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package org.glassfish.jersey.message.internal;
import java.util.Collection;
import org.glassfish.jersey.internal.PropertiesDelegate;
/**
* Delegating properties delegate backed by another {@code PropertiesDelegate} with implemented "cache" or direct reference to
* tracing support related classes (e.g. {@code TracingLogger}) to improve performance of lookup tracing context instance.
*
* @author Libor Kramolis (libor.kramolis at oracle.com)
* @since 2.3
*/
public final class TracingAwarePropertiesDelegate implements PropertiesDelegate {
private final PropertiesDelegate propertiesDelegate;
private TracingLogger tracingLogger;
/**
* Create new tracing aware properties delegate wrapper.
*
* @param propertiesDelegate wrapped delegate.
*/
public TracingAwarePropertiesDelegate(PropertiesDelegate propertiesDelegate) {
this.propertiesDelegate = propertiesDelegate;
}
@Override
public void removeProperty(String name) {
if (TracingLogger.PROPERTY_NAME.equals(name)) {
tracingLogger = null;
}
propertiesDelegate.removeProperty(name);
}
@Override
public void setProperty(String name, Object object) {
if (TracingLogger.PROPERTY_NAME.equals(name)) {
tracingLogger = (TracingLogger) object;
}
propertiesDelegate.setProperty(name, object);
}
@Override
public Object getProperty(String name) {
if (tracingLogger != null && TracingLogger.PROPERTY_NAME.equals(name)) {
return tracingLogger;
}
return propertiesDelegate.getProperty(name);
}
@Override
public Collection getPropertyNames() {
return propertiesDelegate.getPropertyNames();
}
}