60 lines
1.9 KiB
Kotlin
60 lines
1.9 KiB
Kotlin
/*
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* Copyright 2023 dorkbox, llc
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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 dorkbox.bytes
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import java.io.ByteArrayOutputStream
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import java.io.IOException
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import java.io.InputStream
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import java.io.OutputStream
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object LZMA {
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// https://tukaani.org/xz/java.html
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init {
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try {
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Class.forName("org.tukaani.xz.LZMAOutputStream")
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}
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catch (e: Exception) {
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System.err.println("Please add the LZMA library to your classpath, for example: implementation(\"org.tukaani:xz:1.9\")")
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throw e
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}
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}
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/**
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* Gets the version number.
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*/
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val version = BytesInfo.version
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@Throws(IOException::class)
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fun encode(input: InputStream, output: OutputStream) {
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org.tukaani.xz.LZMAOutputStream(output, org.tukaani.xz.LZMA2Options(3), true).use { compressionStream ->
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input.copyTo(compressionStream)
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}
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}
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@Throws(IOException::class)
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fun decode(input: InputStream): ByteArrayOutputStream {
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val byteArrayOutputStream = ByteArrayOutputStream(8192)
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org.tukaani.xz.LZMAInputStream(input).use { compressedStream -> compressedStream.copyTo(byteArrayOutputStream) }
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return byteArrayOutputStream
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}
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@Throws(IOException::class)
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fun decode(input: InputStream, output: OutputStream) {
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org.tukaani.xz.LZMAInputStream(input).use { compressedStream -> compressedStream.copyTo(output) }
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}
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}
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