001/**
002 * Copyright 2005-2016 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.kuali.rice.krms.api;
017
018import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;
019import org.kuali.rice.krms.api.engine.Engine;
020import org.kuali.rice.krms.api.engine.expression.ComparisonOperatorService;
021import org.kuali.rice.krms.api.repository.RuleRepositoryService;
022import org.kuali.rice.krms.api.repository.type.KrmsTypeRepositoryService;
023
024import javax.xml.namespace.QName;
025
026/**
027 * A static service locator which aids in locating the various remotable services that form the Kuali Rule Management System API.
028 *
029 * @author Kuali Rice Team (rice.collab@kuali.org)
030 */
031public class KrmsApiServiceLocator {
032
033        public static final String ENGINE = "rice.krms.engine";
034        public static final QName RULE_REPOSITORY_SERVICE = new QName(KrmsConstants.Namespaces.KRMS_NAMESPACE_2_0, "ruleRepositoryService");
035    public static final QName KRMS_TYPE_REPOSITORY_SERVICE = new QName(KrmsConstants.Namespaces.KRMS_NAMESPACE_2_0, "krmsTypeRepositoryService");
036    public static final String COMPARISON_SERVICE = "comparisonOperatorService";
037
038    /**
039     * Get the named service
040     * @param serviceName
041     * @param <T>
042     * @return  <T> T
043     */
044    static <T> T getService(String serviceName) {
045        return GlobalResourceLoader.<T>getService(QName.valueOf(serviceName));
046    }
047
048    /**
049     * Get the qnamed service
050     * @param serviceName
051     * @param <T>
052     * @return <T> T
053     */
054    static <T> T getService(QName serviceName) {
055        return GlobalResourceLoader.<T>getService(serviceName);
056    }
057
058    /**
059     * Return the {@link Engine}
060     * @return {@link Engine}
061     */
062    public static Engine getEngine() {
063        return getService(ENGINE);
064    }
065
066    /**
067     * Return the {@link RuleRepositoryService}
068     * @return {@link RuleRepositoryService}
069     */
070    public static RuleRepositoryService getRuleRepositoryService() {
071        return getService(RULE_REPOSITORY_SERVICE);
072    }
073
074    /**
075     * Return the {@link KrmsTypeRepositoryService}
076     * @return {@link KrmsTypeRepositoryService}
077     */
078    public static KrmsTypeRepositoryService getKrmsTypeRepositoryService() {
079        return getService(KRMS_TYPE_REPOSITORY_SERVICE);
080    }
081
082    /**
083     * Return the {@link ComparisonOperatorService}
084     * @return {@link ComparisonOperatorService}
085     */
086    public static ComparisonOperatorService getComparisonOperatorService() {
087        return getService(COMPARISON_SERVICE);
088    }
089}