athenz.shade.zts.org.glassfish.jersey.jackson.internal.jackson.jaxrs.cfg.ObjectReaderInjector Maven / Gradle / Ivy
package athenz.shade.zts.athenz.shade.zts.org.glassfish.jersey.jackson.internal.jackson.jaxrs.cfg;
import java.util.concurrent.atomic.AtomicBoolean;
import athenz.shade.zts.athenz.shade.zts.com.fasterxml.jackson.databind.ObjectReader;
/**
* Based on ideas from [Issue#32], this class allows registering a
* modifier ({@link ObjectReaderModifier}) that can be used to
* reconfigure {@link ObjectReader}
* that JAX-RS Resource will use for reading input into Java Objects.
* Usually this class is accessed from a Servlet or JAX-RS filter
* before execution reaches resource.
*
* @since 2.3
*/
public class ObjectReaderInjector
{
protected static final ThreadLocal _threadLocal = new ThreadLocal();
/**
* Simple marker used to optimize out {@link ThreadLocal} access in cases
* where this feature is not being used
*/
protected static final AtomicBoolean _hasBeenSet = new AtomicBoolean(false);
private ObjectReaderInjector() { }
public static void set(ObjectReaderModifier mod) {
_hasBeenSet.set(true);
_threadLocal.set(mod);
}
public static ObjectReaderModifier get() {
return _hasBeenSet.get() ? _threadLocal.get() : null;
}
public static ObjectReaderModifier getAndClear() {
ObjectReaderModifier mod = get();
if (mod != null) {
_threadLocal.remove();
}
return mod;
}
}