2 * Copyright (C) 2007-2012 Argeo GmbH
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package org
.argeo
.eclipse
.spring
;
18 import org
.apache
.commons
.logging
.Log
;
19 import org
.apache
.commons
.logging
.LogFactory
;
20 import org
.argeo
.eclipse
.ui
.EclipseUiException
;
21 import org
.eclipse
.core
.commands
.ExecutionEvent
;
22 import org
.eclipse
.core
.commands
.ExecutionException
;
23 import org
.eclipse
.core
.commands
.IHandler
;
24 import org
.eclipse
.core
.commands
.IHandlerListener
;
25 import org
.springframework
.context
.ApplicationContext
;
27 /** Allows to declare Eclipse commands as Spring beans */
28 public class SpringCommandHandler
implements IHandler
{
29 private final static Log log
= LogFactory
30 .getLog(SpringCommandHandler
.class);
32 public void addHandlerListener(IHandlerListener handlerListener
) {
35 public void dispose() {
38 public Object
execute(ExecutionEvent event
) throws ExecutionException
{
39 String commandId
= event
.getCommand().getId();
40 String bundleSymbolicName
= commandId
.substring(0,
41 commandId
.lastIndexOf('.'));
43 if (log
.isTraceEnabled())
44 log
.trace("Execute " + event
+ " via spring command handler "
46 // TODO: make it more flexible and robust
47 ApplicationContext applicationContext
= ApplicationContextTracker
48 .getApplicationContext(bundleSymbolicName
);
49 if (applicationContext
== null)
50 throw new EclipseUiException(
51 "No application context found for "
52 + bundleSymbolicName
);
54 // retrieve the command via its id
55 String beanName
= event
.getCommand().getId();
57 if (!applicationContext
.containsBean(beanName
)) {
58 if (beanName
.startsWith(bundleSymbolicName
))
60 .substring(bundleSymbolicName
.length() + 1);
63 if (!applicationContext
.containsBean(beanName
))
64 throw new ExecutionException("No bean found with name "
65 + beanName
+ " in bundle " + bundleSymbolicName
);
66 Object bean
= applicationContext
.getBean(beanName
);
68 if (!(bean
instanceof IHandler
))
69 throw new ExecutionException("Bean with name " + beanName
70 + " and class " + bean
.getClass()
71 + " does not implement the IHandler interface.");
73 IHandler handler
= (IHandler
) bean
;
74 return handler
.execute(event
);
75 } catch (Exception e
) {
76 // TODO: use eclipse error management
78 throw new ExecutionException("Cannot execute Spring command "
79 + commandId
+ " in bundle " + bundleSymbolicName
, e
);
83 public boolean isEnabled() {
87 public boolean isHandled() {
91 public void removeHandlerListener(IHandlerListener handlerListener
) {