spring UnboundConfigurationPropertyFailureAnalyzer 源码

  • 2022-08-12
  • 浏览 (465)

springboot UnboundConfigurationPropertyFailureAnalyzer 代码

文件路径:/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/diagnostics/analyzer/UnboundConfigurationPropertyFailureAnalyzer.java

/*
 * Copyright 2012-2022 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
 *
 *      https://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 org.springframework.boot.diagnostics.analyzer;

import org.springframework.boot.context.properties.bind.BindException;
import org.springframework.boot.context.properties.bind.UnboundConfigurationPropertiesException;
import org.springframework.boot.context.properties.source.ConfigurationProperty;
import org.springframework.boot.diagnostics.AbstractFailureAnalyzer;
import org.springframework.boot.diagnostics.FailureAnalysis;

/**
 * An {@link AbstractFailureAnalyzer} that performs analysis of failures caused by any
 * {@link UnboundConfigurationPropertiesException}.
 *
 * @author Madhura Bhave
 */
class UnboundConfigurationPropertyFailureAnalyzer
		extends AbstractFailureAnalyzer<UnboundConfigurationPropertiesException> {

	@Override
	protected FailureAnalysis analyze(Throwable rootFailure, UnboundConfigurationPropertiesException cause) {
		BindException exception = findCause(rootFailure, BindException.class);
		return analyzeUnboundConfigurationPropertiesException(exception, cause);
	}

	private FailureAnalysis analyzeUnboundConfigurationPropertiesException(BindException cause,
			UnboundConfigurationPropertiesException exception) {
		StringBuilder description = new StringBuilder(
				String.format("Binding to target %s failed:%n", cause.getTarget()));
		for (ConfigurationProperty property : exception.getUnboundProperties()) {
			buildDescription(description, property);
			description.append(String.format("%n    Reason: %s", exception.getMessage()));
		}
		return getFailureAnalysis(description, cause);
	}

	private void buildDescription(StringBuilder description, ConfigurationProperty property) {
		if (property != null) {
			description.append(String.format("%n    Property: %s", property.getName()));
			description.append(String.format("%n    Value: \"%s\"", property.getValue()));
			description.append(String.format("%n    Origin: %s", property.getOrigin()));
		}
	}

	private FailureAnalysis getFailureAnalysis(Object description, BindException cause) {
		return new FailureAnalysis(description.toString(), "Update your application's configuration", cause);
	}

}

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