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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.Map;
import java.util.HashMap;
import java.io.IOException;
import org.msgpack.*;
public class MapSchema extends Schema implements IMapSchema {
private Schema keySchema;
private Schema valueSchema;
public MapSchema(Schema keySchema, Schema valueSchema) {
super("map");
this.keySchema = keySchema;
this.valueSchema = valueSchema;
}
@Override
public String getFullName() {
return "HashList<"+keySchema.getFullName()+", "+valueSchema.getFullName()+">";
}
@Override
public String getExpression() {
return "(map "+keySchema.getExpression()+" "+valueSchema.getExpression()+")";
}
@Override
@SuppressWarnings("unchecked")
public void pack(Packer pk, Object obj) throws IOException {
if(obj instanceof Map) {
Map<Object,Object> d = (Map<Object,Object>)obj;
pk.packMap(d.size());
for(Map.Entry<Object,Object> e : d.entrySet()) {
keySchema.pack(pk, e.getKey());
valueSchema.pack(pk, e.getValue());
}
} else if(obj == null) {
pk.packNil();
} else {
throw MessageTypeException.invalidConvert(obj, this);
}
}
@Override
@SuppressWarnings("unchecked")
public Object convert(Object obj) throws MessageTypeException {
if(obj instanceof Map) {
Map<Object,Object> d = (Map<Object,Object>)obj;
Map<Object,Object> m = new HashMap<Object,Object>();
for(Map.Entry<Object,Object> e : d.entrySet()) {
m.put(keySchema.convert(e.getKey()), valueSchema.convert(e.getValue()));
}
return m;
} else {
throw MessageTypeException.invalidConvert(obj, this);
}
}
@Override
public Schema getKeySchema() {
return keySchema;
}
@Override
public Schema getValueSchema() {
return valueSchema;
}
@Override
public Object createFromMap(Object[] obj) {
HashMap m = new HashMap(obj.length / 2);
int i = 0;
while(i < obj.length) {
Object k = obj[i++];
Object v = obj[i++];
m.put(k, v);
}
return m;
}
}
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