/*
* 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 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.bind.validation.BindValidationException;
import org.springframework.boot.context.properties.source.ConfigurationProperty;
import org.springframework.boot.diagnostics.AbstractFailureAnalyzer;
import org.springframework.boot.diagnostics.FailureAnalysis;
import org.springframework.util.StringUtils;
/**
* An {@link AbstractFailureAnalyzer} that performs analysis of failures caused by a
* {@link BindException} excluding {@link BindValidationException} and
* {@link UnboundConfigurationPropertiesException}.
*
* @author Andy Wilkinson
* @author Madhura Bhave
*/
class BindFailureAnalyzer extends AbstractFailureAnalyzer<BindException> {
@Override
protected FailureAnalysis analyze(Throwable rootFailure, BindException cause) {
Throwable rootCause = cause.getCause();
if (rootCause instanceof BindValidationException
|| rootCause instanceof UnboundConfigurationPropertiesException) {
return null;
}
return analyzeGenericBindException(cause);
}
private FailureAnalysis analyzeGenericBindException(BindException cause) {
StringBuilder description = new StringBuilder(
String.format("Binding to target %s failed:%n", cause.getTarget()));
ConfigurationProperty property = cause.getProperty();
buildDescription(description, property);
description.append(String.format("%n Reason: %s", getMessage(cause)));
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 String getMessage(BindException cause) {
if (cause.getCause() != null
&& StringUtils.hasText(cause.getCause().getMessage())) {
return cause.getCause().getMessage();
}
return cause.getMessage();
}
private FailureAnalysis getFailureAnalysis(Object description, BindException cause) {
return new FailureAnalysis(description.toString(),
"Update your application's configuration", cause);
}
}