private List<String> rebuildAttributes(SimpleFeatureType sft) {
Layer layer = applicationLayer.getService().getSingleLayer(applicationLayer.getLayerName());
List<String> attributesToRetain = new ArrayList<String>();
for (AttributeDescriptor ad : sft.getAttributes()) {
String name = ad.getName();
String fullName = sft.getId() + ":" + name;
// if attribute already added return.
if (attributesToRetain.contains(fullName)) {
return attributesToRetain;
}
attributesToRetain.add(fullName);
// Used for display in JSP
if (StringUtils.isNotBlank(ad.getAlias())) {
attributeAliases.put(fullName, ad.getAlias());
}
if (applicationLayer.getAttribute(sft, name) == null) {
ConfiguredAttribute ca = new ConfiguredAttribute();
// default visible if not geometry type
// and not a attribute of a related featuretype
boolean defaultVisible = true;
if (layer.getFeatureType().getId() != sft.getId()
|| AttributeDescriptor.GEOMETRY_TYPES.contains(ad.getType())) {
defaultVisible = false;
}
ca.setVisible(defaultVisible);
ca.setAttributeName(name);
ca.setFeatureType(sft);
applicationLayer.getAttributes().add(ca);
Stripersist.getEntityManager().persist(ca);
if (!"save".equals(getContext().getEventName())) {
String message = "Nieuw attribuut \"{0}\" gevonden in ";
if (layer.getFeatureType().getId() != sft.getId()) {
message += "gekoppelde ";
}
message += "attribuutbron";
if (layer.getFeatureType().getId() == sft.getId()) {
message += ": wordt zichtbaar na opslaan";
}
getContext().getMessages().add(new SimpleMessage(message, name));
}
}
}
if (sft.getRelations() != null) {
for (FeatureTypeRelation rel : sft.getRelations()) {
attributesToRetain.addAll(rebuildAttributes(rel.getForeignFeatureType()));
}
}
return attributesToRetain;
}
private Filter createFilter(SimpleFeature feature, FeatureTypeRelation rel) {
FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
List<Filter> filters = new ArrayList<Filter>();
for (FeatureTypeRelationKey key : rel.getRelationKeys()) {
AttributeDescriptor rightSide = key.getRightSide();
AttributeDescriptor leftSide = key.getLeftSide();
Object value = feature.getAttribute(leftSide.getName());
if (value == null) {
continue;
}
if (AttributeDescriptor.GEOMETRY_TYPES.contains(rightSide.getType())
&& AttributeDescriptor.GEOMETRY_TYPES.contains(leftSide.getType())) {
filters.add(ff.not(ff.isNull(ff.property(rightSide.getName()))));
filters.add(ff.intersects(ff.property(rightSide.getName()), ff.literal(value)));
} else {
filters.add(ff.equals(ff.property(rightSide.getName()), ff.literal(value)));
}
}
if (filters.size() > 1) {
return ff.and(filters);
} else if (filters.size() == 1) {
return filters.get(0);
} else {
return null;
}
}
private void makeAttributeJSONArray(final SimpleFeatureType layerSft) throws JSONException {
List<ConfiguredAttribute> cas = applicationLayer.getAttributes();
// Sort the attributes, by featuretype and the featuretyp
Collections.sort(
cas,
new Comparator<ConfiguredAttribute>() {
@Override
public int compare(ConfiguredAttribute o1, ConfiguredAttribute o2) {
if (o1.getFeatureType() == null) {
return -1;
}
if (o2.getFeatureType() == null) {
return 1;
}
if (o1.getFeatureType().getId().equals(layerSft.getId())) {
return -1;
}
if (o2.getFeatureType().getId().equals(layerSft.getId())) {
return 1;
}
return o1.getFeatureType().getId().compareTo(o2.getFeatureType().getId());
}
});
for (ConfiguredAttribute ca : cas) {
JSONObject j = ca.toJSONObject();
// Copy alias over from feature type
SimpleFeatureType sft = ca.getFeatureType();
if (sft == null) {
sft = layerSft;
}
AttributeDescriptor ad = sft.getAttribute(ca.getAttributeName());
j.put("alias", ad.getAlias());
j.put("featureTypeAttribute", ad.toJSONObject());
attributesJSON.put(j);
}
}
/**
* Get the features as JSONArray with the given params
*
* @param al The application layer(if there is a application layer)
* @param ft The featuretype that must be used to get the features
* @param fs The featureSource
* @param q The query
* @param sort The attribute name that is used to sort
* @param dir Sort direction (DESC or ASC)
* @return JSONArray with features.
* @throws IOException if any
* @throws JSONException if transforming to json fails
* @throws Exception if any
*/
public JSONArray getJSONFeatures(
ApplicationLayer al, SimpleFeatureType ft, FeatureSource fs, Query q, String sort, String dir)
throws IOException, JSONException, Exception {
Map<String, String> attributeAliases = new HashMap<String, String>();
if (!edit) {
for (AttributeDescriptor ad : ft.getAttributes()) {
if (ad.getAlias() != null) {
attributeAliases.put(ad.getName(), ad.getAlias());
}
}
}
List<String> propertyNames;
if (al != null) {
propertyNames = this.setPropertyNames(al, q, ft, edit);
} else {
propertyNames = new ArrayList<String>();
for (AttributeDescriptor ad : ft.getAttributes()) {
propertyNames.add(ad.getName());
}
}
if (sort != null) {
setSortBy(q, propertyNames, sort, dir);
}
/* Use the first property as sort field, otherwise geotools while give a error when quering
* a JDBC featureType without a primary key.
*/
else if (fs instanceof org.geotools.jdbc.JDBCFeatureSource && !propertyNames.isEmpty()) {
setSortBy(q, propertyNames.get(0), dir);
}
Integer start = q.getStartIndex();
if (start == null) {
start = 0;
}
boolean offsetSupported = fs.getQueryCapabilities().isOffsetSupported();
// if offSet is not supported, get more features (start + the wanted features)
if (!offsetSupported && q.getMaxFeatures() < MAX_FEATURES) {
q.setMaxFeatures(q.getMaxFeatures() + start);
}
FeatureIterator<SimpleFeature> it = null;
JSONArray features = new JSONArray();
try {
it = fs.getFeatures(q).features();
int featureIndex = 0;
while (it.hasNext()) {
SimpleFeature feature = it.next();
/* if offset not supported and there are more features returned then
* only get the features after index >= start*/
if (offsetSupported || featureIndex >= start) {
JSONObject j =
this.toJSONFeature(
new JSONObject(), feature, ft, al, propertyNames, attributeAliases, 0);
features.put(j);
}
featureIndex++;
}
} finally {
if (it != null) {
it.close();
}
fs.getDataStore().dispose();
}
return features;
}
/** Populate the json object with related featues */
private JSONObject populateWithRelatedFeatures(
JSONObject j, SimpleFeature feature, SimpleFeatureType ft, ApplicationLayer al, int index)
throws Exception {
if (ft.hasRelations()) {
JSONArray related_featuretypes = new JSONArray();
for (FeatureTypeRelation rel : ft.getRelations()) {
boolean isJoin = rel.getType().equals(FeatureTypeRelation.JOIN);
if (isJoin) {
FeatureSource foreignFs = rel.getForeignFeatureType().openGeoToolsFeatureSource(TIMEOUT);
FeatureIterator<SimpleFeature> foreignIt = null;
try {
Query foreignQ = new Query(foreignFs.getName().toString());
// create filter
Filter filter = createFilter(feature, rel);
if (filter == null) {
continue;
}
// if join only get 1 feature
foreignQ.setMaxFeatures(1);
foreignQ.setFilter(filter);
// set propertynames
List<String> propertyNames;
if (al != null) {
propertyNames = setPropertyNames(al, foreignQ, rel.getForeignFeatureType(), edit);
} else {
propertyNames = new ArrayList<String>();
for (AttributeDescriptor ad : rel.getForeignFeatureType().getAttributes()) {
propertyNames.add(ad.getName());
}
}
if (propertyNames.isEmpty()) {
// if there are no properties to retrieve just get out
continue;
}
// get aliases
Map<String, String> attributeAliases = new HashMap<String, String>();
if (!edit) {
for (AttributeDescriptor ad : rel.getForeignFeatureType().getAttributes()) {
if (ad.getAlias() != null) {
attributeAliases.put(ad.getName(), ad.getAlias());
}
}
}
// Get Feature and populate JSON object with the values.
foreignIt = foreignFs.getFeatures(foreignQ).features();
while (foreignIt.hasNext()) {
SimpleFeature foreignFeature = foreignIt.next();
// join it in the same json
j =
toJSONFeature(
j,
foreignFeature,
rel.getForeignFeatureType(),
al,
propertyNames,
attributeAliases,
index);
}
} finally {
if (foreignIt != null) {
foreignIt.close();
}
foreignFs.getDataStore().dispose();
}
} else {
Filter filter = createFilter(feature, rel);
if (filter == null) {
continue;
}
JSONObject related_ft = new JSONObject();
related_ft.put("filter", CQL.toCQL(filter));
related_ft.put("id", rel.getForeignFeatureType().getId());
related_ft.put("foreignFeatureTypeName", rel.getForeignFeatureType().getTypeName());
related_featuretypes.put(related_ft);
}
}
if (related_featuretypes.length() > 0) {
j.put("related_featuretypes", related_featuretypes);
}
}
return j;
}
