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package org.glassfish.jersey.message.internal;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collection;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.ext.InterceptorContext;
import javax.ws.rs.ext.ReaderInterceptorContext;
import javax.ws.rs.ext.WriterInterceptorContext;
import org.glassfish.jersey.internal.PropertiesDelegate;
/**
* Abstract class with implementation of {@link InterceptorContext} which is common for {@link ReaderInterceptorContext}
* and {@link WriterInterceptorContext} implementations.
*
* @author Miroslav Fuksa (miroslav.fuksa at oracle.com)
*/
abstract class InterceptorExecutor implements InterceptorContext, PropertiesDelegate {
private final PropertiesDelegate propertiesDelegate;
private Annotation[] annotations;
private Class type;
private Type genericType;
private MediaType mediaType;
private final TracingLogger tracingLogger;
private InterceptorTimestampPair lastTracedInterceptor;
/**
* Holder of interceptor instance and timestamp of the interceptor invocation (in ns).
*/
private static class InterceptorTimestampPair {
private final T interceptor;
private final long timestamp;
private InterceptorTimestampPair(T interceptor, long timestamp) {
this.interceptor = interceptor;
this.timestamp = timestamp;
}
private T getInterceptor() {
return interceptor;
}
private long getTimestamp() {
return timestamp;
}
}
/**
* Constructor initializes common properties of this abstract class.
*
* @param rawType raw Java entity type.
* @param type generic Java entity type.
* @param annotations Annotations on the formal declaration of the resource
* method parameter that is the target of the message body
* conversion. See {@link InterceptorContext#getAnnotations()}.
* @param mediaType MediaType of HTTP entity. See {@link InterceptorContext#getMediaType()}.
* @param propertiesDelegate request-scoped properties delegate.
*/
public InterceptorExecutor(Class rawType, Type type, Annotation[] annotations, MediaType mediaType,
PropertiesDelegate propertiesDelegate) {
super();
this.type = rawType;
this.genericType = type;
this.annotations = annotations;
this.mediaType = mediaType;
this.propertiesDelegate = propertiesDelegate;
this.tracingLogger = TracingLogger.getInstance(propertiesDelegate);
}
@Override
public Object getProperty(String name) {
return propertiesDelegate.getProperty(name);
}
@Override
public Collection getPropertyNames() {
return propertiesDelegate.getPropertyNames();
}
@Override
public void setProperty(String name, Object object) {
propertiesDelegate.setProperty(name, object);
}
@Override
public void removeProperty(String name) {
propertiesDelegate.removeProperty(name);
}
/**
* Get tracing logger instance configured in via properties.
*
* @return tracing logger instance.
*/
protected final TracingLogger getTracingLogger() {
return tracingLogger;
}
/**
* Tracing support - log invocation of interceptor BEFORE context.proceed() call.
*
* @param interceptor invoked interceptor
* @param event event type to be tested
*/
protected final void traceBefore(T interceptor, TracingLogger.Event event) {
if (tracingLogger.isLogEnabled(event)) {
if ((lastTracedInterceptor != null) && (interceptor != null)) {
tracingLogger.logDuration(event, lastTracedInterceptor.getTimestamp(), lastTracedInterceptor.getInterceptor());
}
lastTracedInterceptor = new InterceptorTimestampPair(interceptor, System.nanoTime());
}
}
/**
* Tracing support - log invocation of interceptor AFTER context.proceed() call.
*
* @param interceptor invoked interceptor
* @param event event type to be tested
*/
protected final void traceAfter(T interceptor, TracingLogger.Event event) {
if (tracingLogger.isLogEnabled(event)) {
if ((lastTracedInterceptor != null) && (lastTracedInterceptor.getInterceptor() != null)) {
tracingLogger.logDuration(event, lastTracedInterceptor.getTimestamp(), interceptor);
}
lastTracedInterceptor = new InterceptorTimestampPair(interceptor, System.nanoTime());
}
}
/**
* Clear last traced interceptor information.
*/
protected final void clearLastTracedInterceptor(){
lastTracedInterceptor = null;
}
@Override
public Annotation[] getAnnotations() {
return annotations;
}
@Override
public void setAnnotations(Annotation[] annotations) {
if (annotations == null) {
throw new NullPointerException("Annotations must not be null.");
}
this.annotations = annotations;
}
@Override
public Class getType() {
return this.type;
}
@Override
public void setType(Class type) {
this.type = type;
}
@Override
public Type getGenericType() {
return genericType;
}
@Override
public void setGenericType(Type genericType) {
this.genericType = genericType;
}
@Override
public MediaType getMediaType() {
return mediaType;
}
@Override
public void setMediaType(MediaType mediaType) {
this.mediaType = mediaType;
}
}