public Map<String, Object> createKey(Object input) {
// return null if no CacheKey is present
if (this.cachedKeys.size() == 0) {
return new HashMap<>();
}
Map<String, Object> filteredInput = new HashMap<>(converter.convertContractToMap(input));
return createKeyFromMap(filteredInput);
}
/** Creates cache key using input contract fields annotated with {@link CacheKey}. */
public class CacheKeyFilter {
private Set<String> cachedKeys = new HashSet<>();
private ContractConverter converter = ContractConverter.instance();
public CacheKeyFilter(Class<?> cachedClass) {
for (Field field : cachedClass.getDeclaredFields()) {
if (field.isAnnotationPresent(CacheKey.class)) {
cachedKeys.add(field.getName());
}
}
}
public Map<String, Object> createKey(ObjectNode input) {
// return null if no CacheKey is present
if (this.cachedKeys.size() == 0) {
return new HashMap<>();
}
Map<String, Object> filteredInput = ContractConverter.instance().convertObjectNodeToMap(input);
return createKeyFromMap(filteredInput);
}
public Map<String, Object> createKey(Object input) {
// return null if no CacheKey is present
if (this.cachedKeys.size() == 0) {
return new HashMap<>();
}
Map<String, Object> filteredInput = new HashMap<>(converter.convertContractToMap(input));
return createKeyFromMap(filteredInput);
}
private Map<String, Object> createKeyFromMap(Map<String, Object> filteredInput) {
Iterator<String> fieldsIterator = filteredInput.keySet().iterator();
while (fieldsIterator.hasNext()) {
if (!cachedKeys.contains(fieldsIterator.next())) {
fieldsIterator.remove();
}
}
return filteredInput;
}
}