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,
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25// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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29// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31// Author: kenton@google.com (Kenton Varda)
32//  Based on original Protocol Buffers design by
33//  Sanjay Ghemawat, Jeff Dean, and others.
34
35#include <google/protobuf/compiler/java/java_generator.h>
36#include <google/protobuf/compiler/java/java_file.h>
37#include <google/protobuf/compiler/java/java_helpers.h>
38#include <google/protobuf/io/printer.h>
39#include <google/protobuf/io/zero_copy_stream.h>
40#include <google/protobuf/descriptor.pb.h>
41#include <google/protobuf/stubs/strutil.h>
42
43namespace google {
44namespace protobuf {
45namespace compiler {
46namespace java {
47
48
49JavaGenerator::JavaGenerator() {}
50JavaGenerator::~JavaGenerator() {}
51
52bool JavaGenerator::Generate(const FileDescriptor* file,
53                             const string& parameter,
54                             OutputDirectory* output_directory,
55                             string* error) const {
56  vector<pair<string, string> > options;
57  ParseGeneratorParameter(parameter, &options);
58
59  // -----------------------------------------------------------------
60  // parse generator options
61
62  // Name a file where we will write a list of generated file names, one
63  // per line.
64  string output_list_file;
65
66  for (int i = 0; i < options.size(); i++) {
67    if (options[i].first == "output_list_file") {
68      output_list_file = options[i].second;
69    } else {
70      *error = "Unknown generator option: " + options[i].first;
71      return false;
72    }
73  }
74
75
76  // -----------------------------------------------------------------
77
78
79  FileGenerator file_generator(file);
80  if (!file_generator.Validate(error)) {
81    return false;
82  }
83
84  string package_dir =
85    StringReplace(file_generator.java_package(), ".", "/", true);
86  if (!package_dir.empty()) package_dir += "/";
87
88  vector<string> all_files;
89
90  string java_filename = package_dir;
91  java_filename += file_generator.classname();
92  java_filename += ".java";
93  all_files.push_back(java_filename);
94
95  // Generate main java file.
96  scoped_ptr<io::ZeroCopyOutputStream> output(
97    output_directory->Open(java_filename));
98  io::Printer printer(output.get(), '$');
99  file_generator.Generate(&printer);
100
101  // Generate sibling files.
102  file_generator.GenerateSiblings(package_dir, output_directory, &all_files);
103
104  // Generate output list if requested.
105  if (!output_list_file.empty()) {
106    // Generate output list.  This is just a simple text file placed in a
107    // deterministic location which lists the .java files being generated.
108    scoped_ptr<io::ZeroCopyOutputStream> srclist_raw_output(
109      output_directory->Open(output_list_file));
110    io::Printer srclist_printer(srclist_raw_output.get(), '$');
111    for (int i = 0; i < all_files.size(); i++) {
112      srclist_printer.Print("$filename$\n", "filename", all_files[i]);
113    }
114  }
115
116  return true;
117}
118
119}  // namespace java
120}  // namespace compiler
121}  // namespace protobuf
122}  // namespace google
123