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ffang pushed a commit to branch 3.6.x-fixes
in repository https://gitbox.apache.org/repos/asf/cxf.git


The following commit(s) were added to refs/heads/3.6.x-fixes by this push:
     new ad571a53e9 [CXF-9170]avoid unecessary MetricsContext being created and 
added to the MessageExchange (#2669)
ad571a53e9 is described below

commit ad571a53e98dbf6bc3901eede908f07f9d4f8892
Author: Freeman(Yue) Fang <[email protected]>
AuthorDate: Tue Oct 21 09:01:14 2025 -0400

    [CXF-9170]avoid unecessary MetricsContext being created and added to the 
MessageExchange (#2669)
    
    (cherry picked from commit 44e7a08283da59df8cbd66f785831c78f4b2ecb2)
    (cherry picked from commit fa7fc1214d1c50be6eaef4be18f46dd3f00dbae9)
---
 .../org/apache/cxf/metrics/ExchangeMetrics.java    |   8 +-
 .../interceptors/AbstractMetricsInterceptor.java   |  15 +-
 .../jaxws/MicrometerMetricsHttpProvider.java       | 120 +++++++++++++
 ...ionWithoutViolationMetricsClientServerTest.java | 187 +++++++++++++++++++++
 4 files changed, 326 insertions(+), 4 deletions(-)

diff --git 
a/rt/features/metrics/src/main/java/org/apache/cxf/metrics/ExchangeMetrics.java 
b/rt/features/metrics/src/main/java/org/apache/cxf/metrics/ExchangeMetrics.java
index b8407955ce..221467c7bd 100644
--- 
a/rt/features/metrics/src/main/java/org/apache/cxf/metrics/ExchangeMetrics.java
+++ 
b/rt/features/metrics/src/main/java/org/apache/cxf/metrics/ExchangeMetrics.java
@@ -40,9 +40,11 @@ public class ExchangeMetrics {
     }
 
     public ExchangeMetrics addContext(MetricsContext ctx) {
-        contexts.addLast(ctx);
-        if (started) {
-            ctx.start(exchange);
+        if (!contexts.contains(ctx)) {
+            contexts.addLast(ctx);
+            if (started) {
+                ctx.start(exchange);
+            }
         }
         return this;
     }
diff --git 
a/rt/features/metrics/src/main/java/org/apache/cxf/metrics/interceptors/AbstractMetricsInterceptor.java
 
b/rt/features/metrics/src/main/java/org/apache/cxf/metrics/interceptors/AbstractMetricsInterceptor.java
index b5e7000f3b..e4ff43934e 100644
--- 
a/rt/features/metrics/src/main/java/org/apache/cxf/metrics/interceptors/AbstractMetricsInterceptor.java
+++ 
b/rt/features/metrics/src/main/java/org/apache/cxf/metrics/interceptors/AbstractMetricsInterceptor.java
@@ -184,7 +184,20 @@ public abstract class AbstractMetricsInterceptor extends 
AbstractPhaseIntercepto
         return o;
     }
     private Object createMetricsContextForOperation(Message message, 
BindingOperationInfo boi) {
-        Object o = boi.getProperty(MetricsContext.class.getName());
+        Object o = null;
+        if (isRequestor(message)) {
+            o = boi.getProperty(MetricsContext.class.getName());
+        } else {
+            //on the client side the MetricsContext may already be created
+            //at endpoint level; avoid recreating another one
+            o = 
message.getExchange().getEndpoint().get(MetricsContext.class.getName());
+            if (o == null) {
+                o = boi.getProperty(MetricsContext.class.getName());
+            } else {
+                boi.setProperty(MetricsContext.class.getName(), o);
+            }
+        }
+       
         if (o == null) {
             List<MetricsContext> contexts = new ArrayList<>();
             for (MetricsProvider p : 
getMetricProviders(message.getExchange().getBus())) {
diff --git 
a/systests/jaxws/src/test/java/org/apache/cxf/systest/jaxws/MicrometerMetricsHttpProvider.java
 
b/systests/jaxws/src/test/java/org/apache/cxf/systest/jaxws/MicrometerMetricsHttpProvider.java
new file mode 100644
index 0000000000..b9ac531ae5
--- /dev/null
+++ 
b/systests/jaxws/src/test/java/org/apache/cxf/systest/jaxws/MicrometerMetricsHttpProvider.java
@@ -0,0 +1,120 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.cxf.systest.jaxws;
+
+import java.io.StringReader;
+
+import javax.xml.transform.Source;
+import javax.xml.transform.stream.StreamSource;
+
+
+import jakarta.annotation.Resource;
+import jakarta.xml.ws.BindingType;
+import jakarta.xml.ws.Provider;
+import jakarta.xml.ws.Service;
+import jakarta.xml.ws.ServiceMode;
+import jakarta.xml.ws.WebServiceContext;
+import jakarta.xml.ws.WebServiceProvider;
+import org.apache.cxf.message.Message;
+
+import io.micrometer.core.instrument.Counter;
+import io.micrometer.core.instrument.DistributionSummary;
+import io.micrometer.core.instrument.FunctionCounter;
+import io.micrometer.core.instrument.FunctionTimer;
+import io.micrometer.core.instrument.Gauge;
+import io.micrometer.core.instrument.LongTaskTimer;
+import io.micrometer.core.instrument.Meter;
+import io.micrometer.core.instrument.TimeGauge;
+import io.micrometer.core.instrument.Timer;
+
+@WebServiceProvider(serviceName = "MetricsService", portName = "MetricsPort", 
targetNamespace = "urn:metrics")
+@ServiceMode(Service.Mode.MESSAGE)
+@BindingType(jakarta.xml.ws.http.HTTPBinding.HTTP_BINDING)
+public class MicrometerMetricsHttpProvider implements Provider<Source> {
+
+    @Resource
+    private WebServiceContext wsContext;
+
+    
+    @Override
+    public Source invoke(Source request) {
+        try {
+            var ctx = wsContext.getMessageContext();
+
+            ctx.put(Message.CONTENT_TYPE, "application/xml; charset=UTF-8");
+            ctx.put(Message.RESPONSE_CODE, 200);
+
+            StringBuilder sb = new StringBuilder(8 * 1024);
+            sb.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
+            sb.append("<metrics>\n");
+
+            for (Meter meter : 
SchemaValidationWithoutViolationMetricsClientServerTest.METER_REGISTER.getMeters())
 {
+                final Meter.Id id = meter.getId();
+                final String name = id.getName();
+
+                final long[] countHolder = new long[] {
+                0L
+                };
+
+                meter.match((Gauge g) -> null, (Counter counter) -> {
+                    countHolder[0] = (long)counter.count();
+                    return null;
+                }, (Timer timer) -> {
+                    countHolder[0] = timer.count();
+                    return null;
+                }, (DistributionSummary summary) -> {
+                    countHolder[0] = summary.count();
+                    return null;
+                }, (LongTaskTimer longTaskTimer) -> {
+                    countHolder[0] = longTaskTimer.activeTasks();
+                    return null;
+                }, (TimeGauge timeGauge) -> null, (FunctionCounter 
functionCounter) -> {
+                    countHolder[0] = (long)functionCounter.count();
+                    return null;
+                }, (FunctionTimer functionTimer) -> {
+                    countHolder[0] = (long)functionTimer.count();
+                    return null;
+                }, (Meter other) -> null);
+
+                sb.append("  <meter 
name=\"").append(xmlEscape(name)).append("\" count=\"")
+                    .append(countHolder[0]).append("\"/>\n");
+            }
+
+            sb.append("</metrics>\n");
+
+            return new StreamSource(new StringReader(sb.toString()));
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private static String xmlEscape(String s) {
+        if (s == null) {
+            return "";
+        }
+        String r = s;
+        r = r.replace("&", "&amp;");
+        r = r.replace("<", "&lt;");
+        r = r.replace(">", "&gt;");
+        r = r.replace("\"", "&quot;");
+        r = r.replace("'", "&apos;");
+        return r;
+    }
+
+}
diff --git 
a/systests/jaxws/src/test/java/org/apache/cxf/systest/jaxws/SchemaValidationWithoutViolationMetricsClientServerTest.java
 
b/systests/jaxws/src/test/java/org/apache/cxf/systest/jaxws/SchemaValidationWithoutViolationMetricsClientServerTest.java
new file mode 100644
index 0000000000..9827969b2b
--- /dev/null
+++ 
b/systests/jaxws/src/test/java/org/apache/cxf/systest/jaxws/SchemaValidationWithoutViolationMetricsClientServerTest.java
@@ -0,0 +1,187 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.cxf.systest.jaxws;
+
+
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.xml.namespace.QName;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
+
+import jakarta.xml.ws.Endpoint;
+import org.apache.cxf.ext.logging.LoggingInInterceptor;
+import org.apache.cxf.ext.logging.LoggingOutInterceptor;
+import org.apache.cxf.jaxws.EndpointImpl;
+import org.apache.cxf.jaxws.schemavalidation.CkRequestType;
+import org.apache.cxf.jaxws.schemavalidation.RequestHeader;
+import org.apache.cxf.jaxws.schemavalidation.RequestIdType;
+import org.apache.cxf.jaxws.schemavalidation.Service;
+import org.apache.cxf.jaxws.schemavalidation.ServicePortType;
+import org.apache.cxf.message.Message;
+import org.apache.cxf.metrics.MetricsFeature;
+import org.apache.cxf.metrics.micrometer.MicrometerMetricsProperties;
+import org.apache.cxf.metrics.micrometer.MicrometerMetricsProvider;
+import 
org.apache.cxf.metrics.micrometer.provider.DefaultExceptionClassProvider;
+import 
org.apache.cxf.metrics.micrometer.provider.DefaultTimedAnnotationProvider;
+import org.apache.cxf.metrics.micrometer.provider.StandardTags;
+import org.apache.cxf.metrics.micrometer.provider.StandardTagsProvider;
+import org.apache.cxf.metrics.micrometer.provider.jaxws.JaxwsFaultCodeProvider;
+import 
org.apache.cxf.metrics.micrometer.provider.jaxws.JaxwsFaultCodeTagsCustomizer;
+import 
org.apache.cxf.metrics.micrometer.provider.jaxws.JaxwsOperationTagsCustomizer;
+import org.apache.cxf.metrics.micrometer.provider.jaxws.JaxwsTags;
+import org.apache.cxf.testutil.common.AbstractBusClientServerTestBase;
+import org.apache.cxf.testutil.common.AbstractBusTestServerBase;
+
+
+import io.micrometer.core.instrument.MeterRegistry;
+import io.micrometer.core.instrument.simple.SimpleMeterRegistry;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+public class SchemaValidationWithoutViolationMetricsClientServerTest extends 
AbstractBusClientServerTestBase {
+    
+    
+    public static final MeterRegistry METER_REGISTER = new 
SimpleMeterRegistry();
+    private static final String PORT = allocatePort(Server.class);
+    
+    private final QName portName = new 
QName("http://cxf.apache.org/jaxws/schemavalidation";, "servicePort");
+
+    public static class Server extends AbstractBusTestServerBase {
+
+        protected void run()  {
+            var jaxwsTags = new JaxwsTags();
+            var operationsCustomizer = new 
JaxwsOperationTagsCustomizer(jaxwsTags);
+            var faultsCustomizer = new JaxwsFaultCodeTagsCustomizer(jaxwsTags, 
new JaxwsFaultCodeProvider());
+            var standardTags = new StandardTags();
+            var tagsProvider = new StandardTagsProvider(new 
DefaultExceptionClassProvider(), standardTags);
+            var properties = new MicrometerMetricsProperties();
+
+            var provider = new MicrometerMetricsProvider(
+                    METER_REGISTER,
+                    tagsProvider,
+                    List.of(operationsCustomizer, faultsCustomizer),
+                    new DefaultTimedAnnotationProvider(),
+                    properties
+            );
+
+            String address;
+            Object implementor = new ServicePortTypeImpl();
+            address = "http://localhost:"; + PORT + "/schemavalidation";
+            Endpoint ep = Endpoint.create(implementor);
+            Map<String, Object> map = new HashMap<>();
+            map.put(Message.SCHEMA_VALIDATION_ENABLED, Boolean.TRUE);
+            ep.setProperties(map);
+            
((EndpointImpl)ep).setWsdlLocation("wsdl_systest_jaxws/schemaValidation.wsdl");
+            ((EndpointImpl)ep).setServiceName(new QName(
+                    "http://cxf.apache.org/jaxws/schemavalidation";, 
"service"));
+            ((EndpointImpl)ep).getInInterceptors().add(new 
LoggingInInterceptor());
+            ((EndpointImpl)ep).getOutInterceptors().add(new 
LoggingOutInterceptor());
+            ((EndpointImpl)ep).setFeatures(Arrays.asList(new 
MetricsFeature(provider)));
+            ep.publish(address);
+            Endpoint.publish("http://localhost:"; + PORT + "/metrics", new 
MicrometerMetricsHttpProvider());
+
+        }
+    }
+
+    @BeforeClass
+    public static void startServers() {
+        createStaticBus();
+        assertTrue("server did not launch correctly", 
launchServer(Server.class, true));
+    }
+
+    @Test
+    public void testSchemavalildationWithMetrics() throws Exception {
+        testSchemaValidationWithoutViolation();
+        testCxfServerRequestsCount();
+    }
+    
+    
+    
+    
+    private void testSchemaValidationWithoutViolation() throws Exception {
+        Service service = new Service();
+        assertNotNull(service);
+
+        try (ServicePortType greeter = service.getPort(portName, 
ServicePortType.class)) {
+            greeter.getInInterceptors().add(new LoggingInInterceptor());
+            greeter.getOutInterceptors().add(new LoggingOutInterceptor());
+            updateAddressPort(greeter, PORT);
+
+            RequestIdType requestId = new RequestIdType();
+            requestId.setId("550e8400-e29b-41d4-a716-446655440000");
+            CkRequestType request = new CkRequestType();
+            request.setRequest(requestId);
+            RequestHeader header = new RequestHeader();
+            header.setHeaderValue("AABBCC");
+
+            try {
+                greeter.ckR(request, header);
+            } finally {
+                assertEquals(1, METER_REGISTER.getMeters().size());
+            }
+        }
+    }
+    
+    
+    private void testCxfServerRequestsCount() throws Exception {
+        String endpoint = "http://localhost:"; + PORT + "/metrics";
+        HttpURLConnection conn = (HttpURLConnection) new 
URL(endpoint).openConnection();
+        conn.setRequestMethod("GET");
+        conn.setRequestProperty("Accept", "application/xml");
+
+        assertEquals("HTTP response code", 200, conn.getResponseCode());
+
+        try (InputStream in = conn.getInputStream()) {
+            DocumentBuilderFactory factory = 
DocumentBuilderFactory.newInstance();
+            factory.setNamespaceAware(false);
+            DocumentBuilder builder = factory.newDocumentBuilder();
+            Document doc = builder.parse(in);
+
+            NodeList meters = doc.getElementsByTagName("meter");
+            boolean found = false;
+            for (int i = 0; i < meters.getLength(); i++) {
+                Element el = (Element) meters.item(i);
+                String name = el.getAttribute("name");
+                if ("cxf.server.requests".equals(name)) {
+                    String count = el.getAttribute("count");
+                    assertEquals("cxf.server.requests count", "1", count);
+                    found = true;
+                    break;
+                }
+            }
+            assertTrue(found);
+        }
+    }
+}
\ No newline at end of file

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