| /* |
| * Copyright (C) 2017, The Android Open Source Project |
| * |
| * Licensed 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 "Collation.h" |
| |
| #include <stdio.h> |
| #include <map> |
| |
| namespace android { |
| namespace stats_log_api_gen { |
| |
| using google::protobuf::EnumDescriptor; |
| using google::protobuf::FieldDescriptor; |
| using google::protobuf::FileDescriptor; |
| using google::protobuf::SourceLocation; |
| using std::map; |
| |
| |
| // |
| // AtomDecl class |
| // |
| |
| AtomDecl::AtomDecl() |
| :code(0), |
| name() |
| { |
| } |
| |
| AtomDecl::AtomDecl(const AtomDecl& that) |
| :code(that.code), |
| name(that.name), |
| message(that.message), |
| fields(that.fields) |
| { |
| } |
| |
| AtomDecl::AtomDecl(int c, const string& n, const string& m) |
| :code(c), |
| name(n), |
| message(m) |
| { |
| } |
| |
| AtomDecl::~AtomDecl() |
| { |
| } |
| |
| |
| /** |
| * Print an error message for a FieldDescriptor, including the file name and line number. |
| */ |
| static void |
| print_error(const FieldDescriptor* field, const char* format, ...) |
| { |
| const Descriptor* message = field->containing_type(); |
| const FileDescriptor* file = message->file(); |
| |
| SourceLocation loc; |
| if (field->GetSourceLocation(&loc)) { |
| // TODO: this will work if we can figure out how to pass --include_source_info to protoc |
| fprintf(stderr, "%s:%d: ", file->name().c_str(), loc.start_line); |
| } else { |
| fprintf(stderr, "%s: ", file->name().c_str()); |
| } |
| va_list args; |
| va_start(args, format); |
| vfprintf(stderr, format, args); |
| va_end (args); |
| } |
| |
| /** |
| * Convert a protobuf type into a java type. |
| */ |
| static java_type_t |
| java_type(const FieldDescriptor* field) |
| { |
| int protoType = field->type(); |
| switch (protoType) { |
| case FieldDescriptor::TYPE_DOUBLE: |
| return JAVA_TYPE_DOUBLE; |
| case FieldDescriptor::TYPE_FLOAT: |
| return JAVA_TYPE_FLOAT; |
| case FieldDescriptor::TYPE_INT64: |
| return JAVA_TYPE_LONG; |
| case FieldDescriptor::TYPE_UINT64: |
| return JAVA_TYPE_LONG; |
| case FieldDescriptor::TYPE_INT32: |
| return JAVA_TYPE_INT; |
| case FieldDescriptor::TYPE_FIXED64: |
| return JAVA_TYPE_LONG; |
| case FieldDescriptor::TYPE_FIXED32: |
| return JAVA_TYPE_INT; |
| case FieldDescriptor::TYPE_BOOL: |
| return JAVA_TYPE_BOOLEAN; |
| case FieldDescriptor::TYPE_STRING: |
| return JAVA_TYPE_STRING; |
| case FieldDescriptor::TYPE_GROUP: |
| return JAVA_TYPE_UNKNOWN; |
| case FieldDescriptor::TYPE_MESSAGE: |
| // TODO: not the final package name |
| if (field->message_type()->full_name() == "android.os.statsd.WorkSource") { |
| return JAVA_TYPE_WORK_SOURCE; |
| } else { |
| return JAVA_TYPE_OBJECT; |
| } |
| case FieldDescriptor::TYPE_BYTES: |
| return JAVA_TYPE_BYTE_ARRAY; |
| case FieldDescriptor::TYPE_UINT32: |
| return JAVA_TYPE_INT; |
| case FieldDescriptor::TYPE_ENUM: |
| return JAVA_TYPE_ENUM; |
| case FieldDescriptor::TYPE_SFIXED32: |
| return JAVA_TYPE_INT; |
| case FieldDescriptor::TYPE_SFIXED64: |
| return JAVA_TYPE_LONG; |
| case FieldDescriptor::TYPE_SINT32: |
| return JAVA_TYPE_INT; |
| case FieldDescriptor::TYPE_SINT64: |
| return JAVA_TYPE_LONG; |
| default: |
| return JAVA_TYPE_UNKNOWN; |
| } |
| } |
| |
| /** |
| * Gather the info about the atoms. |
| */ |
| int |
| collate_atoms(const Descriptor* descriptor, Atoms* atoms) |
| { |
| int errorCount = 0; |
| const bool dbg = false; |
| |
| for (int i=0; i<descriptor->field_count(); i++) { |
| const FieldDescriptor* atomField = descriptor->field(i); |
| |
| if (dbg) { |
| printf(" %s (%d)\n", atomField->name().c_str(), atomField->number()); |
| } |
| |
| // StatsEvent only has one oneof, which contains only messages. Don't allow other types. |
| if (atomField->type() != FieldDescriptor::TYPE_MESSAGE) { |
| print_error(atomField, |
| "Bad type for atom. StatsEvent can only have message type fields: %s\n", |
| atomField->name().c_str()); |
| errorCount++; |
| continue; |
| } |
| |
| const Descriptor* atom = atomField->message_type(); |
| |
| // Build a sorted list of the fields. Descriptor has them in source file order. |
| map<int,const FieldDescriptor*> fields; |
| for (int j=0; j<atom->field_count(); j++) { |
| const FieldDescriptor* field = atom->field(j); |
| fields[field->number()] = field; |
| } |
| |
| // Check that the parameters start at 1 and go up sequentially. |
| int expectedNumber = 1; |
| for (map<int,const FieldDescriptor*>::const_iterator it = fields.begin(); |
| it != fields.end(); it++) { |
| const int number = it->first; |
| const FieldDescriptor* field = it->second; |
| if (number != expectedNumber) { |
| print_error(field, "Fields must be numbered consecutively starting at 1:" |
| " '%s' is %d but should be %d\n", |
| field->name().c_str(), number, expectedNumber); |
| errorCount++; |
| expectedNumber = number; |
| continue; |
| } |
| expectedNumber++; |
| } |
| |
| // Check that only allowed types are present. Remove any invalid ones. |
| for (map<int,const FieldDescriptor*>::const_iterator it = fields.begin(); |
| it != fields.end(); it++) { |
| const FieldDescriptor* field = it->second; |
| |
| java_type_t javaType = java_type(field); |
| |
| if (javaType == JAVA_TYPE_UNKNOWN) { |
| print_error(field, "Unkown type for field: %s\n", field->name().c_str()); |
| errorCount++; |
| continue; |
| } else if (javaType == JAVA_TYPE_OBJECT) { |
| // Allow WorkSources, but only at position 1. |
| print_error(field, "Message type not allowed for field: %s\n", |
| field->name().c_str()); |
| errorCount++; |
| continue; |
| } else if (javaType == JAVA_TYPE_BYTE_ARRAY) { |
| print_error(field, "Raw bytes type not allowed for field: %s\n", |
| field->name().c_str()); |
| errorCount++; |
| continue; |
| } |
| } |
| |
| // Check that if there's a WorkSource, it's at position 1. |
| for (map<int,const FieldDescriptor*>::const_iterator it = fields.begin(); |
| it != fields.end(); it++) { |
| int number = it->first; |
| if (number != 1) { |
| const FieldDescriptor* field = it->second; |
| java_type_t javaType = java_type(field); |
| if (javaType == JAVA_TYPE_WORK_SOURCE) { |
| print_error(field, "WorkSource fields must have field id 1, in message: '%s'\n", |
| atom->name().c_str()); |
| errorCount++; |
| } |
| } |
| } |
| |
| AtomDecl atomDecl(atomField->number(), atomField->name(), atom->name()); |
| |
| // Build the type signature and the atom data. |
| vector<java_type_t> signature; |
| for (map<int,const FieldDescriptor*>::const_iterator it = fields.begin(); |
| it != fields.end(); it++) { |
| const FieldDescriptor* field = it->second; |
| java_type_t javaType = java_type(field); |
| |
| AtomField atField(field->name(), javaType); |
| if (javaType == JAVA_TYPE_ENUM) { |
| // All enums are treated as ints when it comes to function signatures. |
| signature.push_back(JAVA_TYPE_INT); |
| const EnumDescriptor* enumDescriptor = field->enum_type(); |
| for (int i = 0; i < enumDescriptor->value_count(); i++) { |
| atField.enumValues[enumDescriptor->value(i)->number()] = |
| enumDescriptor->value(i)->name().c_str(); |
| } |
| } else { |
| signature.push_back(javaType); |
| } |
| atomDecl.fields.push_back(atField); |
| } |
| |
| atoms->signatures.insert(signature); |
| atoms->decls.insert(atomDecl); |
| } |
| |
| if (dbg) { |
| printf("signatures = [\n"); |
| for (set<vector<java_type_t>>::const_iterator it = atoms->signatures.begin(); |
| it != atoms->signatures.end(); it++) { |
| printf(" "); |
| for (vector<java_type_t>::const_iterator jt = it->begin(); jt != it->end(); jt++) { |
| printf(" %d", (int)*jt); |
| } |
| printf("\n"); |
| } |
| printf("]\n"); |
| } |
| |
| return errorCount; |
| } |
| |
| } // namespace stats_log_api_gen |
| } // namespace android |