package org.junit.runner; | |
import org.junit.internal.Classes; | |
import org.junit.runner.FilterFactory.FilterNotCreatedException; | |
import org.junit.runner.manipulation.Filter; | |
/** | |
* Utility class whose methods create a {@link FilterFactory}. | |
*/ | |
class FilterFactories { | |
/** | |
* Creates a {@link Filter}. | |
* | |
* A filter specification is of the form "package.of.FilterFactory=args-to-filter-factory" or | |
* "package.of.FilterFactory". | |
* | |
* @param request the request that will be filtered | |
* @param filterSpec the filter specification | |
* @throws org.junit.runner.FilterFactory.FilterNotCreatedException | |
*/ | |
public static Filter createFilterFromFilterSpec(Request request, String filterSpec) | |
throws FilterFactory.FilterNotCreatedException { | |
Description topLevelDescription = request.getRunner().getDescription(); | |
String[] tuple; | |
if (filterSpec.contains("=")) { | |
tuple = filterSpec.split("=", 2); | |
} else { | |
tuple = new String[]{ filterSpec, "" }; | |
} | |
return createFilter(tuple[0], new FilterFactoryParams(topLevelDescription, tuple[1])); | |
} | |
/** | |
* Creates a {@link Filter}. | |
* | |
* @param filterFactoryFqcn The fully qualified class name of the {@link FilterFactory} | |
* @param params The arguments to the {@link FilterFactory} | |
*/ | |
public static Filter createFilter(String filterFactoryFqcn, FilterFactoryParams params) | |
throws FilterFactory.FilterNotCreatedException { | |
FilterFactory filterFactory = createFilterFactory(filterFactoryFqcn); | |
return filterFactory.createFilter(params); | |
} | |
/** | |
* Creates a {@link Filter}. | |
* | |
* @param filterFactoryClass The class of the {@link FilterFactory} | |
* @param params The arguments to the {@link FilterFactory} | |
* | |
*/ | |
public static Filter createFilter(Class<? extends FilterFactory> filterFactoryClass, FilterFactoryParams params) | |
throws FilterFactory.FilterNotCreatedException { | |
FilterFactory filterFactory = createFilterFactory(filterFactoryClass); | |
return filterFactory.createFilter(params); | |
} | |
static FilterFactory createFilterFactory(String filterFactoryFqcn) throws FilterNotCreatedException { | |
Class<? extends FilterFactory> filterFactoryClass; | |
try { | |
filterFactoryClass = Classes.getClass(filterFactoryFqcn).asSubclass(FilterFactory.class); | |
} catch (Exception e) { | |
throw new FilterNotCreatedException(e); | |
} | |
return createFilterFactory(filterFactoryClass); | |
} | |
static FilterFactory createFilterFactory(Class<? extends FilterFactory> filterFactoryClass) | |
throws FilterNotCreatedException { | |
try { | |
return filterFactoryClass.getConstructor().newInstance(); | |
} catch (Exception e) { | |
throw new FilterNotCreatedException(e); | |
} | |
} | |
} |