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//
// MessagePack for Java
//
// Copyright (C) 2009 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;
}
}
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