/*
* 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.context.properties.source;
import java.util.function.Function;
import org.springframework.core.env.PropertySource;
/**
* Details a mapping between a {@link PropertySource} item and a
* {@link ConfigurationPropertySource} item.
*
* @author Phillip Webb
* @author Madhura Bhave
* @see SpringConfigurationPropertySource
*/
class PropertyMapping {
private final String propertySourceName;
private final ConfigurationPropertyName configurationPropertyName;
private final Function<Object, Object> valueExtractor;
/**
* Create a new {@link PropertyMapper} instance.
* @param propertySourceName the {@link PropertySource} name
* @param configurationPropertyName the {@link ConfigurationPropertySource}
* {@link ConfigurationPropertyName}
*/
PropertyMapping(String propertySourceName,
ConfigurationPropertyName configurationPropertyName) {
this(propertySourceName, configurationPropertyName, Function.identity());
}
/**
* Create a new {@link PropertyMapper} instance.
* @param propertySourceName the {@link PropertySource} name
* @param configurationPropertyName the {@link ConfigurationPropertySource}
* {@link ConfigurationPropertyName}
* @param valueExtractor the extractor used to obtain the value
*/
PropertyMapping(String propertySourceName,
ConfigurationPropertyName configurationPropertyName,
Function<Object, Object> valueExtractor) {
this.propertySourceName = propertySourceName;
this.configurationPropertyName = configurationPropertyName;
this.valueExtractor = valueExtractor;
}
/**
* Return the mapped {@link PropertySource} name.
* @return the property source name (never {@code null})
*/
public String getPropertySourceName() {
return this.propertySourceName;
}
/**
* Return the mapped {@link ConfigurationPropertySource}
* {@link ConfigurationPropertyName}.
* @return the configuration property source name (never {@code null})
*/
public ConfigurationPropertyName getConfigurationPropertyName() {
return this.configurationPropertyName;
}
/**
* Return a function that can be used to extract the {@link PropertySource} value.
* @return the value extractor (never {@code null})
*/
public Function<Object, Object> getValueExtractor() {
return this.valueExtractor;
}
/**
* Return if this mapping is applicable for the given
* {@link ConfigurationPropertyName}.
* @param name the name to check
* @return if the mapping is applicable
*/
public boolean isApplicable(ConfigurationPropertyName name) {
return this.configurationPropertyName.equals(name);
}
}