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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.qpid.amqp_1_0.codec;
import java.util.Iterator;
import java.util.Map;
public class MapWriter extends AbstractMapWriter<Map>
{
private Map _map;
private Object _value;
private Iterator<Map.Entry> _iterator;
public MapWriter(final Registry registry)
{
super(registry);
}
@Override
protected void onSetValue(final Map value)
{
_map = value;
_iterator = value.entrySet().iterator();
}
@Override
protected int getMapCount()
{
return _map.size();
}
@Override
protected boolean hasMapNext()
{
return _iterator.hasNext();
}
@Override
protected Object nextKey()
{
Map.Entry entry = _iterator.next();
_value = entry.getValue();
return entry.getKey();
}
@Override
protected Object nextValue()
{
Object value = _value;
_value = null;
return value;
}
@Override
protected void onClear()
{
_map = null;
_iterator = null;
_value = null;
}
@Override
protected void onReset()
{
_iterator = _map.entrySet().iterator();
_value = null;
}
private static Factory<Map> FACTORY = new Factory<Map>()
{
public ValueWriter<Map> newInstance(Registry registry)
{
return new MapWriter(registry);
}
};
public static void register(ValueWriter.Registry registry)
{
registry.register(Map.class, FACTORY);
}
}
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