Migrated to Kotlin

src/main/kotlin/ch/dissem/msgpack/Reader.kt

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2017 Christian Basler
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ch.dissem.msgpack
+
+import ch.dissem.msgpack.types.*
+import java.io.IOException
+import java.io.InputStream
+
+/**
+ * Reads MPType object from an [InputStream].
+ */
+object Reader {
+    private val unpackers = mutableListOf<MPType.Unpacker<*>>()
+
+    init {
+        unpackers.add(MPNil.Unpacker())
+        unpackers.add(MPBoolean.Unpacker())
+        unpackers.add(MPInteger.Unpacker())
+        unpackers.add(MPFloat.Unpacker())
+        unpackers.add(MPString.Unpacker())
+        unpackers.add(MPBinary.Unpacker())
+        unpackers.add(MPMap.Unpacker(this))
+        unpackers.add(MPArray.Unpacker(this))
+    }
+
+    /**
+     * Register your own extensions. The last registered unpacker always takes precedence.
+     */
+    fun register(unpacker: MPType.Unpacker<*>) {
+        unpackers.add(0, unpacker)
+    }
+
+    @Throws(IOException::class)
+    fun read(input: InputStream): MPType<*> {
+        val firstByte = input.read()
+        unpackers
+                .firstOrNull { it.doesUnpack(firstByte) }
+                ?.let {
+                    return it.unpack(firstByte, input)
+                }
+        throw IOException(String.format("Unsupported input, no reader for 0x%02x", firstByte))
+    }
+}