groovy.jmx.builder.JmxClientConnectorFactory.groovy Maven / Gradle / Ivy

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/*
 * 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.
 *
 *  * JmxBuilder.clientConnector (
 *    protocol:"rmi",
 *    host:"...",
 *    port:1099,
 *    url:"...",
 * )
 * 
 *
 * @author Vladimir Vivien
 * @see 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)
    }

}