org.springframework.boot.context.config.ConfigFileApplicationListener Maven / Gradle / Ivy
/*
* Copyright 2012-2020 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
*
* https://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.config;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.Deque;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.function.BiConsumer;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.apache.commons.logging.Log;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.context.event.ApplicationEnvironmentPreparedEvent;
import org.springframework.boot.context.event.ApplicationPreparedEvent;
import org.springframework.boot.context.properties.bind.Bindable;
import org.springframework.boot.context.properties.bind.Binder;
import org.springframework.boot.context.properties.bind.PropertySourcesPlaceholdersResolver;
import org.springframework.boot.context.properties.source.ConfigurationPropertySources;
import org.springframework.boot.env.EnvironmentPostProcessor;
import org.springframework.boot.env.PropertySourceLoader;
import org.springframework.boot.env.RandomValuePropertySource;
import org.springframework.boot.logging.DeferredLog;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.ConfigurationClassPostProcessor;
import org.springframework.context.event.SmartApplicationListener;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.AnnotationAwareOrderComparator;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.Environment;
import org.springframework.core.env.MutablePropertySources;
import org.springframework.core.env.Profiles;
import org.springframework.core.env.PropertySource;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.core.io.support.ResourcePatternResolver;
import org.springframework.core.io.support.SpringFactoriesLoader;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;
import org.springframework.util.ObjectUtils;
import org.springframework.util.ResourceUtils;
import org.springframework.util.StringUtils;
/**
* {@link EnvironmentPostProcessor} that configures the context environment by loading
* properties from well known file locations. By default properties will be loaded from
* 'application.properties' and/or 'application.yml' files in the following locations:
*
* - file:./config/
* - file:./config/{@literal *}/
* - file:./
* - classpath:config/
* - classpath:
*
* The list is ordered by precedence (properties defined in locations higher in the list
* override those defined in lower locations).
*
* Alternative search locations and names can be specified using
* {@link #setSearchLocations(String)} and {@link #setSearchNames(String)}.
*
* Additional files will also be loaded based on active profiles. For example if a 'web'
* profile is active 'application-web.properties' and 'application-web.yml' will be
* considered.
*
* The 'spring.config.name' property can be used to specify an alternative name to load
* and the 'spring.config.location' property can be used to specify alternative search
* locations or specific files.
*
*
* @author Dave Syer
* @author Phillip Webb
* @author Stephane Nicoll
* @author Andy Wilkinson
* @author Eddú Meléndez
* @author Madhura Bhave
* @since 1.0.0
*/
public class ConfigFileApplicationListener implements EnvironmentPostProcessor, SmartApplicationListener, Ordered {
private static final String DEFAULT_PROPERTIES = "defaultProperties";
// Note the order is from least to most specific (last one wins)
private static final String DEFAULT_SEARCH_LOCATIONS = "classpath:/,classpath:/config/,file:./,file:./config/*/,file:./config/";
private static final String DEFAULT_NAMES = "application";
private static final Set NO_SEARCH_NAMES = Collections.singleton(null);
private static final Bindable STRING_ARRAY = Bindable.of(String[].class);
private static final Bindable> STRING_LIST = Bindable.listOf(String.class);
private static final Set LOAD_FILTERED_PROPERTY;
static {
Set filteredProperties = new HashSet<>();
filteredProperties.add("spring.profiles.active");
filteredProperties.add("spring.profiles.include");
LOAD_FILTERED_PROPERTY = Collections.unmodifiableSet(filteredProperties);
}
/**
* The "active profiles" property name.
*/
public static final String ACTIVE_PROFILES_PROPERTY = "spring.profiles.active";
/**
* The "includes profiles" property name.
*/
public static final String INCLUDE_PROFILES_PROPERTY = "spring.profiles.include";
/**
* The "config name" property name.
*/
public static final String CONFIG_NAME_PROPERTY = "spring.config.name";
/**
* The "config location" property name.
*/
public static final String CONFIG_LOCATION_PROPERTY = "spring.config.location";
/**
* The "config additional location" property name.
*/
public static final String CONFIG_ADDITIONAL_LOCATION_PROPERTY = "spring.config.additional-location";
/**
* The default order for the processor.
*/
public static final int DEFAULT_ORDER = Ordered.HIGHEST_PRECEDENCE + 10;
private final DeferredLog logger = new DeferredLog();
private static final Resource[] EMPTY_RESOURCES = {};
private static final Comparator FILE_COMPARATOR = Comparator.comparing(File::getAbsolutePath);
private String searchLocations;
private String names;
private int order = DEFAULT_ORDER;
@Override
public boolean supportsEventType(Class eventType) {
return ApplicationEnvironmentPreparedEvent.class.isAssignableFrom(eventType)
|| ApplicationPreparedEvent.class.isAssignableFrom(eventType);
}
@Override
public void onApplicationEvent(ApplicationEvent event) {
if (event instanceof ApplicationEnvironmentPreparedEvent) {
onApplicationEnvironmentPreparedEvent((ApplicationEnvironmentPreparedEvent) event);
}
if (event instanceof ApplicationPreparedEvent) {
onApplicationPreparedEvent(event);
}
}
private void onApplicationEnvironmentPreparedEvent(ApplicationEnvironmentPreparedEvent event) {
List postProcessors = loadPostProcessors();
postProcessors.add(this);
AnnotationAwareOrderComparator.sort(postProcessors);
for (EnvironmentPostProcessor postProcessor : postProcessors) {
postProcessor.postProcessEnvironment(event.getEnvironment(), event.getSpringApplication());
}
}
List loadPostProcessors() {
return SpringFactoriesLoader.loadFactories(EnvironmentPostProcessor.class, getClass().getClassLoader());
}
@Override
public void postProcessEnvironment(ConfigurableEnvironment environment, SpringApplication application) {
addPropertySources(environment, application.getResourceLoader());
}
private void onApplicationPreparedEvent(ApplicationEvent event) {
this.logger.switchTo(ConfigFileApplicationListener.class);
addPostProcessors(((ApplicationPreparedEvent) event).getApplicationContext());
}
/**
* Add config file property sources to the specified environment.
* @param environment the environment to add source to
* @param resourceLoader the resource loader
* @see #addPostProcessors(ConfigurableApplicationContext)
*/
protected void addPropertySources(ConfigurableEnvironment environment, ResourceLoader resourceLoader) {
RandomValuePropertySource.addToEnvironment(environment);
new Loader(environment, resourceLoader).load();
}
/**
* Add appropriate post-processors to post-configure the property-sources.
* @param context the context to configure
*/
protected void addPostProcessors(ConfigurableApplicationContext context) {
context.addBeanFactoryPostProcessor(new PropertySourceOrderingPostProcessor(context));
}
public void setOrder(int order) {
this.order = order;
}
@Override
public int getOrder() {
return this.order;
}
/**
* Set the search locations that will be considered as a comma-separated list. Each
* search location should be a directory path (ending in "/") and it will be prefixed
* by the file names constructed from {@link #setSearchNames(String) search names} and
* profiles (if any) plus file extensions supported by the properties loaders.
* Locations are considered in the order specified, with later items taking precedence
* (like a map merge).
* @param locations the search locations
*/
public void setSearchLocations(String locations) {
Assert.hasLength(locations, "Locations must not be empty");
this.searchLocations = locations;
}
/**
* Sets the names of the files that should be loaded (excluding file extension) as a
* comma-separated list.
* @param names the names to load
*/
public void setSearchNames(String names) {
Assert.hasLength(names, "Names must not be empty");
this.names = names;
}
/**
* {@link BeanFactoryPostProcessor} to re-order our property sources below any
* {@code @PropertySource} items added by the {@link ConfigurationClassPostProcessor}.
*/
private static class PropertySourceOrderingPostProcessor implements BeanFactoryPostProcessor, Ordered {
private ConfigurableApplicationContext context;
PropertySourceOrderingPostProcessor(ConfigurableApplicationContext context) {
this.context = context;
}
@Override
public int getOrder() {
return Ordered.HIGHEST_PRECEDENCE;
}
@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
reorderSources(this.context.getEnvironment());
}
private void reorderSources(ConfigurableEnvironment environment) {
PropertySource defaultProperties = environment.getPropertySources().remove(DEFAULT_PROPERTIES);
if (defaultProperties != null) {
environment.getPropertySources().addLast(defaultProperties);
}
}
}
/**
* Loads candidate property sources and configures the active profiles.
*/
private class Loader {
private final Log logger = ConfigFileApplicationListener.this.logger;
private final ConfigurableEnvironment environment;
private final PropertySourcesPlaceholdersResolver placeholdersResolver;
private final ResourceLoader resourceLoader;
private final List propertySourceLoaders;
private Deque profiles;
private List processedProfiles;
private boolean activatedProfiles;
private Map loaded;
private Map> loadDocumentsCache = new HashMap<>();
Loader(ConfigurableEnvironment environment, ResourceLoader resourceLoader) {
this.environment = environment;
this.placeholdersResolver = new PropertySourcesPlaceholdersResolver(this.environment);
this.resourceLoader = (resourceLoader != null) ? resourceLoader : new DefaultResourceLoader(null);
this.propertySourceLoaders = SpringFactoriesLoader.loadFactories(PropertySourceLoader.class,
getClass().getClassLoader());
}
void load() {
FilteredPropertySource.apply(this.environment, DEFAULT_PROPERTIES, LOAD_FILTERED_PROPERTY,
(defaultProperties) -> {
this.profiles = new LinkedList<>();
this.processedProfiles = new LinkedList<>();
this.activatedProfiles = false;
this.loaded = new LinkedHashMap<>();
initializeProfiles();
while (!this.profiles.isEmpty()) {
Profile profile = this.profiles.poll();
if (isDefaultProfile(profile)) {
addProfileToEnvironment(profile.getName());
}
load(profile, this::getPositiveProfileFilter,
addToLoaded(MutablePropertySources::addLast, false));
this.processedProfiles.add(profile);
}
load(null, this::getNegativeProfileFilter, addToLoaded(MutablePropertySources::addFirst, true));
addLoadedPropertySources();
applyActiveProfiles(defaultProperties);
});
}
/**
* Initialize profile information from both the {@link Environment} active
* profiles and any {@code spring.profiles.active}/{@code spring.profiles.include}
* properties that are already set.
*/
private void initializeProfiles() {
// The default profile for these purposes is represented as null. We add it
// first so that it is processed first and has lowest priority.
this.profiles.add(null);
Binder binder = Binder.get(this.environment);
Set activatedViaProperty = getProfiles(binder, ACTIVE_PROFILES_PROPERTY);
Set includedViaProperty = getProfiles(binder, INCLUDE_PROFILES_PROPERTY);
List otherActiveProfiles = getOtherActiveProfiles(activatedViaProperty, includedViaProperty);
this.profiles.addAll(otherActiveProfiles);
// Any pre-existing active profiles set via property sources (e.g.
// System properties) take precedence over those added in config files.
this.profiles.addAll(includedViaProperty);
addActiveProfiles(activatedViaProperty);
if (this.profiles.size() == 1) { // only has null profile
for (String defaultProfileName : this.environment.getDefaultProfiles()) {
Profile defaultProfile = new Profile(defaultProfileName, true);
this.profiles.add(defaultProfile);
}
}
}
private List getOtherActiveProfiles(Set activatedViaProperty,
Set includedViaProperty) {
return Arrays.stream(this.environment.getActiveProfiles()).map(Profile::new).filter(
(profile) -> !activatedViaProperty.contains(profile) && !includedViaProperty.contains(profile))
.collect(Collectors.toList());
}
void addActiveProfiles(Set profiles) {
if (profiles.isEmpty()) {
return;
}
if (this.activatedProfiles) {
if (this.logger.isDebugEnabled()) {
this.logger.debug("Profiles already activated, '" + profiles + "' will not be applied");
}
return;
}
this.profiles.addAll(profiles);
if (this.logger.isDebugEnabled()) {
this.logger.debug("Activated activeProfiles " + StringUtils.collectionToCommaDelimitedString(profiles));
}
this.activatedProfiles = true;
removeUnprocessedDefaultProfiles();
}
private void removeUnprocessedDefaultProfiles() {
this.profiles.removeIf((profile) -> (profile != null && profile.isDefaultProfile()));
}
private DocumentFilter getPositiveProfileFilter(Profile profile) {
return (Document document) -> {
if (profile == null) {
return ObjectUtils.isEmpty(document.getProfiles());
}
return ObjectUtils.containsElement(document.getProfiles(), profile.getName())
&& this.environment.acceptsProfiles(Profiles.of(document.getProfiles()));
};
}
private DocumentFilter getNegativeProfileFilter(Profile profile) {
return (Document document) -> (profile == null && !ObjectUtils.isEmpty(document.getProfiles())
&& this.environment.acceptsProfiles(Profiles.of(document.getProfiles())));
}
private DocumentConsumer addToLoaded(BiConsumer> addMethod,
boolean checkForExisting) {
return (profile, document) -> {
if (checkForExisting) {
for (MutablePropertySources merged : this.loaded.values()) {
if (merged.contains(document.getPropertySource().getName())) {
return;
}
}
}
MutablePropertySources merged = this.loaded.computeIfAbsent(profile,
(k) -> new MutablePropertySources());
addMethod.accept(merged, document.getPropertySource());
};
}
private void load(Profile profile, DocumentFilterFactory filterFactory, DocumentConsumer consumer) {
getSearchLocations().forEach((location) -> {
boolean isDirectory = location.endsWith("/");
Set names = isDirectory ? getSearchNames() : NO_SEARCH_NAMES;
names.forEach((name) -> load(location, name, profile, filterFactory, consumer));
});
}
private void load(String location, String name, Profile profile, DocumentFilterFactory filterFactory,
DocumentConsumer consumer) {
if (!StringUtils.hasText(name)) {
for (PropertySourceLoader loader : this.propertySourceLoaders) {
if (canLoadFileExtension(loader, location)) {
load(loader, location, profile, filterFactory.getDocumentFilter(profile), consumer);
return;
}
}
throw new IllegalStateException("File extension of config file location '" + location
+ "' is not known to any PropertySourceLoader. If the location is meant to reference "
+ "a directory, it must end in '/'");
}
Set processed = new HashSet<>();
for (PropertySourceLoader loader : this.propertySourceLoaders) {
for (String fileExtension : loader.getFileExtensions()) {
if (processed.add(fileExtension)) {
loadForFileExtension(loader, location + name, "." + fileExtension, profile, filterFactory,
consumer);
}
}
}
}
private boolean canLoadFileExtension(PropertySourceLoader loader, String name) {
return Arrays.stream(loader.getFileExtensions())
.anyMatch((fileExtension) -> StringUtils.endsWithIgnoreCase(name, fileExtension));
}
private void loadForFileExtension(PropertySourceLoader loader, String prefix, String fileExtension,
Profile profile, DocumentFilterFactory filterFactory, DocumentConsumer consumer) {
DocumentFilter defaultFilter = filterFactory.getDocumentFilter(null);
DocumentFilter profileFilter = filterFactory.getDocumentFilter(profile);
if (profile != null) {
// Try profile-specific file & profile section in profile file (gh-340)
String profileSpecificFile = prefix + "-" + profile + fileExtension;
load(loader, profileSpecificFile, profile, defaultFilter, consumer);
load(loader, profileSpecificFile, profile, profileFilter, consumer);
// Try profile specific sections in files we've already processed
for (Profile processedProfile : this.processedProfiles) {
if (processedProfile != null) {
String previouslyLoaded = prefix + "-" + processedProfile + fileExtension;
load(loader, previouslyLoaded, profile, profileFilter, consumer);
}
}
}
// Also try the profile-specific section (if any) of the normal file
load(loader, prefix + fileExtension, profile, profileFilter, consumer);
}
private void load(PropertySourceLoader loader, String location, Profile profile, DocumentFilter filter,
DocumentConsumer consumer) {
Resource[] resources = getResources(location);
for (Resource resource : resources) {
try {
if (resource == null || !resource.exists()) {
if (this.logger.isTraceEnabled()) {
StringBuilder description = getDescription("Skipped missing config ", location, resource,
profile);
this.logger.trace(description);
}
continue;
}
if (!StringUtils.hasText(StringUtils.getFilenameExtension(resource.getFilename()))) {
if (this.logger.isTraceEnabled()) {
StringBuilder description = getDescription("Skipped empty config extension ", location,
resource, profile);
this.logger.trace(description);
}
continue;
}
String name = "applicationConfig: [" + getLocationName(location, resource) + "]";
List documents = loadDocuments(loader, name, resource);
if (CollectionUtils.isEmpty(documents)) {
if (this.logger.isTraceEnabled()) {
StringBuilder description = getDescription("Skipped unloaded config ", location, resource,
profile);
this.logger.trace(description);
}
continue;
}
List loaded = new ArrayList<>();
for (Document document : documents) {
if (filter.match(document)) {
addActiveProfiles(document.getActiveProfiles());
addIncludedProfiles(document.getIncludeProfiles());
loaded.add(document);
}
}
Collections.reverse(loaded);
if (!loaded.isEmpty()) {
loaded.forEach((document) -> consumer.accept(profile, document));
if (this.logger.isDebugEnabled()) {
StringBuilder description = getDescription("Loaded config file ", location, resource,
profile);
this.logger.debug(description);
}
}
}
catch (Exception ex) {
StringBuilder description = getDescription("Failed to load property source from ", location,
resource, profile);
throw new IllegalStateException(description.toString(), ex);
}
}
}
private String getLocationName(String location, Resource resource) {
if (!location.contains("*")) {
return location;
}
if (resource instanceof FileSystemResource) {
return ((FileSystemResource) resource).getPath();
}
return resource.getDescription();
}
private Resource[] getResources(String location) {
try {
if (location.contains("*")) {
return getResourcesFromPatternLocation(location);
}
return new Resource[] { this.resourceLoader.getResource(location) };
}
catch (Exception ex) {
return EMPTY_RESOURCES;
}
}
private Resource[] getResourcesFromPatternLocation(String location) throws IOException {
String directoryPath = location.substring(0, location.indexOf("*/"));
Resource resource = this.resourceLoader.getResource(directoryPath);
File[] files = resource.getFile().listFiles(File::isDirectory);
if (files != null) {
String fileName = location.substring(location.lastIndexOf("/") + 1);
Arrays.sort(files, FILE_COMPARATOR);
return Arrays.stream(files).map((file) -> file.listFiles((dir, name) -> name.equals(fileName)))
.filter(Objects::nonNull).flatMap((Function>) Arrays::stream)
.map(FileSystemResource::new).toArray(Resource[]::new);
}
return EMPTY_RESOURCES;
}
private void addIncludedProfiles(Set includeProfiles) {
LinkedList existingProfiles = new LinkedList<>(this.profiles);
this.profiles.clear();
this.profiles.addAll(includeProfiles);
this.profiles.removeAll(this.processedProfiles);
this.profiles.addAll(existingProfiles);
}
private List loadDocuments(PropertySourceLoader loader, String name, Resource resource)
throws IOException {
DocumentsCacheKey cacheKey = new DocumentsCacheKey(loader, resource);
List documents = this.loadDocumentsCache.get(cacheKey);
if (documents == null) {
List> loaded = loader.load(name, resource);
documents = asDocuments(loaded);
this.loadDocumentsCache.put(cacheKey, documents);
}
return documents;
}
private List asDocuments(List> loaded) {
if (loaded == null) {
return Collections.emptyList();
}
return loaded.stream().map((propertySource) -> {
Binder binder = new Binder(ConfigurationPropertySources.from(propertySource),
this.placeholdersResolver);
String[] profiles = binder.bind("spring.profiles", STRING_ARRAY).orElse(null);
Set activeProfiles = getProfiles(binder, ACTIVE_PROFILES_PROPERTY);
Set includeProfiles = getProfiles(binder, INCLUDE_PROFILES_PROPERTY);
return new Document(propertySource, profiles, activeProfiles, includeProfiles);
}).collect(Collectors.toList());
}
private StringBuilder getDescription(String prefix, String location, Resource resource, Profile profile) {
StringBuilder result = new StringBuilder(prefix);
try {
if (resource != null) {
String uri = resource.getURI().toASCIIString();
result.append("'");
result.append(uri);
result.append("' (");
result.append(location);
result.append(")");
}
}
catch (IOException ex) {
result.append(location);
}
if (profile != null) {
result.append(" for profile ");
result.append(profile);
}
return result;
}
private Set getProfiles(Binder binder, String name) {
return binder.bind(name, STRING_ARRAY).map(this::asProfileSet).orElse(Collections.emptySet());
}
private Set asProfileSet(String[] profileNames) {
List profiles = new ArrayList<>();
for (String profileName : profileNames) {
profiles.add(new Profile(profileName));
}
return new LinkedHashSet<>(profiles);
}
private void addProfileToEnvironment(String profile) {
for (String activeProfile : this.environment.getActiveProfiles()) {
if (activeProfile.equals(profile)) {
return;
}
}
this.environment.addActiveProfile(profile);
}
private Set getSearchLocations() {
Set locations = getSearchLocations(CONFIG_ADDITIONAL_LOCATION_PROPERTY);
if (this.environment.containsProperty(CONFIG_LOCATION_PROPERTY)) {
locations.addAll(getSearchLocations(CONFIG_LOCATION_PROPERTY));
}
else {
locations.addAll(
asResolvedSet(ConfigFileApplicationListener.this.searchLocations, DEFAULT_SEARCH_LOCATIONS));
}
return locations;
}
private Set getSearchLocations(String propertyName) {
Set locations = new LinkedHashSet<>();
if (this.environment.containsProperty(propertyName)) {
for (String path : asResolvedSet(this.environment.getProperty(propertyName), null)) {
if (!path.contains("$")) {
path = StringUtils.cleanPath(path);
Assert.state(!path.startsWith(ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX),
"Classpath wildcard patterns cannot be used as a search location");
validateWildcardLocation(path);
if (!ResourceUtils.isUrl(path)) {
path = ResourceUtils.FILE_URL_PREFIX + path;
}
}
locations.add(path);
}
}
return locations;
}
private void validateWildcardLocation(String path) {
if (path.contains("*")) {
Assert.state(StringUtils.countOccurrencesOf(path, "*") == 1,
() -> "Search location '" + path + "' cannot contain multiple wildcards");
String directoryPath = path.substring(0, path.lastIndexOf("/") + 1);
Assert.state(directoryPath.endsWith("*/"), () -> "Search location '" + path + "' must end with '*/'");
}
}
private Set getSearchNames() {
if (this.environment.containsProperty(CONFIG_NAME_PROPERTY)) {
String property = this.environment.getProperty(CONFIG_NAME_PROPERTY);
Set names = asResolvedSet(property, null);
names.forEach(this::assertValidConfigName);
return names;
}
return asResolvedSet(ConfigFileApplicationListener.this.names, DEFAULT_NAMES);
}
private Set asResolvedSet(String value, String fallback) {
List list = Arrays.asList(StringUtils.trimArrayElements(StringUtils.commaDelimitedListToStringArray(
(value != null) ? this.environment.resolvePlaceholders(value) : fallback)));
Collections.reverse(list);
return new LinkedHashSet<>(list);
}
private void assertValidConfigName(String name) {
Assert.state(!name.contains("*"), () -> "Config name '" + name + "' cannot contain wildcards");
}
private void addLoadedPropertySources() {
MutablePropertySources destination = this.environment.getPropertySources();
List loaded = new ArrayList<>(this.loaded.values());
Collections.reverse(loaded);
String lastAdded = null;
Set added = new HashSet<>();
for (MutablePropertySources sources : loaded) {
for (PropertySource source : sources) {
if (added.add(source.getName())) {
addLoadedPropertySource(destination, lastAdded, source);
lastAdded = source.getName();
}
}
}
}
private void addLoadedPropertySource(MutablePropertySources destination, String lastAdded,
PropertySource source) {
if (lastAdded == null) {
if (destination.contains(DEFAULT_PROPERTIES)) {
destination.addBefore(DEFAULT_PROPERTIES, source);
}
else {
destination.addLast(source);
}
}
else {
destination.addAfter(lastAdded, source);
}
}
private void applyActiveProfiles(PropertySource defaultProperties) {
List activeProfiles = new ArrayList<>();
if (defaultProperties != null) {
Binder binder = new Binder(ConfigurationPropertySources.from(defaultProperties),
new PropertySourcesPlaceholdersResolver(this.environment));
activeProfiles.addAll(getDefaultProfiles(binder, "spring.profiles.include"));
if (!this.activatedProfiles) {
activeProfiles.addAll(getDefaultProfiles(binder, "spring.profiles.active"));
}
}
this.processedProfiles.stream().filter(this::isDefaultProfile).map(Profile::getName)
.forEach(activeProfiles::add);
this.environment.setActiveProfiles(activeProfiles.toArray(new String[0]));
}
private boolean isDefaultProfile(Profile profile) {
return profile != null && !profile.isDefaultProfile();
}
private List getDefaultProfiles(Binder binder, String property) {
return binder.bind(property, STRING_LIST).orElse(Collections.emptyList());
}
}
/**
* A Spring Profile that can be loaded.
*/
private static class Profile {
private final String name;
private final boolean defaultProfile;
Profile(String name) {
this(name, false);
}
Profile(String name, boolean defaultProfile) {
Assert.notNull(name, "Name must not be null");
this.name = name;
this.defaultProfile = defaultProfile;
}
String getName() {
return this.name;
}
boolean isDefaultProfile() {
return this.defaultProfile;
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj == null || obj.getClass() != getClass()) {
return false;
}
return ((Profile) obj).name.equals(this.name);
}
@Override
public int hashCode() {
return this.name.hashCode();
}
@Override
public String toString() {
return this.name;
}
}
/**
* Cache key used to save loading the same document multiple times.
*/
private static class DocumentsCacheKey {
private final PropertySourceLoader loader;
private final Resource resource;
DocumentsCacheKey(PropertySourceLoader loader, Resource resource) {
this.loader = loader;
this.resource = resource;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
DocumentsCacheKey other = (DocumentsCacheKey) obj;
return this.loader.equals(other.loader) && this.resource.equals(other.resource);
}
@Override
public int hashCode() {
return this.loader.hashCode() * 31 + this.resource.hashCode();
}
}
/**
* A single document loaded by a {@link PropertySourceLoader}.
*/
private static class Document {
private final PropertySource propertySource;
private String[] profiles;
private final Set activeProfiles;
private final Set includeProfiles;
Document(PropertySource propertySource, String[] profiles, Set activeProfiles,
Set includeProfiles) {
this.propertySource = propertySource;
this.profiles = profiles;
this.activeProfiles = activeProfiles;
this.includeProfiles = includeProfiles;
}
PropertySource getPropertySource() {
return this.propertySource;
}
String[] getProfiles() {
return this.profiles;
}
Set getActiveProfiles() {
return this.activeProfiles;
}
Set getIncludeProfiles() {
return this.includeProfiles;
}
@Override
public String toString() {
return this.propertySource.toString();
}
}
/**
* Factory used to create a {@link DocumentFilter}.
*/
@FunctionalInterface
private interface DocumentFilterFactory {
/**
* Create a filter for the given profile.
* @param profile the profile or {@code null}
* @return the filter
*/
DocumentFilter getDocumentFilter(Profile profile);
}
/**
* Filter used to restrict when a {@link Document} is loaded.
*/
@FunctionalInterface
private interface DocumentFilter {
boolean match(Document document);
}
/**
* Consumer used to handle a loaded {@link Document}.
*/
@FunctionalInterface
private interface DocumentConsumer {
void accept(Profile profile, Document document);
}
}