You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@velocity.apache.org by ge...@apache.org on 2001/02/26 05:09:19 UTC
cvs commit: jakarta-velocity/examples/app_example1 Example.java
geirm 01/02/25 20:09:19
Modified: examples/app_example1 Example.java
Log:
Changed how getTemplate() is handled to demonstrate the two new exceptions
for apps.
Revision Changes Path
1.2 +28 -6 jakarta-velocity/examples/app_example1/Example.java
Index: Example.java
===================================================================
RCS file: /home/cvs/jakarta-velocity/examples/app_example1/Example.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- Example.java 2001/02/12 03:08:22 1.1
+++ Example.java 2001/02/26 04:09:19 1.2
@@ -1,7 +1,7 @@
/*
* The Apache Software License, Version 1.1
*
- * Copyright (c) 2000 The Apache Software Foundation. All rights
+ * Copyright (c) 2000-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -57,6 +57,9 @@
import org.apache.velocity.VelocityContext;
import org.apache.velocity.Template;
+import org.apache.velocity.exception.ParseErrorException;
+import org.apache.velocity.exception.ResourceNotFoundException;
+
import java.io.*;
import java.util.ArrayList;
@@ -66,7 +69,7 @@
*
* @author <a href="mailto:jvanzyl@periapt.com">Jason van Zyl</a>
* @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a>
- * @version $Id: Example.java,v 1.1 2001/02/12 03:08:22 geirm Exp $
+ * @version $Id: Example.java,v 1.2 2001/02/26 04:09:19 geirm Exp $
*/
public class Example
@@ -92,11 +95,28 @@
/*
* get the Template object. This is the parsed version of your
- * template input file.
+ * template input file. Note that getTemplate() can throw
+ * ResourceNotFoundException : if it doesn't find the template
+ * ParseErrorException : if there is something wrong with the VTL
+ * Exception : if something else goes wrong (this is generally
+ * indicative of as serious problem...)
*/
+
+ Template template = null;
- Template template = Runtime.getTemplate(templateFile);
-
+ try
+ {
+ template = Runtime.getTemplate(templateFile);
+ }
+ catch( ResourceNotFoundException rnfe )
+ {
+ System.out.println("Example : error : cannot find template " + templateFile );
+ }
+ catch( ParseErrorException pee )
+ {
+ System.out.println("Example : Syntax error in template " + templateFile + ":" + pee );
+ }
+
/*
* Now have the template engine process your template using the
* data placed into the context. Think of it as a 'merge'
@@ -105,7 +125,9 @@
BufferedWriter writer = writer = new BufferedWriter(
new OutputStreamWriter(System.out));
- template.merge(context, writer);
+
+ if ( template != null)
+ template.merge(context, writer);
/*
* flush and cleanup