private UDFMetaData getUDF() {
UDFMetaData mergedUDF = new UDFMetaData();
if (this.udf != null) {
mergedUDF.addFunctions(this.udf);
}
for (Schema schema : store.getSchemas().values()) {
Collection<FunctionMethod> funcs = schema.getFunctions().values();
mergedUDF.addFunctions(schema.getName(), funcs);
}
if (this.cmr != null) {
// system scoped common source functions
for (ConnectorManager cm : this.cmr.getConnectorManagers().values()) {
List<FunctionMethod> funcs = cm.getPushDownFunctions();
mergedUDF.addFunctions(CoreConstants.SYSTEM_MODEL, funcs);
}
}
if (this.children != null) {
// udf model functions - also scoped to the model
for (CompositeVDB child : this.children.values()) {
UDFMetaData funcs = child.getUDF();
if (funcs != null) {
mergedUDF.addFunctions(funcs);
}
}
}
return mergedUDF;
}
private static TransformationMetadata buildTransformationMetaData(
VDBMetaData vdb,
LinkedHashMap<String, VDBResources.Resource> visibilityMap,
MetadataStore store,
UDFMetaData udf,
FunctionTree systemFunctions,
MetadataStore[] additionalStores) {
Collection<FunctionTree> udfs = new ArrayList<FunctionTree>();
if (udf != null) {
for (Map.Entry<String, UDFSource> entry : udf.getFunctions().entrySet()) {
udfs.add(new FunctionTree(entry.getKey(), entry.getValue(), true));
}
}
CompositeMetadataStore compositeStore = new CompositeMetadataStore(store);
for (MetadataStore s : additionalStores) {
compositeStore.merge(s);
for (Schema schema : s.getSchemas().values()) {
if (!schema.getFunctions().isEmpty()) {
UDFSource source = new UDFSource(schema.getFunctions().values());
if (udf != null) {
source.setClassLoader(udf.getClassLoader());
}
udfs.add(new FunctionTree(schema.getName(), source, true));
}
if (!schema.getProcedures().isEmpty()) {
FunctionTree ft = FunctionTree.getFunctionProcedures(schema);
if (ft != null) {
udfs.add(ft);
}
}
}
}
TransformationMetadata metadata =
new TransformationMetadata(vdb, compositeStore, visibilityMap, systemFunctions, udfs);
metadata.setUseOutputNames(false);
metadata.setWidenComparisonToString(WIDEN_COMPARISON_TO_STRING);
return metadata;
}
