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Groovy example source code file (JmxClientConnectorFactory.groovy)

This example Groovy source code file (JmxClientConnectorFactory.groovy) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

jmxbuilder, jmxbuilder, jmxbuilderexception, jmxbuilderexception, jmxserviceurl, jmxserviceurl, list, map, node, object, object, string, supported, supported_protocols

The Groovy JmxClientConnectorFactory.groovy source code

/*
 * Copyright 2008 the original author or authors.
 *
 * Licensed 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 groovy.jmx.builder

import javax.management.remote.JMXConnector
import javax.management.remote.JMXConnectorFactory
import javax.management.remote.JMXServiceURL

/**
 * This is the factory for node JmxBuilder.connectorClient.
 * A call to this node returns an insatnce of the JMXConnector interface.
 *
 * <pre>
 * JmxBuilder.clientConnector (
 *    protocol:"rmi",
 *    host:"...",
 *    port:1099,
 *    url:"...",
 * )
 * </pre>
 *
 * @author Vladimir Vivien
 * @see <a href="http://java.sun.com/j2se/1.5.0/docs/api/javax/management/remote/JMXConnector.html">JMXConnector
 */
class JmxClientConnectorFactory extends AbstractFactory {
    private static List SUPPORTED_PROTOCOLS = ["rmi", "jrmp", "iiop", "jmxmp"]

    public Object newInstance(FactoryBuilderSupport builder, Object nodeName, Object nodeArgs, Map nodeAttribs) {
        if (nodeArgs) {
            throw new JmxBuilderException("Node '${nodeName}' only supports named attributes.")
        }
        JmxBuilder fsb = (JmxBuilder) builder
        def protocol = nodeAttribs?.remove("protocol") ?: nodeAttribs?.remove("transport") ?: "rmi"
        def port = nodeAttribs?.remove("port")
        def host = nodeAttribs?.remove("host") ?: nodeAttribs?.remove("address") ?: "localhost"
        def url = nodeAttribs?.remove("url")
        def props = nodeAttribs?.remove("properties") ?: nodeAttribs?.remove("props") ?: nodeAttribs?.remove("env")

        if (!port && !url) {
            throw new JmxBuilderException("Node '${nodeName} requires attribute 'port' to specify server's port number.")
        }
        if (!SUPPORTED_PROTOCOLS.contains(protocol)) {
            throw new JmxBuilderException("Connector protocol '${protocol} is not supported at this time. " +
                    "Supported protocols are ${SUPPORTED_PROTOCOLS}.")
        }

        JMXServiceURL serviceUrl = (url) ? new JMXServiceURL(url) : generateServiceUrl(protocol, host, port)
        JMXConnector connector = JMXConnectorFactory.newJMXConnector(serviceUrl, props);

        return connector

    }

    private JMXServiceURL generateServiceUrl(def protocol, def host, def port) {
        String url = "service:jmx:${protocol}:///jndi/${protocol}://${host}:${port}/jmxrmi"
        return new JMXServiceURL(url)
    }

}

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