01: // Copyright 2007 The Apache Software Foundation
02: //
03: // Licensed under the Apache License, Version 2.0 (the "License");
04: // you may not use this file except in compliance with the License.
05: // You may obtain a copy of the License at
06: //
07: // http://www.apache.org/licenses/LICENSE-2.0
08: //
09: // Unless required by applicable law or agreed to in writing, software
10: // distributed under the License is distributed on an "AS IS" BASIS,
11: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: // See the License for the specific language governing permissions and
13: // limitations under the License.
14:
15: package org.apache.tapestry.internal.services;
16:
17: import org.apache.tapestry.annotations.Meta;
18: import org.apache.tapestry.internal.KeyValue;
19: import org.apache.tapestry.internal.TapestryInternalUtils;
20: import org.apache.tapestry.model.MutableComponentModel;
21: import org.apache.tapestry.services.ClassTransformation;
22: import org.apache.tapestry.services.ComponentClassTransformWorker;
23:
24: /**
25: * Checks for the presence of a {@link Meta} annotation, and adds the data within to the component
26: * model.
27: */
28: public class MetaWorker implements ComponentClassTransformWorker {
29:
30: public void transform(ClassTransformation transformation,
31: MutableComponentModel model) {
32: Meta annotation = transformation.getAnnotation(Meta.class);
33:
34: if (annotation == null)
35: return;
36:
37: for (String meta : annotation.value()) {
38: KeyValue kv = TapestryInternalUtils.parseKeyValue(meta);
39:
40: model.setMeta(kv.getKey(), kv.getValue());
41: }
42: }
43:
44: }
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