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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.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.atomic.AtomicReference;
import org.glassfish.jersey.server.model.ResourceMethod;
import org.glassfish.jersey.server.monitoring.ExecutionStatistics;
import org.glassfish.jersey.server.monitoring.ResourceMethodStatistics;
/**
* Immutable resource method statistics.
*
* @author Miroslav Fuksa
* @author Stepan Vavra
*/
final class ResourceMethodStatisticsImpl implements ResourceMethodStatistics {
/**
* Factory for creating and storing resource method statistics. One instance per resource method.
*
* Must be thread-safe.
*/
static class Factory {
private final ConcurrentMap stringToMethodsBuilders = new ConcurrentHashMap<>();
ResourceMethodStatisticsImpl.Builder getOrCreate(final ResourceMethod resourceMethod) {
final String methodUniqueId = MonitoringUtils.getMethodUniqueId(resourceMethod);
if (!stringToMethodsBuilders.containsKey(methodUniqueId)) {
stringToMethodsBuilders.putIfAbsent(methodUniqueId, new ResourceMethodStatisticsImpl.Builder(resourceMethod));
}
return stringToMethodsBuilders.get(methodUniqueId);
}
}
/**
* Builder of resource method statistics.
*
* Must be thread-safe.
*/
static class Builder {
private final ResourceMethod resourceMethod;
private final AtomicReference resourceMethodExecutionStatisticsBuilder = new
AtomicReference<>();
private final AtomicReference requestExecutionStatisticsBuilder = new
AtomicReference<>();
private volatile ResourceMethodStatisticsImpl cached;
/**
* Create a new builder instance.
*
* @param resourceMethod Resource method for which statistics are evaluated.
*/
Builder(final ResourceMethod resourceMethod) {
this.resourceMethod = resourceMethod;
}
/**
* Build an instance of resource method statistics.
*
* @return New instance of resource method statistics.
*/
ResourceMethodStatisticsImpl build() {
ResourceMethodStatisticsImpl cachedLocalReference = cached;
if (cachedLocalReference != null) {
return cachedLocalReference;
}
final ExecutionStatistics methodStats = resourceMethodExecutionStatisticsBuilder.get() == null
? ExecutionStatisticsImpl.EMPTY : resourceMethodExecutionStatisticsBuilder.get().build();
final ExecutionStatistics requestStats = requestExecutionStatisticsBuilder.get() == null
? ExecutionStatisticsImpl.EMPTY : requestExecutionStatisticsBuilder.get().build();
final ResourceMethodStatisticsImpl stats = new ResourceMethodStatisticsImpl(resourceMethod, methodStats,
requestStats);
if (MonitoringUtils.isCacheable(methodStats)) {
// overwrite the cache regardless of whether it's null or not
cached = stats;
}
return stats;
}
/**
* Add execution of the resource method to the statistics.
*
* @param methodStartTime Time spent on execution of resource method itself (Unix timestamp format).
* @param methodDuration Time of execution of the resource method.
* @param requestStartTime Time of whole request processing (from receiving the request until writing the response). (Unix
* timestamp format)
* @param requestDuration Time when the request matching to the executed resource method has been received by Jersey.
*/
void addResourceMethodExecution(final long methodStartTime, final long methodDuration, final long requestStartTime,
final long requestDuration) {
cached = null;
if (resourceMethodExecutionStatisticsBuilder.get() == null) {
resourceMethodExecutionStatisticsBuilder.compareAndSet(null, new ExecutionStatisticsImpl.Builder());
}
resourceMethodExecutionStatisticsBuilder.get().addExecution(methodStartTime, methodDuration);
if (requestExecutionStatisticsBuilder.get() == null) {
requestExecutionStatisticsBuilder.compareAndSet(null, new ExecutionStatisticsImpl.Builder());
}
requestExecutionStatisticsBuilder.get().addExecution(requestStartTime, requestDuration);
}
}
private final ExecutionStatistics resourceMethodExecutionStatistics;
private final ExecutionStatistics requestExecutionStatistics;
private final ResourceMethod resourceMethod;
private ResourceMethodStatisticsImpl(final ResourceMethod resourceMethod,
final ExecutionStatistics resourceMethodExecutionStatistics,
final ExecutionStatistics requestExecutionStatistics) {
this.resourceMethod = resourceMethod;
this.resourceMethodExecutionStatistics = resourceMethodExecutionStatistics;
this.requestExecutionStatistics = requestExecutionStatistics;
}
@Override
public ExecutionStatistics getRequestStatistics() {
return requestExecutionStatistics;
}
@Override
public ExecutionStatistics getMethodStatistics() {
return resourceMethodExecutionStatistics;
}
public ResourceMethod getResourceMethod() {
return resourceMethod;
}
@Override
public ResourceMethodStatistics snapshot() {
// this object is immutable (not considering ResourceMethod which is not a monitoring object)
return this;
}
}