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How to use Annotation Type ManagedAttribute class of org.openqa.selenium.grid.jmx package

Best Selenium code snippet using org.openqa.selenium.grid.jmx.Annotation Type ManagedAttribute

Source:MBean.java

1// Licensed to the Software Freedom Conservancy (SFC) under one2// or more contributor license agreements.  See the NOTICE file3// distributed with this work for additional information4// regarding copyright ownership.  The SFC licenses this file5// to you under the Apache License, Version 2.0 (the6// "License"); you may not use this file except in compliance7// with the License.  You may obtain a copy of the License at8//9//   http://www.apache.org/licenses/LICENSE-2.010//11// Unless required by applicable law or agreed to in writing,12// software distributed under the License is distributed on an13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY14// KIND, either express or implied.  See the License for the15// specific language governing permissions and limitations16// under the License.17package org.openqa.selenium.grid.jmx;18import java.lang.reflect.InvocationTargetException;19import java.lang.reflect.Method;20import java.util.HashMap;21import java.util.Map;22import java.util.Objects;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:ManagedAttribute.java

1// Licensed to the Software Freedom Conservancy (SFC) under one2// or more contributor license agreements.  See the NOTICE file3// distributed with this work for additional information4// regarding copyright ownership.  The SFC licenses this file5// to you under the Apache License, Version 2.0 (the6// "License"); you may not use this file except in compliance7// with the License.  You may obtain a copy of the License at8//9//   http://www.apache.org/licenses/LICENSE-2.010//11// Unless required by applicable law or agreed to in writing,12// software distributed under the License is distributed on an13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY14// KIND, either express or implied.  See the License for the15// specific language governing permissions and limitations16// under the License.17package org.openqa.selenium.grid.jmx;18import java.lang.annotation.ElementType;19import java.lang.annotation.Retention;20import java.lang.annotation.RetentionPolicy;21import java.lang.annotation.Target;22@Target(ElementType.METHOD)23@Retention(RetentionPolicy.RUNTIME)24public @interface ManagedAttribute {25  String name() default "";26  String description() default "";27  String getter() default "";28  String setter() default "";29  String units() default "";30}...

Annotation Type ManagedAttribute

Using AI Code Generation

1package org.openqa.selenium.grid.jmx;2import org.openqa.selenium.json.Json;3import org.openqa.selenium.json.JsonException;4import org.openqa.selenium.json.JsonOutput;5import org.openqa.selenium.json.TypeToken;6import java.io.IOException;7import java.io.Writer;8import java.util.HashMap;9import java.util.Map;10import java.util.Objects;11import java.util.function.Supplier;12import javax.management.AttributeChangeNotification;13import javax.management.MBeanNotificationInfo;14import javax.management.NotificationBroadcasterSupport;

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