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A bundle project producing JAX-RS RI bundles. The primary artifact is an "all-in-one" OSGi-fied JAX-RS RI bundle
(jaxrs-ri.jar).
Attached to that are two compressed JAX-RS RI archives. The first archive (jaxrs-ri.zip) consists of binary RI bits and
contains the API jar (under "api" directory), RI libraries (under "lib" directory) as well as all external
RI dependencies (under "ext" directory). The secondary archive (jaxrs-ri-src.zip) contains buildable JAX-RS RI source
bundle and contains the API jar (under "api" directory), RI sources (under "src" directory) as well as all external
RI dependencies (under "ext" directory). The second archive also contains "build.xml" ANT script that builds the RI
sources. To build the JAX-RS RI simply unzip the archive, cd to the created jaxrs-ri directory and invoke "ant" from
the command line.
/*
* Copyright (c) 2013, 2019 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.jersey.server.internal.monitoring;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.atomic.AtomicReference;
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;
/**
* Immutable resource statistics implementation.
*
* @author Miroslav Fuksa
* @author Stepan Vavra
*/
final class ResourceStatisticsImpl implements ResourceStatistics {
/**
* Builder of resource statistics instances.
*
* Must be thread-safe.
*/
static class Builder {
private final ConcurrentMap methodsBuilders = new ConcurrentHashMap<>();
private final ResourceMethodStatisticsImpl.Factory methodFactory;
private final AtomicReference resourceExecutionStatisticsBuilder = new
AtomicReference<>();
private final AtomicReference requestExecutionStatisticsBuilder = new
AtomicReference<>();
private volatile 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}.
*
* Note that this build method is called from various different threads.
*
* @return New instance of resource statistics.
*/
ResourceStatisticsImpl build() {
ResourceStatisticsImpl cachedReference = cached;
if (cachedReference != null) {
return cachedReference;
}
final Map resourceMethods = new HashMap<>();
for (final ResourceMethodStatisticsImpl.Builder builder : methodsBuilders.keySet()) {
final ResourceMethodStatisticsImpl stats = builder.build();
resourceMethods.put(stats.getResourceMethod(), stats);
}
final ExecutionStatistics resourceStats = resourceExecutionStatisticsBuilder.get() == null
? ExecutionStatisticsImpl.EMPTY : resourceExecutionStatisticsBuilder.get().build();
final ExecutionStatistics requestStats = requestExecutionStatisticsBuilder.get() == null
? ExecutionStatisticsImpl.EMPTY : requestExecutionStatisticsBuilder.get().build();
final ResourceStatisticsImpl stats = new ResourceStatisticsImpl(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.get() == null) {
resourceExecutionStatisticsBuilder.compareAndSet(null, new ExecutionStatisticsImpl.Builder());
}
resourceExecutionStatisticsBuilder.get().addExecution(methodStartTime, methodDuration);
if (requestExecutionStatisticsBuilder.get() == null) {
requestExecutionStatisticsBuilder.compareAndSet(null, new ExecutionStatisticsImpl.Builder());
}
requestExecutionStatisticsBuilder.get().addExecution(requestStartTime, requestDuration);
addMethod(resourceMethod);
}
/**
* Add a resource method to the statistics.
*
* @param resourceMethod Resource method.
*/
void addMethod(final ResourceMethod resourceMethod) {
cached = null;
getOrCreate(resourceMethod);
}
private ResourceMethodStatisticsImpl.Builder getOrCreate(final ResourceMethod resourceMethod) {
final ResourceMethodStatisticsImpl.Builder methodStats = methodFactory.getOrCreate(resourceMethod);
methodsBuilders.putIfAbsent(methodStats, Boolean.TRUE);
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 = Collections.unmodifiableMap(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() {
// this object is immutable and all the other accessible objects as well
return this;
}
}