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/*
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*
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* and Distribution License("CDDL") (collectively, the "License"). You
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package org.glassfish.jersey.server.internal.monitoring;
import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.glassfish.jersey.server.model.Resource;
import org.glassfish.jersey.server.model.ResourceMethod;
import org.glassfish.jersey.server.monitoring.ExecutionStatistics;
import org.glassfish.jersey.server.monitoring.ResourceMethodStatistics;
import org.glassfish.jersey.server.monitoring.ResourceStatistics;
import jersey.repackaged.com.google.common.collect.Maps;
/**
* Resource statistics implementation.
*
* @author Miroslav Fuksa (miroslav.fuksa at oracle.com)
*/
final class ResourceStatisticsImpl implements ResourceStatistics {
/**
* Builder of resource statistics instances.
*/
static class Builder {
private final Set methodsBuilders = new HashSet<>();
private final ResourceMethodStatisticsImpl.Factory methodFactory;
private ExecutionStatisticsImpl.Builder resourceExecutionStatisticsBuilder;
private ExecutionStatisticsImpl.Builder requestExecutionStatisticsBuilder;
private ResourceStatisticsImpl cached;
/**
* Create a new builder.
*
* @param resource Resource for which the instance is created.
*/
Builder(final Resource resource, final ResourceMethodStatisticsImpl.Factory methodFactory) {
this(methodFactory);
for (final ResourceMethod method : resource.getResourceMethods()) {
getOrCreate(method);
}
}
/**
* Create a new builder.
*/
Builder(final ResourceMethodStatisticsImpl.Factory methodFactory) {
this.methodFactory = methodFactory;
}
/**
* Build a new instance of {@link ResourceStatisticsImpl}.
*
* @return New instance of resource statistics.
*/
ResourceStatisticsImpl build() {
if (cached != null) {
return cached;
}
final Map resourceMethods = Maps.newHashMap();
for (final ResourceMethodStatisticsImpl.Builder builder : methodsBuilders) {
final ResourceMethodStatisticsImpl stats = builder.build();
resourceMethods.put(stats.getResourceMethod(), stats);
}
final ExecutionStatistics resourceStats = resourceExecutionStatisticsBuilder == null ?
ExecutionStatisticsImpl.EMPTY : resourceExecutionStatisticsBuilder.build();
final ExecutionStatistics requestStats = requestExecutionStatisticsBuilder == null ?
ExecutionStatisticsImpl.EMPTY : requestExecutionStatisticsBuilder.build();
final ResourceStatisticsImpl stats = new ResourceStatisticsImpl(Collections.unmodifiableMap(resourceMethods),
resourceStats, requestStats);
if (MonitoringUtils.isCacheable(requestStats)) {
cached = stats;
}
return stats;
}
/**
* Add execution of a resource method in the resource.
*
* @param resourceMethod Resource method executed.
* @param methodStartTime Time of execution of the resource method.
* @param methodDuration Time spent on execution of resource method itself.
* @param requestStartTime Time when the request matching to the executed resource method has been received
* by Jersey.
* @param requestDuration Time of whole request processing (from receiving the request until writing the response).
*/
void addExecution(final ResourceMethod resourceMethod, final long methodStartTime, final long methodDuration,
final long requestStartTime, final long requestDuration) {
cached = null;
if (resourceExecutionStatisticsBuilder == null) {
resourceExecutionStatisticsBuilder = new ExecutionStatisticsImpl.Builder();
}
resourceExecutionStatisticsBuilder.addExecution(methodStartTime, methodDuration);
if (requestExecutionStatisticsBuilder == null) {
requestExecutionStatisticsBuilder = new ExecutionStatisticsImpl.Builder();
}
requestExecutionStatisticsBuilder.addExecution(requestStartTime, requestDuration);
addMethod(resourceMethod);
}
/**
* Add a resource method to the statistics.
*
* @param resourceMethod Resource method.
*/
void addMethod(final ResourceMethod resourceMethod) {
getOrCreate(resourceMethod);
}
private ResourceMethodStatisticsImpl.Builder getOrCreate(final ResourceMethod resourceMethod) {
final ResourceMethodStatisticsImpl.Builder methodStats = methodFactory.getOrCreate(resourceMethod);
if (!methodsBuilders.contains(methodStats)) {
methodsBuilders.add(methodStats);
}
return methodStats;
}
}
private final Map resourceMethods;
private final ExecutionStatistics resourceExecutionStatistics;
private final ExecutionStatistics requestExecutionStatistics;
private ResourceStatisticsImpl(final Map resourceMethods,
final ExecutionStatistics resourceExecutionStatistics,
final ExecutionStatistics requestExecutionStatistics) {
this.resourceMethods = resourceMethods;
this.resourceExecutionStatistics = resourceExecutionStatistics;
this.requestExecutionStatistics = requestExecutionStatistics;
}
@Override
public ExecutionStatistics getResourceMethodExecutionStatistics() {
return resourceExecutionStatistics;
}
@Override
public ExecutionStatistics getRequestExecutionStatistics() {
return requestExecutionStatistics;
}
@Override
public Map getResourceMethodStatistics() {
return resourceMethods;
}
@Override
public ResourceStatistics snapshot() {
// snapshot functionality not yet implemented
return this;
}
}