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Extensions.findExtension()

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This commit is contained in:
Dmitry Jemerov
2010-09-22 16:22:47 +04:00
parent 551a526c07
commit 46a15cb52d
1 changed files with 10 additions and 0 deletions
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platform/extensions/src/com/intellij/openapi/extensions/Extensions.java
+10
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@@ -99,6 +99,16 @@ public class Extensions {
return extensionPoint.getExtensions();
}
public static <T, U extends T> U findExtension(ExtensionPointName<T> extensionPointName, Class<U> extClass) {
for (T t : getExtensions(extensionPointName)) {
if (extClass.isInstance(t)) {
//noinspection unchecked
return (U) t;
}
}
throw new IllegalArgumentException("could not find extension implementation " + extClass);
}
public static void instantiateArea(@NonNls @NotNull String areaClass, AreaInstance areaInstance, AreaInstance parentAreaInstance) {
if (!ourAreaClass2Configuration.containsKey(areaClass)) {
throw new IllegalArgumentException("Area class is not registered: " + areaClass);