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Added support to search extension by extension point id + extension id. Enhance search of "class" attribute.

This commit is contained in:
Heng Sin Low 2010-10-26 19:07:40 +08:00
parent 836c789066
commit 9a3b1f3a4c
1 changed files with 24 additions and 7 deletions
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31
org.adempiere.base/src/org/adempiere/base/equinox/ExtensionList.java
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@ -30,9 +30,9 @@ import org.eclipse.core.runtime.Platform;
* This List looks up services as extensions in equinox.
* The extension point must be the class name of the service interface.
* The query attributes are checked against the attributes
* of the extension configuration element.
*
* In order to minimize equinox lookups, a filtering iterator is used.
* of the extension configuration element.
*
* In order to minimize equinox lookups, a filtering iterator is used.
* @author viola
*
* @param <T> The service this list holds implementations of.
@ -59,9 +59,15 @@ public class ExtensionList<T> implements Iterable<T>{
private boolean accept(IConfigurationElement element) {
for (String name : filters.keySet()) {
String expected = filters.get(name);
String actual = element.getAttribute(name);
if (!expected.equals(actual))
return false;
if (name.equals("Extension.ID")) {
String id = element.getDeclaringExtension().getUniqueIdentifier();
if (!expected.equals(id))
return false;
} else {
String actual = element.getAttribute(name);
if (!expected.equals(actual))
return false;
}
}
return true;
}
@ -70,6 +76,17 @@ public class ExtensionList<T> implements Iterable<T>{
public T next() {
iterateUntilAccepted();
IConfigurationElement e = elements[index++];
if (e.getAttribute("class") == null) {
IConfigurationElement[] childs = e.getChildren();
if (childs != null && childs.length > 0) {
for(IConfigurationElement child : childs) {
if (child.getAttribute("class") != null) {
e = child;
break;
}
}
}
}
try {
return (T) e.createExecutableExtension("class");
} catch (CoreException ex) {
@ -93,7 +110,7 @@ public class ExtensionList<T> implements Iterable<T>{
System.out.println(ex.getMessage());
}
}
public ExtensionList(Class<T> type, String extensionPointId, ServiceQuery query) {
this(type, extensionPointId);
for (String key : query.keySet()) {