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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.disttest.client.property;
/**
* Provides support to generate message property values.
*/
public abstract class GeneratedPropertySupport implements GeneratedPropertyValue
{
private Object _lastValue;
public GeneratedPropertySupport()
{
super();
_lastValue = null;
}
@Override
public Object getValue()
{
Object result = nextValue();
result = evaluate(result);
synchronized(this)
{
_lastValue = result;
}
return result;
}
protected Object evaluate(Object result)
{
while (result instanceof PropertyValue)
{
result = ((PropertyValue)result).getValue();
}
return result;
}
public abstract Object nextValue();
public synchronized Object getLastValue()
{
return _lastValue;
}
@Override
public String toString()
{
return "GeneratedPropertyValue [value=" + getLastValue() + ", @def=" + getDefinition() + "]";
}
}
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