47 lines
1.6 KiB
Java
47 lines
1.6 KiB
Java
/*
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* Copyright 2021 Paul Schaub.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.pgpainless.signature.cleartext_signatures;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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/**
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* Implementation of the {@link MultiPassStrategy}.
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* This class keeps the read data in memory by caching the data inside a {@link ByteArrayOutputStream}.
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*
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* Note, that this class is suitable and efficient for processing small amounts of data.
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* For larger data like encrypted files, use of the {@link WriteToFileMultiPassStrategy} is recommended to
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* prevent {@link OutOfMemoryError OutOfMemoryErrors} and other issues.
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*/
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public class InMemoryMultiPassStrategy implements MultiPassStrategy {
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private final ByteArrayOutputStream cache = new ByteArrayOutputStream();
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@Override
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public ByteArrayOutputStream getMessageOutputStream() {
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return cache;
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}
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@Override
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public ByteArrayInputStream getMessageInputStream() {
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return new ByteArrayInputStream(getBytes());
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}
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public byte[] getBytes() {
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return getMessageOutputStream().toByteArray();
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}
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}
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