#3639 preliminary check-in proof of concept

src/main/java/edu/harvard/iq/dataverse/CustomizationFilesServlet.java

@@ -0,0 +1,139 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package edu.harvard.iq.dataverse;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import edu.harvard.iq.dataverse.settings.SettingsServiceBean;
+import javax.ejb.EJB;
+
+/**
+ *
+ * @author skraffmi
+ */
+@WebServlet(name = "CustomizationFilesServlet", urlPatterns = {"/CustomizationFilesServlet"})
+public class CustomizationFilesServlet extends HttpServlet {
+
+    @EJB
+    SettingsServiceBean settingsService;
+
+    /**
+     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
+     * methods.
+     *
+     * @param request servlet request
+     * @param response servlet response
+     * @throws ServletException if a servlet-specific error occurs
+     * @throws IOException if an I/O error occurs
+     */
+    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
+            throws ServletException, IOException {
+        response.setContentType("text/html;charset=UTF-8");
+
+
+
+        String customFileType = request.getParameter("customFileType");
+
+         System.out.print("customFileType: " + customFileType);
+        String filePath = getFilePath(customFileType);
+        System.out.print(filePath);
+
+        Path physicalPath = Paths.get(filePath);
+        try {
+            File fileIn = physicalPath.toFile();
+            if (fileIn != null) {
+                FileInputStream inputStream = new FileInputStream(fileIn);
+
+                BufferedReader in = new BufferedReader(new InputStreamReader(inputStream));
+                String line;
+
+                StringBuilder responseData = new StringBuilder();
+                try (PrintWriter out = response.getWriter()) {
+
+                    while ((line = in.readLine()) != null) {
+                        responseData.append(line);
+                        out.println(line);
+                    }
+                }
+
+                inputStream.close();
+
+
+            } else {
+                /*
+                   If the file doesn't exist or it is unreadable we don't care
+                */
+            }
+
+        } catch (Exception e) {
+                /*
+                   If the file doesn't exist or it is unreadable we don't care
+                */
+        }
+
+    }
+
+    private String getFilePath(String fileTypeParam){
+
+        if (fileTypeParam.equals("homePage")) {
+            String nonNullDefaultIfKeyNotFound = "";
+            return settingsService.getValueForKey(SettingsServiceBean.Key.HomePageCustomizationFile, nonNullDefaultIfKeyNotFound);
+        }
+
+        return "";
+    }
+
+    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
+    /**
+     * Handles the HTTP <code>GET</code> method.
+     *
+     * @param request servlet request
+     * @param response servlet response
+     * @throws ServletException if a servlet-specific error occurs
+     * @throws IOException if an I/O error occurs
+     */
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response)
+            throws ServletException, IOException {
+        processRequest(request, response);
+    }
+
+    /**
+     * Handles the HTTP <code>POST</code> method.
+     *
+     * @param request servlet request
+     * @param response servlet response
+     * @throws ServletException if a servlet-specific error occurs
+     * @throws IOException if an I/O error occurs
+     */
+    @Override
+    protected void doPost(HttpServletRequest request, HttpServletResponse response)
+            throws ServletException, IOException {
+        processRequest(request, response);
+    }
+
+    /**
+     * Returns a short description of the servlet.
+     *
+     * @return a String containing servlet description
+     */
+    @Override
+    public String getServletInfo() {
+        return "Short description";
+    }// </editor-fold>
+
+}

src/main/java/edu/harvard/iq/dataverse/settings/SettingsServiceBean.java

@@ -241,7 +241,11 @@ Whether Harvesting (OAI) service is enabled
         /**
          * Whether Export should exclude FieldType.EMAIL
          */
-        ExcludeEmailFromExport;
+        ExcludeEmailFromExport,
+        /*
+         Location and name of HomePage customization file
+        */
+        HomePageCustomizationFile;
 
         @Override
         public String toString() {

src/main/webapp/dataverse.xhtml

@@ -44,6 +44,8 @@
 
                 <h:form id="dataverseForm">
                     <!-- Edit Mode -->
+                    <o:resourceInclude path="/CustomizationFilesServlet?customFileType=homePage" />
+
                     <ui:fragment rendered="#{DataversePage.editMode == 'INFO'}">
                         <p:focus context="dataverseForm"/>
                         <!-- Sample Block -->