Package io.micronaut.context.env

Class DefaultEnvironment

java.lang.Object
io.micronaut.context.env.PropertySourcePropertyResolver
io.micronaut.context.env.DefaultEnvironment
All Implemented Interfaces:
Environment, LifeCycle<Environment>, ConversionService, MutableConversionService, ResourceLoader, PropertyResolver, ValueResolver<String>, Closeable, AutoCloseable
public class DefaultEnvironment extends PropertySourcePropertyResolver implements Environment

The default implementation of the Environment interface. Configures a named environment.

Since:
1.0
Author:
Graeme Rocher, rvanderwerf

  • Field Details

  • Constructor Details

    • DefaultEnvironment

      public DefaultEnvironment(@NonNull @NonNull ApplicationContextConfiguration configuration)
      Construct a new environment for the given configuration.
      Parameters:
      configuration - The configuration

    • DefaultEnvironment

      public DefaultEnvironment(@NonNull @NonNull ApplicationContextConfiguration configuration, boolean logEnabled)
      Construct a new environment for the given configuration.
      Parameters:
      configuration - The configuration
      logEnabled - flag to enable or disable logger

  • Method Details

    • isPresent

      public boolean isPresent(String className)
      Description copied from interface: Environment
      Check whether the given class is present within this environment.
      Specified by:
      isPresent in interface Environment
      Parameters:
      className - The class name
      Returns:
      True if it is

    • getPlaceholderResolver

      public PropertyPlaceholderResolver getPlaceholderResolver()
      Specified by:
      getPlaceholderResolver in interface Environment
      Returns:
      The placeholder resolver

    • scan

      public Stream<Class<?>> scan(Class<? extends Annotation> annotation)
      Description copied from interface: Environment
      Scan the current environment for classes annotated with the given annotation. Use with care, repeated invocations should be avoided for performance reasons.
      Specified by:
      scan in interface Environment
      Parameters:
      annotation - The annotation to scan
      Returns:
      The classes

    • scan

      public Stream<Class<?>> scan(Class<? extends Annotation> annotation, String... packages)
      Description copied from interface: Environment
      Scan the current environment for classes annotated with the given annotation. Use with care, repeated invocations should be avoided for performance reasons.
      Specified by:
      scan in interface Environment
      Parameters:
      annotation - The annotation to scan
      packages - The packages to scan
      Returns:
      The classes

    • getClassLoader

      public ClassLoader getClassLoader()
      Specified by:
      getClassLoader in interface Environment
      Returns:
      The class loader for the environment

    • isActive

      public boolean isActive(BeanConfiguration configuration)
      Description copied from interface: Environment
      Whether the current environment includes the given configuration.
      Specified by:
      isActive in interface Environment
      Parameters:
      configuration - The configuration
      Returns:
      True if it does

    • addPropertySource

      public DefaultEnvironment addPropertySource(PropertySource propertySource)
      Description copied from class: PropertySourcePropertyResolver
      Add a PropertySource to this resolver.
      Specified by:
      addPropertySource in interface Environment
      Overrides:
      addPropertySource in class PropertySourcePropertyResolver
      Parameters:
      propertySource - The PropertySource to add
      Returns:
      This PropertySourcePropertyResolver

    • removePropertySource

      public Environment removePropertySource(PropertySource propertySource)
      Description copied from interface: Environment
      Removes a property source from this environment.
      Specified by:
      removePropertySource in interface Environment
      Parameters:
      propertySource - The property source
      Returns:
      This environment

    • addPropertySource

      public DefaultEnvironment addPropertySource(String name, Map<String,? super Object> values)
      Description copied from class: PropertySourcePropertyResolver
      Add a property source for the given map.
      Specified by:
      addPropertySource in interface Environment
      Overrides:
      addPropertySource in class PropertySourcePropertyResolver
      Parameters:
      name - The name of the property source
      values - The values
      Returns:
      This environment

    • addPackage

      public Environment addPackage(String pkg)
      Description copied from interface: Environment
      Add an application package. Application packages are candidates for scanning for tools that need it (such as JPA).
      Specified by:
      addPackage in interface Environment
      Parameters:
      pkg - The package to add
      Returns:
      This environment

    • addConfigurationExcludes

      public Environment addConfigurationExcludes(@Nullable @Nullable String... names)
      Description copied from interface: Environment
      Exclude configurations by name.
      Specified by:
      addConfigurationExcludes in interface Environment
      Parameters:
      names - The names of the configuration
      Returns:
      This environment

    • addConfigurationIncludes

      public Environment addConfigurationIncludes(String... names)
      Description copied from interface: Environment
      Exclude configurations by name.
      Specified by:
      addConfigurationIncludes in interface Environment
      Parameters:
      names - The names of the configuration
      Returns:
      This environment

    • getPackages

      public Collection<String> getPackages()
      Specified by:
      getPackages in interface Environment
      Returns:
      The application packages

    • getActiveNames

      public Set<String> getActiveNames()
      Description copied from interface: Environment
      Should respect the order as provided.
      Specified by:
      getActiveNames in interface Environment
      Returns:
      The active environment names

    • getPropertySources

      public Collection<PropertySource> getPropertySources()
      Specified by:
      getPropertySources in interface Environment
      Returns:
      The active property sources

    • start

      public Environment start()
      Description copied from interface: LifeCycle
      Starts the lifecyle component.
      Specified by:
      start in interface LifeCycle<Environment>
      Returns:
      This lifecycle component

    • isRunning

      public boolean isRunning()
      Specified by:
      isRunning in interface LifeCycle<Environment>
      Returns:
      Whether the component is running

    • stop

      public Environment stop()
      Description copied from interface: LifeCycle
      Stops the life cycle component.
      Specified by:
      stop in interface LifeCycle<Environment>
      Returns:
      This lifecycle component

    • refreshAndDiff

      public Map<String,Object> refreshAndDiff()
      Description copied from interface: Environment
      Refresh the environment from the list of PropertySource instances and return a diff of the changes.
      Specified by:
      refreshAndDiff in interface Environment
      Returns:
      The values that changed

    • convert

      public <T> Optional<T> convert(Object object, Class<T> targetType, ConversionContext context)
      Description copied from interface: ConversionService
      Attempts to convert the given object to the given target type. If conversion fails or is not possible an empty Optional is returned.
      Specified by:
      convert in interface ConversionService
      Type Parameters:
      T - The target type
      Parameters:
      object - The object to convert
      targetType - The target type
      context - The conversion context
      Returns:
      The optional

    • convert

      public <S, T> Optional<T> convert(S object, Class<? super S> sourceType, Class<T> targetType, ConversionContext context)
      Description copied from interface: ConversionService
      Attempts to convert the given object to the given target type from the given source type. If conversion fails or is not possible an empty Optional is returned.
      Specified by:
      convert in interface ConversionService
      Type Parameters:
      S - The source type
      T - The target type
      Parameters:
      object - The object to convert
      sourceType - The source type
      targetType - The target type
      context - The conversion context
      Returns:
      The optional

    • canConvert

      public <S, T> boolean canConvert(Class<S> sourceType, Class<T> targetType)
      Description copied from interface: ConversionService
      Return whether the given source type is convertible to the given target type.
      Specified by:
      canConvert in interface ConversionService
      Type Parameters:
      S - The generic source type
      T - The target source type
      Parameters:
      sourceType - The source type
      targetType - The target type
      Returns:
      True if it can be converted

    • addConverter

      public <S, T> void addConverter(Class<S> sourceType, Class<T> targetType, TypeConverter<S,T> typeConverter)
      Description copied from interface: MutableConversionService
      Adds a type converter.
      Specified by:
      addConverter in interface MutableConversionService
      Type Parameters:
      S - The source generic type
      T - The target generic type
      Parameters:
      sourceType - The source type
      targetType - The target type
      typeConverter - The type converter

    • addConverter

      public <S, T> void addConverter(Class<S> sourceType, Class<T> targetType, Function<S,T> typeConverter)
      Description copied from interface: MutableConversionService
      Adds a type converter.
      Specified by:
      addConverter in interface MutableConversionService
      Type Parameters:
      S - The source generic type
      T - The target generic type
      Parameters:
      sourceType - The source type
      targetType - The target type
      typeConverter - The type converter

    • getMutableConversionService

      @Internal public MutableConversionService getMutableConversionService()
      Returns:
      The mutable conversion service.

    • getResourceAsStream

      public Optional<InputStream> getResourceAsStream(String path)
      Description copied from interface: ResourceLoader
      Obtains a resource as a stream.
      Specified by:
      getResourceAsStream in interface ResourceLoader
      Parameters:
      path - The path
      Returns:
      An optional resource

    • getResource

      public Optional<URL> getResource(String path)
      Description copied from interface: ResourceLoader
      Obtains the URL to a given resource.
      Specified by:
      getResource in interface ResourceLoader
      Parameters:
      path - The path
      Returns:
      An optional resource

    • getResources

      public Stream<URL> getResources(String path)
      Description copied from interface: ResourceLoader
      Obtains all resources with the given name.
      Specified by:
      getResources in interface ResourceLoader
      Parameters:
      path - The name of the resource
      Returns:
      A stream of URLs

    • supportsPrefix

      public boolean supportsPrefix(String path)
      Specified by:
      supportsPrefix in interface ResourceLoader
      Parameters:
      path - The path to a resource including a prefix appended by a colon. Ex (classpath:, file:)
      Returns:
      Whether the given resource loader supports the prefix

    • forBase

      public ResourceLoader forBase(String basePath)
      Description copied from interface: ResourceLoader
      Constructs a new resource loader designed to load resources from the given path. Requested resources will be loaded within the context of the given path.
      Specified by:
      forBase in interface ResourceLoader
      Parameters:
      basePath - The path to load resources
      Returns:
      The new ResourceLoader

    • shouldDeduceEnvironments

      protected boolean shouldDeduceEnvironments()
      Returns:
      Whether environment names and packages should be deduced

    • shouldDeduceCloudEnvironment

      protected boolean shouldDeduceCloudEnvironment()
      Returns:
      Whether cloud environment should be deduced based on environment variable, system property or configuration

    • createAnnotationScanner

      protected BeanIntrospectionScanner createAnnotationScanner(ClassLoader classLoader)
      Creates the default annotation scanner.
      Parameters:
      classLoader - The class loader
      Returns:
      The scanner

    • getPropertySourceRootName

      protected String getPropertySourceRootName()
      Returns:
      The property source root name

    • readPropertySources

      protected void readPropertySources(String name)
      Parameters:
      name - The name to read property sources

    • getConstantPropertySources

      protected List<PropertySource> getConstantPropertySources()
      Returns:
      Property sources created at build time

    • readPropertySourceListKeyFromEnvironment

      protected String readPropertySourceListKeyFromEnvironment()
      Reads the value of MICRONAUT_CONFIG_FILES environment variable.
      Returns:
      The comma-separated list of files

    • readPropertySourceListFromFiles

      protected List<PropertySource> readPropertySourceListFromFiles(String files)
      Resolve the property sources for files passed via system property and system env.
      Parameters:
      files - The comma separated list of files
      Returns:
      The list of property sources for each file

    • readPropertySourceList

      protected List<PropertySource> readPropertySourceList(String name)
      Parameters:
      name - The name to resolver property sources
      Returns:
      The list of property sources

    • addDefaultPropertySources

      protected void addDefaultPropertySources(List<PropertySource> propertySources)
      Adds default property sources.
      Parameters:
      propertySources - The list of property sources

    • readPropertySourceLoaders

      protected SoftServiceLoader<PropertySourceLoader> readPropertySourceLoaders()
      Returns:
      Loaded properties as a SoftServiceLoader

    • getPropertySourceLoaders

      public Collection<PropertySourceLoader> getPropertySourceLoaders()
      Obtains the PropertySourceLoader instances.
      Specified by:
      getPropertySourceLoaders in interface Environment
      Returns:
      A collection of PropertySourceLoader

    • close

      public void close()
      Description copied from interface: LifeCycle
      Delegates to LifeCycle.stop().
      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface Closeable
      Specified by:
      close in interface LifeCycle<Environment>
      Overrides:
      close in class PropertySourcePropertyResolver