Initial commit

Bug-AGL: SPEC-4033
Signed-off-by: Kenji Hosokawa <khosokawa@jp.adit-jv.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/rba.tool.editor/src/rba/tool/editor/util/ExtensionModuleManager.java b/rba.tool.editor/src/rba/tool/editor/util/ExtensionModuleManager.java
new file mode 100644
index 0000000..966acf0
--- /dev/null
+++ b/rba.tool.editor/src/rba/tool/editor/util/ExtensionModuleManager.java
@@ -0,0 +1,63 @@
+package rba.tool.editor.util;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.core.runtime.IExtension;
+import org.eclipse.core.runtime.IExtensionPoint;
+import org.eclipse.core.runtime.IExtensionRegistry;
+import org.eclipse.core.runtime.Platform;
+
+import com.google.inject.Module;
+
+public class ExtensionModuleManager {
+    public static final ExtensionModuleManager INSTANCE = new ExtensionModuleManager();
+
+    private static final String EXTENSION_POINT = "rba.tool.editor.rbaToolEditorExtensionModule"; //$NON-NLS-1$
+
+    private static final String EXTENSION_POINT_ELEMENT = "extensionModule"; //$NON-NLS-1$
+
+    private static final String EXTENSION_POINT_ELEMENT_ATTRIBUTE = "class"; //$NON-NLS-1$
+
+    private List<Module> constraintProviders;
+
+    private ExtensionModuleManager() {
+    }
+
+    public List<Module> getExtensionModules() {
+        if (constraintProviders == null) {
+            constraintProviders = new ArrayList<Module>();
+            init();
+        }
+        return constraintProviders;
+    }
+
+    private void init() {
+        IExtensionRegistry registry = Platform.getExtensionRegistry();
+        IExtensionPoint extensionPoint = registry.getExtensionPoint(EXTENSION_POINT); // $NON-NLS-1$
+        IExtension[] extensions = extensionPoint.getExtensions();
+
+        List<Module> providerList = new ArrayList<Module>();
+        for (int i = 0; i < extensions.length; i++) {
+            IConfigurationElement[] elements = extensions[i].getConfigurationElements();
+            for (int j = 0; j < elements.length; j++) {
+                IConfigurationElement element = elements[j];
+                String elementName = element.getName();
+                if (elementName.equalsIgnoreCase(EXTENSION_POINT_ELEMENT)) { // $NON-NLS-1$
+                    try {
+                        Object provider = element.createExecutableExtension(EXTENSION_POINT_ELEMENT_ATTRIBUTE); // $NON-NLS-1$
+                        if (provider instanceof Module) {
+                            Module factory = (Module) provider;
+                            providerList.add(factory);
+                        }
+                    } catch (CoreException e) {
+                        // do nothing
+                    }
+                }
+            }
+        }
+        constraintProviders.addAll(providerList);
+    }
+}