001
014
015 package com.liferay.portal.velocity;
016
017 import com.liferay.portal.kernel.log.Log;
018 import com.liferay.portal.kernel.log.LogFactoryUtil;
019 import com.liferay.portal.kernel.util.GetterUtil;
020 import com.liferay.portal.kernel.util.PropsKeys;
021 import com.liferay.portal.util.PropsUtil;
022
023 import java.io.InputStream;
024
025 import org.apache.commons.collections.ExtendedProperties;
026 import org.apache.velocity.exception.ResourceNotFoundException;
027 import org.apache.velocity.runtime.resource.Resource;
028 import org.apache.velocity.runtime.resource.loader.ResourceLoader;
029
030
033 public class LiferayResourceLoader extends ResourceLoader {
034
035 public static void setListeners(String[] listeners) {
036 _listeners = new VelocityResourceListener[listeners.length];
037
038 for (int i = 0; i < listeners.length; i++) {
039 try {
040 _listeners[i] = (VelocityResourceListener)Class.forName(
041 listeners[i]).newInstance();
042 }
043 catch (Exception ex) {
044 _log.error(ex);
045
046 _listeners[i] = null;
047 }
048 }
049 }
050
051 public long getLastModified(Resource resource) {
052 if (_log.isDebugEnabled()) {
053 _log.debug("Get last modified for " + resource.getName());
054 }
055
056 return 0;
057 }
058
059 public InputStream getResourceStream(String source)
060 throws ResourceNotFoundException {
061
062 if (_log.isDebugEnabled()) {
063 _log.debug("Get resource for " + source);
064 }
065
066 InputStream is = null;
067
068 for (int i = 0; (is == null) && (i < _listeners.length); i++) {
069 if (_listeners[i] != null) {
070 is = _listeners[i].getResourceStream(source);
071 }
072 }
073
074 if (is == null) {
075 if (_log.isDebugEnabled()) {
076 _log.debug("Could not find " + source);
077 }
078
079 throw new ResourceNotFoundException(source);
080 }
081
082 if (_log.isDebugEnabled()) {
083 _log.debug("Successfully got " + source);
084 }
085
086 return is;
087 }
088
089 public void init(ExtendedProperties props) {
090 boolean cachingOn = GetterUtil.getBoolean(PropsUtil.get(
091 PropsKeys.VELOCITY_ENGINE_RESOURCE_MANAGER_CACHE_ENABLED));
092 int modificationCheckInterval = GetterUtil.getInteger(PropsUtil.get(
093 PropsKeys.
094 VELOCITY_ENGINE_RESOURCE_MANAGER_MODIFICATION_CHECK_INTERVAL));
095
096 setCachingOn(cachingOn);
097 setModificationCheckInterval(modificationCheckInterval);
098 }
099
100 public boolean isSourceModified(Resource resource) {
101 if (_log.isDebugEnabled()) {
102 _log.debug("Check modified status for " + resource.getName());
103 }
104
105 return false;
106 }
107
108 private static Log _log = LogFactoryUtil.getLog(
109 LiferayResourceLoader.class);
110
111 private static VelocityResourceListener[] _listeners =
112 new VelocityResourceListener[0];
113
114 }