95 lines
3.2 KiB
C++
95 lines
3.2 KiB
C++
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/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "utils.h"
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#include <sstream>
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#include "parse_string.h"
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namespace android::vintf::details {
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std::optional<FqInstance> convertLegacyInstanceIntoFqInstance(
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const std::string& package, const Version& version, const std::string& interface,
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const std::string& instance, HalFormat format, std::string* appendedError) {
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// Attempt to construct a good error message.
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std::stringstream ss;
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ss << "Invalid instance: '";
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if (format == HalFormat::AIDL) {
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ss << toAidlFqnameString(package, interface, instance) << " (@" << version.minorVer << ")";
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} else {
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ss << toFQNameString(package, version, interface, instance);
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}
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ss << "'. ";
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// Attempt to guess the source of error.
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bool foundError = false;
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details::FQName fqName;
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if (!fqName.setTo(package)) {
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ss << "Package '" << package
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<< "' should have the format [a-zA-Z_][a-zA-Z0-9_]*(\\.[a-zA-Z_][a-zA-Z0-9_]*)*";
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foundError = true;
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}
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switch (format) {
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case HalFormat::HIDL:
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case HalFormat::AIDL: {
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if (!fqName.setTo(interface) || !fqName.isInterfaceName()) {
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ss << "Interface '" << interface << "' should have the format I[a-zA-Z0-9_]*";
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foundError = true;
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}
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} break;
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case HalFormat::NATIVE: {
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if (!interface.empty() && (!fqName.setTo(interface) || !fqName.isInterfaceName())) {
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ss << "Interface '" << interface << "' should have the format I[a-zA-Z0-9_]*";
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foundError = true;
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}
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} break;
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}
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if (foundError) {
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if (appendedError != nullptr) {
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*appendedError += ss.str() + "\n";
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}
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return std::nullopt;
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}
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// AIDL HAL <fqname> never contains version
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std::optional<FqInstance> parsed;
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switch (format) {
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case HalFormat::HIDL:
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case HalFormat::NATIVE:
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parsed = FqInstance::from(version.majorVer, version.minorVer, interface, instance);
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break;
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case HalFormat::AIDL:
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// AIDL HAL <fqname> never contains version
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parsed = FqInstance::from(interface, instance);
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break;
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}
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if (!parsed.has_value()) {
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if (appendedError != nullptr) {
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std::string debugString = format == HalFormat::AIDL
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? toAidlFqnameString(package, interface, instance)
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: toFQNameString(package, version, interface, instance);
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*appendedError += "Invalid FqInstance: " + debugString + "\n";
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}
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}
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return parsed;
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}
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} // namespace android::vintf::details
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