feat: provide a base class for LSP command action

Signed-off-by: azerr <[email protected]>

src/main/java/com/redhat/devtools/lsp4ij/commands/LSPCommandAction.java

@@ -0,0 +1,53 @@
+/*******************************************************************************
+ * Copyright (c) 2023 Red Hat, Inc.
+ * Distributed under license by Red Hat, Inc. All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution,
+ * and is available at https://www.eclipse.org/legal/epl-v20.html
+ *
+ * Contributors:
+ * Red Hat, Inc. - initial API and implementation
+ ******************************************************************************/
+package com.redhat.devtools.lsp4ij.commands;
+
+import com.intellij.openapi.actionSystem.AnAction;
+import com.intellij.openapi.actionSystem.AnActionEvent;
+import org.eclipse.lsp4j.Command;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.net.URI;
+
+/**
+ * Abstract IJ {@link AnAction} class to execute an LSP {@link Command}.
+ */
+public abstract class LSPCommandAction extends AnAction {
+
+    @Override
+    public final void actionPerformed(@NotNull AnActionEvent e) {
+        Command command = e.getData(CommandExecutor.LSP_COMMAND);
+        if (command == null) {
+            return;
+        }
+        commandPerformed(command, e);
+    }
+
+    /**
+     * Returns the document URI which performs the action and null otherwise.
+     *
+     * @param e the action event.
+     *
+     * @return the document URI which performs the action and null otherwise.
+     */
+    protected @Nullable URI getDocumentUri(@NotNull AnActionEvent e) {
+        return e.getData(CommandExecutor.LSP_COMMAND_DOCUMENT_URI);
+    }
+
+    /**
+     * Performs the LSP command logic.
+     *
+     * @param command the LSP command.
+     * @param e the action event.
+     */
+    protected abstract void commandPerformed(@NotNull Command command, @NotNull AnActionEvent e);
+}