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package org.apache.qpid.thread;
import java.lang.reflect.Constructor;
public class RealtimeThreadFactory implements ThreadFactory
{
private Class threadClass;
private Constructor threadConstructor;
private Constructor priorityParameterConstructor;
private int defaultRTThreadPriority = 20;
public RealtimeThreadFactory() throws Exception
{
defaultRTThreadPriority = Integer.getInteger("qpid.rt_thread_priority",20);
threadClass = Class.forName("javax.realtime.RealtimeThread");
Class schedulingParametersClass = Class.forName("javax.realtime.SchedulingParameters");
Class releaseParametersClass = Class.forName("javax.realtime.ReleaseParameters");
Class memoryParametersClass = Class.forName("javax.realtime.MemoryParameters");
Class memoryAreaClass = Class.forName("javax.realtime.MemoryArea");
Class processingGroupParametersClass = Class.forName("javax.realtime.ProcessingGroupParameters");
Class[] paramTypes = new Class[]{schedulingParametersClass,
releaseParametersClass,
memoryParametersClass,
memoryAreaClass,
processingGroupParametersClass,
java.lang.Runnable.class};
threadConstructor = threadClass.getConstructor(paramTypes);
Class priorityParameterClass = Class.forName("javax.realtime.PriorityParameters");
priorityParameterConstructor = priorityParameterClass.getConstructor(new Class[]{int.class});
}
public Thread createThread(Runnable r) throws Exception
{
return createThread(r,defaultRTThreadPriority);
}
public Thread createThread(Runnable r, int priority) throws Exception
{
Object priorityParams = priorityParameterConstructor.newInstance(priority);
return (Thread)threadConstructor.newInstance(priorityParams,null,null,null,null,r);
}
}
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