/**
* Creates a new file in the config/upgrade folder. The new file is a concatenation of entries of
* all files contained in the config/schema folder.
*
* @param folder The folder containing the schema files.
* @param revision The revision number of the current binary version.
* @throws Exception If we cannot read the files contained in the folder where the schema files
* are supposed to be, or the file has errors.
*/
static void updateConfigUpgradeSchemaFile(final File folder, final String revision)
throws Exception {
// We need to upgrade the schema.ldif.<rev> file contained in the
// config/upgrade folder otherwise, we cannot enable the backend at
// server's start. We need to read all files contained in config/schema
// and add all attribute/object classes in this new super entry which
// will be read at start-up.
Entry theNewSchemaEntry = new LinkedHashMapEntry();
LDIFEntryReader reader = null;
LDIFEntryWriter writer = null;
try {
if (folder.isDirectory()) {
final FilenameFilter filter = new SchemaConfigManager.SchemaFileFilter();
for (final File f : folder.listFiles(filter)) {
logger.debug(LocalizableMessage.raw(String.format("Processing %s", f.getAbsolutePath())));
reader = new LDIFEntryReader(new FileInputStream(f));
try {
while (reader.hasNext()) {
final Entry entry = reader.readEntry();
theNewSchemaEntry.setName(entry.getName());
for (final Attribute at : entry.getAllAttributes()) {
theNewSchemaEntry.addAttribute(at);
}
}
} catch (Exception ex) {
throw new Exception(
"Error parsing existing schema file " + f.getName() + " - " + ex.getMessage(), ex);
}
}
// Creates a File object representing
// config/upgrade/schema.ldif.revision which the server creates
// the first time it starts if there are schema customizations.
final File destination =
new File(
configDirectory,
Installation.UPGRADE_PATH + File.separator + "schema.ldif." + revision);
// Checks if the parent exists (eg. embedded
// server doesn't seem to provide that folder)
File parentDirectory = destination.getParentFile();
if (!parentDirectory.exists()) {
logger.debug(
LocalizableMessage.raw(
String.format("Parent file of %s doesn't exist", destination.getPath())));
parentDirectory.mkdirs();
logger.debug(
LocalizableMessage.raw(
String.format("Parent directory %s created.", parentDirectory.getPath())));
}
if (!destination.exists()) {
destination.createNewFile();
}
logger.debug(
LocalizableMessage.raw(
String.format("Writing entries in %s.", destination.getAbsolutePath())));
writer = new LDIFEntryWriter(new FileOutputStream(destination));
writer.writeEntry(theNewSchemaEntry);
logger.debug(
LocalizableMessage.raw(
String.format(
"%s created and completed successfully.", destination.getAbsolutePath())));
}
} finally {
StaticUtils.close(reader, writer);
}
}
