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.condition; 018 019import java.util.ArrayList; 020import java.util.List; 021 022import org.springframework.context.annotation.Condition; 023 024/** 025 * {@link Condition} that will match when all nested class conditions match. Can be used 026 * to create composite conditions, for example: 027 * 028 * <pre class="code"> 029 * static class OnJndiAndProperty extends AllNestedConditions { 030 * 031 * OnJndiAndProperty() { 032 * super(ConfigurationPhase.PARSE_CONFIGURATION); 033 * } 034 * 035 * @ConditionalOnJndi() 036 * static class OnJndi { 037 * } 038 * 039 * @ConditionalOnProperty("something") 040 * static class OnProperty { 041 * } 042 * 043 * } 044 * </pre> 045 * <p> 046 * The 047 * {@link org.springframework.context.annotation.ConfigurationCondition.ConfigurationPhase 048 * ConfigurationPhase} should be specified according to the conditions that are defined. 049 * In the example above, all conditions are static and can be evaluated early so 050 * {@code PARSE_CONFIGURATION} is a right fit. 051 * 052 * @author Phillip Webb 053 * @since 1.3.0 054 */ 055public abstract class AllNestedConditions extends AbstractNestedCondition { 056 057 public AllNestedConditions(ConfigurationPhase configurationPhase) { 058 super(configurationPhase); 059 } 060 061 @Override 062 protected ConditionOutcome getFinalMatchOutcome(MemberMatchOutcomes memberOutcomes) { 063 boolean match = hasSameSize(memberOutcomes.getMatches(), memberOutcomes.getAll()); 064 List<ConditionMessage> messages = new ArrayList<>(); 065 messages.add(ConditionMessage.forCondition("AllNestedConditions") 066 .because(memberOutcomes.getMatches().size() + " matched " 067 + memberOutcomes.getNonMatches().size() + " did not")); 068 for (ConditionOutcome outcome : memberOutcomes.getAll()) { 069 messages.add(outcome.getConditionMessage()); 070 } 071 return new ConditionOutcome(match, ConditionMessage.of(messages)); 072 } 073 074 private boolean hasSameSize(List<?> list1, List<?> list2) { 075 return list1.size() == list2.size(); 076 } 077 078}