How to use MBean class of org.openqa.selenium.grid.jmx package

Best Selenium code snippet using org.openqa.selenium.grid.jmx.MBean

Source:JmxTest.java

...37import org.openqa.selenium.remote.tracing.Tracer;38import javax.management.AttributeNotFoundException;39import javax.management.InstanceNotFoundException;40import javax.management.IntrospectionException;41import javax.management.MBeanAttributeInfo;42import javax.management.MBeanException;43import javax.management.MBeanInfo;44import javax.management.MBeanServer;45import javax.management.MalformedObjectNameException;46import javax.management.ObjectName;47import javax.management.ReflectionException;48import java.lang.management.ManagementFactory;49import java.net.URI;50import java.net.URISyntaxException;51import java.time.Duration;52import java.time.Instant;53import static org.assertj.core.api.Assertions.assertThat;54import static org.junit.Assert.fail;55public class JmxTest {56  private final Capabilities CAPS = new ImmutableCapabilities("browserName", "cheese");57  private final MBeanServer beanServer = ManagementFactory.getPlatformMBeanServer();58  @Test59  public void shouldBeAbleToRegisterBaseServerConfig() {60    try {61      ObjectName name = new ObjectName("org.seleniumhq.grid:type=Config,name=BaseServerConfig");62      new JMXHelper().unregister(name);63      BaseServerOptions baseServerOptions = new BaseServerOptions(64        new MapConfig(65          ImmutableMap.of("server", ImmutableMap.of("port", PortProber.findFreePort()))));66      MBeanInfo info = beanServer.getMBeanInfo(name);67      assertThat(info).isNotNull();68      MBeanAttributeInfo[] attributeInfoArray = info.getAttributes();69      assertThat(attributeInfoArray).hasSize(3);70      String uriValue = (String) beanServer.getAttribute(name, "Uri");71      assertThat(uriValue).isEqualTo(baseServerOptions.getExternalUri().toString());72    } catch (InstanceNotFoundException | IntrospectionException | ReflectionException73      | MalformedObjectNameException e) {74      fail("Could not find the registered MBean");75    } catch (MBeanException e) {76      fail("MBeanServer exception");77    } catch (AttributeNotFoundException e) {78      fail("Could not find the registered MBean's attribute");79    }80  }81  @Test82  public void shouldBeAbleToRegisterNode() throws URISyntaxException {83    try {84      URI nodeUri = new URI("http://example.com:1234");85      ObjectName name = new ObjectName("org.seleniumhq.grid:type=Node,name=LocalNode");86      new JMXHelper().unregister(name);87      Tracer tracer = DefaultTestTracer.createTracer();88      EventBus bus = new GuavaEventBus();89      Secret secret = new Secret("cheese");90      LocalNode localNode = LocalNode.builder(tracer, bus, nodeUri, nodeUri, secret)91        .add(CAPS, new TestSessionFactory((id, caps) -> new Session(92          id,93          nodeUri,94          new ImmutableCapabilities(),95          caps,96          Instant.now()))).build();97      assertThat(localNode).isNotNull();98      MBeanInfo info = beanServer.getMBeanInfo(name);99      assertThat(info).isNotNull();100      MBeanAttributeInfo[] attributeInfo = info.getAttributes();101      assertThat(attributeInfo).hasSize(9);102      String currentSessions = (String) beanServer.getAttribute(name, "CurrentSessions");103      assertThat(Integer.parseInt(currentSessions)).isZero();104      String maxSessions = (String) beanServer.getAttribute(name, "MaxSessions");105      assertThat(Integer.parseInt(maxSessions)).isEqualTo(1);106      String status = (String) beanServer.getAttribute(name, "Status");107      assertThat(status).isEqualTo("UP");108      String totalSlots = (String) beanServer.getAttribute(name, "TotalSlots");109      assertThat(Integer.parseInt(totalSlots)).isEqualTo(1);110      String usedSlots = (String) beanServer.getAttribute(name, "UsedSlots");111      assertThat(Integer.parseInt(usedSlots)).isZero();112      String load = (String) beanServer.getAttribute(name, "Load");113      assertThat(Float.parseFloat(load)).isEqualTo(0.0f);114      String remoteNodeUri = (String) beanServer.getAttribute(name, "RemoteNodeUri");115      assertThat(remoteNodeUri).isEqualTo(nodeUri.toString());116      String gridUri = (String) beanServer.getAttribute(name, "GridUri");117      assertThat(gridUri).isEqualTo(nodeUri.toString());118    } catch (InstanceNotFoundException | IntrospectionException | ReflectionException119      | MalformedObjectNameException e) {120      fail("Could not find the registered MBean");121    } catch (MBeanException e) {122      fail("MBeanServer exception");123    } catch (AttributeNotFoundException e) {124      fail("Could not find the registered MBean's attribute");125    }126  }127  @Test128  public void shouldBeAbleToRegisterSessionQueuerServerConfig() {129    try {130      ObjectName name = new ObjectName(131        "org.seleniumhq.grid:type=Config,name=NewSessionQueueConfig");132      new JMXHelper().unregister(name);133      SessionRequestOptions queueOptions =134        new SessionRequestOptions(new MapConfig(ImmutableMap.of()));135      MBeanInfo info = beanServer.getMBeanInfo(name);136      assertThat(info).isNotNull();137      MBeanAttributeInfo[] attributeInfoArray = info.getAttributes();138      assertThat(attributeInfoArray).hasSize(2);139      String requestTimeout = (String) beanServer.getAttribute(name, "RequestTimeoutSeconds");140      assertThat(Long.parseLong(requestTimeout)).isEqualTo(queueOptions.getRequestTimeoutSeconds());141      String retryInterval = (String) beanServer.getAttribute(name, "RetryIntervalSeconds");142      assertThat(Long.parseLong(retryInterval)).isEqualTo(queueOptions.getRetryIntervalSeconds());143    } catch (InstanceNotFoundException | IntrospectionException | ReflectionException144      | MalformedObjectNameException e) {145      fail("Could not find the registered MBean");146    } catch (MBeanException e) {147      fail("MBeanServer exception");148    } catch (AttributeNotFoundException e) {149      fail("Could not find the registered MBean's attribute");150    }151  }152  @Test153  public void shouldBeAbleToRegisterSessionQueue() {154    try {155      ObjectName name = new ObjectName("org.seleniumhq.grid:type=SessionQueue,name=LocalSessionQueue");156      new JMXHelper().unregister(name);157      Tracer tracer = DefaultTestTracer.createTracer();158      EventBus bus = new GuavaEventBus();159      NewSessionQueue sessionQueue = new LocalNewSessionQueue(160        tracer,161        bus,162        new DefaultSlotMatcher(),163        Duration.ofSeconds(2),164        Duration.ofSeconds(2),165        new Secret(""));166      assertThat(sessionQueue).isNotNull();167      MBeanInfo info = beanServer.getMBeanInfo(name);168      assertThat(info).isNotNull();169      MBeanAttributeInfo[] attributeInfoArray = info.getAttributes();170      assertThat(attributeInfoArray).hasSize(1);171      String size = (String) beanServer.getAttribute(name, "NewSessionQueueSize");172      assertThat(Integer.parseInt(size)).isZero();173    } catch (InstanceNotFoundException | IntrospectionException | ReflectionException174      | MalformedObjectNameException e) {175      fail("Could not find the registered MBean");176    } catch (MBeanException e) {177      fail("MBeanServer exception");178    } catch (AttributeNotFoundException e) {179      fail("Could not find the registered MBean's attribute");180    }181  }182}...

Source:MBean.java

...23import java.util.stream.Collectors;24import java.util.stream.Stream;25import javax.management.Attribute;26import javax.management.AttributeList;27import javax.management.DynamicMBean;28import javax.management.IntrospectionException;29import javax.management.MBeanAttributeInfo;30import javax.management.MBeanInfo;31import javax.management.MBeanOperationInfo;32import javax.management.MalformedObjectNameException;33import javax.management.ObjectName;34public class MBean implements DynamicMBean {35  private final Object bean;36  private final MBeanInfo beanInfo;37  private final Map<String, AttributeInfo> attributeMap = new HashMap<>();38  private final Map<String, OperationInfo> operationMap = new HashMap<>();39  private final ObjectName objectName;40  private static class AttributeInfo {41    final String name;42    final String description;43    final Method getter;44    final Method setter;45    AttributeInfo(String name, String description, Method getter, Method setter) {46      this.name = name;47      this.description = description;48      this.getter = getter;49      this.setter = setter;50    }51    MBeanAttributeInfo getMBeanAttributeInfo() {52      try {53        return new MBeanAttributeInfo(name, description, getter, setter);54      } catch (IntrospectionException e) {55        e.printStackTrace();56        return null;57      }58    }59  }60  private static class OperationInfo {61    final String name;62    final String description;63    final Method method;64    OperationInfo(String name, String description, Method method) {65      this.name = name;66      this.description = description;67      this.method = method;68    }69    MBeanOperationInfo getMBeanOperationInfo() {70      return new MBeanOperationInfo(description, method);71    }72  }73  MBean(Object bean) {74    this.bean = bean;75    ManagedService mBean = bean.getClass().getAnnotation(ManagedService.class);76    if (mBean == null) {77      throw new IllegalArgumentException(78          String.format("%s has no @ManagedService annotation", bean.getClass().getName()));79    }80    String name = bean.getClass().getName();81    String description = mBean.description();82    collectAttributeInfo(bean);83    MBeanAttributeInfo[] attributes = attributeMap.values().stream()84        .map(AttributeInfo::getMBeanAttributeInfo)85        .toArray(MBeanAttributeInfo[]::new);86    collectOperationInfo(bean);87    MBeanOperationInfo[] operations = operationMap.values().stream()88        .map(OperationInfo::getMBeanOperationInfo)89        .toArray(MBeanOperationInfo[]::new);90    beanInfo = new MBeanInfo(name, description, attributes, null, operations, null);91    objectName = generateObjectName(bean);92  }93  private void collectAttributeInfo(Object bean) {94    Stream.of(bean.getClass().getMethods())95        .map(this::getAttributeInfo)96        .filter(Objects::nonNull)97        .forEach(ai -> attributeMap.put(ai.name, ai));98  }99  private AttributeInfo getAttributeInfo(Method m) {100    ManagedAttribute ma = m.getAnnotation(ManagedAttribute.class);101    if (ma == null) {102      return null;103    }104    try {105      String name = "".equals(ma.name()) ? m.getName() : ma.name();106      return new AttributeInfo(name, ma.description(), findGetter(m), findSetter(m));107    } catch (Throwable t) {108      t.printStackTrace();109      return null;110    }111  }112  private Method findGetter(Method annotatedMethod) {113    ManagedAttribute ma = annotatedMethod.getAnnotation(ManagedAttribute.class);114    try {115      if (! "".equals(ma.getter())) {116          return annotatedMethod.getDeclaringClass().getMethod(ma.getter());117      } else {118        String name = annotatedMethod.getName();119        if (name.startsWith("get") || name.startsWith("is")) {120          return annotatedMethod;121        }122        if (name.startsWith("set")) {123          return annotatedMethod.getDeclaringClass().getMethod("g"+name.substring(1));124        }125      }126      return null;127    } catch (NoSuchMethodException e) {128      e.printStackTrace();129      return null;130    }131  }132  private Method findSetter(Method annotatedMethod) {133    ManagedAttribute ma = annotatedMethod.getAnnotation(ManagedAttribute.class);134    if (! "".equals(ma.setter())) {135      return findMethod(annotatedMethod.getDeclaringClass(), ma.setter());136    } else {137      String name = annotatedMethod.getName();138      if (name.startsWith("set")) {139        return annotatedMethod;140      }141      if (name.startsWith("get")) {142        findMethod(annotatedMethod.getDeclaringClass(), "s"+name.substring(1));143      }144      if (name.startsWith("is")) {145        findMethod(annotatedMethod.getDeclaringClass(), "set"+name.substring(2));146      }147    }148    return null;149  }150  private Method findMethod(Class<?> cls, String name) {151    return Stream.of(cls.getMethods())152        .filter(m ->  m.getName().equals(name))153        .findFirst().orElse(null);154  }155  private void collectOperationInfo(Object bean) {156    Stream.of(bean.getClass().getMethods())157        .map(this::getOperationInfo)158        .filter(Objects::nonNull)159        .forEach(oi -> operationMap.put(oi.name, oi));160  }161  private OperationInfo getOperationInfo(Method m) {162    ManagedOperation mo = m.getAnnotation(ManagedOperation.class);163    if (mo == null) {164      return null;165    }166    return new OperationInfo(m.getName(), mo.description(), m);167  }168  private ObjectName generateObjectName(Object bean) {169    ManagedService mBean = bean.getClass().getAnnotation(ManagedService.class);170    try {171      String name = mBean.objectName();172      if ("".equals(name)) {173        try {174          return (ObjectName) bean.getClass().getMethod("getObjectName").invoke(bean);175        } catch (IllegalAccessException|InvocationTargetException|NoSuchMethodException e) {176          return new ObjectName(String.format("%s:type=%s",177                                              bean.getClass().getPackage().getName(),178                                              bean.getClass().getSimpleName()));179        }180      } else {181        return new ObjectName(mBean.objectName());182      }183    } catch (MalformedObjectNameException e) {184      throw new IllegalArgumentException("Cannot generate ObjectName for a bean", e);185    }186  }187  @Override188  public Object getAttribute(String attribute) {189    try {190      Object res = attributeMap.get(attribute).getter.invoke(bean);191      if (res instanceof Map<?,?>) {192        return ((Map<?,?>) res).entrySet().stream().collect(Collectors.toMap(193            Map.Entry::getKey, e -> e.getValue().toString()));194      } else {195        return res.toString();196      }197    } catch (IllegalAccessException|InvocationTargetException e) {198      e.printStackTrace();199      return null;200    }201  }202  @Override203  public void setAttribute(Attribute attribute) {204    try {205      attributeMap.get(attribute.getName()).setter.invoke(bean, attribute.getValue());206    } catch (IllegalAccessException|InvocationTargetException e) {207      e.printStackTrace();208    }209  }210  @Override211  public AttributeList getAttributes(String[] attributes) {212    return null;213  }214  @Override215  public AttributeList setAttributes(AttributeList attributes) {216    return null;217  }218  @Override219  public Object invoke(String actionName, Object[] params, String[] signature) {220    try {221      return operationMap.get(actionName).method.invoke(bean, params);222    } catch (IllegalAccessException|InvocationTargetException e) {223      e.printStackTrace();224      return null;225    }226  }227  @Override228  public MBeanInfo getMBeanInfo() {229    return beanInfo;230  }231  public ObjectName getObjectName() {232    return objectName;233  }234}...

Source:JMXHelper.java

...16// under the License.17package org.openqa.selenium.grid.jmx;18import java.lang.management.ManagementFactory;19import javax.management.InstanceAlreadyExistsException;20import javax.management.MBeanServer;21import javax.management.ObjectName;22public class JMXHelper {23  public MBean register(Object bean) {24    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();25    MBean mBean = new MBean(bean);26    try {27      mbs.registerMBean(mBean, mBean.getObjectName());28      return mBean;29    } catch (InstanceAlreadyExistsException t) {30      return mBean;31    } catch (Throwable t) {32      t.printStackTrace();33      return null;34    }35  }36  public void unregister(ObjectName objectName) {37    if (objectName != null) {38      MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();39      try {40        mbs.unregisterMBean(objectName);41      } catch (Throwable ignore) {42      }43    }44  }45}...

MBean

Using AI Code Generation

1import org.openqa.selenium.grid.jmx.JmxHelper;2import org.openqa.selenium.grid.jmx.JmxMBean;3import org.openqa.selenium.grid.jmx.JmxMBeanFactory;4import org.openqa.selenium.grid.jmx.JmxMBeanInfo;5import javax.management.MBeanServer;6import javax.management.ObjectName;7import java.lang.management.ManagementFactory;8import java.util.HashMap;9import java.util.Map;10public class JmxMBeanExample {11    public static void main(String[] args) throws Exception {12        MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();13        JmxMBeanInfo jmxMBeanInfo = new JmxMBeanInfo("org.seleniumhq.grid",14                "Selenium Grid MBean");15        Map<String, Object> attributes = new HashMap<>();16        attributes.put("Value", 1);17        JmxMBean jmxMBean = new JmxMBean(jmxMBeanInfo, attributes);18        JmxMBeanFactory jmxMBeanFactory = new JmxMBeanFactory(jmxMBean);19        JmxHelper.registerMBean(mBeanServer, jmxMBeanFactory, ObjectName.getInstance("org.seleniumhq.grid:type=grid"));20        System.out.println("JMX MBean registered");21        System.out.println("Press enter to unregister");22        System.in.read();23        JmxHelper.unregisterMBean(mBeanServer, ObjectName.getInstance("org.seleniumhq.grid:type=grid"));24        System.out.println("JMX MBean unregistered");25    }26}27import org.openqa.selenium.grid.jmx.JmxHelper;28import org.openqa.selenium.grid.jmx.JmxMBean;29import org.openqa.selenium.grid.jmx.JmxMBeanFactory;30import org.openqa.selenium.grid.jmx.JmxMBeanInfo;31import org.openqa.selenium.remote.SessionId;32import javax.management.MBeanServer;33import javax.management.ObjectName;34import java.lang.management.ManagementFactory;35import java.util.HashMap;36import java.util.Map;37public class JmxMBeanExample {38    public static void main(String[] args) throws Exception {

MBean

Using AI Code Generation

1import org.openqa.selenium.grid.jmx.*;2import java.io.IOException;3import java.util.ArrayList;4import java.util.List;5import java.util.Set;6import java.util.TreeSet;7import java.util.stream.Collectors;8import javax.management.MBeanServerConnection;9import javax.management.MalformedObjectNameException;10import javax.management.ObjectName;11import com.google.common.collect.ImmutableMap;12public class SeleniumNodeMetrics {13    public static void main(String[] args) throws MalformedObjectNameException, IOException {14        String nodeHost = "localhost";15        int nodePort = 5556;16        String nodeJmxPort = "5557";17        MBeanServerConnection mBeanServerConnection = JmxClient.connect(nodeJmxUrl);18        ObjectName objectName = new ObjectName("org.seleniumhq.grid:type=GridNode,nodeId=" + nodeUrl);19        Set<String> attributes = new TreeSet<>(mBeanServerConnection.getMBeanInfo(objectName).getAttributes().stream().map(a -> a.getName()).collect(Collectors.toList()));20        List<ImmutableMap<String, Object>> metrics = new ArrayList<>();21        for (String attribute : attributes) {22            ImmutableMap<String, Object> metric = ImmutableMap.of("name", attribute, "value", mBeanServerConnection.getAttribute(objectName, attribute));23            metrics.add(metric);24        }25        System.out.println(metrics);26    }27}

MBean

Using AI Code Generation

1import org.openqa.selenium.grid.jmx.MBean;2MBean mbean = new MBean();3mbean.getAttributes("org.openqa.selenium.grid:type=router,name=router");4mbean.getAttribute("org.openqa.selenium.grid:type=router,name=router", "Id");5mbean.getMBeanInfo("org.openqa.selenium.grid:type=router,name=router");6mbean.getMBeanCount();7mbean.getMBeanNames();8mbean.getMBeanClassName("org.openqa.selenium.grid:type=router,name=router");9mbean.getMBeanDomain("org.openqa.selenium.grid:type=router,name=router");10mbean.getMBeanDomainType("org.openqa.selenium.grid:type=router,name=router");11mbean.getMBeanDomainName("org.openqa.selenium.grid:type=router,name=router");12mbean.getMBeanDomainNamePattern("org.openqa.selenium.grid:type=router,name=router");13mbean.getMBeanDomainTypePattern("org.openqa.selenium.grid:type=router,name=router");14mbean.getMBeanDomainNamePattern("org.openqa.selenium.grid:type=router,name=router");15mbean.getMBeanDomainTypePattern("org.openqa.selenium.grid:type=router,name=router");16mbean.getMBeanDomainName("org.openqa.selenium.grid:type=router,name=router");17mbean.getMBeanDomainNamePattern("org.openqa.selenium.grid:type=router,name=router");18mbean.getMBeanDomainTypePattern("org.openqa.selenium.grid:type=router,name=router");19mbean.getMBeanDomainName("org.openqa.selenium.grid:type=router,name=router");20mbean.getMBeanDomainNamePattern("org.openqa.selenium.grid:type=router,name=router");21mbean.getMBeanDomainTypePattern("org.openqa.selenium.grid:type=router,name

MBean

Using AI Code Generation

1import org.openqa.selenium.grid.jmx.*;2import javax.management.*;3import java.lang.management.*;4import java.util.*;5import java.util.function.*;6import java.util.logging.*;7import java.util.stream.*;8import java.util.concurrent.*;9import java.util.concurrent.atomic.*;10import java.util.concurrent.locks.*;11import java.util.concurrent.locks.ReentrantLock;12import java.util.concurrent.locks.ReentrantReadWriteLock;13import java.util.concurrent.atomic.AtomicInteger;14import java.util.concurrent.atomic.AtomicLong;15import java.util.concurrent.atomic.AtomicReference;16import java.util.concurrent.atomic.AtomicBoolean;17import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;18import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;19import java.util.concurrent.atomic.AtomicLongFieldUpdater;20import java.util.concurrent.atomic.AtomicMarkableReference;21import java.util.concurrent.atomic.AtomicStampedReference;22import java.util.concurrent.atomic.DoubleAccumulator;23import java.util.concurrent.atomic.DoubleAdder;24import java.util.concurrent.atomic.LongAccumulator;25import java.util.concurrent.atomic.LongAdder;26import java.util.concurrent.locks.Lock;27import java.util.concurrent.locks.ReadWriteLock;28import java.util.concurrent.locks.ReentrantLock;29import java.util.concurrent.locks.ReentrantReadWriteLock;30import java.util.concurrent.locks.LockSupport;31import java.util.concurrent.locks.StampedLock;32import java.util.concurrent.locks.Condition;33import java.util.concurrent.locks.AbstractQueuedSynchronizer;34import java.util.concurrent.locks.AbstractOwnableSynchronizer;35import java.util.concurrent.locks.AbstractQueuedLongSynchronizer;36import java.util.concurrent.locks.AbstractOwnableSynchronizer;37import java.util.concurrent.locks.AbstractQueuedSynchronizer.ConditionObject;38import java.util.concurrent.locks.AbstractQueuedLongSynchronizer.ConditionObject;39import java.util.concurrent.locks.AbstractQueuedSynchronizer.Node;40import java.util.concurrent.locks.AbstractQueuedLongSynchronizer.Node;41import java.util.concurrent.locks.AbstractQueuedSynchronizer.FairSync;42import java.util.concurrent.locks.AbstractQueuedLongSynchronizer.FairSync;43import java.util.concurrent.locks.AbstractQueuedSynchronizer.NonfairSync;44import java.util.concurrent.locks.AbstractQueuedLongSynchronizer.NonfairSync;45import java.util.concurrent.locks.AbstractQueuedSynchronizer.Sync;46import java.util.concurrent.locks.AbstractQueuedLongSynchronizer.Sync;47import java.util.concurrent.locks.AbstractQueuedSynchronizer.Head;

Source: New features in java 7

1public<T,E> KeyValue(T k,E v){}2

Source: Why does my Spring Boot App always shutdown immediately after starting?

1while ( s.next() )2{3 keyValueOutput.put(s.getString("key"),s.getString("value"));4}5

Source: Calling JMX MBean method from a shell script

1    public synchronized void syncKeys() {2        this.pipeline.sync();3        this.jedis.close();4        this.jedis = null;5        this.pipelineCount = 0;6    }7

Source:Calling JMX MBean method from a shell script

    public synchronized void syncKeys() {
        this.pipeline.sync();
        this.jedis.close();
        this.jedis = null;
        this.pipelineCount = 0;
    }

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