cmds/statsd/src/metadata_util.cpp

/*
 * Copyright (C) 2020 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 "FieldValue.h"
#include "metadata_util.h"

namespace android {
namespace os {
namespace statsd {

void writeValueToProto(metadata::FieldValue* metadataFieldValue, const Value& value) {
    std::string storage_value;
    switch (value.getType()) {
        case INT:
            metadataFieldValue->set_value_int(value.int_value);
            break;
        case LONG:
            metadataFieldValue->set_value_long(value.long_value);
            break;
        case FLOAT:
            metadataFieldValue->set_value_float(value.float_value);
            break;
        case DOUBLE:
            metadataFieldValue->set_value_double(value.double_value);
            break;
        case STRING:
            metadataFieldValue->set_value_str(value.str_value.c_str());
            break;
        case STORAGE: // byte array
            storage_value = ((char*) value.storage_value.data());
            metadataFieldValue->set_value_storage(storage_value);
            break;
        default:
            break;
    }
}

void writeMetricDimensionKeyToMetadataDimensionKey(
        const MetricDimensionKey& metricKey,
        metadata::MetricDimensionKey* metadataMetricKey) {
    for (const FieldValue& fieldValue : metricKey.getDimensionKeyInWhat().getValues()) {
        metadata::FieldValue* metadataFieldValue = metadataMetricKey->add_dimension_key_in_what();
        metadata::Field* metadataField = metadataFieldValue->mutable_field();
        metadataField->set_tag(fieldValue.mField.getTag());
        metadataField->set_field(fieldValue.mField.getField());
        writeValueToProto(metadataFieldValue, fieldValue.mValue);
    }

    for (const FieldValue& fieldValue : metricKey.getStateValuesKey().getValues()) {
        metadata::FieldValue* metadataFieldValue = metadataMetricKey->add_state_values_key();
        metadata::Field* metadataField = metadataFieldValue->mutable_field();
        metadataField->set_tag(fieldValue.mField.getTag());
        metadataField->set_field(fieldValue.mField.getField());
        writeValueToProto(metadataFieldValue, fieldValue.mValue);
    }
}

}  // namespace statsd
}  // namespace os
}  // namespace android