@UnsafeMethod
public synchronized void enablePlugin(Plugin plugin) {
if (!CommonPlugin.class.isAssignableFrom(plugin.getClass())) {
throw new IllegalArgumentException(
"Cannot enable plugin with this PluginLoader as it is of the wrong type!");
}
if (!plugin.isEnabled()) {
CommonPlugin cp = (CommonPlugin) plugin;
String name = cp.getDescription().getName();
if (!loaders.containsKey(name)) {
loaders.put(name, (CommonClassLoader) cp.getClassLoader());
}
try {
cp.setEnabled(true);
cp.onEnable();
} catch (Throwable e) {
engine
.getLogger()
.log(
Level.SEVERE,
"An error occured when enabling '"
+ plugin.getDescription().getFullName()
+ "': "
+ e.getMessage(),
e);
}
engine.getEventManager().callEvent(new PluginEnableEvent(cp));
}
}
/**
* @param file Plugin file object
* @return The current plugin's description element.
* @throws InvalidPluginException
* @throws InvalidDescriptionFileException
*/
protected synchronized PluginDescriptionFile getDescription(File file)
throws InvalidPluginException, InvalidDescriptionFileException {
if (!file.exists()) {
throw new InvalidPluginException(file.getName() + " does not exist!");
}
PluginDescriptionFile description = null;
JarFile jar = null;
InputStream in = null;
try {
// Spout plugin properties file
jar = new JarFile(file);
JarEntry entry = jar.getJarEntry(YAML_SPOUT);
// Fallback plugin properties file
if (entry == null) {
entry = jar.getJarEntry(YAML_OTHER);
}
if (entry == null) {
throw new InvalidPluginException("Jar has no properties.yml or plugin.yml!");
}
in = jar.getInputStream(entry);
description = new PluginDescriptionFile(in);
} catch (IOException e) {
throw new InvalidPluginException(e);
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
engine.getLogger().log(Level.WARNING, "Problem closing input stream", e);
}
}
if (jar != null) {
try {
jar.close();
} catch (IOException e) {
engine.getLogger().log(Level.WARNING, "Problem closing jar input stream", e);
}
}
}
return description;
}