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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 *    Copyright (c) [2018-2023] Payara Foundation and/or its affiliates. All rights reserved.
 *
 *     The contents of this file are subject to the terms of either the GNU
 *     General Public License Version 2 only ("GPL") or the Common Development
 *     and Distribution License("CDDL") (collectively, the "License").  You
 *     may not use this file except in compliance with the License.  You can
 *     obtain a copy of the License at
 *     https://github.com/payara/Payara/blob/master/LICENSE.txt
 *     See the License for the specific
 *     language governing permissions and limitations under the License.
 *
 *     When distributing the software, include this License Header Notice in each
 *     file and include the License file at glassfish/legal/LICENSE.txt.
 *
 *     GPL Classpath Exception:
 *     The Payara Foundation designates this particular file as subject to the "Classpath"
 *     exception as provided by the Payara Foundation in the GPL Version 2 section of the License
 *     file that accompanied this code.
 *
 *     Modifications:
 *     If applicable, add the following below the License Header, with the fields
 *     enclosed by brackets [] replaced by your own identifying information:
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 *
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 *     If you wish your version of this file to be governed by only the CDDL or
 *     only the GPL Version 2, indicate your decision by adding "[Contributor]
 *     elects to include this software in this distribution under the [CDDL or GPL
 *     Version 2] license."  If you don't indicate a single choice of license, a
 *     recipient has the option to distribute your version of this file under
 *     either the CDDL, the GPL Version 2 or to extend the choice of license to
 *     its licensees as provided above.  However, if you add GPL Version 2 code
 *     and therefore, elected the GPL Version 2 license, then the option applies
 *     only if the new code is made subject to such option by the copyright
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 */
package fish.payara.microprofile.metrics.cdi.producer;

import fish.payara.microprofile.metrics.MetricsService;
import fish.payara.microprofile.metrics.MetricsService.MetricsContext;

import jakarta.annotation.PostConstruct;
import jakarta.enterprise.context.ApplicationScoped;
import jakarta.enterprise.inject.Default;
import jakarta.enterprise.inject.Produces;
import jakarta.enterprise.inject.spi.InjectionPoint;
import org.eclipse.microprofile.metrics.MetricRegistry;
import static org.eclipse.microprofile.metrics.MetricRegistry.Type.APPLICATION;
import static org.eclipse.microprofile.metrics.MetricRegistry.Type.BASE;
import static org.eclipse.microprofile.metrics.MetricRegistry.Type.VENDOR;

import org.eclipse.microprofile.metrics.annotation.RegistryScope;
import org.eclipse.microprofile.metrics.annotation.RegistryType;
import org.glassfish.internal.api.Globals;

@ApplicationScoped
public class MetricRegistryProducer {

    private MetricsService metricsService;

    @PostConstruct
    public void init() {
        metricsService = Globals.getDefaultBaseServiceLocator().getService(MetricsService.class);
    }

    @Produces
    @Default
    @RegistryScope
    public MetricRegistry getMetricRegistry(InjectionPoint injectionPoint) {
        RegistryScope registryScope = injectionPoint.getAnnotated().getAnnotation(RegistryScope.class);
        if(registryScope == null) {
            return getApplicationRegistry();
        } else {
            String customScope = registryScope.scope();
            return getContext().getOrCreateRegistry(customScope);
        }
    }

    @Produces
    @RegistryType(type = BASE)
    public MetricRegistry getBaseRegistry() {
        return getContext().getBaseRegistry();
    }

    @Produces
    @RegistryType(type = APPLICATION)
    public MetricRegistry getApplicationRegistry() {
        return getContext().getApplicationRegistry();
    }

    @Produces
    @RegistryType(type = VENDOR)
    public MetricRegistry getVendorRegistry() {
        return getContext().getVendorRegistry();
    }

    private MetricsContext getContext() {
        return metricsService.getContext(true);
    }
}




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