implemented issue #115 - configurable support extensions

ZkGrailsPlugin.groovy

@@ -91,7 +91,21 @@ this plugin adds ZK Ajax framework (www.zkoss.org) support to Grails application
         "org.codehaus.groovy.grails.orm.hibernate.support.GrailsOpenSessionInViewFilter"
 
     def doWithWebDescriptor = { xml ->
-        def urls = ["*.zul", "*.zhtml", "*.svg", "*.xml2html"]
+        //
+        // e.g. ["zul"]
+        //
+        def supportExts = ZkConfigHelper.supportExtensions
+
+        //
+        // e.g. ["*.zul", "/zkau/*"]
+        //
+        def filterUrls = supportExts.collect{ "*." + it } + ["/zkau/*"]
+
+        //
+        // e.g. ["*.zul", "*.dsp", "*.zhtml", "*.svg", "*.xml2html"]
+        //
+        def urls = supportExts.collect{ "*." + it } + 
+                   ["*.dsp", "*.zhtml", "*.svg", "*.xml2html"]
 
         // adding GrailsOpenSessionInView
         if(manager?.hasGrailsPlugin("hibernate")) {
@@ -104,7 +118,7 @@ this plugin adds ZK Ajax framework (www.zkoss.org) support to Grails application
             }
             // filter for each ZK urls
             def filterMappingElements = xml.'filter-mapping'[0]
-            ["*.zul", "/zkau/*"].each {p ->
+            filterUrls.each {p ->
                 filterMappingElements + {
                     'filter-mapping' {
                         'filter-name'("GOSIVFilter")

src/groovy/org/zkoss/zkgrails/ZkConfigHelper.groovy

@@ -0,0 +1,22 @@
+package org.zkoss.zkgrails
+
+import org.codehaus.groovy.grails.commons.ConfigurationHolder
+
+//
+// Helper class to get the Url Mapping in the ZKPageFilter and ZkGrailsPlugin
+//
+class ZkConfigHelper {
+
+    //
+    // Get the extensions configuration using the ConfigurationHolder
+    // Return String[]{"zul"} if not configured
+    //
+    static ArrayList<String> getSupportExtensions() {
+        def exts = ConfigurationHolder.config?.grails.zk.extensions
+        if(exts) {
+            return exts
+        } else {
+            return ["zul"] as String[]
+        }
+    }
+}

src/java/org/zkoss/zkgrails/ZKGrailsPageFilter.java

@@ -84,12 +84,23 @@ private String extractRequestPath(HttpServletRequest request) {
     }    
 
     private boolean isZK(HttpServletRequest request) {
+        if(path.indexOf("/zkau") != -1) return true;
+
+        //
+        // Extend checking in custom url mapping in custom url mapping
+        // By default, ["zul"] will be checked here
+        //
+        ArrayList<String> arrExtensions = ZkConfigHelper.getSupportExtensions();
+        for(String sExt : arrExtensions) {
+            if(path.lastIndexOf("." + sExt) != -1) return true;
+        }
+
         String path = extractRequestPath(request);
-        final String[] ext = new String[]{".zul",".dsp","*.zhtml", "*.svg", "*.xml2html"};
+        final String[] ext = new String[]{".dsp",".zhtml", ".svg", ".xml2html"};
         for(int i=0;i < ext.length; i++) {
-            if(path.lastIndexOf(ext[i])!=-1) return true;
+            if(path.lastIndexOf(ext[i]) != -1) return true;
         }
-        if(path.indexOf("/zkau")!=-1) return true;
+
         return false;
     }