public void enterPath() {
FileObject fileObject = (FileObject) table.getItem(currentRow).getData("fileObject");
try {
if (fileObject.getType().equals(FileType.FOLDER)) {
historyManager.setSelectedItem(
currentFileObject.getName().getPath(), fileObject.getName().getBaseName());
currentFileObject = currentFileObject.getChild(fileObject.getName().getBaseName());
changeCurrentNode();
textLocation.setText(currentFileObject.getName().getPath());
} else {
editFile(fileObject);
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Attempt to discover a valid Hadoop configuration from the provided folder.
*
* @param folder Folder that may represent a Hadoop configuration
* @return A Hadoop configuration for the folder provided or null if none is found.
* @throws ConfigurationException Error when loading the Hadoop configuration.
*/
protected HadoopConfiguration loadHadoopConfiguration(FileObject folder)
throws ConfigurationException {
ShimProperties configurationProperties = new ShimProperties();
try {
FileObject configFile = folder.getChild(CONFIG_PROPERTIES_FILE);
if (configFile != null) {
configurationProperties.putAll(loadProperties(configFile));
}
} catch (Exception ex) {
throw new ConfigurationException(
BaseMessages.getString(
PKG, "Error.UnableToLoadConfigurationProperties", CONFIG_PROPERTIES_FILE));
}
for (Entry<String, String> entry :
configurationProperties.getPrefixedProperties("java.system").entrySet()) {
System.setProperty(entry.getKey(), entry.getValue());
}
try {
// Parse all URLs from an optional classpath from the configuration file
List<URL> classpathElements =
parseURLs(folder, configurationProperties.getProperty(CONFIG_PROPERTY_CLASSPATH));
// Allow external configuration of classes to ignore
String ignoredClassesProperty =
configurationProperties.getProperty(CONFIG_PROPERTY_IGNORE_CLASSES);
String[] ignoredClasses = null;
if (ignoredClassesProperty != null) {
ignoredClasses = ignoredClassesProperty.split(",");
}
// Pass our class loader in to the configurations' CL as its parent so it
// can find the same
// API classes we're using
ClassLoader cl =
createConfigurationLoader(
folder,
getClass().getClassLoader(),
classpathElements,
configurationProperties,
ignoredClasses);
verifyClasses(
cl,
configurationProperties.getProperty("required.classes"),
configurationProperties.getProperty("name"));
// Treat the Hadoop shim special. It is absolutely required for a Hadoop configuration.
HadoopShim hadoopShim = null;
List<PentahoHadoopShim> shims = new ArrayList<PentahoHadoopShim>();
// Attempt to locate a shim within this folder
for (Class<? extends PentahoHadoopShim> shimType : SHIM_TYPES) {
PentahoHadoopShim s = locateServiceImpl(cl, shimType);
if (s == null && shimType.getAnnotation(Required.class) != null) {
logger.warn(
BaseMessages.getString(PKG, "Error.MissingRequiredShim", shimType.getSimpleName()));
// Do not continue to load the configuration if we are missing a required shim
return null;
}
if (HadoopShim.class.isAssignableFrom(shimType)) {
hadoopShim = (HadoopShim) s;
} else {
shims.add(s);
}
}
String id = folder.getName().getBaseName();
String name = configurationProperties.getProperty(CONFIG_PROPERTY_NAME, id);
HadoopConfiguration config =
new HadoopConfiguration(
configurationProperties,
folder,
id,
name,
hadoopShim,
shims.toArray(EMPTY_SHIM_ARRAY));
// Register native libraries after everything else has been loaded successfully
registerNativeLibraryPaths(configurationProperties.getProperty(CONFIG_PROPERTY_LIBRARY_PATH));
hadoopShim.onLoad(config, fsm);
return config;
} catch (Throwable t) {
throw new ConfigurationException(
BaseMessages.getString(PKG, "Error.LoadingConfiguration"), t);
}
}