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

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Groovy: A powerful, dynamic language for the JVM

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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

/**
 * This factory returns a container node for all other nodes that are used to collect meta data for resources that
 *  are exported to the MBeanServer for management.
 *
 * Supported syntax
 *  *     def jmx = new JmxBuilder()
 *     jmx.export(registrationPolicy:"replace|ignore|error") {
 *         bean(...)
 *    }
 * 
 *
 * registrationPolicy indicates how resources will be registered:
 * "replace" - replaces existing bean,  

 * "ignore" - ignores the registration request if bean already exists.

 * "error" - throws error if bean is already registered.
 * 
 *
 * @author vladimir vivien 
 */
class JmxBeanExportFactory extends AbstractFactory {
    // def server
    def registrationPolicy

    public Object newInstance(FactoryBuilderSupport builder, Object nodeName, Object nodeArgs, Map nodeAttribs) {
        registrationPolicy = nodeAttribs?.remove("policy") ?: nodeAttribs?.remove("regPolicy") ?: "replace"
        return []
    }

    public boolean onHandleNodeAttributes(FactoryBuilderSupport builder, Object node, Map nodeAttribs) {
        return true;
    }

    public boolean isLeaf() {
        return false
    }
}