/**
 * Processing occurs by replacing ${...} placeholders in bean definitions by resolving each
 * against this configurer's set of {@link PropertySources}, which includes:
 * <ul>
 * <li>all {@linkplain org.springframework.core.env.ConfigurableEnvironment#getPropertySources
 * environment property sources}, if an {@code Environment} {@linkplain #setEnvironment is present}
 * <li>{@linkplain #mergeProperties merged local properties}, if {@linkplain #setLocation any}
 * {@linkplain #setLocations have} {@linkplain #setProperties been}
 * {@linkplain #setPropertiesArray specified}
 * <li>any property sources set by calling {@link #setPropertySources}
 * </ul>
 * <p>If {@link #setPropertySources} is called, <strong>environment and local properties will be
 * ignored</strong>. This method is designed to give the user fine-grained control over property
 * sources, and once set, the configurer makes no assumptions about adding additional sources.
 */
@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
	if (this.propertySources == null) {
		this.propertySources = new MutablePropertySources();
		if (this.environment != null) {
			this.propertySources.addLast(
				new PropertySource<Environment>(ENVIRONMENT_PROPERTIES_PROPERTY_SOURCE_NAME, this.environment) {
					@Override
					@Nullable
					public String getProperty(String key) {
						return this.source.getProperty(key);
					}
				}
			);
		}
		try {
			PropertySource<?> localPropertySource =
					new PropertiesPropertySource(LOCAL_PROPERTIES_PROPERTY_SOURCE_NAME, mergeProperties());
			if (this.localOverride) {
				this.propertySources.addFirst(localPropertySource);
			}
			else {
				this.propertySources.addLast(localPropertySource);
			}
		}
		catch (IOException ex) {
			throw new BeanInitializationException("Could not load properties", ex);
		}
	}

	processProperties(beanFactory, new PropertySourcesPropertyResolver(this.propertySources));
	this.appliedPropertySources = this.propertySources;
}
 

protected PropertyResolver getPatternsResolver(Environment environment) {
    if (environment == null) {
        return new PropertySourcesPropertyResolver(null);
    }
    if (environment instanceof ConfigurableEnvironment) {
        PropertySourcesPropertyResolver resolver = new PropertySourcesPropertyResolver(
                ((ConfigurableEnvironment) environment).getPropertySources());
        resolver.setIgnoreUnresolvableNestedPlaceholders(true);
        return resolver;
    }
    return environment;
}
 

/**
 * Processing occurs by replacing ${...} placeholders in bean definitions by resolving each
 * against this configurer's set of {@link PropertySources}, which includes:
 * <ul>
 * <li>all {@linkplain org.springframework.core.env.ConfigurableEnvironment#getPropertySources
 * environment property sources}, if an {@code Environment} {@linkplain #setEnvironment is present}
 * <li>{@linkplain #mergeProperties merged local properties}, if {@linkplain #setLocation any}
 * {@linkplain #setLocations have} {@linkplain #setProperties been}
 * {@linkplain #setPropertiesArray specified}
 * <li>any property sources set by calling {@link #setPropertySources}
 * </ul>
 * <p>If {@link #setPropertySources} is called, <strong>environment and local properties will be
 * ignored</strong>. This method is designed to give the user fine-grained control over property
 * sources, and once set, the configurer makes no assumptions about adding additional sources.
 */
@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
	if (this.propertySources == null) {
		this.propertySources = new MutablePropertySources();
		if (this.environment != null) {
			this.propertySources.addLast(
				new PropertySource<Environment>(ENVIRONMENT_PROPERTIES_PROPERTY_SOURCE_NAME, this.environment) {
					@Override
					@Nullable
					public String getProperty(String key) {
						return this.source.getProperty(key);
					}
				}
			);
		}
		try {
			PropertySource<?> localPropertySource =
					new PropertiesPropertySource(LOCAL_PROPERTIES_PROPERTY_SOURCE_NAME, mergeProperties());
			if (this.localOverride) {
				this.propertySources.addFirst(localPropertySource);
			}
			else {
				this.propertySources.addLast(localPropertySource);
			}
		}
		catch (IOException ex) {
			throw new BeanInitializationException("Could not load properties", ex);
		}
	}

	processProperties(beanFactory, new PropertySourcesPropertyResolver(this.propertySources));
	this.appliedPropertySources = this.propertySources;
}
 

static StringValueResolver buildStringValueResolver(Map<String, Properties> filenameToPropsMap) {
    MutablePropertySources propertySources = new MutablePropertySources();
    for (Map.Entry<String, Properties> entry : filenameToPropsMap.entrySet()) {
        propertySources.addFirst(new PropertiesPropertySource(entry.getKey(), entry.getValue()));
    }
    return buildStringValueResolver(new PropertySourcesPropertyResolver(propertySources));
}
 

@Override
public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) {
    propertyResolverConsumer.accept(new PropertySourcesPropertyResolver(propertySources(
            stepExecution.getJobExecution().getJobConfigurationName(),
            stepExecution.getJobParameters().toProperties(), environment)));
    return FINISHED;
}
 

/**
 * {@inheritDoc}
 * <p>Processing occurs by replacing ${...} placeholders in bean definitions by resolving each
 * against this configurer's set of {@link PropertySources}, which includes:
 * <ul>
 * <li>all {@linkplain org.springframework.core.env.ConfigurableEnvironment#getPropertySources
 * environment property sources}, if an {@code Environment} {@linkplain #setEnvironment is present}
 * <li>{@linkplain #mergeProperties merged local properties}, if {@linkplain #setLocation any}
 * {@linkplain #setLocations have} {@linkplain #setProperties been}
 * {@linkplain #setPropertiesArray specified}
 * <li>any property sources set by calling {@link #setPropertySources}
 * </ul>
 * <p>If {@link #setPropertySources} is called, <strong>environment and local properties will be
 * ignored</strong>. This method is designed to give the user fine-grained control over property
 * sources, and once set, the configurer makes no assumptions about adding additional sources.
 */
@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
	if (this.propertySources == null) {
		this.propertySources = new MutablePropertySources();
		if (this.environment != null) {
			this.propertySources.addLast(
				new PropertySource<Environment>(ENVIRONMENT_PROPERTIES_PROPERTY_SOURCE_NAME, this.environment) {
					@Override
					public String getProperty(String key) {
						return this.source.getProperty(key);
					}
				}
			);
		}
		try {
			PropertySource<?> localPropertySource =
					new PropertiesPropertySource(LOCAL_PROPERTIES_PROPERTY_SOURCE_NAME, mergeProperties());
			if (this.localOverride) {
				this.propertySources.addFirst(localPropertySource);
			}
			else {
				this.propertySources.addLast(localPropertySource);
			}
		}
		catch (IOException ex) {
			throw new BeanInitializationException("Could not load properties", ex);
		}
	}

	processProperties(beanFactory, new PropertySourcesPropertyResolver(this.propertySources));
	this.appliedPropertySources = this.propertySources;
}
 

/**
 * {@inheritDoc}
 * <p>Processing occurs by replacing ${...} placeholders in bean definitions by resolving each
 * against this configurer's set of {@link PropertySources}, which includes:
 * <ul>
 * <li>all {@linkplain org.springframework.core.env.ConfigurableEnvironment#getPropertySources
 * environment property sources}, if an {@code Environment} {@linkplain #setEnvironment is present}
 * <li>{@linkplain #mergeProperties merged local properties}, if {@linkplain #setLocation any}
 * {@linkplain #setLocations have} {@linkplain #setProperties been}
 * {@linkplain #setPropertiesArray specified}
 * <li>any property sources set by calling {@link #setPropertySources}
 * </ul>
 * <p>If {@link #setPropertySources} is called, <strong>environment and local properties will be
 * ignored</strong>. This method is designed to give the user fine-grained control over property
 * sources, and once set, the configurer makes no assumptions about adding additional sources.
 */
@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
	if (this.propertySources == null) {
		this.propertySources = new MutablePropertySources();
		if (this.environment != null) {
			this.propertySources.addLast(
				new PropertySource<Environment>(ENVIRONMENT_PROPERTIES_PROPERTY_SOURCE_NAME, this.environment) {
					@Override
					public String getProperty(String key) {
						return this.source.getProperty(key);
					}
				}
			);
		}
		try {
			PropertySource<?> localPropertySource =
					new PropertiesPropertySource(LOCAL_PROPERTIES_PROPERTY_SOURCE_NAME, mergeProperties());
			if (this.localOverride) {
				this.propertySources.addFirst(localPropertySource);
			}
			else {
				this.propertySources.addLast(localPropertySource);
			}
		}
		catch (IOException ex) {
			throw new BeanInitializationException("Could not load properties", ex);
		}
	}

	processProperties(beanFactory, new PropertySourcesPropertyResolver(this.propertySources));
	this.appliedPropertySources = this.propertySources;
}
 

@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
	if (this.propertySources == null) {
		this.propertySources = new MutablePropertySources();
		if (this.environment != null) {
			this.propertySources.addLast(
					new PropertySource<Environment>(ENVIRONMENT_PROPERTIES_PROPERTY_SOURCE_NAME, this.environment) {
						@Override
						public String getProperty(String key) {
							return this.source.getProperty(key);
						}
					});
		}
		PropertySource<?> localPropertySource = new PropertySource<Configuration>(
				PropertySourcesPlaceholderConfigurer.LOCAL_PROPERTIES_PROPERTY_SOURCE_NAME, configuration) {
			@Override
			public Object getProperty(String name) {
				if (name != null && name.indexOf("?:") > 0) {
					name = name.substring(0, name.indexOf("?:"));
				}
				return this.source.getProperty(name);
			}
		};
		propertySources.addFirst(localPropertySource);
	}

	processProperties(beanFactory, new PropertySourcesPropertyResolver(this.propertySources));
	this.appliedPropertySources = this.propertySources;
}
 

private PropertyResolver getPatternsResolver(Environment environment) {
	if (environment == null) {
		return new PropertySourcesPropertyResolver(null);
	}
	return RelaxedPropertyResolver.ignoringUnresolvableNestedPlaceholders(environment, "logging.");
}
 

/**
 * Get prefixed {@link Properties}
 *
 * @param propertySources {@link PropertySources}
 * @param prefix          the prefix of property name
 * @return Map
 * @see Properties
 * @since 1.0.3
 */
public static Map<String, Object> getSubProperties(PropertySources propertySources, String prefix) {
    return getSubProperties(propertySources, new PropertySourcesPropertyResolver(propertySources), prefix);
}