public class DefaultPackageScanClassResolver extends Object implements PackageScanClassResolver
PackageScanClassResolver| Constructor and Description |
|---|
DefaultPackageScanClassResolver() |
| Modifier and Type | Method and Description |
|---|---|
void |
addClassLoader(ClassLoader classLoader)
Adds the class loader to the existing loaders
|
void |
addFilter(PackageScanFilter filter)
Add a filter that will be applied to all scan operations
|
protected void |
addFoundClass(Class<?> type) |
protected void |
addFoundClass(String packageName,
Class<?> type) |
protected void |
addIfMatching(PackageScanFilter test,
String fqn,
Set<Class<?>> classes)
Add the class designated by the fully qualified class name provided to
the set of resolved classes if and only if it is approved by the Test
supplied.
|
protected URL |
customResourceLocator(URL url) |
protected void |
find(PackageScanFilter test,
String packageName,
Set<Class<?>> classes) |
protected void |
findAllClasses(String packageName,
ClassLoader loader) |
Set<Class<?>> |
findByFilter(PackageScanFilter filter,
String... packageNames)
Attempts to discover classes filter by the provided filter
|
Set<Class<?>> |
findImplementations(Class parent,
String... packageNames)
Attempts to discover classes that are assignable to the type provided.
|
protected void |
findInAllClasses(PackageScanFilter test,
String packageName,
Set<Class<?>> classes) |
Set<ClassLoader> |
getClassLoaders()
Gets the ClassLoader instances that should be used when scanning for classes.
|
protected Set<Class> |
getFoundClasses(String packageName) |
protected Enumeration<URL> |
getResources(ClassLoader loader,
String packageName)
Strategy to get the resources by the given classloader.
|
protected void |
loadImplementationsInJar(String parentPackage,
InputStream parentFileStream,
ClassLoader loader,
String parentFileName,
String grandparentFileName)
Finds matching classes within a jar files that contains a folder
structure matching the package structure.
|
void |
removeFilter(PackageScanFilter filter)
Removes the filter
|
void |
setClassLoaders(Set<ClassLoader> classLoaders)
Sets the ClassLoader instances that should be used when scanning for
classes.
|
protected final transient Logger log
public void addClassLoader(ClassLoader classLoader)
PackageScanClassResolveraddClassLoader in interface PackageScanClassResolverclassLoader - the loader to addpublic void addFilter(PackageScanFilter filter)
PackageScanClassResolveraddFilter in interface PackageScanClassResolverfilter - filter to filter desired classes in all scan operationspublic void removeFilter(PackageScanFilter filter)
PackageScanClassResolverremoveFilter in interface PackageScanClassResolverfilter - filter to filter desired classes in all scan operationspublic Set<ClassLoader> getClassLoaders()
PackageScanClassResolvergetClassLoaders in interface PackageScanClassResolverpublic void setClassLoaders(Set<ClassLoader> classLoaders)
PackageScanClassResolversetClassLoaders in interface PackageScanClassResolverclassLoaders - loaders to use when scanning for classespublic Set<Class<?>> findImplementations(Class parent, String... packageNames)
PackageScanClassResolverfindImplementations in interface PackageScanClassResolverparent - the class of interface to find subclasses or implementations ofpackageNames - one or more package names to scan (including subpackages) for classespublic Set<Class<?>> findByFilter(PackageScanFilter filter, String... packageNames)
PackageScanClassResolverfindByFilter in interface PackageScanClassResolverfilter - filter to filter desired classes.packageNames - one or more package names to scan (including subpackages) for classesprotected void find(PackageScanFilter test, String packageName, Set<Class<?>> classes)
protected void findAllClasses(String packageName, ClassLoader loader)
protected void findInAllClasses(PackageScanFilter test, String packageName, Set<Class<?>> classes)
protected void addFoundClass(Class<?> type)
protected URL customResourceLocator(URL url) throws IOException
IOExceptionprotected Enumeration<URL> getResources(ClassLoader loader, String packageName) throws IOException
WebSpherePackageScanClassResolver
to take care of WebSphere's odditiy of resource loading.loader - the classloaderpackageName - the packagename for the package to loadIOException - is thrown by the classloaderprotected void loadImplementationsInJar(String parentPackage, InputStream parentFileStream, ClassLoader loader, String parentFileName, String grandparentFileName) throws IOException
parentPackage - the parent package under which classes must be in order to
be consideredparentFileStream - the inputstream of the jar file to be examined for classesloader - a classloader which can load classes contained within the JAR fileparentFileName - a unique name for the parentFileStream, to be used for caching.
This is the URL of the parentFileStream, if it comes from a URL,
or a composite ID if we are currently examining a nested JAR.IOExceptionprotected void addIfMatching(PackageScanFilter test, String fqn, Set<Class<?>> classes)
test - the test used to determine if the class matchesfqn - the fully qualified name of a classCopyright © 2018 Liquibase.org. All rights reserved.