/*
 * 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.server.pinner;

import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;

/* package */ final class PinRangeSourceStream extends PinRangeSource {
    private final DataInputStream mStream;
    private boolean mDone = false;

    PinRangeSourceStream(InputStream stream) {
        mStream = new DataInputStream(stream);
    }

    @Override
    boolean read(PinnerService.PinRange outPinRange) {
        if (!mDone) {
            try {
                outPinRange.start = mStream.readInt();
                outPinRange.length = mStream.readInt();
            } catch (IOException ex) {
                mDone = true;
            }
        }
        return !mDone;
    }
}