// Copyright 2006 The Apache Software Foundation
//
// 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 org.apache.tapestry.test.pagelevel;
import org.apache.tapestry.Link;
import org.apache.tapestry.dom.Document;
import org.apache.tapestry.internal.services.ActionLinkHandler;
import org.apache.tapestry.internal.services.ComponentInvocation;
import org.apache.tapestry.internal.services.ComponentInvocationMap;
import org.apache.tapestry.internal.services.LinkActionResponseGenerator;
import org.apache.tapestry.ioc.Registry;
import org.apache.tapestry.services.ActionResponseGenerator;
/**
* Simulates a click on an action link.
*/
public class ActionLinkInvoker implements ComponentInvoker
{
private final Registry _registry;
private final ComponentInvoker _followupInvoker;
private final ActionLinkHandler _actionLinkHandler;
private final ComponentInvocationMap _componentInvocationMap;
public ActionLinkInvoker(Registry registry, ComponentInvoker followupInvoker,
ComponentInvocationMap componentInvocationMap)
{
_registry = registry;
_followupInvoker = followupInvoker;
_actionLinkHandler = _registry.getService(
"tapestry.ActionLinkHandler",
ActionLinkHandler.class);
_componentInvocationMap = componentInvocationMap;
}
/**
* Click on the action link and get another link in return. Then follow up the link with another
* {@link ComponentInvoker}.
*
* @param invocation
* The ComponentInvocation object corresponding to the action link.
* @return The DOM created. Typically you will assert against it.
*/
public Document invoke(ComponentInvocation invocation)
{
ActionResponseGenerator generator = click(invocation);
if (generator instanceof LinkActionResponseGenerator)
{
LinkActionResponseGenerator linkGenerator = (LinkActionResponseGenerator) generator;
Link link = linkGenerator.getLink();
ComponentInvocation followup = _componentInvocationMap.get(link);
return _followupInvoker.invoke(followup);
}
String message = String
.format(
"ActionResponseGenerator %s is an instance of class %s, which is not compatible with PageTester.",
generator,
generator.getClass());
throw new RuntimeException(message);
}
private ActionResponseGenerator click(ComponentInvocation invocation)
{
try
{
// Bypass most of the Tapestry stack, to get right in there.
return _actionLinkHandler.handle(invocation);
}
finally
{
_registry.cleanupThread();
}
}
}