42 lines
1.5 KiB
Java
42 lines
1.5 KiB
Java
// SPDX-FileCopyrightText: 2021 Paul Schaub <vanitasvitae@fsfe.org>
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//
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// SPDX-License-Identifier: Apache-2.0
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package sop;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import sop.exception.SOPGPException;
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public abstract class ReadyWithResult<T> {
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/**
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* Write the data e.g. decrypted plaintext to the provided output stream and return the result of the
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* processing operation.
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*
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* @param outputStream output stream
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* @return result, eg. signatures
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*
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* @throws IOException in case of an IO error
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* @throws SOPGPException.NoSignature if there are no valid signatures found
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*/
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public abstract T writeTo(OutputStream outputStream) throws IOException, SOPGPException.NoSignature;
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/**
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* Return the data as a {@link ByteArrayAndResult}.
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* Calling {@link ByteArrayAndResult#getBytes()} will give you access to the data as byte array, while
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* {@link ByteArrayAndResult#getResult()} will grant access to the appended result.
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*
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* @return byte array and result
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* @throws IOException in case of an IO error
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* @throws SOPGPException.NoSignature if there are no valid signatures found
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*/
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public ByteArrayAndResult<T> toByteArrayAndResult() throws IOException, SOPGPException.NoSignature {
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ByteArrayOutputStream bytes = new ByteArrayOutputStream();
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T result = writeTo(bytes);
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return new ByteArrayAndResult<>(bytes.toByteArray(), result);
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}
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}
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