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/*
* Copyright (C) 2019, 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 "java_writer.h"
#include "java_writer_q.h"
#include "utils.h"
namespace android {
namespace stats_log_api_gen {
static int write_java_q_logger_class(
FILE* out,
const map<vector<java_type_t>, FieldNumberToAnnotations>& signatureInfoMap,
const AtomDecl &attributionDecl) {
fprintf(out, "\n");
fprintf(out, " // Write logging helper methods for statsd in Q and earlier.\n");
fprintf(out, " private static class QLogger {\n");
write_java_q_logging_constants(out, " ");
// Print Q write methods.
fprintf(out, "\n");
fprintf(out, " // Write methods.\n");
write_java_methods_q_schema(
out, signatureInfoMap, attributionDecl, " ");
fprintf(out, " }\n");
return 0;
}
static void write_annotations(
FILE* out, int argIndex,
const FieldNumberToAnnotations& fieldNumberToAnnotations) {
auto it = fieldNumberToAnnotations.find(argIndex);
if (it == fieldNumberToAnnotations.end()) {
return;
}
const set<shared_ptr<Annotation>>& annotations = it->second;
for (auto& annotation: annotations) {
// TODO(b/151744250): Group annotations for same atoms.
// TODO(b/151786433): Write atom constant name instead of atom id literal.
fprintf(out, " if (code == %d) {\n", annotation->atomId);
switch(annotation->type) {
case ANNOTATION_TYPE_INT:
// TODO(b/151776731): Check for reset state annotation and only include reset state
// when field value == default state annotation value.
// TODO(b/151786433): Write annotation constant name instead of
// annotation id literal.
fprintf(out, " builder.addIntAnnotation((byte) %d, %d);\n",
annotation->annotationId, annotation->value.intValue);
break;
case ANNOTATION_TYPE_BOOL:
// TODO(b/151786433): Write annotation constant name instead of
// annotation id literal.
fprintf(out, " builder.addBooleanAnnotation((byte) %d, %s);\n",
annotation->annotationId,
annotation->value.boolValue ? "true" : "false");
break;
default:
break;
}
fprintf(out, " }\n");
}
}
static int write_java_methods(
FILE* out,
const map<vector<java_type_t>, FieldNumberToAnnotations>& signatureInfoMap,
const AtomDecl &attributionDecl,
const bool supportQ
) {
for (auto signatureInfoMapIt = signatureInfoMap.begin();
signatureInfoMapIt != signatureInfoMap.end(); signatureInfoMapIt++) {
// Print method signature.
fprintf(out, " public static void write(int code");
const vector<java_type_t>& signature = signatureInfoMapIt->first;
const FieldNumberToAnnotations& fieldNumberToAnnotations = signatureInfoMapIt->second;
int argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature.begin();
arg != signature.end(); arg++) {
if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (auto chainField : attributionDecl.fields) {
fprintf(out, ", %s[] %s",
java_type_name(chainField.javaType), chainField.name.c_str());
}
} else if (*arg == JAVA_TYPE_KEY_VALUE_PAIR) {
fprintf(out, ", android.util.SparseArray<Object> valueMap");
} else {
fprintf(out, ", %s arg%d", java_type_name(*arg), argIndex);
}
argIndex++;
}
fprintf(out, ") {\n");
// Print method body.
string indent("");
if (supportQ) {
// TODO(b/146235828): Use just SDK_INT check once it is incremented from Q.
fprintf(out, " if (Build.VERSION.SDK_INT > Build.VERSION_CODES.Q\n");
fprintf(out, " || (Build.VERSION.SDK_INT == Build.VERSION_CODES.Q\n");
fprintf(out, " && Build.VERSION.PREVIEW_SDK_INT > 0)) {\n");
indent = " ";
}
// Start StatsEvent.Builder.
fprintf(out, "%s final StatsEvent.Builder builder = StatsEvent.newBuilder();\n",
indent.c_str());
// Write atom code.
fprintf(out, "%s builder.setAtomId(code);\n", indent.c_str());
// Write the args.
argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature.begin();
arg != signature.end(); arg++) {
switch (*arg) {
case JAVA_TYPE_BOOLEAN:
fprintf(out, "%s builder.writeBoolean(arg%d);\n", indent.c_str(), argIndex);
break;
case JAVA_TYPE_INT:
case JAVA_TYPE_ENUM:
fprintf(out, "%s builder.writeInt(arg%d);\n", indent.c_str(), argIndex);
break;
case JAVA_TYPE_FLOAT:
fprintf(out, "%s builder.writeFloat(arg%d);\n", indent.c_str(), argIndex);
break;
case JAVA_TYPE_LONG:
fprintf(out, "%s builder.writeLong(arg%d);\n", indent.c_str(), argIndex);
break;
case JAVA_TYPE_STRING:
fprintf(out, "%s builder.writeString(arg%d);\n", indent.c_str(), argIndex);
break;
case JAVA_TYPE_BYTE_ARRAY:
fprintf(out, "%s builder.writeByteArray(null == arg%d ? new byte[0] : arg%d);\n",
indent.c_str(), argIndex, argIndex);
break;
case JAVA_TYPE_ATTRIBUTION_CHAIN:
{
const char* uidName = attributionDecl.fields.front().name.c_str();
const char* tagName = attributionDecl.fields.back().name.c_str();
fprintf(out, "%s builder.writeAttributionChain(\n", indent.c_str());
fprintf(out, "%s null == %s ? new int[0] : %s,\n",
indent.c_str(), uidName, uidName);
fprintf(out, "%s null == %s ? new String[0] : %s);\n",
indent.c_str(), tagName, tagName);
break;
}
case JAVA_TYPE_KEY_VALUE_PAIR:
fprintf(out, "\n");
fprintf(out,
"%s // Write KeyValuePairs.\n", indent.c_str());
fprintf(out,
"%s final int count = valueMap.size();\n", indent.c_str());
fprintf(out,
"%s android.util.SparseIntArray intMap = null;\n",
indent.c_str());
fprintf(out,
"%s android.util.SparseLongArray longMap = null;\n",
indent.c_str());
fprintf(out,
"%s android.util.SparseArray<String> stringMap = null;\n",
indent.c_str());
fprintf(out,
"%s android.util.SparseArray<Float> floatMap = null;\n",
indent.c_str());
fprintf(out,
"%s for (int i = 0; i < count; i++) {\n", indent.c_str());
fprintf(out,
"%s final int key = valueMap.keyAt(i);\n", indent.c_str());
fprintf(out,
"%s final Object value = valueMap.valueAt(i);\n",
indent.c_str());
fprintf(out,
"%s if (value instanceof Integer) {\n", indent.c_str());
fprintf(out,
"%s if (null == intMap) {\n", indent.c_str());
fprintf(out,
"%s intMap = new android.util.SparseIntArray();\n", indent.c_str());
fprintf(out,
"%s }\n", indent.c_str());
fprintf(out,
"%s intMap.put(key, (Integer) value);\n", indent.c_str());
fprintf(out,
"%s } else if (value instanceof Long) {\n", indent.c_str());
fprintf(out,
"%s if (null == longMap) {\n", indent.c_str());
fprintf(out,
"%s longMap = new android.util.SparseLongArray();\n", indent.c_str());
fprintf(out,
"%s }\n", indent.c_str());
fprintf(out,
"%s longMap.put(key, (Long) value);\n", indent.c_str());
fprintf(out,
"%s } else if (value instanceof String) {\n", indent.c_str());
fprintf(out,
"%s if (null == stringMap) {\n", indent.c_str());
fprintf(out,
"%s stringMap = new android.util.SparseArray<>();\n", indent.c_str());
fprintf(out,
"%s }\n", indent.c_str());
fprintf(out,
"%s stringMap.put(key, (String) value);\n", indent.c_str());
fprintf(out,
"%s } else if (value instanceof Float) {\n", indent.c_str());
fprintf(out,
"%s if (null == floatMap) {\n", indent.c_str());
fprintf(out,
"%s floatMap = new android.util.SparseArray<>();\n", indent.c_str());
fprintf(out,
"%s }\n", indent.c_str());
fprintf(out,
"%s floatMap.put(key, (Float) value);\n", indent.c_str());
fprintf(out,
"%s }\n", indent.c_str());
fprintf(out,
"%s }\n", indent.c_str());
fprintf(out,
"%s builder.writeKeyValuePairs("
"intMap, longMap, stringMap, floatMap);\n", indent.c_str());
break;
default:
// Unsupported types: OBJECT, DOUBLE.
fprintf(stderr, "Encountered unsupported type.");
return 1;
}
write_annotations(out, argIndex, fieldNumberToAnnotations);
argIndex++;
}
fprintf(out, "\n");
fprintf(out, "%s builder.usePooledBuffer();\n", indent.c_str());
fprintf(out, "%s StatsLog.write(builder.build());\n", indent.c_str());
// Add support for writing using Q schema if this is not the default module.
if (supportQ) {
fprintf(out, " } else {\n");
fprintf(out, " QLogger.write(code");
argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature.begin();
arg != signature.end(); arg++) {
if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
const char* uidName = attributionDecl.fields.front().name.c_str();
const char* tagName = attributionDecl.fields.back().name.c_str();
fprintf(out, ", %s, %s", uidName, tagName);
} else if (*arg == JAVA_TYPE_KEY_VALUE_PAIR) {
// Module logging does not yet support key value pair.
fprintf(stderr, "Module logging does not yet support key value pair.\n");
return 1;
} else {
fprintf(out, ", arg%d", argIndex);
}
argIndex++;
}
fprintf(out, ");\n");
fprintf(out, " }\n"); // if
}
fprintf(out, " }\n"); // method
fprintf(out, "\n");
}
return 0;
}
int write_stats_log_java(FILE* out, const Atoms& atoms, const AtomDecl &attributionDecl,
const string& javaClass,
const string& javaPackage, const bool supportQ,
const bool supportWorkSource) {
// Print prelude
fprintf(out, "// This file is autogenerated\n");
fprintf(out, "\n");
fprintf(out, "package %s;\n", javaPackage.c_str());
fprintf(out, "\n");
fprintf(out, "\n");
if (supportQ) {
fprintf(out, "import android.os.Build;\n");
fprintf(out, "import android.os.SystemClock;\n");
}
fprintf(out, "import android.util.StatsEvent;\n");
fprintf(out, "import android.util.StatsLog;\n");
fprintf(out, "\n");
fprintf(out, "\n");
fprintf(out, "/**\n");
fprintf(out, " * Utility class for logging statistics events.\n");
fprintf(out, " */\n");
fprintf(out, "public class %s {\n", javaClass.c_str());
write_java_atom_codes(out, atoms);
write_java_enum_values(out, atoms);
int errors = 0;
// Print write methods.
fprintf(out, " // Write methods\n");
errors += write_java_methods(
out, atoms.signatureInfoMap, attributionDecl, supportQ);
errors += write_java_non_chained_methods(
out, atoms.nonChainedSignatureInfoMap);
if (supportWorkSource) {
errors += write_java_work_source_methods(out, atoms.signatureInfoMap);
}
if (supportQ) {
errors += write_java_q_logger_class(
out, atoms.signatureInfoMap, attributionDecl);
}
fprintf(out, "}\n");
return errors;
}
} // namespace stats_log_api_gen
} // namespace android
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