001/*
002 * Copyright 2012-2017 the original author or authors.
003 *
004 * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
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 */
016
017package org.springframework.boot.autoconfigure.hazelcast;
018
019import org.springframework.boot.autoconfigure.condition.ConditionOutcome;
020import org.springframework.boot.autoconfigure.condition.ResourceCondition;
021import org.springframework.boot.autoconfigure.condition.SpringBootCondition;
022import org.springframework.context.annotation.ConditionContext;
023import org.springframework.core.type.AnnotatedTypeMetadata;
024import org.springframework.util.Assert;
025
026/**
027 * {@link SpringBootCondition} used to check if the Hazelcast configuration is available.
028 * This either kicks in if a default configuration has been found or if configurable
029 * property referring to the resource to use has been set.
030 *
031 * @author Stephane Nicoll
032 * @author Madhura Bhave
033 * @author Vedran Pavic
034 * @since 1.3.0
035 */
036public abstract class HazelcastConfigResourceCondition extends ResourceCondition {
037
038        private final String configSystemProperty;
039
040        protected HazelcastConfigResourceCondition(String configSystemProperty,
041                        String... resourceLocations) {
042                super("Hazelcast", "spring.hazelcast.config", resourceLocations);
043                Assert.notNull(configSystemProperty, "ConfigSystemProperty must not be null");
044                this.configSystemProperty = configSystemProperty;
045        }
046
047        @Override
048        protected ConditionOutcome getResourceOutcome(ConditionContext context,
049                        AnnotatedTypeMetadata metadata) {
050                if (System.getProperty(this.configSystemProperty) != null) {
051                        return ConditionOutcome.match(startConditionMessage().because(
052                                        "System property '" + this.configSystemProperty + "' is set."));
053                }
054                return super.getResourceOutcome(context, metadata);
055        }
056
057}