40 lines
1.2 KiB
Java
40 lines
1.2 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 org.pgpainless.decryption_verification;
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import java.io.IOException;
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import java.io.InputStream;
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import javax.annotation.Nonnull;
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public abstract class CloseForResultInputStream extends InputStream {
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protected final OpenPgpMetadata.Builder resultBuilder;
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private boolean isClosed = false;
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public CloseForResultInputStream(@Nonnull OpenPgpMetadata.Builder resultBuilder) {
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this.resultBuilder = resultBuilder;
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}
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@Override
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public void close() throws IOException {
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this.isClosed = true;
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}
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/**
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* Return the result of the decryption.
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* The result contains metadata about the decryption, such as signatures, used keys and algorithms, as well as information
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* about the decrypted file/stream.
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*
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* Can only be obtained once the stream got successfully closed ({@link #close()}).
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* @return metadata
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*/
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public OpenPgpMetadata getResult() {
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if (!isClosed) {
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throw new IllegalStateException("Stream MUST be closed before the result can be accessed.");
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}
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return resultBuilder.build();
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}
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}
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