Examples with ManagedAttribute org.eclipse.jetty.util.annotation.ManagedAttribute used on opensource projects

Example 1 with ManagedAttribute

use of org.eclipse.jetty.util.annotation.ManagedAttribute in project jetty.project by eclipse.

the class ContextHandler method getClassPath.

/* ------------------------------------------------------------ */
/**
     * Make best effort to extract a file classpath from the context classloader
     *
     * @return Returns the classLoader.
     */
@ManagedAttribute("The file classpath")
public String getClassPath() {
    if (_classLoader == null || !(_classLoader instanceof URLClassLoader))
        return null;
    URLClassLoader loader = (URLClassLoader) _classLoader;
    URL[] urls = loader.getURLs();
    StringBuilder classpath = new StringBuilder();
    for (int i = 0; i < urls.length; i++) {
        try {
            Resource resource = newResource(urls[i]);
            File file = resource.getFile();
            if (file != null && file.exists()) {
                if (classpath.length() > 0)
                    classpath.append(File.pathSeparatorChar);
                classpath.append(file.getAbsolutePath());
            }
        } catch (IOException e) {
            LOG.debug(e);
        }
    }
    if (classpath.length() == 0)
        return null;
    return classpath.toString();
}

Example 2 with ManagedAttribute

use of org.eclipse.jetty.util.annotation.ManagedAttribute in project jetty.project by eclipse.

the class ContextHandlerMBean method getContextAttributes.

@ManagedAttribute("Map of context attributes")
public Map<String, Object> getContextAttributes() {
    Map<String, Object> map = new HashMap<String, Object>();
    Attributes attrs = ((ContextHandler) _managed).getAttributes();
    Enumeration<String> en = attrs.getAttributeNames();
    while (en.hasMoreElements()) {
        String name = (String) en.nextElement();
        Object value = attrs.getAttribute(name);
        map.put(name, value);
    }
    return map;
}

Example 3 with ManagedAttribute

use of org.eclipse.jetty.util.annotation.ManagedAttribute in project jetty.project by eclipse.

the class ObjectMBean method getMBeanInfo.

public MBeanInfo getMBeanInfo() {
    try {
        if (_info == null) {
            // Start with blank lazy lists attributes etc.
            String desc = null;
            List<MBeanAttributeInfo> attributes = new ArrayList<MBeanAttributeInfo>();
            List<MBeanConstructorInfo> constructors = new ArrayList<MBeanConstructorInfo>();
            List<MBeanOperationInfo> operations = new ArrayList<MBeanOperationInfo>();
            List<MBeanNotificationInfo> notifications = new ArrayList<MBeanNotificationInfo>();
            // Find list of classes that can influence the mbean
            Class<?> o_class = _managed.getClass();
            List<Class<?>> influences = new ArrayList<Class<?>>();
            // always add MBean itself
            influences.add(this.getClass());
            influences = findInfluences(influences, _managed.getClass());
            if (LOG.isDebugEnabled())
                LOG.debug("Influence Count: {}", influences.size());
            // Process Type Annotations
            ManagedObject primary = o_class.getAnnotation(ManagedObject.class);
            if (primary != null) {
                desc = primary.value();
            } else {
                if (LOG.isDebugEnabled())
                    LOG.debug("No @ManagedObject declared on {}", _managed.getClass());
            }
            // For each influence
            for (int i = 0; i < influences.size(); i++) {
                Class<?> oClass = influences.get(i);
                ManagedObject typeAnnotation = oClass.getAnnotation(ManagedObject.class);
                if (LOG.isDebugEnabled())
                    LOG.debug("Influenced by: " + oClass.getCanonicalName());
                if (typeAnnotation == null) {
                    if (LOG.isDebugEnabled())
                        LOG.debug("Annotations not found for: {}", oClass.getCanonicalName());
                    continue;
                }
                for (Method method : oClass.getDeclaredMethods()) {
                    ManagedAttribute methodAttributeAnnotation = method.getAnnotation(ManagedAttribute.class);
                    if (methodAttributeAnnotation != null) {
                        // TODO sort out how a proper name could get here, its a method name as an attribute at this point.
                        if (LOG.isDebugEnabled())
                            LOG.debug("Attribute Annotation found for: {}", method.getName());
                        MBeanAttributeInfo mai = defineAttribute(method, methodAttributeAnnotation);
                        if (mai != null) {
                            attributes.add(mai);
                        }
                    }
                    ManagedOperation methodOperationAnnotation = method.getAnnotation(ManagedOperation.class);
                    if (methodOperationAnnotation != null) {
                        if (LOG.isDebugEnabled())
                            LOG.debug("Method Annotation found for: {}", method.getName());
                        MBeanOperationInfo oi = defineOperation(method, methodOperationAnnotation);
                        if (oi != null) {
                            operations.add(oi);
                        }
                    }
                }
            }
            _info = new MBeanInfo(o_class.getName(), desc, (MBeanAttributeInfo[]) attributes.toArray(new MBeanAttributeInfo[attributes.size()]), (MBeanConstructorInfo[]) constructors.toArray(new MBeanConstructorInfo[constructors.size()]), (MBeanOperationInfo[]) operations.toArray(new MBeanOperationInfo[operations.size()]), (MBeanNotificationInfo[]) notifications.toArray(new MBeanNotificationInfo[notifications.size()]));
        }
    } catch (RuntimeException e) {
        LOG.warn(e);
        throw e;
    }
    return _info;
}