public static DataAccessConnectionDescriptor[] fromClass(Class<? extends DataAccess> dataAccess)
throws Exception {
ArrayList<DataAccessConnectionDescriptor> descriptors =
new ArrayList<DataAccessConnectionDescriptor>();
AbstractDataAccess sample = (AbstractDataAccess) dataAccess.newInstance();
Connection[] conns = sample.getAvailableConnections();
if (conns.length > 0) {
for (Connection conn : conns) {
try {
String name =
sample.getType()
+ (!(conn.getGenericType().equals(ConnectionType.NONE))
? ("_" + conn.getType())
: "");
DataAccessConnectionDescriptor descriptor = new DataAccessConnectionDescriptor(name);
descriptor.setDataAccess(sample);
descriptor.setConnection(conn);
descriptors.add(descriptor);
} catch (UnsupportedOperationException e) {
logger.warn(
"Failed to generate a descriptor for " + sample.getType() + "_" + conn.getType());
}
}
}
return descriptors.toArray(new DataAccessConnectionDescriptor[descriptors.size()]);
}
// @Exposed(accessLevel = AccessLevel.PUBLIC, outputType = MimeType.JSON)
public void listDataAccessTypes(final OutputStream out, final boolean refreshCache)
throws Exception {
// boolean refreshCache = Boolean.parseBoolean(requParam.getStringParameter("refreshCache",
// "false"));
DataAccessConnectionDescriptor[] data =
SettingsManager.getInstance().getDataAccessDescriptors(refreshCache);
StringBuilder output = new StringBuilder("");
if (data != null) {
output.append("{\n");
for (DataAccessConnectionDescriptor datum : data) {
output.append(datum.toJSON()).append(",\n");
}
writeOut(out, output.toString().replaceAll(",\n\\z", "\n}"));
}
}
