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      1 // Protocol Buffers - Google's data interchange format
      2 // Copyright 2008 Google Inc.  All rights reserved.
      3 // http://code.google.com/p/protobuf/
      4 //
      5 // Redistribution and use in source and binary forms, with or without
      6 // modification, are permitted provided that the following conditions are
      7 // met:
      8 //
      9 //     * Redistributions of source code must retain the above copyright
     10 // notice, this list of conditions and the following disclaimer.
     11 //     * Redistributions in binary form must reproduce the above
     12 // copyright notice, this list of conditions and the following disclaimer
     13 // in the documentation and/or other materials provided with the
     14 // distribution.
     15 //     * Neither the name of Google Inc. nor the names of its
     16 // contributors may be used to endorse or promote products derived from
     17 // this software without specific prior written permission.
     18 //
     19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30 
     31 // Author: kenton (at) google.com (Kenton Varda)
     32 //  Based on original Protocol Buffers design by
     33 //  Sanjay Ghemawat, Jeff Dean, and others.
     34 
     35 #ifndef GOOGLE_PROTOBUF_COMPILER_JAVA_FILE_H__
     36 #define GOOGLE_PROTOBUF_COMPILER_JAVA_FILE_H__
     37 
     38 #include <string>
     39 #include <vector>
     40 #include <google/protobuf/stubs/common.h>
     41 
     42 namespace google {
     43 namespace protobuf {
     44   class FileDescriptor;        // descriptor.h
     45   namespace io {
     46     class Printer;             // printer.h
     47   }
     48   namespace compiler {
     49     class OutputDirectory;     // code_generator.h
     50   }
     51 }
     52 
     53 namespace protobuf {
     54 namespace compiler {
     55 namespace java {
     56 
     57 class FileGenerator {
     58  public:
     59   explicit FileGenerator(const FileDescriptor* file);
     60   ~FileGenerator();
     61 
     62   // Checks for problems that would otherwise lead to cryptic compile errors.
     63   // Returns true if there are no problems, or writes an error description to
     64   // the given string and returns false otherwise.
     65   bool Validate(string* error);
     66 
     67   void Generate(io::Printer* printer);
     68 
     69   // If we aren't putting everything into one file, this will write all the
     70   // files other than the outer file (i.e. one for each message, enum, and
     71   // service type).
     72   void GenerateSiblings(const string& package_dir,
     73                         OutputDirectory* output_directory,
     74                         vector<string>* file_list);
     75 
     76   const string& java_package() { return java_package_; }
     77   const string& classname()    { return classname_;    }
     78 
     79  private:
     80   // Returns whether the dependency should be included in the output file.
     81   // Always returns true for opensource, but used internally at Google to help
     82   // improve compatibility with version 1 of protocol buffers.
     83   bool ShouldIncludeDependency(const FileDescriptor* descriptor);
     84 
     85   const FileDescriptor* file_;
     86   string java_package_;
     87   string classname_;
     88 
     89   void GenerateEmbeddedDescriptor(io::Printer* printer);
     90 
     91   GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(FileGenerator);
     92 };
     93 
     94 }  // namespace java
     95 }  // namespace compiler
     96 }  // namespace protobuf
     97 
     98 }  // namespace google
     99 #endif  // GOOGLE_PROTOBUF_COMPILER_JAVA_FILE_H__
    100