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Kotlin conversion: ReadyWithResult
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2 changed files with 41 additions and 41 deletions
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// 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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41
sop-java/src/main/kotlin/sop/ReadyWithResult.kt
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41
sop-java/src/main/kotlin/sop/ReadyWithResult.kt
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// SPDX-FileCopyrightText: 2023 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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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
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* of the 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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* @throws IOException in case of an IO error
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* @throws SOPGPException in case of a SOP protocol error
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*/
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@Throws(IOException::class, SOPGPException::class)
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abstract fun writeTo(outputStream: OutputStream): T
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/**
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* Return the data as a [ByteArrayAndResult]. Calling [ByteArrayAndResult.bytes] will give you
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* access to the data as byte array, while [ByteArrayAndResult.result] will grant access to the
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* 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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@Throws(IOException::class, SOPGPException::class)
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fun toByteArrayAndResult() =
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ByteArrayOutputStream().let {
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val result = writeTo(it)
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ByteArrayAndResult(it.toByteArray(), result)
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}
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}
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