Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* Copyright 2012-2017 the original author or authors.
*
* 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 lodsve.core.condition;
import lodsve.core.condition.ConditionMessage.Style;
import org.springframework.context.annotation.Condition;
import org.springframework.context.annotation.ConditionContext;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.core.type.AnnotatedTypeMetadata;
import org.springframework.util.ClassUtils;
import org.springframework.util.MultiValueMap;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
/**
* {@link Condition} that checks for the
* presence or absence of specific classes.
*
* @author Phillip Webb
* @see ConditionalOnClass
* @see ConditionalOnMissingClass
*/
@Order(Ordered.HIGHEST_PRECEDENCE)
class OnClassCondition extends SpringBootCondition {
@Override
public ConditionOutcome getMatchOutcome(ConditionContext context,
AnnotatedTypeMetadata metadata) {
ClassLoader classLoader = context.getClassLoader();
ConditionMessage matchMessage = ConditionMessage.empty();
List onClasses = getCandidates(metadata, ConditionalOnClass.class);
if (onClasses != null) {
List missing = getMatches(onClasses, MatchType.MISSING, classLoader);
if (!missing.isEmpty()) {
return ConditionOutcome
.noMatch(ConditionMessage.forCondition(ConditionalOnClass.class)
.didNotFind("required class", "required classes")
.items(Style.QUOTE, missing));
}
matchMessage = matchMessage.andCondition(ConditionalOnClass.class)
.found("required class", "required classes").items(Style.QUOTE,
getMatches(onClasses, MatchType.PRESENT, classLoader));
}
List onMissingClasses = getCandidates(metadata,
ConditionalOnMissingClass.class);
if (onMissingClasses != null) {
List present = getMatches(onMissingClasses, MatchType.PRESENT,
classLoader);
if (!present.isEmpty()) {
return ConditionOutcome.noMatch(
ConditionMessage.forCondition(ConditionalOnMissingClass.class)
.found("unwanted class", "unwanted classes")
.items(Style.QUOTE, present));
}
matchMessage = matchMessage.andCondition(ConditionalOnMissingClass.class)
.didNotFind("unwanted class", "unwanted classes").items(Style.QUOTE,
getMatches(onMissingClasses, MatchType.MISSING, classLoader));
}
return ConditionOutcome.match(matchMessage);
}
private List getCandidates(AnnotatedTypeMetadata metadata,
Class annotationType) {
MultiValueMap attributes = metadata
.getAllAnnotationAttributes(annotationType.getName(), true);
List candidates = new ArrayList();
if (attributes == null) {
return Collections.emptyList();
}
addAll(candidates, attributes.get("value"));
addAll(candidates, attributes.get("name"));
return candidates;
}
private void addAll(List list, List
