storm-core/src/jvm/org/apache/storm/nimbus/StrictTopologyValidator.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.storm.nimbus;

import org.apache.storm.generated.Bolt;
import org.apache.storm.generated.InvalidTopologyException;
import org.apache.storm.generated.SpoutSpec;
import org.apache.storm.generated.StormTopology;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Map;

public class StrictTopologyValidator implements ITopologyValidator {
    private static final Logger LOG = LoggerFactory.getLogger(StrictTopologyValidator.class);
    @Override
    public void prepare(Map StormConf){
    }
    @Override
    public void validate(String topologyName, Map topologyConf, StormTopology topology) throws InvalidTopologyException {
        if(topologyName.contains(".")){
            throw new InvalidTopologyException(String.format("Topology name '%s' contains illegal character '.'", topologyName));
        }
        Map<String, SpoutSpec> spouts = topology.get_spouts();
        for(String spoutName : spouts.keySet()){
            if(spoutName.contains(".")){
                throw new InvalidTopologyException(String.format("Spout name '%s' contains illegal character '.'", spoutName));
            }
            SpoutSpec spoutSpec = spouts.get(spoutName);
            for(String streamName : spoutSpec.get_common().get_streams().keySet()){
                if(streamName.contains(".")){
                    throw new InvalidTopologyException(String.format("Stream name '%s' contains illegal character '.'", streamName));
                }
            }
        }

        Map<String, Bolt> bolts = topology.get_bolts();
        for(String boltName : bolts.keySet()){
            if(boltName.contains(".")){
                throw new InvalidTopologyException(String.format("Bolt name '%s' contains illegal character '.'", boltName));
            }
            Bolt bolt = bolts.get(boltName);
            for(String streamName : bolt.get_common().get_streams().keySet()){
                if(streamName.contains(".")){
                    throw new InvalidTopologyException(String.format("Stream name '%s' contains illegal character '.'", streamName));
                }
            }
        }
    }    
}