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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
AssetEncoder.java | 100% | 100% | 100% | 100% |
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1 | // Copyright 2005 The Apache Software Foundation | |
2 | // | |
3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |
4 | // you may not use this file except in compliance with the License. | |
5 | // You may obtain a copy of the License at | |
6 | // | |
7 | // http://www.apache.org/licenses/LICENSE-2.0 | |
8 | // | |
9 | // 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.engine.encoders; | |
16 | ||
17 | import org.apache.tapestry.Tapestry; | |
18 | import org.apache.tapestry.asset.AssetService; | |
19 | import org.apache.tapestry.engine.ServiceEncoder; | |
20 | import org.apache.tapestry.engine.ServiceEncoding; | |
21 | import org.apache.tapestry.services.ServiceConstants; | |
22 | ||
23 | /** | |
24 | * Encoder for the {@link org.apache.tapestry.asset.AssetService} that uses servlet path info | |
25 | * to store the resource digest and the path to the resource. | |
26 | * | |
27 | * @author Howard M. Lewis Ship | |
28 | * @since 4.0 | |
29 | */ | |
30 | public class AssetEncoder implements ServiceEncoder | |
31 | { | |
32 | private String _path; | |
33 | ||
34 | 3 | public void setPath(String path) |
35 | { | |
36 | 3 | _path = path; |
37 | } | |
38 | ||
39 | 2 | public void encode(ServiceEncoding encoding) |
40 | { | |
41 | 2 | if (!encoding.getParameterValue(ServiceConstants.SERVICE).equals(Tapestry.ASSET_SERVICE)) |
42 | 1 | return; |
43 | ||
44 | 1 | String path = encoding.getParameterValue(AssetService.PATH); |
45 | 1 | String digest = encoding.getParameterValue(AssetService.DIGEST); |
46 | ||
47 | // _path ends with a slash, path starts with one. | |
48 | ||
49 | 1 | String fullPath = _path + digest + path; |
50 | ||
51 | 1 | encoding.setServletPath(fullPath); |
52 | 1 | encoding.setParameterValue(AssetService.PATH, null); |
53 | 1 | encoding.setParameterValue(AssetService.DIGEST, null); |
54 | 1 | encoding.setParameterValue(ServiceConstants.SERVICE, null); |
55 | } | |
56 | ||
57 | 2 | public void decode(ServiceEncoding encoding) |
58 | { | |
59 | 2 | String fullPath = encoding.getServletPath(); |
60 | ||
61 | 2 | if (!fullPath.startsWith(_path)) |
62 | 1 | return; |
63 | ||
64 | 1 | String pathInfo = fullPath.substring(_path.length()); |
65 | 1 | int slashx = pathInfo.indexOf('/'); |
66 | ||
67 | 1 | encoding.setParameterValue(ServiceConstants.SERVICE, Tapestry.ASSET_SERVICE); |
68 | 1 | encoding.setParameterValue(AssetService.DIGEST, pathInfo.substring(0, slashx)); |
69 | 1 | encoding.setParameterValue(AssetService.PATH, pathInfo.substring(slashx)); |
70 | } | |
71 | ||
72 | } |
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