# EvaluatorSerializerFinder.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.synapse.commons.evaluators.config;

    import java.util.Map;
    import java.util.HashMap;

    /**
     * {@link EvaluatorSerializer}s for serializing Evaluators are found using the evaluator name.
     * This class stores information about Evaluator Serializers and their corresponding names. This
     * is a Singleton.
     */
    public class EvaluatorSerializerFinder {
        private static final EvaluatorSerializerFinder finder = new EvaluatorSerializerFinder();

        private Map<String, EvaluatorSerializer> serializerMap =
                new HashMap<String, EvaluatorSerializer>();

        private EvaluatorSerializerFinder() {
            serializerMap.put("and", new AndSerializer());
            serializerMap.put("or", new OrSerializer());
            serializerMap.put("not", new NotSerializer());
            serializerMap.put("match", new MatchSerializer());
            serializerMap.put("equal", new EqualSerializer());
        }

        public static EvaluatorSerializerFinder getInstance() {
            return finder;
        }

        public EvaluatorSerializer getSerializer(String name) {
            return serializerMap.get(name);
        }
    }