Thrift now a TLP - INFRA-31160.1.x

git-svn-id: https://svn.apache.org/repos/asf/thrift/branches/0.1.x@1028168 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 354 insertions, 0 deletions

diff --git a/compiler/cpp/src/generate/t_xsd_generator.cc b/compiler/cpp/src/generate/t_xsd_generator.cc
new file mode 100644
index 000000000..729a91aed
--- /dev/null
+++ b/compiler/cpp/src/generate/t_xsd_generator.cc
@@ -0,0 +1,354 @@
+/*
+ * 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 <fstream>
+#include <iostream>
+#include <sstream>
+
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sstream>
+#include "t_generator.h"
+#include "platform.h"
+using namespace std;
+
+
+/**
+ * XSD generator, creates an XSD for the base types etc.
+ *
+ */
+class t_xsd_generator : public t_generator {
+ public:
+  t_xsd_generator(
+      t_program* program,
+      const std::map<std::string, std::string>& parsed_options,
+      const std::string& option_string)
+    : t_generator(program)
+  {
+    out_dir_base_ = "gen-xsd";
+  }
+
+  virtual ~t_xsd_generator() {}
+
+  /**
+   * 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_service(t_service* tservice);
+  void generate_struct(t_struct* tstruct);
+
+ private:
+
+  void generate_element(std::ostream& out, std::string name, t_type* ttype, t_struct* attrs=NULL, bool optional=false, bool nillable=false, bool list_element=false);
+
+  std::string ns(std::string in, std::string ns) {
+    return ns + ":" + in;
+  }
+
+  std::string xsd(std::string in) {
+    return ns(in, "xsd");
+  }
+
+  std::string type_name(t_type* ttype);
+  std::string base_type_name(t_base_type::t_base tbase);
+
+  /**
+   * Output xsd/php file
+   */
+  std::ofstream f_xsd_;
+  std::ofstream f_php_;
+
+  /**
+   * Output string stream
+   */
+  std::ostringstream s_xsd_types_;
+
+};
+
+
+void t_xsd_generator::init_generator() {
+  // Make output directory
+  MKDIR(get_out_dir().c_str());
+
+  // Make output file
+  string f_php_name = get_out_dir()+program_->get_name()+"_xsd.php";
+  f_php_.open(f_php_name.c_str());
+
+  f_php_ <<
+    "<?php" << endl;
+
+}
+
+void t_xsd_generator::close_generator() {
+  f_php_ << "?>" << endl;
+  f_php_.close();
+}
+
+void t_xsd_generator::generate_typedef(t_typedef* ttypedef) {
+  indent(s_xsd_types_) <<
+    "<xsd:simpleType name=\"" << ttypedef->get_name() << "\">" << endl;
+  indent_up();
+  if (ttypedef->get_type()->is_string() && ((t_base_type*)ttypedef->get_type())->is_string_enum()) {
+    indent(s_xsd_types_) <<
+      "<xsd:restriction base=\"" << type_name(ttypedef->get_type()) << "\">" << endl;
+    indent_up();
+    const vector<string>& values = ((t_base_type*)ttypedef->get_type())->get_string_enum_vals();
+    vector<string>::const_iterator v_iter;
+    for (v_iter = values.begin(); v_iter != values.end(); ++v_iter) {
+      indent(s_xsd_types_) <<
+        "<xsd:enumeration value=\"" << (*v_iter) << "\" />" << endl;
+    }
+    indent_down();
+    indent(s_xsd_types_) <<
+      "</xsd:restriction>" << endl;
+  } else {
+    indent(s_xsd_types_) <<
+      "<xsd:restriction base=\"" << type_name(ttypedef->get_type()) << "\" />" << endl;
+  }
+  indent_down();
+  indent(s_xsd_types_) <<
+    "</xsd:simpleType>" << endl << endl;
+}
+
+void t_xsd_generator::generate_struct(t_struct* tstruct) {
+  vector<t_field*>::const_iterator m_iter;
+  const vector<t_field*>& members = tstruct->get_members();
+  bool xsd_all = tstruct->get_xsd_all();
+
+  indent(s_xsd_types_) << "<xsd:complexType name=\"" << tstruct->get_name() << "\">" << endl;
+  indent_up();
+  if (xsd_all) {
+    indent(s_xsd_types_) << "<xsd:all>" << endl;
+  } else {
+    indent(s_xsd_types_) << "<xsd:sequence>" << endl;
+  }
+  indent_up();
+
+  for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
+    generate_element(s_xsd_types_, (*m_iter)->get_name(), (*m_iter)->get_type(), (*m_iter)->get_xsd_attrs(), (*m_iter)->get_xsd_optional() || xsd_all, (*m_iter)->get_xsd_nillable());
+  }
+
+  indent_down();
+  if (xsd_all) {
+    indent(s_xsd_types_) << "</xsd:all>" << endl;
+  } else {
+    indent(s_xsd_types_) << "</xsd:sequence>" << endl;
+  }
+  indent_down();
+  indent(s_xsd_types_) <<
+    "</xsd:complexType>" << endl <<
+    endl;
+}
+
+void t_xsd_generator::generate_element(ostream& out,
+                                       string name,
+                                       t_type* ttype,
+                                       t_struct* attrs,
+                                       bool optional,
+                                       bool nillable,
+                                       bool list_element) {
+  string sminOccurs = (optional || list_element) ? " minOccurs=\"0\"" : "";
+  string smaxOccurs = list_element ? " maxOccurs=\"unbounded\"" : "";
+  string soptional = sminOccurs + smaxOccurs;
+  string snillable = nillable ? " nillable=\"true\"" : "";
+
+  if (ttype->is_void() || ttype->is_list()) {
+    indent(out) <<
+      "<xsd:element name=\"" << name << "\"" << soptional << snillable << ">" << endl;
+    indent_up();
+    if (attrs == NULL && ttype->is_void()) {
+      indent(out) <<
+        "<xsd:complexType />" << endl;
+    } else {
+      indent(out) <<
+        "<xsd:complexType>" << endl;
+      indent_up();
+      if (ttype->is_list()) {
+        indent(out) << "<xsd:sequence minOccurs=\"0\" maxOccurs=\"unbounded\">" << endl;
+        indent_up();
+        string subname;
+        t_type* subtype = ((t_list*)ttype)->get_elem_type();
+        if (subtype->is_base_type() || subtype->is_container()) {
+          subname = name + "_elt";
+        } else {
+          subname = type_name(subtype);
+        }
+        f_php_ << "$GLOBALS['" << program_->get_name() << "_xsd_elt_" << name << "'] = '" << subname << "';" << endl;
+        generate_element(out, subname, subtype, NULL, false, false, true);
+        indent_down();
+        indent(out) << "</xsd:sequence>" << endl;
+        indent(out) << "<xsd:attribute name=\"list\" type=\"xsd:boolean\" />" << endl;
+      }
+      if (attrs != NULL) {
+        const vector<t_field*>& members = attrs->get_members();
+        vector<t_field*>::const_iterator a_iter;
+        for (a_iter = members.begin(); a_iter != members.end(); ++a_iter) {
+          indent(out) << "<xsd:attribute name=\"" << (*a_iter)->get_name() << "\" type=\"" << type_name((*a_iter)->get_type()) << "\" />" << endl;
+        }
+      }
+      indent_down();
+      indent(out) <<
+        "</xsd:complexType>" << endl;
+    }
+    indent_down();
+    indent(out) <<
+      "</xsd:element>" << endl;
+  } else {
+    if (attrs == NULL) {
+      indent(out) <<
+        "<xsd:element name=\"" << name << "\"" << " type=\"" << type_name(ttype) << "\"" << soptional << snillable << " />" << endl;
+    } else {
+      // Wow, all this work for a SIMPLE TYPE with attributes?!?!?!
+      indent(out) << "<xsd:element name=\"" << name << "\"" << soptional << snillable << ">" << endl;
+      indent_up();
+      indent(out) << "<xsd:complexType>" << endl;
+      indent_up();
+      indent(out) << "<xsd:complexContent>" << endl;
+      indent_up();
+      indent(out) << "<xsd:extension base=\"" << type_name(ttype) << "\">" << endl;
+      indent_up();
+      const vector<t_field*>& members = attrs->get_members();
+      vector<t_field*>::const_iterator a_iter;
+      for (a_iter = members.begin(); a_iter != members.end(); ++a_iter) {
+        indent(out) << "<xsd:attribute name=\"" << (*a_iter)->get_name() << "\" type=\"" << type_name((*a_iter)->get_type()) << "\" />" << endl;
+      }
+      indent_down();
+      indent(out) << "</xsd:extension>" << endl;
+      indent_down();
+      indent(out) << "</xsd:complexContent>" << endl;
+      indent_down();
+      indent(out) << "</xsd:complexType>" << endl;
+      indent_down();
+      indent(out) << "</xsd:element>" << endl;
+    }
+  }
+}
+
+void t_xsd_generator::generate_service(t_service* tservice) {
+  // Make output file
+  string f_xsd_name = get_out_dir()+tservice->get_name()+".xsd";
+  f_xsd_.open(f_xsd_name.c_str());
+
+  string ns = program_->get_namespace("xsd");
+  if (ns.size() > 0) {
+    ns = " targetNamespace=\"" + ns + "\" xmlns=\"" + ns + "\" " +
+      "elementFormDefault=\"qualified\"";
+  }
+
+  // Print the XSD header
+  f_xsd_ <<
+    "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>" << endl <<
+    "<xsd:schema xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\"" << ns << ">" << endl <<
+    endl <<
+    "<!-- Yo yo yo, this XSD woz be generated by Thrift. -->" << endl <<
+    endl;
+
+  // Print out the type definitions
+  indent(f_xsd_) << s_xsd_types_.str();
+
+  // Keep a list of all the possible exceptions that might get thrown
+  map<string, t_struct*> all_xceptions;
+
+  // List the elements that you might actually get
+  vector<t_function*> functions = tservice->get_functions();
+  vector<t_function*>::iterator f_iter;
+  for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
+    string elemname = (*f_iter)->get_name() + "_response";
+    t_type* returntype = (*f_iter)->get_returntype();
+    generate_element(f_xsd_, elemname, returntype);
+    f_xsd_ << 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) {
+      all_xceptions[(*x_iter)->get_name()] = (t_struct*)((*x_iter)->get_type());
+    }
+  }
+
+  map<string, t_struct*>::iterator ax_iter;
+  for (ax_iter = all_xceptions.begin(); ax_iter != all_xceptions.end(); ++ax_iter) {
+    generate_element(f_xsd_, ax_iter->first, ax_iter->second);
+  }
+
+  // Close the XSD document
+  f_xsd_ << endl << "</xsd:schema>" << endl;
+  f_xsd_.close();
+}
+
+string t_xsd_generator::type_name(t_type* ttype) {
+  if (ttype->is_typedef()) {
+    return ttype->get_name();
+  }
+
+  if (ttype->is_base_type()) {
+    return xsd(base_type_name(((t_base_type*)ttype)->get_base()));
+  }
+
+  if (ttype->is_enum()) {
+    return xsd("int");
+  }
+
+  if (ttype->is_struct() || ttype->is_xception()) {
+    return ttype->get_name();
+  }
+
+  return "container";
+}
+
+/**
+ * Returns the XSD type that corresponds to the thrift type.
+ *
+ * @param tbase The base type
+ * @return Explicit XSD type, i.e. xsd:string
+ */
+string t_xsd_generator::base_type_name(t_base_type::t_base tbase) {
+  switch (tbase) {
+  case t_base_type::TYPE_VOID:
+    return "void";
+  case t_base_type::TYPE_STRING:
+    return "string";
+  case t_base_type::TYPE_BOOL:
+    return "boolean";
+  case t_base_type::TYPE_BYTE:
+    return "byte";
+  case t_base_type::TYPE_I16:
+    return "short";
+  case t_base_type::TYPE_I32:
+    return "int";
+  case t_base_type::TYPE_I64:
+    return "long";
+  case t_base_type::TYPE_DOUBLE:
+    return "decimal";
+  default:
+    throw "compiler error: no C++ base type name for base type " + t_base_type::t_base_name(tbase);
+  }
+}
+
+THRIFT_REGISTER_GENERATOR(xsd, "XSD", "");