ru.jconsulting.likeable.DomainTypeRegistry.java Source code

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Here is the source code for ru.jconsulting.likeable.DomainTypeRegistry.java

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/* Copyright 2014 Dmitry Borisov
 *
 * 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 ru.jconsulting.likeable;

import grails.util.GrailsNameUtils;
import org.springframework.beans.factory.InitializingBean;

import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * Registry of domain types. Used to store all types of Likeable domains.
 * Type is evaluated by {@link grails.util.GrailsNameUtils#getPropertyName(Class)}
 *
 * @see grails.util.GrailsNameUtils
 */
public class DomainTypeRegistry implements InitializingBean {

    private List<Class<?>> domainClassList;

    private Map<String, Class<?>> type2ClassMap;

    public void afterPropertiesSet() {
        type2ClassMap = new ConcurrentHashMap<String, Class<?>>(domainClassList.size());
        for (Class<?> clazz : domainClassList) {
            type2ClassMap.put(GrailsNameUtils.getPropertyName(clazz), clazz);
        }
    }

    public void setDomainClassList(List<Class<?>> domainClassList) {
        this.domainClassList = domainClassList;
    }

    /**
     * Returns Class of domain by its short type name
     *
     * @param type short type name of domain
     * @return <tt>Class</tt> of domain associated with the <tt>type</tt> param
     * @throws LikeException if there is no Domain associated with such <tt>type</tt>
     */
    public Class<?> getClassByType(String type) {
        if (type2ClassMap.containsKey(type)) {
            return type2ClassMap.get(type);
        }
        throw new LikeException(String.format("Type '%s' is not a Likeable type", type));
    }
}