/*
 * Copyright (C) 2024 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.internal.protolog;

import android.annotation.NonNull;
import android.annotation.Nullable;
import android.util.proto.ProtoInputStream;

import java.io.FileInputStream;
import java.io.IOException;

public final class AutoClosableProtoInputStream implements AutoCloseable {
    @NonNull
    private final ProtoInputStream mProtoInputStream;
    @Nullable
    private final FileInputStream mFileInputStream;

    public AutoClosableProtoInputStream(@NonNull FileInputStream fileInputStream) {
        mProtoInputStream = new ProtoInputStream(fileInputStream);
        mFileInputStream = fileInputStream;
    }

    public AutoClosableProtoInputStream(@NonNull byte[] input) {
        mProtoInputStream = new ProtoInputStream(input);
        mFileInputStream = null;
    }

    /**
     * @return the ProtoInputStream this class is wrapping
     */
    @NonNull
    public ProtoInputStream get() {
        return mProtoInputStream;
    }

    @Override
    public void close() throws IOException {
        if (mFileInputStream != null) {
            mFileInputStream.close();
        }
    }
}