1
22
23 package com.liferay.portal.velocity;
24
25 import com.liferay.portal.kernel.util.GetterUtil;
26 import com.liferay.portal.util.PropsUtil;
27
28 import java.io.InputStream;
29
30 import org.apache.commons.collections.ExtendedProperties;
31 import org.apache.commons.logging.Log;
32 import org.apache.commons.logging.LogFactory;
33 import org.apache.velocity.exception.ResourceNotFoundException;
34 import org.apache.velocity.runtime.resource.Resource;
35 import org.apache.velocity.runtime.resource.loader.ResourceLoader;
36
37
43 public class LiferayResourceLoader extends ResourceLoader {
44
45 private static VelocityResourceListener[] _listeners =
46 new VelocityResourceListener[0];
47
48 public static void setListeners(String[] listeners) {
49 _listeners = new VelocityResourceListener[listeners.length];
50
51 for (int i = 0; i < listeners.length; i++) {
52 try {
53 _listeners[i] = (VelocityResourceListener)Class.forName(
54 listeners[i]).newInstance();
55 }
56 catch (Exception ex) {
57 _log.error(ex);
58
59 _listeners[i] = null;
60 }
61 }
62 }
63
64 public void init(ExtendedProperties props) {
65 boolean cachingOn = GetterUtil.getBoolean(PropsUtil.get(
66 PropsUtil.VELOCITY_ENGINE_RESOURCE_MANAGER_CACHE_ENABLED));
67
68 setCachingOn(cachingOn);
69 setModificationCheckInterval(0);
70 }
71
72 public InputStream getResourceStream(String source)
73 throws ResourceNotFoundException {
74
75 if (_log.isDebugEnabled()) {
76 _log.debug("Get resource for " + source);
77 }
78
79 InputStream is = null;
80
81 for (int i = 0; (is == null) && (i < _listeners.length); i++) {
82 if (_listeners[i] != null) {
83 if (is == null) {
84 is = _listeners[i].getResourceStream(source);
85 }
86 }
87 }
88
89 if (is == null) {
90 _log.error("Failed to get " + source);
91
92 throw new ResourceNotFoundException(source);
93 }
94
95 if (_log.isDebugEnabled()) {
96 _log.debug("Successfully got " + source);
97 }
98
99 return is;
100 }
101
102 public long getLastModified(Resource resource) {
103 if (_log.isDebugEnabled()) {
104 _log.debug("Get last modified for " + resource.getName());
105 }
106
107 return 0;
108 }
109
110 public boolean isSourceModified(Resource resource) {
111 if (_log.isDebugEnabled()) {
112 _log.debug("Check modified status for " + resource.getName());
113 }
114
115 return false;
116 }
117
118 private static Log _log = LogFactory.getLog(LiferayResourceLoader.class);
119
120 }