/** Deserialize an unknown InferredType from the given input stream */
public static InferredType readType(DataInput in) throws IOException {
InferredType it = null;
byte b = in.readByte();
String name = in.readUTF();
if (b == BASE_TYPE) {
it = new BaseType(name);
} else if (b == STRUCT_TYPE) {
it = new StructType(name);
} else if (b == ARRAY_TYPE) {
it = new ArrayType(name);
} else if (b == UNION_TYPE) {
it = new UnionType(name);
} else {
throw new IOException("No type found: " + b);
}
it.readFields(in);
return it;
}
/**
* Reads a primitive value of the specified class type from the stream.
*
* @param in A stream to read from.
* @param cls A class type of the primitive.
* @return A primitive.
* @throws IOException If an I/O error occurs.
*/
static Object readPrimitive(DataInput in, Class cls) throws IOException {
if (cls == byte.class) return in.readByte();
if (cls == short.class) return in.readShort();
if (cls == int.class) return in.readInt();
if (cls == long.class) return in.readLong();
if (cls == float.class) return in.readFloat();
if (cls == double.class) return in.readDouble();
if (cls == boolean.class) return in.readBoolean();
if (cls == char.class) return in.readChar();
throw new IllegalArgumentException();
}