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Shared utility library for DeltaFi core

There is a newer version: 2.0-rc2

/*
 *    DeltaFi - Data transformation and enrichment platform
 *
 *    Copyright 2021-2023 DeltaFi Contributors 
 *
 *    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 org.deltafi.common.nifi;

import org.apache.nifi.util.FlowFilePackager;
import org.apache.nifi.util.FlowFilePackagerV1;
import org.deltafi.common.io.WriterPipedInputStream;

import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import java.util.concurrent.ExecutorService;

public class FlowFileInputStream extends WriterPipedInputStream {
    private final FlowFilePackager flowFilePackager;

    public FlowFileInputStream() throws IOException {
        this(new FlowFilePackagerV1());
    }

    public FlowFileInputStream(FlowFilePackager flowFilePackager) throws IOException {
        this.flowFilePackager = flowFilePackager;
    }

    public void runPipeWriter(InputStream in, Map attributes, long fileSize,
            ExecutorService executorService) throws IOException {
        super.runPipeWriter(outputStream ->
                flowFilePackager.packageFlowFile(in, outputStream, attributes, fileSize), executorService);
    }
}