import MessagePack for Java

java/src/org/msgpack/schema/GenericClassSchema.java

@@ -0,0 +1,91 @@
+//
+// MessagePack for Java
+//
+// Copyright (C) 2009-2010 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.schema;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+import java.io.IOException;
+import org.msgpack.*;
+
+public class GenericClassSchema extends ClassSchema {
+	public GenericClassSchema(
+			String name, String namespace,
+			List<String> imports, List<FieldSchema> fields) {
+		super(name, namespace, imports, fields);
+	}
+
+	@Override
+	@SuppressWarnings("unchecked")
+	public void pack(Packer pk, Object obj) throws IOException {
+		if(obj instanceof Map) {
+			Map d = (Map)obj;
+			pk.packArray(fields.length);
+			for(int i=0; i < fields.length; ++i) {
+				FieldSchema f = fields[i];
+				f.getSchema().pack(pk, d.get(f.getName()));
+			}
+
+		} else if(obj == null) {
+			pk.packNil();
+
+		} else {
+			throw MessageTypeException.invalidConvert(obj, this);
+		}
+	}
+
+	@Override
+	public Object convert(Object obj) throws MessageTypeException {
+		if(obj instanceof Collection) {
+			// FIXME optimize
+			return createFromArray( ((Collection)obj).toArray() );
+
+		} else if(obj instanceof Map) {
+			HashMap<String,Object> m = new HashMap<String,Object>(fields.length);
+			Map d = (Map)obj;
+			for(int i=0; i < fields.length; ++i) {
+				FieldSchema f = fields[i];
+				String fieldName = f.getName();
+				m.put(fieldName, f.getSchema().convert(d.get(fieldName)));
+			}
+			return m;
+
+		} else {
+			throw MessageTypeException.invalidConvert(obj, this);
+		}
+	}
+
+	public Schema getElementSchema(int index) {
+		// FIXME check index < fields.length
+		return fields[index].getSchema();
+	}
+
+	public Object createFromArray(Object[] obj) {
+		HashMap<String,Object> m = new HashMap<String,Object>(fields.length);
+		int i=0;
+		for(; i < obj.length; ++i) {
+			m.put(fields[i].getName(), obj[i]);
+		}
+		for(; i < fields.length; ++i) {
+			m.put(fields[i].getName(), null);
+		}
+		return m;
+	}
+}
+