Package org.springframework.core.env

Class PropertySourcesPropertyResolver

java.lang.Object

org.springframework.core.env.AbstractPropertyResolver

org.springframework.core.env.PropertySourcesPropertyResolver

All Implemented Interfaces:

ConfigurablePropertyResolver, PropertyResolver

public class PropertySourcesPropertyResolver
extends AbstractPropertyResolver

PropertyResolver implementation that resolves property values against an underlying set of PropertySources.

Since:

3.1

Author:

Chris Beams, Juergen Hoeller

See Also:

• PropertySource
• PropertySources
• AbstractEnvironment

Field Summary

Fields inherited from class org.springframework.core.env.AbstractPropertyResolver

DEFAULT_PLACEHOLDER_ESCAPE_CHARACTER_PROPERTY_NAME, logger

Constructor Summary

Constructors

Constructor	Description
PropertySourcesPropertyResolver(PropertySources propertySources)	Create a new resolver against the given property sources.

Method Summary

Modifier and Type	Method	Description
boolean	containsProperty(String key)	Determine whether the given property key is available for resolution — for example, if the value for the given key is not null.
String	getProperty(String key)	Resolve the property value associated with the given key, or null if the key cannot be resolved.
<T> T	getProperty(String key, Class<T> targetValueType)	Resolve the property value associated with the given key, or null if the key cannot be resolved.
protected <T> T	getProperty(String key, Class<T> targetValueType, boolean resolveNestedPlaceholders)
protected String	getPropertyAsRawString(String key)	Retrieve the specified property as a raw String, i.e.
protected void	logKeyFound(String key, PropertySource<?> propertySource, Object value)	Log the given key as found in the given PropertySource, resulting in the given value.

Methods inherited from class org.springframework.core.env.AbstractPropertyResolver

convertValueIfNecessary, getConversionService, getDefaultEscapeCharacter, getProperty, getProperty, getRequiredProperty, getRequiredProperty, resolveNestedPlaceholders, resolvePlaceholders, resolveRequiredPlaceholders, setConversionService, setEscapeCharacter, setIgnoreUnresolvableNestedPlaceholders, setPlaceholderPrefix, setPlaceholderSuffix, setRequiredProperties, setValueSeparator, validateRequiredProperties

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

PropertySourcesPropertyResolver

public PropertySourcesPropertyResolver(@Nullable
 PropertySources propertySources)

Create a new resolver against the given property sources.

Parameters:

propertySources - the set of PropertySource objects to use

Method Details

containsProperty

public boolean containsProperty(String key)

Description copied from interface: PropertyResolver

Determine whether the given property key is available for resolution — for example, if the value for the given key is not null.

Specified by:

containsProperty in interface PropertyResolver

Overrides:

containsProperty in class AbstractPropertyResolver

getProperty

@Nullable
public String getProperty(String key)

Description copied from interface: PropertyResolver

Resolve the property value associated with the given key, or null if the key cannot be resolved.

Specified by:

getProperty in interface PropertyResolver

Overrides:

getProperty in class AbstractPropertyResolver

Parameters:

key - the property name to resolve

See Also:

• PropertyResolver.getProperty(String, String)
• PropertyResolver.getProperty(String, Class)
• PropertyResolver.getRequiredProperty(String)

getProperty

@Nullable
public <T> T getProperty(String key,
 Class<T> targetValueType)

Description copied from interface: PropertyResolver

Resolve the property value associated with the given key, or null if the key cannot be resolved.

Parameters:

key - the property name to resolve

targetValueType - the expected type of the property value

See Also:

• PropertyResolver.getRequiredProperty(String, Class)

getPropertyAsRawString

@Nullable
protected String getPropertyAsRawString(String key)

Description copied from class: AbstractPropertyResolver

Retrieve the specified property as a raw String, i.e. without resolution of nested placeholders.

Specified by:

getPropertyAsRawString in class AbstractPropertyResolver

Parameters:

key - the property name to resolve

Returns:

the property value or null if none found

getProperty

@Nullable
protected <T> T getProperty(String key,
 Class<T> targetValueType,
 boolean resolveNestedPlaceholders)

logKeyFound

protected void logKeyFound(String key,
 PropertySource<?> propertySource,
 Object value)

Log the given key as found in the given PropertySource, resulting in the given value.

The default implementation writes a debug log message with key and source. As of 4.3.3, this does not log the value anymore in order to avoid accidental logging of sensitive settings. Subclasses may override this method to change the log level and/or log message, including the property's value if desired.

Parameters:

key - the key found

propertySource - the PropertySource that the key has been found in

value - the corresponding value

Since:

4.3.1