/** {@inheritDoc} */
@Override
public Set<String> getVariantAttributes(final String variantProductType) {
final ComposedTypeModel composedTypeModel =
typeService.getComposedTypeForCode(variantProductType);
if (composedTypeModel instanceof VariantTypeModel) {
final VariantTypeModel variantTypeModel = (VariantTypeModel) composedTypeModel;
final Collection<VariantAttributeDescriptorModel> variantAttributtes =
getVariantAttributesForVariantType(variantTypeModel);
if (CollectionUtils.isEmpty(variantAttributtes)) {
return Collections.EMPTY_SET;
} else {
final Set<String> ret = new HashSet<String>(variantAttributtes.size());
for (final VariantAttributeDescriptorModel vad : variantAttributtes) {
ret.add(vad.getQualifier());
}
return ret;
}
} else {
throw new IllegalArgumentException(
"there is no variant type '"
+ variantProductType
+ "'"
+ (composedTypeModel == null
? ""
: " - found composed type (" + composedTypeModel + ") instead"));
}
}
/** {@inheritDoc} */
@Override
public Map<String, Collection<Object>> getAssignedVariantAttributes(
final ProductModel baseProduct) {
validateParameterNotNullStandardMessage("baseProduct", baseProduct);
final Map<String, Collection<Object>> result = new HashMap<String, Collection<Object>>();
final Collection<VariantProductModel> variantModelList = baseProduct.getVariants();
final List<VariantAttributeDescriptorModel> vadList =
getVariantAttributesForVariantType(baseProduct.getVariantType());
// iterate trough all variants to get the qualifier with appropriate values
for (final VariantProductModel variant : variantModelList) {
for (final VariantAttributeDescriptorModel item : vadList) {
Collection values = result.get(item.getQualifier());
if (values == null) {
values = new LinkedHashSet();
result.put(item.getQualifier(), values);
}
// there is no chance to read the attribute value in SL, because it"s not a part of the
// model.
// final Object value = variant.getAttributeProvider().getAttribute(item.getQualifier());
// Currently the jalo-solution has to be used
values.add(getVariantAttributeValue(variant, item.getQualifier()));
}
}
if (LOG.isDebugEnabled()) {
LOG.debug(result.size() + " variant attributes with assigned values found");
}
return result;
}
/** {@inheritDoc} */
@Override
public Collection<VariantProductModel> getVariantProductForAttributeValues(
final ProductModel baseProduct, final Map<String, Object> filterValues) {
validateParameterNotNullStandardMessage("baseProduct", baseProduct);
final Collection<VariantProductModel> result = new ArrayList<VariantProductModel>();
final List<VariantAttributeDescriptorModel> vadList =
getVariantAttributesForVariantType(baseProduct.getVariantType());
final Collection<VariantProductModel> allBaseProductVariants = baseProduct.getVariants();
if (filterValues == null || filterValues.isEmpty()) {
// no filter defined - no results.
if (LOG.isDebugEnabled()) {
LOG.debug("The filter values haven't been set, no matching variants in cases like this.");
}
return result;
}
// iterate through all variants and filter those with matching qualifier and values
for (final VariantProductModel variant : allBaseProductVariants) {
boolean add = true;
for (final Iterator<Map.Entry<String, Object>> iterator = filterValues.entrySet().iterator();
iterator.hasNext(); ) {
if (!add) {
break; // the filter element, which has been checked doesn't match, skip checking of
// addtional filter elements, go to next variant.
}
final Map.Entry entry = iterator.next();
final String filterKey = (String) entry.getKey();
final Object filterValue = entry.getValue();
// compare the filterKey and filterValue with all attributes (qualifier-value) of the
// variantType.
for (final VariantAttributeDescriptorModel attrDesc : vadList) {
final String qualifier = attrDesc.getQualifier();
final Object variantAttributeValue = getVariantAttributeValue(variant, qualifier);
if (!(filterKey.equals(qualifier)
&& (filterValue == variantAttributeValue
|| (filterValue != null && filterValue.equals(variantAttributeValue))))) {
add = false;
} else {
add =
true; // the current filter key and values matches for the current variant, go to
// next filter-element to check it.
break;
}
}
}
if (add) {
result.add(variant);
}
}
if (LOG.isDebugEnabled()) {
LOG.debug(result.size() + " matching variants have been found.");
}
return result;
}
/** {@inheritDoc} */
@Override
public void setVariantAttributesForVariantType(
final VariantTypeModel variantType,
final List<VariantAttributeDescriptorModel> newAttributes) {
if (getModelService().isNew(variantType)) {
throw new IllegalArgumentException(
"Given variantType " + variantType + " is new and hasn't been persisted yet");
}
final List<VariantAttributeDescriptorModel> oldAttributes =
getVariantAttributesForVariantType(variantType);
if (newAttributes != null && !newAttributes.isEmpty()) {
// prepare to remove List: existing Attributes which don't include the new (given attributes)
oldAttributes.removeAll(newAttributes);
}
if (!oldAttributes.isEmpty()) {
// if any of the attributes is an inherited attribute - it cannot be removed
for (final VariantAttributeDescriptorModel attr : oldAttributes) {
if (!variantType.equals(attr.getDeclaringEnclosingType())) {
throw new SystemException(
"attribute "
+ attr.getQualifier()
+ " is an inherited attribute of the variantType "
+ variantType.getCode()
+ " and can't be removed this way. Setting new Variant Attributes List don't forget to include the inherited variant attributes as well.");
}
}
if (LOG.isDebugEnabled()) {
LOG.debug(oldAttributes.size() + " old attributes will be removed from model...");
}
for (final VariantAttributeDescriptorModel attr : oldAttributes) {
getModelService().remove(attr);
}
}
// for all new Attributes check the enclosing type and set position for attribute order
if (newAttributes != null) {
int index = 0;
for (final VariantAttributeDescriptorModel attr : newAttributes) {
// check enclosing type
if (!variantType.equals(attr.getEnclosingType())) {
final String attrCode =
attr.getEnclosingType() == null ? null : attr.getEnclosingType().getCode();
throw new SystemException(
"attribute descriptor "
+ attr.getQualifier()
+ " has different enclosing type (expected "
+ variantType.getCode()
+ " but got "
+ attrCode
+ ")");
}
// set position for attribute order
attr.setPosition(Integer.valueOf(index++));
}
// save all attributes
getModelService().saveAll(newAttributes);
if (LOG.isDebugEnabled()) {
LOG.debug(
"Attributes have been assigned to the variantType="
+ variantType.getCode()
+ ". This type contains now "
+ newAttributes.size()
+ " attributes");
}
} else {
if (LOG.isDebugEnabled()) {
LOG.debug(
"No new attributes have been assigned to the variantType="
+ variantType.getCode()
+ ". The old attributes have been removed and the type does not contain any attributes at this moment");
}
}
}