// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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 org.apache.doris.flink.sink.writer;

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

/** Record Stream for writing record. */
public class RecordStream extends InputStream {
    private final RecordBuffer recordBuffer;

    @Override
    public int read() throws IOException {
        return 0;
    }

    public RecordStream(int bufferSize, int bufferCount, boolean useCache) {
        if (useCache) {
            this.recordBuffer = new CacheRecordBuffer(bufferSize, bufferCount);
        } else {
            this.recordBuffer = new RecordBuffer(bufferSize, bufferCount);
        }
    }

    public void startInput(boolean isResume) throws IOException {
        // if resume from breakpoint, do not recycle cache buffer
        if (!isResume && recordBuffer instanceof CacheRecordBuffer) {
            ((CacheRecordBuffer) recordBuffer).recycleCache();
        }
        recordBuffer.startBufferData();
    }

    public void endInput() throws InterruptedException {
        recordBuffer.stopBufferData();
    }

    @Override
    public int read(byte[] buff) throws IOException {
        try {
            return recordBuffer.read(buff);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            throw new RuntimeException(e);
        }
    }

    public void write(byte[] buff) throws InterruptedException {
        try {
            recordBuffer.write(buff);
        } catch (InterruptedException e) {
            throw e;
        }
    }
}
