Support newer Jakarta Faces API versions: 3.0, 4.0, 4.1 (eclipse-jsf#8)

code review: improve API compatibility

jsf/plugins/org.eclipse.jst.jsf.facesconfig.ui/src/org/eclipse/jst/jsf/facesconfig/ui/pageflow/util/JSPUtil.java

@@ -0,0 +1,90 @@
+/*******************************************************************************
+ * Copyright (c) 2004, 2008 Sybase, Inc. and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     Sybase, Inc. - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jst.jsf.facesconfig.ui.pageflow.util;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.Path;
+
+/**
+ * utility class for JSP related information.
+ * 
+ * @author Yang Liu
+ * @deprecated
+ * @see JSFUtil
+ */
+public class JSPUtil {
+
+	/**
+	 * get the action list in the jsp file
+	 * @param jspFileName 
+	 * 
+	 * @return - action list
+	 */
+	public static List getActionListInJSPFile(String jspFileName) {
+		/** jsp dom adapter */
+
+        List actions = new ArrayList();
+
+        // convert the relative directory to project directory, e.g., /a.jsp to
+        // /testproject/webroot/a.sjp
+        String physicalJspPath = jspFileName;
+        if (physicalJspPath != null && physicalJspPath.length() > 0)
+        {
+            IPath jspPath = new Path(physicalJspPath);
+            IFile jspFile = ResourcesPlugin.getWorkspace().getRoot().getFile(
+                    jspPath);
+
+            if (jspFile != null && jspFile.exists())
+            {
+                JSPDomAdapter jspAdapter = null;
+                try
+                {
+                    jspAdapter = new JSPDomAdapter();
+                    // initialize the adapter to initialize the model of jsp
+                    if (jspAdapter.initialize(jspFile))
+                    {
+                        // the prefix of JSF HTML TagLib
+                        String prefix = jspAdapter
+                                .getTagLibPrefix(JSPDomAdapter.JSF_HTML_TAGLIB);
+
+                        // get the command butonns
+                        List buttonActions = jspAdapter.getElementsByTagNameNS(
+                                prefix, "commandButton");//$NON-NLS-1$
+                        if (buttonActions != null)
+                            actions.addAll(buttonActions);
+
+                        // get the command links
+                        List linkActions = jspAdapter.getElementsByTagNameNS(
+                                prefix, "commandLink");//$NON-NLS-1$
+                        if (linkActions != null)
+                            actions.addAll(linkActions);
+                    }
+                }
+                finally
+                {
+                    if (jspAdapter != null)
+                    {
+                        jspAdapter.releaseModel();
+                    }
+                }
+            }
+        }
+        return actions;
+	}
+}