NoOpInheritableStrategy.java

package com.orbitz.monitoring.api.engine;

import com.orbitz.monitoring.api.CompositeMonitor;
import com.orbitz.monitoring.api.InheritableStrategy;
import com.orbitz.monitoring.api.Monitor;
import com.orbitz.monitoring.api.monitor.AttributeHolder;

import java.util.Collections;
import java.util.Map;

/**
 * A strategy that doesn't provide any inheritance. This should be used to improve running time and
 * reduce memory usage when inheritance isn't needed.<br />
 * Created: Apr 6, 2011
 * @author John VanDerpol
 */
public class NoOpInheritableStrategy implements InheritableStrategy {
  
  public int clearCurrentThread() {
    return 0;
  }
  
  public void compositeMonitorCompleted(final CompositeMonitor monitor) {
    // NOOP
  }
  
  public void compositeMonitorStarted(final CompositeMonitor compositeMonitor) {
    // NOOP
  }
  
  public CompositeMonitor getCompositeMonitorNamed(final String name) {
    return null;
  }
  
  public Map<?, ?> getInheritableAttributes() {
    return Collections.emptyMap();
  }
  
  public void processMonitorForCompositeMonitor(final Monitor monitor) {
    // NOOP
  }
  
  public void setInheritable(final CompositeMonitor monitor, final String key,
      final AttributeHolder original) {
    // NOOP
  }
  
  public void shutdown() {
    // NOOP
  }
  
  public void startup() {
    // NOOP
  }
}