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diff --git a/das-java/tags/1.0-incubating-beta1-rc2/rdb/src/main/java/org/apache/tuscany/das/rdb/graphbuilder/impl/ResultSetProcessor.java b/das-java/tags/1.0-incubating-beta1-rc2/rdb/src/main/java/org/apache/tuscany/das/rdb/graphbuilder/impl/ResultSetProcessor.java
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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.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.Iterator;
+
+import org.apache.log4j.Logger;
+
+import commonj.sdo.DataObject;
+
+/**
+ *
+ * A ResultSetProcessor is used to transform the data in a ResultSet into a set of inter-related EDataObjects.
+ */
+public class ResultSetProcessor {
+ private final Logger logger = Logger.getLogger(ResultSetProcessor.class);
+
+ private TableRegistry registry;
+
+ private GraphBuilderMetadata metadata;
+
+ private final DataObjectMaker doMaker;
+
+ public ResultSetProcessor(DataObject g, GraphBuilderMetadata gbmd) {
+
+ this.metadata = gbmd;
+ if (metadata.getRelationships().size() == 0) {
+ registry = new SingleTableRegistry();
+ } else {
+ registry = new MultiTableRegistry();
+ }
+
+ doMaker = new DataObjectMaker(g);
+
+ if (this.logger.isDebugEnabled()) {
+ this.logger.debug(metadata);
+ }
+
+ }
+
+ /**
+ * Process the ResultSet. For each row in the ResultSet, a
+ *
+ * @link ResultSetRow object will be created to represent the row as a set of EDataObjects. Then,
+ * the relevant relationships will be constructed
+ * between each object in the
+ * @link ResultSetRow.
+ *
+ * @param start
+ * @param end
+ */
+ public void processResults(int start, int end) throws SQLException {
+
+ Iterator i = metadata.getResultMetadata().iterator();
+ while (i.hasNext()) {
+ ResultMetadata resultMetadata = (ResultMetadata) i.next();
+ ResultSet results = resultMetadata.getResultSet();
+
+ processResultSet(results, resultMetadata, start, end);
+
+ // TODO These statements HAVE to be closed or we will have major problems
+ // results.getStatement().close();
+ results.close();
+ }
+
+ }
+
+ private void processResultSet(ResultSet rs, ResultMetadata rsMetadata, int start, int end) throws SQLException {
+
+ if (rs.getType() == ResultSet.TYPE_FORWARD_ONLY) {
+ while (rs.next() && start < end) {
+ ResultSetRow rsr = new ResultSetRow(rs, rsMetadata);
+ addRowToGraph(rsr, rsMetadata);
+ ++start;
+ }
+ } else {
+ while (rs.absolute(start) && start < end) {
+ ResultSetRow rsr = new ResultSetRow(rs, rsMetadata);
+ addRowToGraph(rsr, rsMetadata);
+ ++start;
+ }
+ }
+ }
+
+ /**
+ * @param row
+ * @param resultMetadata
+ */
+ private void addRowToGraph(ResultSetRow row, ResultMetadata resultMetadata) {
+ RowObjects tableObjects = new RowObjects(metadata, registry);
+ Iterator tables = row.getAllTableData().iterator();
+ while (tables.hasNext()) {
+ TableData rawDataFromRow = (TableData) tables.next();
+
+ if (!rawDataFromRow.hasValidPrimaryKey()) {
+ continue;
+ }
+
+ String tableName = rawDataFromRow.getTableName();
+ DataObject tableObject = registry.get(tableName, rawDataFromRow.getPrimaryKeyValues());
+ if (tableObject == null) {
+ tableObject = doMaker.createAndAddDataObject(rawDataFromRow, resultMetadata);
+
+ if (this.logger.isDebugEnabled()) {
+ this.logger.debug("Putting table " + tableName + " with PK "
+ + rawDataFromRow.getPrimaryKeyValues() + " into registry");
+ }
+
+ registry.put(tableName, rawDataFromRow.getPrimaryKeyValues(), tableObject);
+ }
+ tableObjects.put(tableName, tableObject);
+ }
+
+ tableObjects.processRelationships();
+
+ }
+
+}