. Note that type checking
- * is NOT performed in this function as it is always run beforehand using the
- * validate_types method in main.cc
- */
-string t_py_generator::render_const_value(t_type* type, t_const_value* value) {
- type = get_true_type(type);
- std::ostringstream out;
-
- if (type->is_base_type()) {
- t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
- switch (tbase) {
- case t_base_type::TYPE_STRING:
- out << '"' << get_escaped_string(value) << '"';
- break;
- case t_base_type::TYPE_BOOL:
- out << (value->get_integer() > 0 ? "True" : "False");
- break;
- case t_base_type::TYPE_BYTE:
- case t_base_type::TYPE_I16:
- case t_base_type::TYPE_I32:
- case t_base_type::TYPE_I64:
- out << value->get_integer();
- break;
- case t_base_type::TYPE_DOUBLE:
- if (value->get_type() == t_const_value::CV_INTEGER) {
- out << value->get_integer();
- } else {
- out << value->get_double();
- }
- break;
- default:
- throw "compiler error: no const of base type " + t_base_type::t_base_name(tbase);
- }
- } else if (type->is_enum()) {
- indent(out) << value->get_integer();
- } else if (type->is_struct() || type->is_xception()) {
- out << type_name(type) << "(**{" << endl;
- indent_up();
- const vector<t_field*>& fields = ((t_struct*)type)->get_members();
- vector<t_field*>::const_iterator f_iter;
- const map<t_const_value*, t_const_value*>& val = value->get_map();
- map<t_const_value*, t_const_value*>::const_iterator v_iter;
- for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
- t_type* field_type = NULL;
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- if ((*f_iter)->get_name() == v_iter->first->get_string()) {
- field_type = (*f_iter)->get_type();
- }
- }
- if (field_type == NULL) {
- throw "type error: " + type->get_name() + " has no field " + v_iter->first->get_string();
- }
- out << indent();
- out << render_const_value(g_type_string, v_iter->first);
- out << " : ";
- out << render_const_value(field_type, v_iter->second);
- out << "," << endl;
- }
- indent_down();
- indent(out) << "})";
- } else if (type->is_map()) {
- t_type* ktype = ((t_map*)type)->get_key_type();
- t_type* vtype = ((t_map*)type)->get_val_type();
- out << "{" << endl;
- indent_up();
- const map<t_const_value*, t_const_value*>& val = value->get_map();
- map<t_const_value*, t_const_value*>::const_iterator v_iter;
- for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
- out << indent();
- out << render_const_value(ktype, v_iter->first);
- out << " : ";
- out << render_const_value(vtype, v_iter->second);
- out << "," << endl;
- }
- indent_down();
- indent(out) << "}";
- } else if (type->is_list() || type->is_set()) {
- t_type* etype;
- if (type->is_list()) {
- etype = ((t_list*)type)->get_elem_type();
- } else {
- etype = ((t_set*)type)->get_elem_type();
- }
- if (type->is_set()) {
- out << "set(";
- }
- out << "[" << endl;
- indent_up();
- const vector<t_const_value*>& val = value->get_list();
- vector<t_const_value*>::const_iterator v_iter;
- for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
- out << indent();
- out << render_const_value(etype, *v_iter);
- out << "," << endl;
- }
- indent_down();
- indent(out) << "]";
- if (type->is_set()) {
- out << ")";
- }
- } else {
- throw "CANNOT GENERATE CONSTANT FOR TYPE: " + type->get_name();
- }
-
- return out.str();
-}
-
-/**
- * Generates a python struct
- */
-void t_py_generator::generate_struct(t_struct* tstruct) {
- generate_py_struct(tstruct, false);
-}
-
-/**
- * Generates a struct definition for a thrift exception. Basically the same
- * as a struct but extends the Exception class.
- *
- * @param txception The struct definition
- */
-void t_py_generator::generate_xception(t_struct* txception) {
- generate_py_struct(txception, true);
-}
-
-/**
- * Generates a python struct
- */
-void t_py_generator::generate_py_struct(t_struct* tstruct, bool is_exception) {
- generate_py_struct_definition(f_types_, tstruct, is_exception);
-}
-
-/**
- * Generates a struct definition for a thrift data type.
- *
- * @param tstruct The struct definition
- */
-void t_py_generator::generate_py_struct_definition(ofstream& out,
- t_struct* tstruct,
- bool is_exception,
- bool is_result) {
- (void)is_result;
- const vector<t_field*>& members = tstruct->get_members();
- const vector<t_field*>& sorted_members = tstruct->get_sorted_members();
- vector<t_field*>::const_iterator m_iter;
-
- out << std::endl << "class " << tstruct->get_name();
- if (is_exception) {
- if (gen_dynamic_) {
- out << "(" << gen_dynbaseclass_exc_ << ")";
- } else {
- out << "(TException)";
- }
- } else {
- if (gen_newstyle_) {
- out << "(object)";
- } else if (gen_dynamic_) {
- out << "(" << gen_dynbaseclass_ << ")";
- }
- }
- out << ":" << endl;
- indent_up();
- generate_python_docstring(out, tstruct);
-
- out << endl;
-
- /*
- Here we generate the structure specification for the fastbinary codec.
- These specifications have the following structure:
- thrift_spec -> tuple of item_spec
- item_spec -> None | (tag, type_enum, name, spec_args, default)
- tag -> integer
- type_enum -> TType.I32 | TType.STRING | TType.STRUCT | ...
- name -> string_literal
- default -> None # Handled by __init__
- spec_args -> None # For simple types
- | (type_enum, spec_args) # Value type for list/set
- | (type_enum, spec_args, type_enum, spec_args)
- # Key and value for map
- | (class_name, spec_args_ptr) # For struct/exception
- class_name -> identifier # Basically a pointer to the class
- spec_args_ptr -> expression # just class_name.spec_args
-
- TODO(dreiss): Consider making this work for structs with negative tags.
- */
-
- if (gen_slots_) {
- indent(out) << "__slots__ = [ " << endl;
- indent_up();
- for (m_iter = sorted_members.begin(); m_iter != sorted_members.end(); ++m_iter) {
- indent(out) << "'" << (*m_iter)->get_name() << "'," << endl;
- }
- indent_down();
- indent(out) << " ]" << endl << endl;
- }
-
- // TODO(dreiss): Look into generating an empty tuple instead of None
- // for structures with no members.
- // TODO(dreiss): Test encoding of structs where some inner structs
- // don't have thrift_spec.
- if (sorted_members.empty() || (sorted_members[0]->get_key() >= 0)) {
- indent(out) << "thrift_spec = (" << endl;
- indent_up();
-
- int sorted_keys_pos = 0;
- for (m_iter = sorted_members.begin(); m_iter != sorted_members.end(); ++m_iter) {
-
- for (; sorted_keys_pos != (*m_iter)->get_key(); sorted_keys_pos++) {
- indent(out) << "None, # " << sorted_keys_pos << endl;
- }
-
- indent(out) << "(" << (*m_iter)->get_key() << ", " << type_to_enum((*m_iter)->get_type())
- << ", "
- << "'" << (*m_iter)->get_name() << "'"
- << ", " << type_to_spec_args((*m_iter)->get_type()) << ", "
- << render_field_default_value(*m_iter) << ", "
- << "),"
- << " # " << sorted_keys_pos << endl;
-
- sorted_keys_pos++;
- }
-
- indent_down();
- indent(out) << ")" << endl << endl;
- } else {
- indent(out) << "thrift_spec = None" << endl;
- }
-
- if (members.size() > 0) {
- out << indent() << "def __init__(self,";
-
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- // This fills in default values, as opposed to nulls
- out << " " << declare_argument(*m_iter) << ",";
- }
-
- out << "):" << endl;
-
- indent_up();
-
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- // Initialize fields
- t_type* type = (*m_iter)->get_type();
- if (!type->is_base_type() && !type->is_enum() && (*m_iter)->get_value() != NULL) {
- indent(out) << "if " << (*m_iter)->get_name() << " is "
- << "self.thrift_spec[" << (*m_iter)->get_key() << "][4]:" << endl;
- indent(out) << " " << (*m_iter)->get_name() << " = " << render_field_default_value(*m_iter)
- << endl;
- }
- indent(out) << "self." << (*m_iter)->get_name() << " = " << (*m_iter)->get_name() << endl;
- }
-
- indent_down();
-
- out << endl;
- }
-
- if (!gen_dynamic_) {
- generate_py_struct_reader(out, tstruct);
- generate_py_struct_writer(out, tstruct);
- }
-
- // For exceptions only, generate a __str__ method. This is
- // because when raised exceptions are printed to the console, __repr__
- // isn't used. See python bug #5882
- if (is_exception) {
- out << indent() << "def __str__(self):" << endl << indent() << " return repr(self)" << endl
- << endl;
- }
-
- out << indent() << "def __hash__(self):" << endl;
- indent_up();
- indent(out) << "value = 17" << endl; // PYTHONHASHSEED would be better, but requires Python 3.2.3
- for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
- indent(out) << "value = (value * 31) ^ hash(self." << (*m_iter)->get_name() + ")" << endl;
- }
- indent(out) << "return value" << endl;
- indent_down();
- out << endl;
-
- if (!gen_slots_) {
- // Printing utilities so that on the command line thrift
- // structs look pretty like dictionaries
- out << indent() << "def __repr__(self):" << endl << indent() << " L = ['%s=%r' % (key, value)"
- << endl << indent() << " for key, value in self.__dict__.iteritems()]" << endl
- << indent() << " return '%s(%s)' % (self.__class__.__name__, ', '.join(L))" << endl
- << endl;
-
- // Equality and inequality methods that compare by value
- out << indent() << "def __eq__(self, other):" << endl;
- indent_up();
- out << indent() << "return isinstance(other, self.__class__) and "
- "self.__dict__ == other.__dict__" << endl;
- indent_down();
- out << endl;
-
- out << indent() << "def __ne__(self, other):" << endl;
- indent_up();
-
- out << indent() << "return not (self == other)" << endl;
- indent_down();
- } else if (!gen_dynamic_) {
- // no base class available to implement __eq__ and __repr__ and __ne__ for us
- // so we must provide one that uses __slots__
- out << indent() << "def __repr__(self):" << endl << indent()
- << " L = ['%s=%r' % (key, getattr(self, key))" << endl << indent()
- << " for key in self.__slots__]" << endl << indent()
- << " return '%s(%s)' % (self.__class__.__name__, ', '.join(L))" << endl << endl;
-
- // Equality method that compares each attribute by value and type, walking __slots__
- out << indent() << "def __eq__(self, other):" << endl << indent()
- << " if not isinstance(other, self.__class__):" << endl << indent() << " return False"
- << endl << indent() << " for attr in self.__slots__:" << endl << indent()
- << " my_val = getattr(self, attr)" << endl << indent()
- << " other_val = getattr(other, attr)" << endl << indent()
- << " if my_val != other_val:" << endl << indent() << " return False" << endl
- << indent() << " return True" << endl << endl;
-
- out << indent() << "def __ne__(self, other):" << endl << indent()
- << " return not (self == other)" << endl << endl;
- }
- indent_down();
-}
-
-/**
- * Generates the read method for a struct
- */
-void t_py_generator::generate_py_struct_reader(ofstream& out, t_struct* tstruct) {
- const vector<t_field*>& fields = tstruct->get_members();
- vector<t_field*>::const_iterator f_iter;
-
- indent(out) << "def read(self, iprot):" << endl;
- indent_up();
-
- indent(out) << "if iprot.__class__ == TBinaryProtocol.TBinaryProtocolAccelerated "
- "and isinstance(iprot.trans, TTransport.CReadableTransport) "
- "and self.thrift_spec is not None "
- "and fastbinary is not None:" << endl;
- indent_up();
-
- indent(out) << "fastbinary.decode_binary(self, iprot.trans, (self.__class__, self.thrift_spec))"
- << endl;
- indent(out) << "return" << endl;
- indent_down();
-
- indent(out) << "iprot.readStructBegin()" << endl;
-
- // Loop over reading in fields
- indent(out) << "while True:" << endl;
- indent_up();
-
- // Read beginning field marker
- indent(out) << "(fname, ftype, fid) = iprot.readFieldBegin()" << endl;
-
- // Check for field STOP marker and break
- indent(out) << "if ftype == TType.STOP:" << endl;
- indent_up();
- indent(out) << "break" << endl;
- indent_down();
-
- // Switch statement on the field we are reading
- bool first = true;
-
- // Generate deserialization code for known cases
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- if (first) {
- first = false;
- out << indent() << "if ";
- } else {
- out << indent() << "elif ";
- }
- out << "fid == " << (*f_iter)->get_key() << ":" << endl;
- indent_up();
- indent(out) << "if ftype == " << type_to_enum((*f_iter)->get_type()) << ":" << endl;
- indent_up();
- generate_deserialize_field(out, *f_iter, "self.");
- indent_down();
- out << indent() << "else:" << endl << indent() << " iprot.skip(ftype)" << endl;
- indent_down();
- }
-
- // In the default case we skip the field
- out << indent() << "else:" << endl << indent() << " iprot.skip(ftype)" << endl;
-
- // Read field end marker
- indent(out) << "iprot.readFieldEnd()" << endl;
-
- indent_down();
-
- indent(out) << "iprot.readStructEnd()" << endl;
-
- indent_down();
- out << endl;
-}
-
-void t_py_generator::generate_py_struct_writer(ofstream& out, t_struct* tstruct) {
- string name = tstruct->get_name();
- const vector<t_field*>& fields = tstruct->get_sorted_members();
- vector<t_field*>::const_iterator f_iter;
-
- indent(out) << "def write(self, oprot):" << endl;
- indent_up();
-
- indent(out) << "if oprot.__class__ == TBinaryProtocol.TBinaryProtocolAccelerated "
- "and self.thrift_spec is not None "
- "and fastbinary is not None:" << endl;
- indent_up();
-
- indent(out)
- << "oprot.trans.write(fastbinary.encode_binary(self, (self.__class__, self.thrift_spec)))"
- << endl;
- indent(out) << "return" << endl;
- indent_down();
-
- indent(out) << "oprot.writeStructBegin('" << name << "')" << endl;
-
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- // Write field header
- indent(out) << "if self." << (*f_iter)->get_name() << " is not None:" << endl;
- indent_up();
- indent(out) << "oprot.writeFieldBegin("
- << "'" << (*f_iter)->get_name() << "', " << type_to_enum((*f_iter)->get_type())
- << ", " << (*f_iter)->get_key() << ")" << endl;
-
- // Write field contents
- generate_serialize_field(out, *f_iter, "self.");
-
- // Write field closer
- indent(out) << "oprot.writeFieldEnd()" << endl;
-
- indent_down();
- }
-
- // Write the struct map
- out << indent() << "oprot.writeFieldStop()" << endl << indent() << "oprot.writeStructEnd()"
- << endl;
-
- out << endl;
-
- indent_down();
- generate_py_struct_required_validator(out, tstruct);
- out << endl;
-}
-
-void t_py_generator::generate_py_struct_required_validator(ofstream& out, t_struct* tstruct) {
- indent(out) << "def validate(self):" << endl;
- indent_up();
-
- const vector<t_field*>& fields = tstruct->get_members();
-
- if (fields.size() > 0) {
- vector<t_field*>::const_iterator f_iter;
-
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- t_field* field = (*f_iter);
- if (field->get_req() == t_field::T_REQUIRED) {
- indent(out) << "if self." << field->get_name() << " is None:" << endl;
- indent(out) << " raise TProtocol.TProtocolException(message='Required field "
- << field->get_name() << " is unset!')" << endl;
- }
- }
- }
-
- indent(out) << "return" << endl << endl;
- indent_down();
-}
-
-/**
- * Generates a thrift service.
- *
- * @param tservice The service definition
- */
-void t_py_generator::generate_service(t_service* tservice) {
- string f_service_name = package_dir_ + "/" + service_name_ + ".py";
- f_service_.open(f_service_name.c_str());
-
- f_service_ << py_autogen_comment() << endl << py_imports() << endl;
-
- if (tservice->get_extends() != NULL) {
- f_service_ << "import "
- << get_real_py_module(tservice->get_extends()->get_program(), gen_twisted_) << "."
- << tservice->get_extends()->get_name() << endl;
- }
-
- f_service_ << "import logging" << endl
- << "from ttypes import *" << endl
- << "from thrift.Thrift import TProcessor" << endl
- << render_fastbinary_includes() << endl;
-
- if (gen_twisted_) {
- f_service_ << "from zope.interface import Interface, implements" << endl
- << "from twisted.internet import defer" << endl
- << "from thrift.transport import TTwisted" << endl;
- } else if (gen_tornado_) {
- f_service_ << "from tornado import gen" << endl;
- f_service_ << "from tornado import concurrent" << endl;
- f_service_ << "from thrift.transport import TTransport" << endl;
- }
-
- f_service_ << endl;
-
- // Generate the three main parts of the service
- generate_service_interface(tservice);
- generate_service_client(tservice);
- generate_service_server(tservice);
- generate_service_helpers(tservice);
- generate_service_remote(tservice);
-
- // Close service file
- f_service_.close();
-}
-
-/**
- * Generates helper functions for a service.
- *
- * @param tservice The service to generate a header definition for
- */
-void t_py_generator::generate_service_helpers(t_service* tservice) {
- vector<t_function*> functions = tservice->get_functions();
- vector<t_function*>::iterator f_iter;
-
- f_service_ << "# HELPER FUNCTIONS AND STRUCTURES" << endl;
-
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- t_struct* ts = (*f_iter)->get_arglist();
- generate_py_struct_definition(f_service_, ts, false);
- generate_py_function_helpers(*f_iter);
- }
-}
-
-/**
- * Generates a struct and helpers for a function.
- *
- * @param tfunction The function
- */
-void t_py_generator::generate_py_function_helpers(t_function* tfunction) {
- if (!tfunction->is_oneway()) {
- t_struct result(program_, tfunction->get_name() + "_result");
- t_field success(tfunction->get_returntype(), "success", 0);
- if (!tfunction->get_returntype()->is_void()) {
- result.append(&success);
- }
-
- t_struct* xs = tfunction->get_xceptions();
- const vector<t_field*>& fields = xs->get_members();
- vector<t_field*>::const_iterator f_iter;
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- result.append(*f_iter);
- }
- generate_py_struct_definition(f_service_, &result, false, true);
- }
-}
-
-/**
- * Generates a service interface definition.
- *
- * @param tservice The service to generate a header definition for
- */
-void t_py_generator::generate_service_interface(t_service* tservice) {
- string extends = "";
- string extends_if = "";
- if (tservice->get_extends() != NULL) {
- extends = type_name(tservice->get_extends());
- extends_if = "(" + extends + ".Iface)";
- } else {
- if (gen_twisted_) {
- extends_if = "(Interface)";
- } else if (gen_newstyle_ || gen_dynamic_ || gen_tornado_) {
- extends_if = "(object)";
- }
- }
-
- f_service_ << "class Iface" << extends_if << ":" << endl;
- indent_up();
- generate_python_docstring(f_service_, tservice);
- vector<t_function*> functions = tservice->get_functions();
- if (functions.empty()) {
- f_service_ << indent() << "pass" << endl;
- } else {
- vector<t_function*>::iterator f_iter;
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- f_service_ << indent() << "def " << function_signature(*f_iter, true) << ":" << endl;
- indent_up();
- generate_python_docstring(f_service_, (*f_iter));
- f_service_ << indent() << "pass" << endl << endl;
- indent_down();
- }
- }
-
- indent_down();
- f_service_ << endl;
-}
-
-/**
- * Generates a service client definition.
- *
- * @param tservice The service to generate a server for.
- */
-void t_py_generator::generate_service_client(t_service* tservice) {
- string extends = "";
- string extends_client = "";
- if (tservice->get_extends() != NULL) {
- extends = type_name(tservice->get_extends());
- if (gen_twisted_) {
- extends_client = "(" + extends + ".Client)";
- } else {
- extends_client = extends + ".Client, ";
- }
- } else {
- if (gen_twisted_ && (gen_newstyle_ || gen_dynamic_)) {
- extends_client = "(object)";
- }
- }
-
- if (gen_twisted_) {
- f_service_ << "class Client" << extends_client << ":" << endl << " implements(Iface)" << endl
- << endl;
- } else {
- f_service_ << "class Client(" << extends_client << "Iface):" << endl;
- }
- indent_up();
- generate_python_docstring(f_service_, tservice);
-
- // Constructor function
- if (gen_twisted_) {
- f_service_ << indent() << "def __init__(self, transport, oprot_factory):" << endl;
- } else if (gen_tornado_) {
- f_service_ << indent()
- << "def __init__(self, transport, iprot_factory, oprot_factory=None):" << endl;
- } else {
- f_service_ << indent() << "def __init__(self, iprot, oprot=None):" << endl;
- }
- if (extends.empty()) {
- if (gen_twisted_) {
- f_service_ << indent() << " self._transport = transport" << endl << indent()
- << " self._oprot_factory = oprot_factory" << endl << indent()
- << " self._seqid = 0" << endl << indent() << " self._reqs = {}" << endl << endl;
- } else if (gen_tornado_) {
- f_service_ << indent() << " self._transport = transport" << endl << indent()
- << " self._iprot_factory = iprot_factory" << endl << indent()
- << " self._oprot_factory = (oprot_factory if oprot_factory is not None" << endl
- << indent() << " else iprot_factory)" << endl << indent()
- << " self._seqid = 0" << endl << indent() << " self._reqs = {}" << endl
- << indent() << " self._transport.io_loop.spawn_callback(self._start_receiving)"
- << endl << endl;
- } else {
- f_service_ << indent() << " self._iprot = self._oprot = iprot" << endl << indent()
- << " if oprot is not None:" << endl << indent() << " self._oprot = oprot"
- << endl << indent() << " self._seqid = 0" << endl << endl;
- }
- } else {
- if (gen_twisted_) {
- f_service_ << indent() << " " << extends
- << ".Client.__init__(self, transport, oprot_factory)" << endl << endl;
- } else if (gen_tornado_) {
- f_service_ << indent() << " " << extends
- << ".Client.__init__(self, transport, iprot_factory, oprot_factory)" << endl
- << endl;
- } else {
- f_service_ << indent() << " " << extends << ".Client.__init__(self, iprot, oprot)" << endl
- << endl;
- }
- }
-
- if (gen_tornado_ && extends.empty()) {
- f_service_ << indent() << "@gen.engine" << endl << indent()
- << "def _start_receiving(self):" << endl << indent() << " while True:" << endl
- << indent() << " try:" << endl << indent()
- << " frame = yield self._transport.readFrame()" << endl << indent()
- << " except TTransport.TTransportException as e:" << endl << indent()
- << " for future in self._reqs.itervalues():" << endl << indent()
- << " future.set_exception(e)" << endl << indent() << " self._reqs = {}"
- << endl << indent() << " return" << endl << indent()
- << " tr = TTransport.TMemoryBuffer(frame)" << endl << indent()
- << " iprot = self._iprot_factory.getProtocol(tr)" << endl << indent()
- << " (fname, mtype, rseqid) = iprot.readMessageBegin()" << endl << indent()
- << " future = self._reqs.pop(rseqid, None)" << endl << indent()
- << " if not future:" << endl << indent()
- << " # future has already been discarded" << endl << indent()
- << " continue" << endl << indent()
- << " method = getattr(self, 'recv_' + fname)" << endl << indent()
- << " try:" << endl << indent() << " result = method(iprot, mtype, rseqid)"
- << endl << indent() << " except Exception as e:" << endl << indent()
- << " future.set_exception(e)" << endl << indent() << " else:" << endl
- << indent() << " future.set_result(result)" << endl << endl;
- }
-
- // Generate client method implementations
- vector<t_function*> functions = tservice->get_functions();
- vector<t_function*>::const_iterator f_iter;
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- t_struct* arg_struct = (*f_iter)->get_arglist();
- const vector<t_field*>& fields = arg_struct->get_members();
- vector<t_field*>::const_iterator fld_iter;
- string funname = (*f_iter)->get_name();
-
- // Open function
- indent(f_service_) << "def " << function_signature(*f_iter, false) << ":" << endl;
- indent_up();
- generate_python_docstring(f_service_, (*f_iter));
- if (gen_twisted_) {
- indent(f_service_) << "seqid = self._seqid = self._seqid + 1" << endl;
- indent(f_service_) << "self._reqs[seqid] = defer.Deferred()" << endl << endl;
- indent(f_service_) << "d = defer.maybeDeferred(self.send_" << funname;
-
- } else if (gen_tornado_) {
- indent(f_service_) << "self._seqid += 1" << endl;
- if (!(*f_iter)->is_oneway()) {
- indent(f_service_) << "future = self._reqs[self._seqid] = concurrent.Future()" << endl;
- }
- indent(f_service_) << "self.send_" << funname << "(";
-
- } else {
- indent(f_service_) << "self.send_" << funname << "(";
- }
-
- bool first = true;
- if (gen_twisted_) {
- // we need a leading comma if there are args, since it's called as maybeDeferred(funcname,
- // arg)
- first = false;
- }
- for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) {
- if (first) {
- first = false;
- } else {
- f_service_ << ", ";
- }
- f_service_ << (*fld_iter)->get_name();
- }
-
- f_service_ << ")" << endl;
-
- if (!(*f_iter)->is_oneway()) {
- if (gen_twisted_) {
- // nothing. See the next block.
- } else if (gen_tornado_) {
- indent(f_service_) << "return future" << endl;
- } else {
- f_service_ << indent();
- if (!(*f_iter)->get_returntype()->is_void()) {
- f_service_ << "return ";
- }
- f_service_ << "self.recv_" << funname << "()" << endl;
- }
- }
- indent_down();
-
- if (gen_twisted_) {
- // This block injects the body of the send_<> method for twisted (and a cb/eb pair)
- indent_up();
- indent(f_service_) << "d.addCallbacks(" << endl;
-
- indent_up();
- f_service_ << indent() << "callback=self.cb_send_" << funname << "," << endl << indent()
- << "callbackArgs=(seqid,)," << endl << indent() << "errback=self.eb_send_"
- << funname << "," << endl << indent() << "errbackArgs=(seqid,))" << endl;
- indent_down();
-
- indent(f_service_) << "return d" << endl;
- indent_down();
- f_service_ << endl;
-
- indent(f_service_) << "def cb_send_" << funname << "(self, _, seqid):" << endl;
- indent_up();
- if ((*f_iter)->is_oneway()) {
- // if one-way, fire the deferred & remove it from _reqs
- f_service_ << indent() << "d = self._reqs.pop(seqid)" << endl << indent()
- << "d.callback(None)" << endl << indent() << "return d" << endl;
- } else {
- f_service_ << indent() << "return self._reqs[seqid]" << endl;
- }
- indent_down();
- f_service_ << endl;
-
- // add an errback to fail the request if the call to send_<> raised an exception
- indent(f_service_) << "def eb_send_" << funname << "(self, f, seqid):" << endl;
- indent_up();
- f_service_ << indent() << "d = self._reqs.pop(seqid)" << endl << indent() << "d.errback(f)"
- << endl << indent() << "return d" << endl;
- indent_down();
- }
-
- f_service_ << endl;
- indent(f_service_) << "def send_" << function_signature(*f_iter, false) << ":" << endl;
- indent_up();
-
- std::string argsname = (*f_iter)->get_name() + "_args";
- std::string messageType = (*f_iter)->is_oneway() ? "TMessageType.ONEWAY" : "TMessageType.CALL";
-
- // Serialize the request header
- if (gen_twisted_ || gen_tornado_) {
- f_service_ << indent() << "oprot = self._oprot_factory.getProtocol(self._transport)" << endl
- << indent() << "oprot.writeMessageBegin('" << (*f_iter)->get_name() << "', "
- << messageType << ", self._seqid)" << endl;
- } else {
- f_service_ << indent() << "self._oprot.writeMessageBegin('" << (*f_iter)->get_name() << "', "
- << messageType << ", self._seqid)" << endl;
- }
-
- f_service_ << indent() << "args = " << argsname << "()" << endl;
-
- for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) {
- f_service_ << indent() << "args." << (*fld_iter)->get_name() << " = "
- << (*fld_iter)->get_name() << endl;
- }
-
- // Write to the stream
- if (gen_twisted_ || gen_tornado_) {
- f_service_ << indent() << "args.write(oprot)" << endl << indent() << "oprot.writeMessageEnd()"
- << endl << indent() << "oprot.trans.flush()" << endl;
- } else {
- f_service_ << indent() << "args.write(self._oprot)" << endl << indent()
- << "self._oprot.writeMessageEnd()" << endl << indent()
- << "self._oprot.trans.flush()" << endl;
- }
-
- indent_down();
-
- if (!(*f_iter)->is_oneway()) {
- std::string resultname = (*f_iter)->get_name() + "_result";
- // Open function
- f_service_ << endl;
- if (gen_twisted_ || gen_tornado_) {
- f_service_ << indent() << "def recv_" << (*f_iter)->get_name()
- << "(self, iprot, mtype, rseqid):" << endl;
- } else {
- t_struct noargs(program_);
- t_function recv_function((*f_iter)->get_returntype(),
- string("recv_") + (*f_iter)->get_name(),
- &noargs);
- f_service_ << indent() << "def " << function_signature(&recv_function) << ":" << endl;
- }
- indent_up();
-
- // TODO(mcslee): Validate message reply here, seq ids etc.
-
- if (gen_twisted_) {
- f_service_ << indent() << "d = self._reqs.pop(rseqid)" << endl;
- } else if (gen_tornado_) {
- } else {
- f_service_ << indent() << "iprot = self._iprot" << endl << indent()
- << "(fname, mtype, rseqid) = iprot.readMessageBegin()" << endl;
- }
-
- f_service_ << indent() << "if mtype == TMessageType.EXCEPTION:" << endl << indent()
- << " x = TApplicationException()" << endl;
-
- if (gen_twisted_) {
- f_service_ << indent() << " x.read(iprot)" << endl << indent()
- << " iprot.readMessageEnd()" << endl << indent() << " return d.errback(x)"
- << endl << indent() << "result = " << resultname << "()" << endl << indent()
- << "result.read(iprot)" << endl << indent() << "iprot.readMessageEnd()" << endl;
- } else {
- f_service_ << indent() << " x.read(iprot)" << endl << indent()
- << " iprot.readMessageEnd()" << endl << indent() << " raise x" << endl
- << indent() << "result = " << resultname << "()" << endl << indent()
- << "result.read(iprot)" << endl << indent() << "iprot.readMessageEnd()" << endl;
- }
-
- // Careful, only return _result if not a void function
- if (!(*f_iter)->get_returntype()->is_void()) {
- f_service_ << indent() << "if result.success is not None:" << endl;
- if (gen_twisted_) {
- f_service_ << indent() << " return d.callback(result.success)" << endl;
- } else {
- f_service_ << indent() << " return result.success" << endl;
- }
- }
-
- t_struct* xs = (*f_iter)->get_xceptions();
- const std::vector<t_field*>& xceptions = xs->get_members();
- vector<t_field*>::const_iterator x_iter;
- for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
- f_service_ << indent() << "if result." << (*x_iter)->get_name() << " is not None:" << endl;
- if (gen_twisted_) {
- f_service_ << indent() << " return d.errback(result." << (*x_iter)->get_name() << ")"
- << endl;
- } else {
- f_service_ << indent() << " raise result." << (*x_iter)->get_name() << "" << endl;
- }
- }
-
- // Careful, only return _result if not a void function
- if ((*f_iter)->get_returntype()->is_void()) {
- if (gen_twisted_) {
- f_service_ << indent() << "return d.callback(None)" << endl;
- } else {
- f_service_ << indent() << "return" << endl;
- }
- } else {
- if (gen_twisted_) {
- f_service_
- << indent()
- << "return d.errback(TApplicationException(TApplicationException.MISSING_RESULT, \""
- << (*f_iter)->get_name() << " failed: unknown result\"))" << endl;
- } else {
- f_service_ << indent()
- << "raise TApplicationException(TApplicationException.MISSING_RESULT, \""
- << (*f_iter)->get_name() << " failed: unknown result\")" << endl;
- }
- }
-
- // Close function
- indent_down();
- f_service_ << endl;
- }
- }
-
- indent_down();
- f_service_ << endl;
-}
-
-/**
- * Generates a command line tool for making remote requests
- *
- * @param tservice The service to generate a remote for.
- */
-void t_py_generator::generate_service_remote(t_service* tservice) {
- vector<t_function*> functions = tservice->get_functions();
- // Get all function from parents
- t_service* parent = tservice->get_extends();
- while (parent != NULL) {
- vector<t_function*> p_functions = parent->get_functions();
- functions.insert(functions.end(), p_functions.begin(), p_functions.end());
- parent = parent->get_extends();
- }
- vector<t_function*>::iterator f_iter;
-
- string f_remote_name = package_dir_ + "/" + service_name_ + "-remote";
- ofstream f_remote;
- f_remote.open(f_remote_name.c_str());
-
- f_remote << "#!/usr/bin/env python" << endl << py_autogen_comment() << endl << "import sys"
- << endl << "import pprint" << endl << "from urlparse import urlparse" << endl
- << "from thrift.transport import TTransport" << endl
- << "from thrift.transport import TSocket" << endl
- << "from thrift.transport import TSSLSocket" << endl
- << "from thrift.transport import THttpClient" << endl
- << "from thrift.protocol import TBinaryProtocol" << endl << endl;
-
- f_remote << "from " << module_ << " import " << service_name_ << endl << "from " << module_
- << ".ttypes import *" << endl << endl;
-
- f_remote << "if len(sys.argv) <= 1 or sys.argv[1] == '--help':" << endl << " print('')" << endl
- << " print('Usage: ' + sys.argv[0] + ' [-h host[:port]] [-u url] [-f[ramed]] [-s[sl]] "
- "function [arg1 [arg2...]]')" << endl << " print('')" << endl
- << " print('Functions:')" << endl;
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- f_remote << " print(' " << (*f_iter)->get_returntype()->get_name() << " "
- << (*f_iter)->get_name() << "(";
- t_struct* arg_struct = (*f_iter)->get_arglist();
- const std::vector<t_field*>& args = arg_struct->get_members();
- vector<t_field*>::const_iterator a_iter;
- std::vector<t_field*>::size_type num_args = args.size();
- bool first = true;
- for (std::vector<t_field*>::size_type i = 0; i < num_args; ++i) {
- if (first) {
- first = false;
- } else {
- f_remote << ", ";
- }
- f_remote << args[i]->get_type()->get_name() << " " << args[i]->get_name();
- }
- f_remote << ")')" << endl;
- }
- f_remote << " print('')" << endl << " sys.exit(0)" << endl << endl;
-
- f_remote << "pp = pprint.PrettyPrinter(indent = 2)" << endl << "host = 'localhost'" << endl
- << "port = 9090" << endl << "uri = ''" << endl << "framed = False" << endl
- << "ssl = False" << endl << "http = False" << endl << "argi = 1" << endl << endl
- << "if sys.argv[argi] == '-h':" << endl << " parts = sys.argv[argi+1].split(':')"
- << endl << " host = parts[0]" << endl << " if len(parts) > 1:" << endl
- << " port = int(parts[1])" << endl << " argi += 2" << endl << endl
- << "if sys.argv[argi] == '-u':" << endl << " url = urlparse(sys.argv[argi+1])" << endl
- << " parts = url[1].split(':')" << endl << " host = parts[0]" << endl
- << " if len(parts) > 1:" << endl << " port = int(parts[1])" << endl
- << " else:" << endl << " port = 80" << endl << " uri = url[2]" << endl
- << " if url[4]:" << endl << " uri += '?%s' % url[4]" << endl << " http = True"
- << endl << " argi += 2" << endl << endl
- << "if sys.argv[argi] == '-f' or sys.argv[argi] == '-framed':" << endl
- << " framed = True" << endl << " argi += 1" << endl << endl
- << "if sys.argv[argi] == '-s' or sys.argv[argi] == '-ssl':" << endl << " ssl = True"
- << endl << " argi += 1" << endl << endl << "cmd = sys.argv[argi]" << endl
- << "args = sys.argv[argi+1:]" << endl << endl << "if http:" << endl
- << " transport = THttpClient.THttpClient(host, port, uri)" << endl << "else:" << endl
- << " socket = TSSLSocket.TSSLSocket(host, port, validate=False) if ssl else "
- "TSocket.TSocket(host, port)" << endl << " if framed:" << endl
- << " transport = TTransport.TFramedTransport(socket)" << endl << " else:" << endl
- << " transport = TTransport.TBufferedTransport(socket)" << endl
- << "protocol = TBinaryProtocol.TBinaryProtocol(transport)" << endl
- << "client = " << service_name_ << ".Client(protocol)" << endl << "transport.open()"
- << endl << endl;
-
- // Generate the dispatch methods
- bool first = true;
-
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- if (first) {
- first = false;
- } else {
- f_remote << "el";
- }
-
- t_struct* arg_struct = (*f_iter)->get_arglist();
- const std::vector<t_field*>& args = arg_struct->get_members();
- vector<t_field*>::const_iterator a_iter;
- std::vector<t_field*>::size_type num_args = args.size();
-
- f_remote << "if cmd == '" << (*f_iter)->get_name() << "':" << endl
- << " if len(args) != " << num_args << ":" << endl << " print('"
- << (*f_iter)->get_name() << " requires " << num_args << " args')" << endl
- << " sys.exit(1)" << endl << " pp.pprint(client." << (*f_iter)->get_name() << "(";
- for (std::vector<t_field*>::size_type i = 0; i < num_args; ++i) {
- if (args[i]->get_type()->is_string()) {
- f_remote << "args[" << i << "],";
- } else {
- f_remote << "eval(args[" << i << "]),";
- }
- }
- f_remote << "))" << endl;
-
- f_remote << endl;
- }
-
- if (functions.size() > 0) {
- f_remote << "else:" << endl;
- f_remote << " print('Unrecognized method %s' % cmd)" << endl;
- f_remote << " sys.exit(1)" << endl;
- f_remote << endl;
- }
-
- f_remote << "transport.close()" << endl;
-
- // Close service file
- f_remote.close();
-
-#ifndef _MSC_VER
-
- // Make file executable, love that bitwise OR action
- chmod(f_remote_name.c_str(),
- S_IRUSR | S_IWUSR | S_IXUSR
-#ifndef _WIN32
- | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH
-#endif
- );
-
-#endif // _MSC_VER
-}
-
-/**
- * Generates a service server definition.
- *
- * @param tservice The service to generate a server for.
- */
-void t_py_generator::generate_service_server(t_service* tservice) {
- // Generate the dispatch methods
- vector<t_function*> functions = tservice->get_functions();
- vector<t_function*>::iterator f_iter;
-
- string extends = "";
- string extends_processor = "";
- if (tservice->get_extends() != NULL) {
- extends = type_name(tservice->get_extends());
- extends_processor = extends + ".Processor, ";
- }
-
- // Generate the header portion
- if (gen_twisted_) {
- f_service_ << "class Processor(" << extends_processor << "TProcessor):" << endl
- << " implements(Iface)" << endl << endl;
- } else {
- f_service_ << "class Processor(" << extends_processor << "Iface, TProcessor):" << endl;
- }
-
- indent_up();
-
- indent(f_service_) << "def __init__(self, handler):" << endl;
- indent_up();
- if (extends.empty()) {
- if (gen_twisted_) {
- f_service_ << indent() << "self._handler = Iface(handler)" << endl;
- } else {
- f_service_ << indent() << "self._handler = handler" << endl;
- }
-
- f_service_ << indent() << "self._processMap = {}" << endl;
- } else {
- if (gen_twisted_) {
- f_service_ << indent() << extends << ".Processor.__init__(self, Iface(handler))" << endl;
- } else {
- f_service_ << indent() << extends << ".Processor.__init__(self, handler)" << endl;
- }
- }
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- f_service_ << indent() << "self._processMap[\"" << (*f_iter)->get_name()
- << "\"] = Processor.process_" << (*f_iter)->get_name() << endl;
- }
- indent_down();
- f_service_ << endl;
-
- // Generate the server implementation
- f_service_ << indent() << "def process(self, iprot, oprot):" << endl;
- indent_up();
-
- f_service_ << indent() << "(name, type, seqid) = iprot.readMessageBegin()" << endl;
-
- // TODO(mcslee): validate message
-
- // HOT: dictionary function lookup
- f_service_ << indent() << "if name not in self._processMap:" << endl << indent()
- << " iprot.skip(TType.STRUCT)" << endl << indent() << " iprot.readMessageEnd()"
- << endl << indent()
- << " x = TApplicationException(TApplicationException.UNKNOWN_METHOD, 'Unknown "
- "function %s' % (name))" << endl << indent()
- << " oprot.writeMessageBegin(name, TMessageType.EXCEPTION, seqid)" << endl << indent()
- << " x.write(oprot)" << endl << indent() << " oprot.writeMessageEnd()" << endl
- << indent() << " oprot.trans.flush()" << endl;
-
- if (gen_twisted_) {
- f_service_ << indent() << " return defer.succeed(None)" << endl;
- } else {
- f_service_ << indent() << " return" << endl;
- }
-
- f_service_ << indent() << "else:" << endl;
-
- if (gen_twisted_ || gen_tornado_) {
- f_service_ << indent() << " return self._processMap[name](self, seqid, iprot, oprot)" << endl;
- } else {
- f_service_ << indent() << " self._processMap[name](self, seqid, iprot, oprot)" << endl;
-
- // Read end of args field, the T_STOP, and the struct close
- f_service_ << indent() << "return True" << endl;
- }
-
- indent_down();
- f_service_ << endl;
-
- // Generate the process subfunctions
- for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
- generate_process_function(tservice, *f_iter);
- }
-
- indent_down();
- f_service_ << endl;
-}
-
-/**
- * Generates a process function definition.
- *
- * @param tfunction The function to write a dispatcher for
- */
-void t_py_generator::generate_process_function(t_service* tservice, t_function* tfunction) {
- (void)tservice;
- // Open function
- if (gen_tornado_) {
- f_service_ << indent() << "@gen.coroutine" << endl << indent() << "def process_"
- << tfunction->get_name() << "(self, seqid, iprot, oprot):" << endl;
- } else {
- f_service_ << indent() << "def process_" << tfunction->get_name()
- << "(self, seqid, iprot, oprot):" << endl;
- }
-
- indent_up();
-
- string argsname = tfunction->get_name() + "_args";
- string resultname = tfunction->get_name() + "_result";
-
- f_service_ << indent() << "args = " << argsname << "()" << endl << indent() << "args.read(iprot)"
- << endl << indent() << "iprot.readMessageEnd()" << endl;
-
- t_struct* xs = tfunction->get_xceptions();
- const std::vector<t_field*>& xceptions = xs->get_members();
- vector<t_field*>::const_iterator x_iter;
-
- // Declare result for non oneway function
- if (!tfunction->is_oneway()) {
- f_service_ << indent() << "result = " << resultname << "()" << endl;
- }
-
- if (gen_twisted_) {
- // TODO: Propagate arbitrary exception raised by handler to client as does plain "py"
-
- // Generate the function call
- t_struct* arg_struct = tfunction->get_arglist();
- const std::vector<t_field*>& fields = arg_struct->get_members();
- vector<t_field*>::const_iterator f_iter;
-
- f_service_ << indent() << "d = defer.maybeDeferred(self._handler." << tfunction->get_name()
- << ", ";
- bool first = true;
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- if (first) {
- first = false;
- } else {
- f_service_ << ", ";
- }
- f_service_ << "args." << (*f_iter)->get_name();
- }
- f_service_ << ")" << endl;
-
- // Shortcut out here for oneway functions
- if (tfunction->is_oneway()) {
- f_service_ << indent() << "return d" << endl;
- indent_down();
- f_service_ << endl;
- return;
- }
-
- f_service_ << indent() << "d.addCallback(self.write_results_success_" << tfunction->get_name()
- << ", result, seqid, oprot)" << endl;
-
- if (xceptions.size() > 0) {
- f_service_ << indent() << "d.addErrback(self.write_results_exception_"
- << tfunction->get_name() << ", result, seqid, oprot)" << endl;
- }
-
- f_service_ << indent() << "return d" << endl;
-
- indent_down();
- f_service_ << endl;
-
- indent(f_service_) << "def write_results_success_" << tfunction->get_name()
- << "(self, success, result, seqid, oprot):" << endl;
- indent_up();
- f_service_ << indent() << "result.success = success" << endl << indent()
- << "oprot.writeMessageBegin(\"" << tfunction->get_name()
- << "\", TMessageType.REPLY, seqid)" << endl << indent() << "result.write(oprot)"
- << endl << indent() << "oprot.writeMessageEnd()" << endl << indent()
- << "oprot.trans.flush()" << endl;
- indent_down();
- f_service_ << endl;
-
- // Try block for a function with exceptions
- if (!tfunction->is_oneway() && xceptions.size() > 0) {
- indent(f_service_) << "def write_results_exception_" << tfunction->get_name()
- << "(self, error, result, seqid, oprot):" << endl;
- indent_up();
- f_service_ << indent() << "try:" << endl;
-
- // Kinda absurd
- f_service_ << indent() << " error.raiseException()" << endl;
- for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
- f_service_ << indent() << "except " << type_name((*x_iter)->get_type()) << " as "
- << (*x_iter)->get_name() << ":" << endl;
- if (!tfunction->is_oneway()) {
- indent_up();
- f_service_ << indent() << "result." << (*x_iter)->get_name() << " = "
- << (*x_iter)->get_name() << endl;
- indent_down();
- } else {
- f_service_ << indent() << "pass" << endl;
- }
- }
- f_service_ << indent() << "oprot.writeMessageBegin(\"" << tfunction->get_name()
- << "\", TMessageType.REPLY, seqid)" << endl << indent() << "result.write(oprot)"
- << endl << indent() << "oprot.writeMessageEnd()" << endl << indent()
- << "oprot.trans.flush()" << endl;
- indent_down();
- f_service_ << endl;
- }
-
- } else if (gen_tornado_) {
- /*
- if (!tfunction->is_oneway() && xceptions.size() > 0) {
- f_service_ <<
- endl <<
- indent() << "def handle_exception(xtype, value, traceback):" << endl;
-
- for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
- f_service_ <<
- indent() << " if xtype == " << type_name((*x_iter)->get_type()) << ":" << endl;
- if (!tfunction->is_oneway()) {
- f_service_ <<
- indent() << " result." << (*x_iter)->get_name() << " = value" << endl;
- }
- f_service_ <<
- indent() << " return True" << endl;
- }
-
- f_service_ <<
- endl <<
- indent() << "try:" << endl;
- indent_up();
- }
- */
-
- // TODO: Propagate arbitrary exception raised by handler to client as does plain "py"
-
- // Generate the function call
- t_struct* arg_struct = tfunction->get_arglist();
- const std::vector<t_field*>& fields = arg_struct->get_members();
- vector<t_field*>::const_iterator f_iter;
-
- if (xceptions.size() > 0) {
- f_service_ << indent() << "try:" << endl;
- indent_up();
- }
- f_service_ << indent();
- if (!tfunction->is_oneway() && !tfunction->get_returntype()->is_void()) {
- f_service_ << "result.success = ";
- }
- f_service_ << "yield gen.maybe_future(self._handler." << tfunction->get_name() << "(";
- bool first = true;
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- if (first) {
- first = false;
- } else {
- f_service_ << ", ";
- }
- f_service_ << "args." << (*f_iter)->get_name();
- }
- f_service_ << "))" << endl;
-
- if (!tfunction->is_oneway() && xceptions.size() > 0) {
- indent_down();
- for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
- f_service_ << indent() << "except " << type_name((*x_iter)->get_type()) << " as "
- << (*x_iter)->get_name() << ":" << endl;
- if (!tfunction->is_oneway()) {
- indent_up();
- f_service_ << indent() << "result." << (*x_iter)->get_name() << " = "
- << (*x_iter)->get_name() << endl;
- indent_down();
- } else {
- f_service_ << indent() << "pass" << endl;
- }
- }
- }
-
- if (!tfunction->is_oneway()) {
- f_service_ << indent() << "oprot.writeMessageBegin(\"" << tfunction->get_name()
- << "\", TMessageType.REPLY, seqid)" << endl << indent() << "result.write(oprot)"
- << endl << indent() << "oprot.writeMessageEnd()" << endl << indent()
- << "oprot.trans.flush()" << endl;
- }
-
- // Close function
- indent_down();
- f_service_ << endl;
-
- } else { // py
- // Try block for a function with exceptions
- // It also catches arbitrary exceptions raised by handler method to propagate them to the client
- f_service_ << indent() << "try:" << endl;
- indent_up();
-
- // Generate the function call
- t_struct* arg_struct = tfunction->get_arglist();
- const std::vector<t_field*>& fields = arg_struct->get_members();
- vector<t_field*>::const_iterator f_iter;
-
- f_service_ << indent();
- if (!tfunction->is_oneway() && !tfunction->get_returntype()->is_void()) {
- f_service_ << "result.success = ";
- }
- f_service_ << "self._handler." << tfunction->get_name() << "(";
- bool first = true;
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- if (first) {
- first = false;
- } else {
- f_service_ << ", ";
- }
- f_service_ << "args." << (*f_iter)->get_name();
- }
- f_service_ << ")" << endl << indent() << "msg_type = TMessageType.REPLY" << endl;
-
- indent_down();
- f_service_ << indent()
- << "except (TTransport.TTransportException, KeyboardInterrupt, SystemExit):" << endl
- << indent() << " raise" << endl;
-
- if (!tfunction->is_oneway()) {
- for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
- f_service_ << indent() << "except " << type_name((*x_iter)->get_type()) << " as "
- << (*x_iter)->get_name() << ":" << endl;
- indent_up();
- f_service_ << indent() << "msg_type = TMessageType.REPLY" << endl
- << indent() << "result." << (*x_iter)->get_name() << " = "
- << (*x_iter)->get_name() << endl;
- indent_down();
- }
-
- f_service_ << indent() << "except Exception as ex:" << endl
- << indent() << " msg_type = TMessageType.EXCEPTION" << endl
- << indent() << " logging.exception(ex)" << endl
- << indent()
- << " result = TApplicationException(TApplicationException.INTERNAL_ERROR, "
- "'Internal error')" << endl
- << indent() << "oprot.writeMessageBegin(\"" << tfunction->get_name()
- << "\", msg_type, seqid)" << endl
- << indent() << "result.write(oprot)" << endl
- << indent() << "oprot.writeMessageEnd()" << endl
- << indent() << "oprot.trans.flush()" << endl;
- } else {
- f_service_ << indent() << "except:" << endl
- << indent() << " pass" << endl;
- }
-
- // Close function
- indent_down();
- f_service_ << endl;
- }
-}
-
-/**
- * Deserializes a field of any type.
- */
-void t_py_generator::generate_deserialize_field(ofstream& out,
- t_field* tfield,
- string prefix,
- bool inclass) {
- (void)inclass;
- t_type* type = get_true_type(tfield->get_type());
-
- if (type->is_void()) {
- throw "CANNOT GENERATE DESERIALIZE CODE FOR void TYPE: " + prefix + tfield->get_name();
- }
-
- string name = prefix + tfield->get_name();
-
- if (type->is_struct() || type->is_xception()) {
- generate_deserialize_struct(out, (t_struct*)type, name);
- } else if (type->is_container()) {
- generate_deserialize_container(out, type, name);
- } else if (type->is_base_type() || type->is_enum()) {
- indent(out) << name << " = iprot.";
-
- if (type->is_base_type()) {
- t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
- switch (tbase) {
- case t_base_type::TYPE_VOID:
- throw "compiler error: cannot serialize void field in a struct: " + name;
- break;
- case t_base_type::TYPE_STRING:
- if (((t_base_type*)type)->is_binary() || !gen_utf8strings_) {
- out << "readString()";
- } else {
- out << "readString().decode('utf-8')";
- }
- break;
- case t_base_type::TYPE_BOOL:
- out << "readBool()";
- break;
- case t_base_type::TYPE_BYTE:
- out << "readByte()";
- break;
- case t_base_type::TYPE_I16:
- out << "readI16()";
- break;
- case t_base_type::TYPE_I32:
- out << "readI32()";
- break;
- case t_base_type::TYPE_I64:
- out << "readI64()";
- break;
- case t_base_type::TYPE_DOUBLE:
- out << "readDouble()";
- break;
- default:
- throw "compiler error: no Python name for base type " + t_base_type::t_base_name(tbase);
- }
- } else if (type->is_enum()) {
- out << "readI32()";
- }
- out << endl;
-
- } else {
- printf("DO NOT KNOW HOW TO DESERIALIZE FIELD '%s' TYPE '%s'\n",
- tfield->get_name().c_str(),
- type->get_name().c_str());
- }
-}
-
-/**
- * Generates an unserializer for a struct, calling read()
- */
-void t_py_generator::generate_deserialize_struct(ofstream& out, t_struct* tstruct, string prefix) {
- out << indent() << prefix << " = " << type_name(tstruct) << "()" << endl << indent() << prefix
- << ".read(iprot)" << endl;
-}
-
-/**
- * Serialize a container by writing out the header followed by
- * data and then a footer.
- */
-void t_py_generator::generate_deserialize_container(ofstream& out, t_type* ttype, string prefix) {
- string size = tmp("_size");
- string ktype = tmp("_ktype");
- string vtype = tmp("_vtype");
- string etype = tmp("_etype");
-
- t_field fsize(g_type_i32, size);
- t_field fktype(g_type_byte, ktype);
- t_field fvtype(g_type_byte, vtype);
- t_field fetype(g_type_byte, etype);
-
- // Declare variables, read header
- if (ttype->is_map()) {
- out << indent() << prefix << " = {}" << endl << indent() << "(" << ktype << ", " << vtype
- << ", " << size << " ) = iprot.readMapBegin()" << endl;
- } else if (ttype->is_set()) {
- out << indent() << prefix << " = set()" << endl << indent() << "(" << etype << ", " << size
- << ") = iprot.readSetBegin()" << endl;
- } else if (ttype->is_list()) {
- out << indent() << prefix << " = []" << endl << indent() << "(" << etype << ", " << size
- << ") = iprot.readListBegin()" << endl;
- }
-
- // For loop iterates over elements
- string i = tmp("_i");
- indent(out) << "for " << i << " in xrange(" << size << "):" << endl;
-
- indent_up();
-
- if (ttype->is_map()) {
- generate_deserialize_map_element(out, (t_map*)ttype, prefix);
- } else if (ttype->is_set()) {
- generate_deserialize_set_element(out, (t_set*)ttype, prefix);
- } else if (ttype->is_list()) {
- generate_deserialize_list_element(out, (t_list*)ttype, prefix);
- }
-
- indent_down();
-
- // Read container end
- if (ttype->is_map()) {
- indent(out) << "iprot.readMapEnd()" << endl;
- } else if (ttype->is_set()) {
- indent(out) << "iprot.readSetEnd()" << endl;
- } else if (ttype->is_list()) {
- indent(out) << "iprot.readListEnd()" << endl;
- }
-}
-
-/**
- * Generates code to deserialize a map
- */
-void t_py_generator::generate_deserialize_map_element(ofstream& out, t_map* tmap, string prefix) {
- string key = tmp("_key");
- string val = tmp("_val");
- t_field fkey(tmap->get_key_type(), key);
- t_field fval(tmap->get_val_type(), val);
-
- generate_deserialize_field(out, &fkey);
- generate_deserialize_field(out, &fval);
-
- indent(out) << prefix << "[" << key << "] = " << val << endl;
-}
-
-/**
- * Write a set element
- */
-void t_py_generator::generate_deserialize_set_element(ofstream& out, t_set* tset, string prefix) {
- string elem = tmp("_elem");
- t_field felem(tset->get_elem_type(), elem);
-
- generate_deserialize_field(out, &felem);
-
- indent(out) << prefix << ".add(" << elem << ")" << endl;
-}
-
-/**
- * Write a list element
- */
-void t_py_generator::generate_deserialize_list_element(ofstream& out,
- t_list* tlist,
- string prefix) {
- string elem = tmp("_elem");
- t_field felem(tlist->get_elem_type(), elem);
-
- generate_deserialize_field(out, &felem);
-
- indent(out) << prefix << ".append(" << elem << ")" << endl;
-}
-
-/**
- * Serializes a field of any type.
- *
- * @param tfield The field to serialize
- * @param prefix Name to prepend to field name
- */
-void t_py_generator::generate_serialize_field(ofstream& out, t_field* tfield, string prefix) {
- t_type* type = get_true_type(tfield->get_type());
-
- // Do nothing for void types
- if (type->is_void()) {
- throw "CANNOT GENERATE SERIALIZE CODE FOR void TYPE: " + prefix + tfield->get_name();
- }
-
- if (type->is_struct() || type->is_xception()) {
- generate_serialize_struct(out, (t_struct*)type, prefix + tfield->get_name());
- } else if (type->is_container()) {
- generate_serialize_container(out, type, prefix + tfield->get_name());
- } else if (type->is_base_type() || type->is_enum()) {
-
- string name = prefix + tfield->get_name();
-
- indent(out) << "oprot.";
-
- if (type->is_base_type()) {
- t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
- switch (tbase) {
- case t_base_type::TYPE_VOID:
- throw "compiler error: cannot serialize void field in a struct: " + name;
- break;
- case t_base_type::TYPE_STRING:
- if (((t_base_type*)type)->is_binary() || !gen_utf8strings_) {
- out << "writeString(" << name << ")";
- } else {
- out << "writeString(" << name << ".encode('utf-8'))";
- }
- break;
- case t_base_type::TYPE_BOOL:
- out << "writeBool(" << name << ")";
- break;
- case t_base_type::TYPE_BYTE:
- out << "writeByte(" << name << ")";
- break;
- case t_base_type::TYPE_I16:
- out << "writeI16(" << name << ")";
- break;
- case t_base_type::TYPE_I32:
- out << "writeI32(" << name << ")";
- break;
- case t_base_type::TYPE_I64:
- out << "writeI64(" << name << ")";
- break;
- case t_base_type::TYPE_DOUBLE:
- out << "writeDouble(" << name << ")";
- break;
- default:
- throw "compiler error: no Python name for base type " + t_base_type::t_base_name(tbase);
- }
- } else if (type->is_enum()) {
- out << "writeI32(" << name << ")";
- }
- out << endl;
- } else {
- printf("DO NOT KNOW HOW TO SERIALIZE FIELD '%s%s' TYPE '%s'\n",
- prefix.c_str(),
- tfield->get_name().c_str(),
- type->get_name().c_str());
- }
-}
-
-/**
- * Serializes all the members of a struct.
- *
- * @param tstruct The struct to serialize
- * @param prefix String prefix to attach to all fields
- */
-void t_py_generator::generate_serialize_struct(ofstream& out, t_struct* tstruct, string prefix) {
- (void)tstruct;
- indent(out) << prefix << ".write(oprot)" << endl;
-}
-
-void t_py_generator::generate_serialize_container(ofstream& out, t_type* ttype, string prefix) {
- if (ttype->is_map()) {
- indent(out) << "oprot.writeMapBegin(" << type_to_enum(((t_map*)ttype)->get_key_type()) << ", "
- << type_to_enum(((t_map*)ttype)->get_val_type()) << ", "
- << "len(" << prefix << "))" << endl;
- } else if (ttype->is_set()) {
- indent(out) << "oprot.writeSetBegin(" << type_to_enum(((t_set*)ttype)->get_elem_type()) << ", "
- << "len(" << prefix << "))" << endl;
- } else if (ttype->is_list()) {
- indent(out) << "oprot.writeListBegin(" << type_to_enum(((t_list*)ttype)->get_elem_type())
- << ", "
- << "len(" << prefix << "))" << endl;
- }
-
- if (ttype->is_map()) {
- string kiter = tmp("kiter");
- string viter = tmp("viter");
- indent(out) << "for " << kiter << "," << viter << " in " << prefix << ".items():" << endl;
- indent_up();
- generate_serialize_map_element(out, (t_map*)ttype, kiter, viter);
- indent_down();
- } else if (ttype->is_set()) {
- string iter = tmp("iter");
- indent(out) << "for " << iter << " in " << prefix << ":" << endl;
- indent_up();
- generate_serialize_set_element(out, (t_set*)ttype, iter);
- indent_down();
- } else if (ttype->is_list()) {
- string iter = tmp("iter");
- indent(out) << "for " << iter << " in " << prefix << ":" << endl;
- indent_up();
- generate_serialize_list_element(out, (t_list*)ttype, iter);
- indent_down();
- }
-
- if (ttype->is_map()) {
- indent(out) << "oprot.writeMapEnd()" << endl;
- } else if (ttype->is_set()) {
- indent(out) << "oprot.writeSetEnd()" << endl;
- } else if (ttype->is_list()) {
- indent(out) << "oprot.writeListEnd()" << endl;
- }
-}
-
-/**
- * Serializes the members of a map.
- *
- */
-void t_py_generator::generate_serialize_map_element(ofstream& out,
- t_map* tmap,
- string kiter,
- string viter) {
- t_field kfield(tmap->get_key_type(), kiter);
- generate_serialize_field(out, &kfield, "");
-
- t_field vfield(tmap->get_val_type(), viter);
- generate_serialize_field(out, &vfield, "");
-}
-
-/**
- * Serializes the members of a set.
- */
-void t_py_generator::generate_serialize_set_element(ofstream& out, t_set* tset, string iter) {
- t_field efield(tset->get_elem_type(), iter);
- generate_serialize_field(out, &efield, "");
-}
-
-/**
- * Serializes the members of a list.
- */
-void t_py_generator::generate_serialize_list_element(ofstream& out, t_list* tlist, string iter) {
- t_field efield(tlist->get_elem_type(), iter);
- generate_serialize_field(out, &efield, "");
-}
-
-/**
- * Generates the docstring for a given struct.
- */
-void t_py_generator::generate_python_docstring(ofstream& out, t_struct* tstruct) {
- generate_python_docstring(out, tstruct, tstruct, "Attributes");
-}
-
-/**
- * Generates the docstring for a given function.
- */
-void t_py_generator::generate_python_docstring(ofstream& out, t_function* tfunction) {
- generate_python_docstring(out, tfunction, tfunction->get_arglist(), "Parameters");
-}
-
-/**
- * Generates the docstring for a struct or function.
- */
-void t_py_generator::generate_python_docstring(ofstream& out,
- t_doc* tdoc,
- t_struct* tstruct,
- const char* subheader) {
- bool has_doc = false;
- stringstream ss;
- if (tdoc->has_doc()) {
- has_doc = true;
- ss << tdoc->get_doc();
- }
-
- const vector<t_field*>& fields = tstruct->get_members();
- if (fields.size() > 0) {
- if (has_doc) {
- ss << endl;
- }
- has_doc = true;
- ss << subheader << ":\n";
- vector<t_field*>::const_iterator p_iter;
- for (p_iter = fields.begin(); p_iter != fields.end(); ++p_iter) {
- t_field* p = *p_iter;
- ss << " - " << p->get_name();
- if (p->has_doc()) {
- ss << ": " << p->get_doc();
- } else {
- ss << endl;
- }
- }
- }
-
- if (has_doc) {
- generate_docstring_comment(out, "\"\"\"\n", "", ss.str(), "\"\"\"\n");
- }
-}
-
-/**
- * Generates the docstring for a generic object.
- */
-void t_py_generator::generate_python_docstring(ofstream& out, t_doc* tdoc) {
- if (tdoc->has_doc()) {
- generate_docstring_comment(out, "\"\"\"\n", "", tdoc->get_doc(), "\"\"\"\n");
- }
-}
-
-/**
- * Declares an argument, which may include initialization as necessary.
- *
- * @param tfield The field
- */
-string t_py_generator::declare_argument(t_field* tfield) {
- std::ostringstream result;
- result << tfield->get_name() << "=";
- if (tfield->get_value() != NULL) {
- result << "thrift_spec[" << tfield->get_key() << "][4]";
- } else {
- result << "None";
- }
- return result.str();
-}
-
-/**
- * Renders a field default value, returns None otherwise.
- *
- * @param tfield The field
- */
-string t_py_generator::render_field_default_value(t_field* tfield) {
- t_type* type = get_true_type(tfield->get_type());
- if (tfield->get_value() != NULL) {
- return render_const_value(type, tfield->get_value());
- } else {
- return "None";
- }
-}
-
-/**
- * Renders a function signature of the form 'type name(args)'
- *
- * @param tfunction Function definition
- * @return String of rendered function definition
- */
-string t_py_generator::function_signature(t_function* tfunction, bool interface) {
- vector<string> pre;
- vector<string> post;
- string signature = tfunction->get_name() + "(";
-
- if (!(gen_twisted_ && interface)) {
- pre.push_back("self");
- }
-
- signature += argument_list(tfunction->get_arglist(), &pre, &post) + ")";
- return signature;
-}
-
-/**
- * Renders a field list
- */
-string t_py_generator::argument_list(t_struct* tstruct, vector<string>* pre, vector<string>* post) {
- string result = "";
-
- const vector<t_field*>& fields = tstruct->get_members();
- vector<t_field*>::const_iterator f_iter;
- vector<string>::const_iterator s_iter;
- bool first = true;
- if (pre) {
- for (s_iter = pre->begin(); s_iter != pre->end(); ++s_iter) {
- if (first) {
- first = false;
- } else {
- result += ", ";
- }
- result += *s_iter;
- }
- }
- for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
- if (first) {
- first = false;
- } else {
- result += ", ";
- }
- result += (*f_iter)->get_name();
- }
- if (post) {
- for (s_iter = post->begin(); s_iter != post->end(); ++s_iter) {
- if (first) {
- first = false;
- } else {
- result += ", ";
- }
- result += *s_iter;
- }
- }
- return result;
-}
-
-string t_py_generator::type_name(t_type* ttype) {
- while (ttype->is_typedef()) {
- ttype = ((t_typedef*)ttype)->get_type();
- }
-
- t_program* program = ttype->get_program();
- if (ttype->is_service()) {
- return get_real_py_module(program, gen_twisted_) + "." + ttype->get_name();
- }
- if (program != NULL && program != program_) {
- return get_real_py_module(program, gen_twisted_) + ".ttypes." + ttype->get_name();
- }
- return ttype->get_name();
-}
-
-/**
- * Converts the parse type to a Python tyoe
- */
-string t_py_generator::type_to_enum(t_type* type) {
- type = get_true_type(type);
-
- if (type->is_base_type()) {
- t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
- switch (tbase) {
- case t_base_type::TYPE_VOID:
- throw "NO T_VOID CONSTRUCT";
- case t_base_type::TYPE_STRING:
- return "TType.STRING";
- case t_base_type::TYPE_BOOL:
- return "TType.BOOL";
- case t_base_type::TYPE_BYTE:
- return "TType.BYTE";
- case t_base_type::TYPE_I16:
- return "TType.I16";
- case t_base_type::TYPE_I32:
- return "TType.I32";
- case t_base_type::TYPE_I64:
- return "TType.I64";
- case t_base_type::TYPE_DOUBLE:
- return "TType.DOUBLE";
- }
- } else if (type->is_enum()) {
- return "TType.I32";
- } else if (type->is_struct() || type->is_xception()) {
- return "TType.STRUCT";
- } else if (type->is_map()) {
- return "TType.MAP";
- } else if (type->is_set()) {
- return "TType.SET";
- } else if (type->is_list()) {
- return "TType.LIST";
- }
-
- throw "INVALID TYPE IN type_to_enum: " + type->get_name();
-}
-
-/** See the comment inside generate_py_struct_definition for what this is. */
-string t_py_generator::type_to_spec_args(t_type* ttype) {
- while (ttype->is_typedef()) {
- ttype = ((t_typedef*)ttype)->get_type();
- }
-
- if (ttype->is_base_type() || ttype->is_enum()) {
- return "None";
- } else if (ttype->is_struct() || ttype->is_xception()) {
- return "(" + type_name(ttype) + ", " + type_name(ttype) + ".thrift_spec)";
- } else if (ttype->is_map()) {
- return "(" + type_to_enum(((t_map*)ttype)->get_key_type()) + ","
- + type_to_spec_args(((t_map*)ttype)->get_key_type()) + ","
- + type_to_enum(((t_map*)ttype)->get_val_type()) + ","
- + type_to_spec_args(((t_map*)ttype)->get_val_type()) + ")";
-
- } else if (ttype->is_set()) {
- return "(" + type_to_enum(((t_set*)ttype)->get_elem_type()) + ","
- + type_to_spec_args(((t_set*)ttype)->get_elem_type()) + ")";
-
- } else if (ttype->is_list()) {
- return "(" + type_to_enum(((t_list*)ttype)->get_elem_type()) + ","
- + type_to_spec_args(((t_list*)ttype)->get_elem_type()) + ")";
- }
-
- throw "INVALID TYPE IN type_to_spec_args: " + ttype->get_name();
-}
-
-THRIFT_REGISTER_GENERATOR(
- py,
- "Python",
- " new_style: Generate new-style classes.\n"
- " twisted: Generate Twisted-friendly RPC services.\n"
- " tornado: Generate code for use with Tornado.\n"
- " utf8strings: Encode/decode strings using utf8 in the generated code.\n"
- " coding=CODING: Add file encoding declare in generated file.\n"
- " slots: Generate code using slots for instance members.\n"
- " dynamic: Generate dynamic code, less code generated but slower.\n"
- " dynbase=CLS Derive generated classes from class CLS instead of TBase.\n"
- " dynexc=CLS Derive generated exceptions from CLS instead of TExceptionBase.\n"
- " dynimport='from foo.bar import CLS'\n"
- " Add an import line to generated code to find the dynbase class.\n")