sdksandbox/tests/hostsidetests/SdkSandboxStorageHostTest/codeprovider/src/com/android/tests/codeprovider/storagetest_1/StorageTestSdk1ApiImpl.java

/*
 * 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.tests.codeprovider.storagetest_1;

import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;

import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class StorageTestSdk1ApiImpl extends IStorageTestSdk1Api.Stub {
    private final Context mContext;

    public StorageTestSdk1ApiImpl(Context sdkContext) {
        mContext = sdkContext;
    }

    @Override
    public void verifySharedStorageIsUsable() {
        String sharedPath = getSharedStoragePath();
        try {
            // Read the file
            String input = Files.readAllLines(Paths.get(sharedPath, "readme.txt")).get(0);

            // Create a dir
            Files.createDirectory(Paths.get(sharedPath, "dir"));
            // Write to a file
            Path filepath = Paths.get(sharedPath, "dir", "file");
            Files.createFile(filepath);
            Files.write(filepath, input.getBytes());
        } catch (Exception e) {
            throw new IllegalStateException(e);
        }
    }

    @Override
    public void verifyPerSdkStorageIsUsable() {
        try {
            String sdkDataPath = mContext.getDataDir().toString();
            // Read the file
            String input = Files.readAllLines(Paths.get(sdkDataPath, "readme.txt")).get(0);

            // Create a dir
            Files.createDirectory(Paths.get(sdkDataPath, "dir"));
            // Write to a file
            Path filepath = Paths.get(sdkDataPath, "dir", "file");
            Files.createFile(filepath);
            Files.write(filepath, input.getBytes());
        } catch (Exception e) {
            throw new IllegalStateException(e);
        }
    }

    @Override
    public void createFilesInSharedStorage(int sizeInBytes, boolean inCacheDir) {
        try {
            final byte[] buffer = new byte[sizeInBytes];
            final String path = inCacheDir ? getSharedStorageCachePath() : getSharedStoragePath();

            Files.createDirectory(Paths.get(path, "attribution"));
            final Path filepath = Paths.get(path, "attribution", "file");
            Files.createFile(filepath);
            Files.write(filepath, buffer);
        } catch (Exception e) {
            throw new IllegalStateException(e);
        }
    }

    @Override
    public String getSyncedSharedPreferencesString(String key) {
        return getClientSharedPreferences().getString(key, "");
    }

    private String getSharedStoragePath() {
        return mContext.getApplicationContext().getDataDir().toString();
    }

    private String getSharedStorageCachePath() {
        return mContext.getApplicationContext().getCacheDir().toString();
    }

    // TODO(b/237410689): Replace with real getClientSharedPreferences
    private SharedPreferences getClientSharedPreferences() {
        return PreferenceManager.getDefaultSharedPreferences(mContext.getApplicationContext());
    }
}