58 lines
1.8 KiB
Kotlin
58 lines
1.8 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
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import ch.dissem.msgpack.types.*
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import java.io.IOException
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import java.io.InputStream
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/**
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* Reads MPType object from an [InputStream].
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*/
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object Reader {
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private val unpackers = mutableListOf<MPType.Unpacker<*>>()
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init {
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unpackers.add(MPNil.Unpacker())
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unpackers.add(MPBoolean.Unpacker())
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unpackers.add(MPInteger.Unpacker())
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unpackers.add(MPFloat.Unpacker())
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unpackers.add(MPString.Unpacker())
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unpackers.add(MPBinary.Unpacker())
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unpackers.add(MPMap.Unpacker(this))
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unpackers.add(MPArray.Unpacker(this))
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}
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/**
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* Register your own extensions. The last registered unpacker always takes precedence.
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*/
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fun register(unpacker: MPType.Unpacker<*>) {
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unpackers.add(0, unpacker)
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}
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@Throws(IOException::class)
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fun read(input: InputStream): MPType<*> {
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val firstByte = input.read()
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unpackers
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.firstOrNull { it.doesUnpack(firstByte) }
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?.let {
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return it.unpack(firstByte, input)
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}
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throw IOException(String.format("Unsupported input, no reader for 0x%02x", firstByte))
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}
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}
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