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Improve MappingRegistry tests and polish

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Issue: SPR-11541
This commit is contained in:
Rossen Stoyanchev
2015-05-05 10:49:01 -04:00
parent 16b189cc1a
commit 4a8baebf59
2 changed files with 150 additions and 72 deletions
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77
spring-webmvc/src/main/java/org/springframework/web/servlet/handler/AbstractHandlerMethodMapping.java
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@@ -148,6 +148,13 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
return this.mappingRegistry.getHandlerMethodsByMappingName(mappingName);
}
/**
* Return the internal mapping registry. Provided for testing purposes.
*/
MappingRegistry getMappingRegistry() {
return this.mappingRegistry;
}
/**
* Detects handler methods at initialization.
@@ -341,7 +348,7 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
*/
protected HandlerMethod lookupHandlerMethod(String lookupPath, HttpServletRequest request) throws Exception {
List<Match> matches = new ArrayList<Match>();
List<T> directPathMatches = this.mappingRegistry.getMappingKeysByUrl(lookupPath);
List<T> directPathMatches = this.mappingRegistry.getMappingsByUrl(lookupPath);
if (directPathMatches != null) {
addMatchingMappings(directPathMatches, matches, request);
}
@@ -382,7 +389,7 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
for (T mapping : mappings) {
T match = getMatchingMapping(mapping, request);
if (match != null) {
matches.add(new Match(match, this.mappingRegistry.getHandlerMethod(mapping)));
matches.add(new Match(match, this.mappingRegistry.getMappings().get(mapping)));
}
}
}
@@ -443,17 +450,23 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
}
private class MappingRegistry {
/**
* A registry that maintains all mappings to handler methods, exposing methods
* to perform lookups and providing concurrent access.
*
* <p>Package-private for testing purposes.
*/
class MappingRegistry {
private final Map<T, MappingRegistration<T>> registry = new HashMap<T, MappingRegistration<T>>();
private final Map<T, HandlerMethod> mappingLookup = new LinkedHashMap<T, HandlerMethod>();
private final MultiValueMap<String, T> urlLookup = new LinkedMultiValueMap<String, T>();
private final Map<String, List<HandlerMethod>> mappingNameLookup =
private final Map<String, List<HandlerMethod>> nameLookup =
new ConcurrentHashMap<String, List<HandlerMethod>>();
private final Map<T, MappingDefinition<T>> definitionMap = new HashMap<T, MappingDefinition<T>>();
private final Map<Method, CorsConfiguration> corsLookup =
new ConcurrentHashMap<Method, CorsConfiguration>();
@@ -473,23 +486,15 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
* Return matches for the given URL path. Not thread-safe.
* @see #acquireReadLock()
*/
public List<T> getMappingKeysByUrl(String urlPath) {
public List<T> getMappingsByUrl(String urlPath) {
return this.urlLookup.get(urlPath);
}
/**
* Return the handler method for the mapping key. Not thread-safe.
* @see #acquireReadLock()
*/
public HandlerMethod getHandlerMethod(T mapping) {
return this.mappingLookup.get(mapping);
}
/**
* Return handler methods by mapping name. Thread-safe for concurrent use.
*/
public List<HandlerMethod> getHandlerMethodsByMappingName(String mappingName) {
return this.mappingNameLookup.get(mappingName);
return this.nameLookup.get(mappingName);
}
/**
@@ -501,14 +506,14 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
}
/**
* Acquire the read lock when using getMappings and getMappingKeysByUrl.
* Acquire the read lock when using getMappings and getMappingsByUrl.
*/
public void acquireReadLock() {
this.readWriteLock.readLock().lock();
}
/**
* Release the read lock after using getMappings and getMappingKeysByUrl.
* Release the read lock after using getMappings and getMappingsByUrl.
*/
public void releaseReadLock() {
this.readWriteLock.readLock().unlock();
@@ -543,8 +548,8 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
this.corsLookup.put(method, corsConfig);
}
this.definitionMap.put(mapping,
new MappingDefinition<T>(mapping, handlerMethod, directUrls, name, corsConfig));
this.registry.put(mapping,
new MappingRegistration<T>(mapping, handlerMethod, directUrls, name, corsConfig));
}
finally {
this.readWriteLock.writeLock().unlock();
@@ -573,8 +578,8 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
private void addMappingName(String name, HandlerMethod handlerMethod) {
List<HandlerMethod> oldList = this.mappingNameLookup.containsKey(name) ?
this.mappingNameLookup.get(name) : Collections.<HandlerMethod>emptyList();
List<HandlerMethod> oldList = this.nameLookup.containsKey(name) ?
this.nameLookup.get(name) : Collections.<HandlerMethod>emptyList();
for (HandlerMethod current : oldList) {
if (handlerMethod.getMethod().equals(current.getMethod())) {
@@ -589,7 +594,7 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
List<HandlerMethod> newList = new ArrayList<HandlerMethod>(oldList.size() + 1);
newList.addAll(oldList);
newList.add(handlerMethod);
this.mappingNameLookup.put(name, newList);
this.nameLookup.put(name, newList);
if (newList.size() > 1) {
if (logger.isDebugEnabled()) {
@@ -602,7 +607,7 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
public void unregister(T mapping) {
this.readWriteLock.writeLock().lock();
try {
MappingDefinition<T> definition = this.definitionMap.remove(mapping);
MappingRegistration<T> definition = this.registry.remove(mapping);
if (definition == null) {
return;
}
@@ -628,18 +633,18 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
}
}
private void removeMappingName(MappingDefinition<T> definition) {
String name = definition.getName();
private void removeMappingName(MappingRegistration<T> definition) {
String name = definition.getMappingName();
if (name == null) {
return;
}
HandlerMethod handlerMethod = definition.getHandlerMethod();
List<HandlerMethod> oldList = this.mappingNameLookup.get(name);
List<HandlerMethod> oldList = this.nameLookup.get(name);
if (oldList == null) {
return;
}
if (oldList.size() <= 1) {
this.mappingNameLookup.remove(name);
this.nameLookup.remove(name);
return;
}
List<HandlerMethod> newList = new ArrayList<HandlerMethod>(oldList.size() - 1);
@@ -648,12 +653,12 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
newList.add(current);
}
}
this.mappingNameLookup.put(name, newList);
this.nameLookup.put(name, newList);
}
}
private static class MappingDefinition<T> {
private static class MappingRegistration<T> {
private final T mapping;
@@ -661,13 +666,13 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
private final List<String> directUrls;
private final String name;
private final String mappingName;
private final CorsConfiguration corsConfiguration;
public MappingDefinition(T mapping, HandlerMethod handlerMethod, List<String> directUrls,
String name, CorsConfiguration corsConfiguration) {
public MappingRegistration(T mapping, HandlerMethod handlerMethod, List<String> directUrls,
String mappingName, CorsConfiguration corsConfiguration) {
Assert.notNull(mapping);
Assert.notNull(handlerMethod);
@@ -675,7 +680,7 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
this.mapping = mapping;
this.handlerMethod = handlerMethod;
this.directUrls = (directUrls != null ? directUrls : Collections.<String>emptyList());
this.name = name;
this.mappingName = mappingName;
this.corsConfiguration = corsConfiguration;
}
@@ -692,8 +697,8 @@ public abstract class AbstractHandlerMethodMapping<T> extends AbstractHandlerMap
return this.directUrls;
}
public String getName() {
return this.name;
public String getMappingName() {
return this.mappingName;
}
public CorsConfiguration getCorsConfiguration() {