Mercurial > hg > Members > sugi > MessagePack-java
diff src/main/java/org/msgpack/template/ValueTemplate.java @ 0:cb825acd883a
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author | sugi |
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date | Sat, 18 Oct 2014 15:06:15 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/main/java/org/msgpack/template/ValueTemplate.java Sat Oct 18 15:06:15 2014 +0900 @@ -0,0 +1,55 @@ +// +// MessagePack for Java +// +// Copyright (C) 2009 - 2013 FURUHASHI Sadayuki +// +// 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 org.msgpack.template; + +import java.io.IOException; +import org.msgpack.packer.Packer; +import org.msgpack.unpacker.Unpacker; +import org.msgpack.MessageTypeException; +import org.msgpack.type.Value; + +public class ValueTemplate extends AbstractTemplate<Value> { + private ValueTemplate() { + } + + public void write(Packer pk, Value target, boolean required) + throws IOException { + if (target == null) { + if (required) { + throw new MessageTypeException("Attempted to write null"); + } + pk.writeNil(); + return; + } + target.writeTo(pk); + } + + public Value read(Unpacker u, Value to, boolean required) + throws IOException { + if (!required && u.trySkipNil()) { + return null; + } + return u.readValue(); + } + + static public ValueTemplate getInstance() { + return instance; + } + + static final ValueTemplate instance = new ValueTemplate(); +}