Yao Chen | d54f9dd | 2017-10-17 17:37:48 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017, The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "Collation.h" |
| 18 | |
| 19 | #include <stdio.h> |
| 20 | #include <map> |
| 21 | |
| 22 | namespace android { |
| 23 | namespace stats_log_api_gen { |
| 24 | |
| 25 | using google::protobuf::FieldDescriptor; |
| 26 | using google::protobuf::FileDescriptor; |
| 27 | using google::protobuf::SourceLocation; |
| 28 | using std::map; |
| 29 | |
| 30 | |
| 31 | // |
| 32 | // AtomDecl class |
| 33 | // |
| 34 | |
| 35 | AtomDecl::AtomDecl() |
| 36 | :code(0), |
| 37 | name() |
| 38 | { |
| 39 | } |
| 40 | |
| 41 | AtomDecl::AtomDecl(const AtomDecl& that) |
| 42 | :code(that.code), |
| 43 | name(that.name), |
| 44 | message(that.message), |
| 45 | fields(that.fields) |
| 46 | { |
| 47 | } |
| 48 | |
| 49 | AtomDecl::AtomDecl(int c, const string& n, const string& m) |
| 50 | :code(c), |
| 51 | name(n), |
| 52 | message(m) |
| 53 | { |
| 54 | } |
| 55 | |
| 56 | AtomDecl::~AtomDecl() |
| 57 | { |
| 58 | } |
| 59 | |
| 60 | |
| 61 | /** |
| 62 | * Print an error message for a FieldDescriptor, including the file name and line number. |
| 63 | */ |
| 64 | static void |
| 65 | print_error(const FieldDescriptor* field, const char* format, ...) |
| 66 | { |
| 67 | const Descriptor* message = field->containing_type(); |
| 68 | const FileDescriptor* file = message->file(); |
| 69 | |
| 70 | SourceLocation loc; |
| 71 | if (field->GetSourceLocation(&loc)) { |
| 72 | // TODO: this will work if we can figure out how to pass --include_source_info to protoc |
| 73 | fprintf(stderr, "%s:%d: ", file->name().c_str(), loc.start_line); |
| 74 | } else { |
| 75 | fprintf(stderr, "%s: ", file->name().c_str()); |
| 76 | } |
| 77 | va_list args; |
| 78 | va_start(args, format); |
| 79 | vfprintf(stderr, format, args); |
| 80 | va_end (args); |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * Convert a protobuf type into a java type. |
| 85 | */ |
| 86 | static java_type_t |
| 87 | java_type(const FieldDescriptor* field) |
| 88 | { |
| 89 | int protoType = field->type(); |
| 90 | switch (protoType) { |
| 91 | case FieldDescriptor::TYPE_DOUBLE: |
| 92 | return JAVA_TYPE_DOUBLE; |
| 93 | case FieldDescriptor::TYPE_FLOAT: |
| 94 | return JAVA_TYPE_FLOAT; |
| 95 | case FieldDescriptor::TYPE_INT64: |
| 96 | return JAVA_TYPE_LONG; |
| 97 | case FieldDescriptor::TYPE_UINT64: |
| 98 | return JAVA_TYPE_LONG; |
| 99 | case FieldDescriptor::TYPE_INT32: |
| 100 | return JAVA_TYPE_INT; |
| 101 | case FieldDescriptor::TYPE_FIXED64: |
| 102 | return JAVA_TYPE_LONG; |
| 103 | case FieldDescriptor::TYPE_FIXED32: |
| 104 | return JAVA_TYPE_INT; |
| 105 | case FieldDescriptor::TYPE_BOOL: |
| 106 | return JAVA_TYPE_BOOLEAN; |
| 107 | case FieldDescriptor::TYPE_STRING: |
| 108 | return JAVA_TYPE_STRING; |
| 109 | case FieldDescriptor::TYPE_GROUP: |
| 110 | return JAVA_TYPE_UNKNOWN; |
| 111 | case FieldDescriptor::TYPE_MESSAGE: |
| 112 | // TODO: not the final package name |
| 113 | if (field->message_type()->full_name() == "android.os.statsd.WorkSource") { |
| 114 | return JAVA_TYPE_WORK_SOURCE; |
| 115 | } else { |
| 116 | return JAVA_TYPE_OBJECT; |
| 117 | } |
| 118 | case FieldDescriptor::TYPE_BYTES: |
| 119 | return JAVA_TYPE_BYTE_ARRAY; |
| 120 | case FieldDescriptor::TYPE_UINT32: |
| 121 | return JAVA_TYPE_INT; |
| 122 | case FieldDescriptor::TYPE_ENUM: |
| 123 | return JAVA_TYPE_INT; |
| 124 | case FieldDescriptor::TYPE_SFIXED32: |
| 125 | return JAVA_TYPE_INT; |
| 126 | case FieldDescriptor::TYPE_SFIXED64: |
| 127 | return JAVA_TYPE_LONG; |
| 128 | case FieldDescriptor::TYPE_SINT32: |
| 129 | return JAVA_TYPE_INT; |
| 130 | case FieldDescriptor::TYPE_SINT64: |
| 131 | return JAVA_TYPE_LONG; |
| 132 | default: |
| 133 | return JAVA_TYPE_UNKNOWN; |
| 134 | } |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * Gather the info about the atoms. |
| 139 | */ |
| 140 | int |
| 141 | collate_atoms(const Descriptor* descriptor, Atoms* atoms) |
| 142 | { |
| 143 | int errorCount = 0; |
| 144 | const bool dbg = false; |
| 145 | |
| 146 | for (int i=0; i<descriptor->field_count(); i++) { |
| 147 | const FieldDescriptor* atomField = descriptor->field(i); |
| 148 | |
| 149 | if (dbg) { |
| 150 | printf(" %s (%d)\n", atomField->name().c_str(), atomField->number()); |
| 151 | } |
| 152 | |
| 153 | // StatsEvent only has one oneof, which contains only messages. Don't allow other types. |
| 154 | if (atomField->type() != FieldDescriptor::TYPE_MESSAGE) { |
| 155 | print_error(atomField, |
| 156 | "Bad type for atom. StatsEvent can only have message type fields: %s\n", |
| 157 | atomField->name().c_str()); |
| 158 | errorCount++; |
| 159 | continue; |
| 160 | } |
| 161 | |
| 162 | const Descriptor* atom = atomField->message_type(); |
| 163 | |
| 164 | // Build a sorted list of the fields. Descriptor has them in source file order. |
| 165 | map<int,const FieldDescriptor*> fields; |
| 166 | for (int j=0; j<atom->field_count(); j++) { |
| 167 | const FieldDescriptor* field = atom->field(j); |
| 168 | fields[field->number()] = field; |
| 169 | } |
| 170 | |
| 171 | // Check that the parameters start at 1 and go up sequentially. |
| 172 | int expectedNumber = 1; |
| 173 | for (map<int,const FieldDescriptor*>::const_iterator it = fields.begin(); |
| 174 | it != fields.end(); it++) { |
| 175 | const int number = it->first; |
| 176 | const FieldDescriptor* field = it->second; |
| 177 | if (number != expectedNumber) { |
| 178 | print_error(field, "Fields must be numbered consecutively starting at 1:" |
| 179 | " '%s' is %d but should be %d\n", |
| 180 | field->name().c_str(), number, expectedNumber); |
| 181 | errorCount++; |
| 182 | expectedNumber = number; |
| 183 | continue; |
| 184 | } |
| 185 | expectedNumber++; |
| 186 | } |
| 187 | |
| 188 | // Check that only allowed types are present. Remove any invalid ones. |
| 189 | for (map<int,const FieldDescriptor*>::const_iterator it = fields.begin(); |
| 190 | it != fields.end(); it++) { |
| 191 | const FieldDescriptor* field = it->second; |
| 192 | |
| 193 | java_type_t javaType = java_type(field); |
| 194 | |
| 195 | if (javaType == JAVA_TYPE_UNKNOWN) { |
| 196 | print_error(field, "Unkown type for field: %s\n", field->name().c_str()); |
| 197 | errorCount++; |
| 198 | continue; |
| 199 | } else if (javaType == JAVA_TYPE_OBJECT) { |
| 200 | // Allow WorkSources, but only at position 1. |
| 201 | print_error(field, "Message type not allowed for field: %s\n", |
| 202 | field->name().c_str()); |
| 203 | errorCount++; |
| 204 | continue; |
| 205 | } else if (javaType == JAVA_TYPE_BYTE_ARRAY) { |
| 206 | print_error(field, "Raw bytes type not allowed for field: %s\n", |
| 207 | field->name().c_str()); |
| 208 | errorCount++; |
| 209 | continue; |
| 210 | } |
| 211 | |
| 212 | } |
| 213 | |
| 214 | // Check that if there's a WorkSource, it's at position 1. |
| 215 | for (map<int,const FieldDescriptor*>::const_iterator it = fields.begin(); |
| 216 | it != fields.end(); it++) { |
| 217 | int number = it->first; |
| 218 | if (number != 1) { |
| 219 | const FieldDescriptor* field = it->second; |
| 220 | java_type_t javaType = java_type(field); |
| 221 | if (javaType == JAVA_TYPE_WORK_SOURCE) { |
| 222 | print_error(field, "WorkSource fields must have field id 1, in message: '%s'\n", |
| 223 | atom->name().c_str()); |
| 224 | errorCount++; |
| 225 | } |
| 226 | } |
| 227 | } |
| 228 | |
| 229 | AtomDecl atomDecl(atomField->number(), atomField->name(), atom->name()); |
| 230 | |
| 231 | // Build the type signature |
| 232 | vector<java_type_t> signature; |
| 233 | for (map<int,const FieldDescriptor*>::const_iterator it = fields.begin(); |
| 234 | it != fields.end(); it++) { |
| 235 | const FieldDescriptor* field = it->second; |
| 236 | java_type_t javaType = java_type(field); |
| 237 | |
| 238 | atomDecl.fields.push_back(AtomField(field->name(), javaType)); |
| 239 | signature.push_back(javaType); |
| 240 | } |
| 241 | |
| 242 | atoms->signatures.insert(signature); |
| 243 | atoms->decls.insert(atomDecl); |
| 244 | } |
| 245 | |
| 246 | if (dbg) { |
| 247 | printf("signatures = [\n"); |
| 248 | for (set<vector<java_type_t>>::const_iterator it = atoms->signatures.begin(); |
| 249 | it != atoms->signatures.end(); it++) { |
| 250 | printf(" "); |
| 251 | for (vector<java_type_t>::const_iterator jt = it->begin(); jt != it->end(); jt++) { |
| 252 | printf(" %d", (int)*jt); |
| 253 | } |
| 254 | printf("\n"); |
| 255 | } |
| 256 | printf("]\n"); |
| 257 | } |
| 258 | |
| 259 | return errorCount; |
| 260 | } |
| 261 | |
| 262 | } // namespace stats_log_api_gen |
| 263 | } // namespace android |
| 264 | |
| 265 | |