package org.trails.page;

 import java.util.ArrayList;

 import java.util.List;

 import ognl.Ognl;

 import ognl.OgnlException;

 import org.apache.tapestry.annotations.Persist;

 import org.trails.TrailsRuntimeException;

 import org.trails.callback.SearchCallback;

 import org.trails.descriptor.IClassDescriptor;

 public abstract class SearchPage extends TrailsPage

 {

         @Persist

         public abstract Class getType();

         public abstract void setType(Class type);

         @Override

         public void pushCallback()

         {

                 getCallbackStack().push(new SearchCallback(getPageName(), getType()));

         }

         public IClassDescriptor getClassDescriptor()

         {

                 return getDescriptorService().getClassDescriptor(getType());

         }

         public String[] getSearchableProperties()

         {

                 try

                 {

                         // Danger: gross code

                         ArrayList<String> stringList = new ArrayList<String>();

                         stringList.addAll(

                                 (List) Ognl.getValue("propertyDescriptors.{? searchable}.{name}", getClassDescriptor()));

                         return stringList.toArray(new String[]{});

                 }

                 catch (OgnlException oe)

                 {

                         throw new TrailsRuntimeException(oe);

                 }

         }

 }