Examples with LookupTableInfo eu.esdihumboldt.hale.common.lookup.LookupTableInfo used on opensource projects

Example 1 with LookupTableInfo

use of eu.esdihumboldt.hale.common.lookup.LookupTableInfo in project hale by halestudio.

the class ClassificationMappingUtil method getClassificationLookup.

/**
 * Get the classification lookup table from the transformation parameters.
 *
 * @param parameters the transformation parameters
 * @param serviceProvider service provider in case a lookup table has to be
 *            retrieved through a service
 * @return the classification lookup table
 */
public static LookupTable getClassificationLookup(Multimap<String, ? extends Value> parameters, ServiceProvider serviceProvider) {
    try {
        if (!(parameters.get(PARAMETER_LOOKUPTABLE).isEmpty())) {
            Collection<? extends Value> tmpMap = parameters.get(PARAMETER_LOOKUPTABLE);
            return tmpMap.iterator().next().as(LookupTable.class);
        }
        if (!(parameters.get(PARAMETER_LOOKUPTABLE_ID).isEmpty())) {
            LookupService lookupServiceImpl = serviceProvider.getService(LookupService.class);
            Collection<? extends Value> tmpMap = parameters.get(PARAMETER_LOOKUPTABLE_ID);
            LookupTableInfo lookupTableInfo = lookupServiceImpl.getTable(tmpMap.iterator().next().as(String.class));
            return lookupTableInfo.getTable();
        }
    } catch (NullPointerException e) {
        log.error("Service provider not accessible for retrieving lookup table", e);
    }
    // For reason of compatibility we need the following code
    // lookup table in strangely encoded string parameter
    Collection<? extends Value> mappings = parameters.get(PARAMETER_CLASSIFICATIONS);
    try {
        Map<Value, Value> lookupMap = new HashMap<Value, Value>();
        for (Value mapping : mappings) {
            String[] parts = mapping.as(String.class).split(" ");
            if (parts.length > 0) {
                Value target = Value.of(URLDecoder.decode(parts[0], "UTF-8"));
                for (int i = 1; i < parts.length; i++) {
                    lookupMap.put(Value.of(URLDecoder.decode(parts[i], "UTF-8")), target);
                }
            }
        }
        return new LookupTableImpl(lookupMap);
    } catch (UnsupportedEncodingException e) {
        throw new IllegalStateException("Failed to decode classification mapping.");
    }
}