Add a wrapper to simplify programmatic call on commands

git-svn-id: https://svn.argeo.org/commons/trunk@4719 4cfe0d0a-d680-48aa-b62c-e0a02a3f76cc

diff --git a/eclipse/runtime/org.argeo.eclipse.ui/src/main/java/org/argeo/eclipse/ui/utils/CommandUtils.java b/eclipse/runtime/org.argeo.eclipse.ui/src/main/java/org/argeo/eclipse/ui/utils/CommandUtils.java
new file mode 100644 (file)
index 0000000..df519e0
--- /dev/null
+++ b/eclipse/runtime/org.argeo.eclipse.ui/src/main/java/org/argeo/eclipse/ui/utils/CommandUtils.java
@@ -0,0 +1,63 @@
+package org.argeo.eclipse.ui.utils;
+
+import java.util.ArrayList;
+
+import org.argeo.ArgeoException;
+import org.argeo.eclipse.ui.ArgeoUiPlugin;
+import org.eclipse.core.commands.Command;
+import org.eclipse.core.commands.IParameter;
+import org.eclipse.core.commands.Parameterization;
+import org.eclipse.core.commands.ParameterizedCommand;
+import org.eclipse.ui.IWorkbench;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.commands.ICommandService;
+import org.eclipse.ui.handlers.IHandlerService;
+
+/**
+ * Centralizes useful and generic methods concerning eclipse commands.
+ * 
+ */
+public class CommandUtils {
+
+       /**
+        * Factorizes command call that is quite verbose and always the same
+        * 
+        * NOTE that none of the parameter can be null
+        */
+       public static void CallCommandWithOneParameter(String commandId,
+                       String paramId, String paramValue) {
+               try {
+                       IWorkbench iw = ArgeoUiPlugin.getDefault().getWorkbench();
+
+                       IHandlerService handlerService = (IHandlerService) iw
+                                       .getService(IHandlerService.class);
+
+                       // get the command from plugin.xml
+                       IWorkbenchWindow window = iw.getActiveWorkbenchWindow();
+                       ICommandService cmdService = (ICommandService) window
+                                       .getService(ICommandService.class);
+
+                       Command cmd = cmdService.getCommand(commandId);
+
+                       ArrayList<Parameterization> parameters = new ArrayList<Parameterization>();
+
+                       // get the parameter
+                       IParameter iparam = cmd.getParameter(paramId);
+
+                       Parameterization params = new Parameterization(iparam, paramValue);
+                       parameters.add(params);
+
+                       // build the parameterized command
+                       ParameterizedCommand pc = new ParameterizedCommand(cmd,
+                                       parameters.toArray(new Parameterization[parameters.size()]));
+
+                       // execute the command
+                       handlerService = (IHandlerService) window
+                                       .getService(IHandlerService.class);
+                       handlerService.executeCommand(pc, null);
+               } catch (Exception e) {
+                       throw new ArgeoException("Error while calling command of id :"
+                                       + commandId, e);
+               }
+       }
+}