@Override
public VDBMetaData getVDB() {
ConnectionImpl connection = null;
if (this.vdb == null) {
try {
connection = getConnection();
LocalServerConnection lsc = (LocalServerConnection) connection.getServerConnection();
VDBMetaData vdb = lsc.getWorkContext().getVDB();
if (vdb == null) {
throw new NotFoundException(
ODataPlugin.Util.gs(ODataPlugin.Event.TEIID16001, this.vdbName, this.vdbVersion));
}
this.vdb = vdb;
} catch (SQLException e) {
throw new ServerErrorException(e.getMessage(), e);
} finally {
if (connection != null) {
try {
connection.close();
} catch (SQLException e) {
}
}
}
}
return this.vdb;
}
private static void buildEntityTypes(
MetadataStore metadataStore, List<EdmSchema.Builder> edmSchemas) {
for (Schema schema : metadataStore.getSchemaList()) {
List<EdmEntitySet.Builder> entitySets = new ArrayList<EdmEntitySet.Builder>();
List<EdmEntityType.Builder> entityTypes = new ArrayList<EdmEntityType.Builder>();
for (Table table : schema.getTables().values()) {
KeyRecord primaryKey = table.getPrimaryKey();
List<KeyRecord> uniques = table.getUniqueKeys();
if (primaryKey == null && uniques.isEmpty()) {
LogManager.logDetail(
LogConstants.CTX_ODATA,
ODataPlugin.Util.gs(ODataPlugin.Event.TEIID16002, table.getFullName()));
continue;
}
EdmEntityType.Builder entityType =
EdmEntityType.newBuilder().setName(table.getName()).setNamespace(schema.getName());
// adding key
if (primaryKey != null) {
for (Column c : primaryKey.getColumns()) {
entityType.addKeys(c.getName());
}
} else {
for (Column c : uniques.get(0).getColumns()) {
entityType.addKeys(c.getName());
}
}
// adding properties
for (Column c : table.getColumns()) {
EdmProperty.Builder property =
EdmProperty.newBuilder(c.getName())
.setType(ODataTypeManager.odataType(c.getDatatype().getRuntimeTypeName()))
.setNullable(c.getNullType() == NullType.Nullable);
if (c.getDatatype()
.getRuntimeTypeName()
.equals(DataTypeManager.DefaultDataTypes.STRING)) {
property.setFixedLength(c.isFixedLength()).setMaxLength(c.getLength()).setUnicode(true);
}
entityType.addProperties(property);
}
// entity set one for one entity type
EdmEntitySet.Builder entitySet =
EdmEntitySet.newBuilder().setName(table.getName()).setEntityType(entityType);
entityType.setNamespace(schema.getName());
entitySets.add(entitySet);
// add enitity types for entity schema
entityTypes.add(entityType);
}
// entity container is holder entity sets, association sets, function imports
EdmEntityContainer.Builder entityContainer =
EdmEntityContainer.newBuilder()
.setName(schema.getName())
.setIsDefault(false)
.addEntitySets(entitySets);
// build entity schema
EdmSchema.Builder modelSchema =
EdmSchema.newBuilder()
.setNamespace(schema.getName())
.addEntityTypes(entityTypes)
.addEntityContainers(entityContainer);
edmSchemas.add(modelSchema);
}
}