fullstack/hyracks/hyracks-yarn/hyracks-yarn-am/src/main/java/edu/uci/ics/hyracks/yarn/am/manifest/ManifestParser.java

/*
 * Copyright 2009-2010 by The Regents of the University of California
 * 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 from
 * 
 *     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 edu.uci.ics.hyracks.yarn.am.manifest;

import java.io.StringReader;

import org.apache.commons.digester.Digester;

public class ManifestParser {
    public static HyracksCluster parse(String mXML) throws Exception {
        Digester d = createDigester();
        return (HyracksCluster) d.parse(new StringReader(mXML));
    }

    private static Digester createDigester() {
        Digester d = new Digester();
        d.setValidating(false);

        d.addObjectCreate("hyracks-cluster", HyracksCluster.class);
        d.addSetProperties("hyracks-cluster");

        d.addObjectCreate("hyracks-cluster/cluster-controller", ClusterController.class);
        d.addSetProperties("hyracks-cluster/cluster-controller");
        d.addSetNext("hyracks-cluster/cluster-controller", "setClusterController");

        d.addObjectCreate("hyracks-cluster/node-controllers/node-controller", NodeController.class);
        d.addSetProperties("hyracks-cluster/node-controllers/node-controller");
        d.addSetNext("hyracks-cluster/node-controllers/node-controller", "addNodeController");

        d.addObjectCreate("*/container-specification", ContainerSpecification.class);
        d.addSetProperties("*/container-specification");
        d.addSetNext("*/container-specification", "setContainerSpecification");
        return d;
    }
}