Revision: 762
http://stripes.svn.sourceforge.net/stripes/?rev=762&view=rev
Author: tfenne
Date: 2008-01-19 07:02:20 -0800 (Sat, 19 Jan 2008)
Log Message:
-----------
Fix for STS-442, add a TEI class for useActionBean
Modified Paths:
--------------
trunk/stripes/resources/stripes.tld
Added Paths:
-----------
trunk/stripes/src/net/sourceforge/stripes/tag/UseActionBeanTagExtraInfo.java
Modified: trunk/stripes/resources/stripes.tld
===================================================================
--- trunk/stripes/resources/stripes.tld 2008-01-19 02:22:35 UTC (rev 761)
+++ trunk/stripes/resources/stripes.tld 2008-01-19 15:02:20 UTC (rev 762)
@@ -1912,6 +1912,7 @@
<display-name>useActionBean</display-name>
<name>useActionBean</name>
<tag-class>net.sourceforge.stripes.tag.UseActionBeanTag</tag-class>
+
<tei-class>net.sourceforge.stripes.tag.UseActionBeanTagExtraInfo</tei-class>
<body-content>empty</body-content>
<attribute>
<description>
Added:
trunk/stripes/src/net/sourceforge/stripes/tag/UseActionBeanTagExtraInfo.java
===================================================================
---
trunk/stripes/src/net/sourceforge/stripes/tag/UseActionBeanTagExtraInfo.java
(rev 0)
+++
trunk/stripes/src/net/sourceforge/stripes/tag/UseActionBeanTagExtraInfo.java
2008-01-19 15:02:20 UTC (rev 762)
@@ -0,0 +1,81 @@
+/* Copyright 2008 Tim Fennell
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sourceforge.stripes.tag;
+
+import javax.servlet.jsp.tagext.TagExtraInfo;
+import javax.servlet.jsp.tagext.VariableInfo;
+import javax.servlet.jsp.tagext.TagData;
+import javax.servlet.jsp.tagext.ValidationMessage;
+import java.util.Collection;
+import java.util.ArrayList;
+
+/**
+ * Validates that the mutually exclusive attribute pairs of the tag are
provided correctly
+ * and attempts to provide type information to the container for the bean
assigned
+ * to the variable named by the [EMAIL PROTECTED] var} or [EMAIL PROTECTED]
id} attribute. The latter can only be done
+ * when the [EMAIL PROTECTED] beanclass} attribute is used instead of the
[EMAIL PROTECTED] binding} attribute
+ * because runtime information is needed to translate [EMAIL PROTECTED]
binding} into a class name.
+ *
+ * @author tfenne
+ * @since Stripes 1.5
+ */
+public class UseActionBeanTagExtraInfo extends TagExtraInfo {
+ private static final VariableInfo[] NO_INFO = new VariableInfo[0];
+
+ /**
+ * Attempts to return type information so that the container can create a
+ * named variable for the action bean.
+ */
+ @Override public VariableInfo[] getVariableInfo(final TagData tag) {
+ // We can only provide the type of 'var' if beanclass was used because
+ // if binding was used we need runtime information!
+ Object beanclass = tag.getAttribute("beanclass");
+ if (beanclass != null) {
+ String var = tag.getAttributeString("var");
+ if (var == null) tag.getAttribute("id");
+
+ // Make sure we have the class name, not the class
+ if (beanclass instanceof Class) beanclass = ((Class)
beanclass).getName();
+
+ // Return the variable info
+ return new VariableInfo[] { new VariableInfo(var, (String)
beanclass, true, VariableInfo.AT_BEGIN) };
+ }
+ else {
+ return NO_INFO;
+ }
+ }
+
+ /**
+ * Checks to ensure that where the tag supports providing one of two
attributes
+ * that one and only one is provided.
+ */
+ @Override public ValidationMessage[] validate(final TagData tag) {
+ Collection<ValidationMessage> errors = new
ArrayList<ValidationMessage>();
+
+ Object beanclass = tag.getAttribute("beanclass");
+ String binding = tag.getAttributeString("binding");
+ if (!(beanclass != null ^ binding != null)) {
+ errors.add(new ValidationMessage(tag.getId(), "Exactly one of
'beanclass' or 'binding' must be supplied."));
+ }
+
+ String var = tag.getAttributeString("var");
+ String id = tag.getAttributeString("id");
+ if (!(var != null ^ id != null)) {
+ errors.add(new ValidationMessage(tag.getId(), "Exactly one of
'var' or 'id' must be supplied."));
+ }
+
+ return errors.toArray(new ValidationMessage[errors.size()]);
+ }
+}
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