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/*
* Copyright (C) 2022 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.
*/
package com.android.microdroid.test.common;
import static java.util.Objects.requireNonNull;
/** This class can be used in both host tests and device tests to get the device properties. */
public final class DeviceProperties {
/** PropertyGetter is used to get the property associated to a given key. */
public interface PropertyGetter {
String getProperty(String key) throws Exception;
}
private static final String KEY_VENDOR_DEVICE = "ro.product.vendor.device";
private static final String KEY_BUILD_TYPE = "ro.build.type";
private static final String KEY_PRODUCT_NAME = "ro.product.name";
private static final String KEY_METRICS_TAG = "debug.hypervisor.metrics_tag";
private static final String CUTTLEFISH_DEVICE_PREFIX = "vsoc_";
private static final String CUTTLEFISH_ARM64_DEVICE_PREFIX = "vsoc_arm64";
private static final String USER_BUILD_TYPE = "user";
private static final String HWASAN_SUFFIX = "_hwasan";
private final PropertyGetter mPropertyGetter;
private DeviceProperties(PropertyGetter propertyGetter) {
mPropertyGetter = requireNonNull(propertyGetter);
}
/** Creates a new instance of {@link DeviceProperties}. */
public static DeviceProperties create(PropertyGetter propertyGetter) {
return new DeviceProperties(propertyGetter);
}
/**
* @return whether the device is a cuttlefish device.
*/
public boolean isCuttlefish() {
String vendorDeviceName = getProperty(KEY_VENDOR_DEVICE);
return vendorDeviceName != null && vendorDeviceName.startsWith(CUTTLEFISH_DEVICE_PREFIX);
}
/**
* @return whether the device is a cuttlefish device running on 64 bit Arm.
*/
public boolean isCuttlefishArm64() {
String vendorDeviceName = getProperty(KEY_VENDOR_DEVICE);
return vendorDeviceName != null
&& vendorDeviceName.startsWith(CUTTLEFISH_ARM64_DEVICE_PREFIX);
}
/**
* @return whether the build is HWASAN.
*/
public boolean isHwasan() {
String productName = getProperty(KEY_PRODUCT_NAME);
return productName != null && productName.contains(HWASAN_SUFFIX);
}
/**
* @return whether the device is user build.
*/
public boolean isUserBuild() {
return USER_BUILD_TYPE.equals(getProperty(KEY_BUILD_TYPE));
}
public String getMetricsTag() {
return getProperty(KEY_METRICS_TAG);
}
private String getProperty(String key) {
try {
return mPropertyGetter.getProperty(key);
} catch (Exception e) {
throw new IllegalArgumentException("Cannot get property for the key: " + key, e);
}
}
}
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