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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 org.apache.qpid.amqp_1_0.type.Symbol;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
public class SymbolWriter extends VariableWidthWriter<Symbol>
{
private static final Charset ENCODING_CHARSET = Charset.forName("US-ASCII");
public static final byte LARGE_ENCODING_CODE = (byte) 0xb3;
public static final byte SMALL_ENCODING_CODE = (byte) 0xa3;
private Symbol _value;
@Override
protected byte getFourOctetEncodingCode()
{
return LARGE_ENCODING_CODE;
}
@Override
protected byte getSingleOctetEncodingCode()
{
return SMALL_ENCODING_CODE;
}
@Override
public void setValue(Symbol value)
{
_value = value;
super.setValue(value);
}
public boolean isCacheable()
{
return true;
}
@Override
protected void clearValue()
{
_value = null;
}
@Override
protected boolean hasValue()
{
return _value != null;
}
@Override
protected int getLength()
{
return _value.length();
}
@Override
protected void writeBytes(ByteBuffer buf, int offset, int length)
{
int end = offset + length;
for(int i = offset; i < end; i++)
{
buf.put((byte)_value.charAt(i));
}
}
private static Factory<Symbol> FACTORY = new Factory<Symbol>()
{
public ValueWriter<Symbol> newInstance(Registry registry)
{
return new SymbolWriter();
}
};
public static void register(ValueWriter.Registry registry)
{
registry.register(Symbol.class, FACTORY);
}
}
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