001
014
015 package com.liferay.portal.xuggler;
016
017 import com.liferay.portal.kernel.log.Log;
018 import com.liferay.portal.kernel.log.LogFactoryUtil;
019 import com.liferay.portal.kernel.util.ClassLoaderUtil;
020 import com.liferay.portal.kernel.util.ProgressStatusConstants;
021 import com.liferay.portal.kernel.util.ProgressTracker;
022 import com.liferay.portal.kernel.util.PropsKeys;
023 import com.liferay.portal.kernel.util.StringBundler;
024 import com.liferay.portal.kernel.xuggler.Xuggler;
025 import com.liferay.portal.util.JarUtil;
026 import com.liferay.portal.util.PrefsPropsUtil;
027 import com.liferay.portal.util.PropsValues;
028 import com.liferay.util.log4j.Log4JUtil;
029
030 import com.xuggle.ferry.JNILibraryLoader;
031 import com.xuggle.xuggler.IContainer;
032
033 import java.net.URL;
034 import java.net.URLClassLoader;
035
036
039 public class XugglerImpl implements Xuggler {
040
041 @Override
042 public void installNativeLibraries(
043 String name, ProgressTracker progressTracker)
044 throws Exception {
045
046 ClassLoader classLoader = ClassLoaderUtil.getPortalClassLoader();
047
048 if (!(classLoader instanceof URLClassLoader)) {
049 _log.error(
050 "Unable to install JAR because the portal class loader is " +
051 "not an instance of URLClassLoader");
052
053 return;
054 }
055
056 try {
057 if (progressTracker != null) {
058 progressTracker.setStatus(ProgressStatusConstants.DOWNLOADING);
059 }
060
061 JarUtil.downloadAndInstallJar(
062 new URL(PropsValues.XUGGLER_JAR_URL + name),
063 PropsValues.LIFERAY_LIB_PORTAL_DIR, name,
064 (URLClassLoader)classLoader);
065 }
066 catch (Exception e) {
067 _log.error("Unable to install jar " + name, e);
068
069 throw e;
070 }
071 }
072
073 @Override
074 public boolean isEnabled() {
075 return isEnabled(true);
076 }
077
078 @Override
079 public boolean isEnabled(boolean checkNativeLibraries) {
080 boolean enabled = false;
081
082 try {
083 enabled = PrefsPropsUtil.getBoolean(
084 PropsKeys.XUGGLER_ENABLED, PropsValues.XUGGLER_ENABLED);
085 }
086 catch (Exception e) {
087 if (_log.isWarnEnabled()) {
088 _log.warn(e, e);
089 }
090 }
091
092 if (!checkNativeLibraries) {
093 return enabled;
094 }
095
096 if (enabled) {
097 return isNativeLibraryInstalled();
098 }
099
100 return false;
101 }
102
103 @Override
104 public boolean isNativeLibraryInstalled() {
105 if (_nativeLibraryInstalled) {
106 return _nativeLibraryInstalled;
107 }
108
109 String originalLevel = Log4JUtil.getOriginalLevel(
110 JNILibraryLoader.class.getName());
111
112 try {
113 Log4JUtil.setLevel(JNILibraryLoader.class.getName(), "OFF", false);
114
115 IContainer.make();
116
117 _nativeLibraryInstalled = true;
118 }
119 catch (NoClassDefFoundError ncdfe) {
120 informAdministrator(ncdfe.getMessage());
121 }
122 catch (UnsatisfiedLinkError ule) {
123 informAdministrator(ule.getMessage());
124 }
125 finally {
126 Log4JUtil.setLevel(
127 JNILibraryLoader.class.getName(), originalLevel.toString(),
128 false);
129 }
130
131 return _nativeLibraryInstalled;
132 }
133
134 protected void informAdministrator(String errorMessage) {
135 if (!_informAdministrator) {
136 return;
137 }
138
139 _informAdministrator = false;
140
141 StringBundler sb = new StringBundler(7);
142
143 sb.append("Liferay does not have the Xuggler native libraries ");
144 sb.append("installed. In order to generate video and audio previews, ");
145 sb.append("please follow the instructions for Xuggler in the Server ");
146 sb.append("Administration section of the Control Panel at: ");
147 sb.append("http:
148 sb.append("external-services. Error message is: ");
149 sb.append(errorMessage);
150
151 _log.error(sb.toString());
152 }
153
154 private static final Log _log = LogFactoryUtil.getLog(XugglerImpl.class);
155
156 private static boolean _informAdministrator = true;
157 private static boolean _nativeLibraryInstalled;
158
159 }