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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.tuscany.das.rdb.graphbuilder.impl;
+
+import java.util.Iterator;
+
+import org.apache.log4j.Logger;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.Property;
+import commonj.sdo.Type;
+import commonj.sdo.helper.DataFactory;
+
+public class DataObjectMaker {
+
+ private final DataObject rootObject;
+
+ private final Logger logger = Logger.getLogger(DataObjectMaker.class);
+
+ public DataObjectMaker(DataObject root) {
+ this.rootObject = root;
+ }
+
+ /**
+ * @param tableData
+ * @return
+ */
+ public DataObject createAndAddDataObject(TableData tableData, ResultMetadata resultMetadata) {
+ // Get a Type from the package and create a standalone DataObject
+
+ if (this.logger.isDebugEnabled()) {
+ this.logger.debug("Looking for Type for " + tableData.getTableName());
+ }
+
+ Type tableClass = findTableTypeByPropertyName(tableData.getTableName());
+
+ if (tableClass == null) {
+ throw new RuntimeException("An SDO Type with name " + tableData.getTableName() + " was not found");
+ }
+
+ DataObject obj = DataFactory.INSTANCE.create(tableClass);
+
+ // Now, check to see if the root data object has a containment reference
+ // to this EClass. If so, add it to the graph. If not, it will be taken
+ // care
+ // of when we process relationships
+
+ Iterator i = this.rootObject.getType().getProperties().iterator();
+ while (i.hasNext()) {
+ Property p = (Property) i.next();
+
+ if (p.isContainment() && p.getType().equals(tableClass)) {
+ if (p.isMany()) {
+ rootObject.getList(p).add(obj);
+ } else {
+ this.rootObject.set(p, obj);
+ }
+ }
+
+ }
+
+ Iterator columnNames = resultMetadata.getPropertyNames(tableData.getTableName()).iterator();
+ while (columnNames.hasNext()) {
+ String propertyName = (String) columnNames.next();
+
+ Property p = findProperty(obj.getType(), propertyName);
+ if (p == null) {
+ throw new RuntimeException("Type " + obj.getType().getName()
+ + " does not contain a property named " + propertyName);
+ }
+
+ Object value = tableData.getColumnData(propertyName);
+
+ obj.set(p, value);
+ }
+
+ return obj;
+ }
+
+ // temporary, ignoring case
+ private Property findProperty(Type type, String columnName) {
+ Iterator properties = type.getProperties().iterator();
+ while (properties.hasNext()) {
+ Property p = (Property) properties.next();
+ if (columnName.equalsIgnoreCase(p.getName())) {
+ return p;
+ }
+ }
+ return null;
+ }
+
+ private Type findTableTypeByPropertyName(String tableName) {
+ Iterator i = rootObject.getType().getProperties().iterator();
+ while (i.hasNext()) {
+ Property p = (Property) i.next();
+ if (tableName.equals(p.getType().getName())) {
+ return p.getType();
+ }
+ }
+
+ return null;
+ }
+
+}