1 files changed, 180 insertions, 0 deletions
diff --git a/das-java/tags/1.0-incubating-beta1-rc4/rdb/src/main/java/org/apache/tuscany/das/rdb/generator/impl/InsertGenerator.java b/das-java/tags/1.0-incubating-beta1-rc4/rdb/src/main/java/org/apache/tuscany/das/rdb/generator/impl/InsertGenerator.java
new file mode 100644
index 0000000000..9525f23454
--- /dev/null
+++ b/das-java/tags/1.0-incubating-beta1-rc4/rdb/src/main/java/org/apache/tuscany/das/rdb/generator/impl/InsertGenerator.java
@@ -0,0 +1,180 @@
+/*
+ * 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.generator.impl;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+
+import org.apache.log4j.Logger;
+import org.apache.tuscany.das.rdb.config.Column;
+import org.apache.tuscany.das.rdb.config.Relationship;
+import org.apache.tuscany.das.rdb.config.Table;
+import org.apache.tuscany.das.rdb.config.wrapper.MappingWrapper;
+import org.apache.tuscany.das.rdb.config.wrapper.RelationshipWrapper;
+import org.apache.tuscany.das.rdb.config.wrapper.TableWrapper;
+import org.apache.tuscany.das.rdb.impl.InsertCommandImpl;
+import org.apache.tuscany.das.rdb.impl.ParameterImpl;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.Property;
+
+public final class InsertGenerator extends BaseGenerator {
+
+    public static final InsertGenerator INSTANCE = new InsertGenerator();
+
+    private final Logger logger = Logger.getLogger(InsertGenerator.class);
+
+    private InsertGenerator() {
+        super();
+    }
+
+    public InsertCommandImpl getInsertCommand(MappingWrapper config, DataObject changedObject, Table t) {
+        List parameters = new ArrayList();
+        TableWrapper table = new TableWrapper(t);
+        StringBuffer statement = new StringBuffer("insert into ");
+        //JIRA-952
+        if(config.getConfig().isDatabaseSchemaNameSupported()){
+        	statement.append(t.getSchemaName()+"."+t.getTableName());
+        }
+        else{
+        statement.append(t.getTableName());
+        }
+        HashSet changedProperties = getAttributeProperties(changedObject, config, table);
+        Iterator i;
+        if ( changedProperties.isEmpty() ) {
+            i = changedObject.getType().getProperties().iterator();
+        } else {
+            i = changedProperties.iterator();
+        }
+
+        List attributes = new ArrayList();
+        List generatedKeys = new ArrayList();
+        while (i.hasNext()) {
+            Property attr = (Property) i.next();
+            if ( attr.getType().isDataType()) {
+                if (table.isGeneratedColumnProperty(attr.getName())) {
+                 generatedKeys.add(attr.getName());
+             } else {
+                 attributes.add(attr.getName());
+                    parameters.add(changedObject.getType().getProperty(attr.getName()));
+             }
+            }
+        }
+
+        statement.append("(");
+        Iterator attrs = attributes.iterator();
+        while (attrs.hasNext()) {
+            String name = (String) attrs.next();
+            statement.append("");
+            Column c = config.getColumnByPropertyName(t, name);
+            statement.append(c == null ? name : c.getColumnName());
+            if (attrs.hasNext()) {
+                statement.append(", ");
+            } else {
+                statement.append(")");
+            }
+        }
+
+        statement.append(" values (");
+        for (int idx = 1; idx <= attributes.size(); idx++) {
+            statement.append('?');
+            if (idx < attributes.size()) {
+                statement.append(", ");
+            } else {
+                statement.append(")");
+            }
+        }
+
+        InsertCommandImpl cmd = new InsertCommandImpl(statement.toString(), 
+                (String[]) generatedKeys.toArray(new String[0]));
+        Iterator params = parameters.iterator();
+        for (int idx = 1; params.hasNext(); idx++) {
+            Property property = (Property) params.next();
+            ParameterImpl p = new ParameterImpl();
+            p.setName(property.getName());
+            p.setType(property.getType());
+            p.setConverter(getConverter(table.getConverter(property.getName())));
+            p.setIndex(idx);
+            cmd.addParameter(p);
+
+        }
+        if (this.logger.isDebugEnabled()) {
+            this.logger.debug(statement.toString());
+        }
+
+        return cmd;
+
+    }
+
+    private HashSet getAttributeProperties(DataObject obj, MappingWrapper config, TableWrapper tw) {
+        HashSet fields = new HashSet();
+        Iterator i = obj.getType().getProperties().iterator();
+        while (i.hasNext()) {
+            Property p = (Property) i.next();
+            if (p.getType().isDataType()) {
+                if (obj.isSet(p)) {
+                    if (fields.add(p) == false) {
+                        throw new RuntimeException("Foreign key properties should not be set when the corrsponding relationship has changed");
+                    }
+                }
+            } else {
+                if (obj.isSet(p)) {
+                    Relationship relationship = config.getRelationshipByReference(p);
+                    if ((p.getOpposite() != null && p.getOpposite().isMany()) 
+                            || (hasState(tw, relationship, obj))) {
+                        RelationshipWrapper r = new RelationshipWrapper(relationship);
+                        Iterator keys = r.getForeignKeys().iterator();
+                        while (keys.hasNext()) {
+                            String key = (String) keys.next();
+                            String keyProperty = config.getColumnPropertyName(tw.getTableName(), key);
+                            Property keyProp = obj.getType().getProperty(keyProperty);
+                            if ( keyProp == null ) 
+                                throw new RuntimeException("Invalid foreign key column: " + key);
+                            if (fields.add(keyProp) == false) {
+                                throw new RuntimeException("Foreign key properties should not be set when the corresponding relationship has changed");
+                            }
+                        }
+                    }
+
+                }
+            }
+        }
+
+        return fields;
+
+    }
+
+    private boolean hasState(TableWrapper tw, Relationship rel, DataObject changedObject) {
+
+        if (!rel.isMany()) {
+                   
+            RelationshipWrapper rw = new RelationshipWrapper(rel);
+            if ((rel.getForeignKeyTable().equals(tw.getTableName())) 
+                    && (Collections.disjoint(tw.getPrimaryKeyProperties(), rw.getForeignKeys()))) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+}