86 lines
2.7 KiB
Kotlin
86 lines
2.7 KiB
Kotlin
/*
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* Copyright 2017 Christian Basler
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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 ch.dissem.msgpack.types
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import ch.dissem.msgpack.types.Utils.bytes
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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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import java.nio.ByteBuffer
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import java.util.*
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/**
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* Representation of msgpack encoded binary data a.k.a. byte array.
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*/
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data class MPBinary(override val value: ByteArray) : MPType<ByteArray> {
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@Throws(IOException::class)
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override fun pack(out: OutputStream) {
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val size = value.size
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when {
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size < 256 -> {
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out.write(0xC4)
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out.write(size.toByte().toInt())
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}
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size < 65536 -> {
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out.write(0xC5)
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out.write(ByteBuffer.allocate(2).putShort(size.toShort()).array())
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}
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else -> {
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out.write(0xC6)
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out.write(ByteBuffer.allocate(4).putInt(size).array())
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}
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}
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out.write(value)
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}
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override fun equals(other: Any?): Boolean {
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if (this === other) return true
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if (other !is MPBinary) return false
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return Arrays.equals(value, other.value)
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}
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override fun hashCode(): Int {
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return Arrays.hashCode(value)
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}
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override fun toString(): String {
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return toJson()
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}
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override fun toJson(): String {
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return Utils.base64(value)
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}
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class Unpacker : MPType.Unpacker<MPBinary> {
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override fun doesUnpack(firstByte: Int): Boolean {
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return firstByte == 0xC4 || firstByte == 0xC5 || firstByte == 0xC6
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}
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@Throws(IOException::class)
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override fun unpack(firstByte: Int, input: InputStream): MPBinary {
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val size: Int = when (firstByte) {
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0xC4 -> input.read()
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0xC5 -> input.read() shl 8 or input.read()
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0xC6 -> input.read() shl 24 or (input.read() shl 16) or (input.read() shl 8) or input.read()
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else -> throw IllegalArgumentException(String.format("Unexpected first byte 0x%02x", firstByte))
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}
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return MPBinary(bytes(input, size).array())
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}
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}
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}
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