1 files changed, 176 insertions, 0 deletions
diff --git a/sdo-java/branches/sdo-1.1-incubating/lib/src/main/java/org/apache/tuscany/sdo/spi/SDOHelperBase.java b/sdo-java/branches/sdo-1.1-incubating/lib/src/main/java/org/apache/tuscany/sdo/spi/SDOHelperBase.java
new file mode 100644
index 0000000000..ce3678d81f
--- /dev/null
+++ b/sdo-java/branches/sdo-1.1-incubating/lib/src/main/java/org/apache/tuscany/sdo/spi/SDOHelperBase.java
@@ -0,0 +1,176 @@
+/**
+ *
+ *  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.sdo.spi;
+
+/**
+ * Base class for an implementation of the SDOHelper and SDOHelper.MetaDataBuilder interfaces.
+ */
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.OutputStream;
+import java.math.BigDecimal;
+import java.math.BigInteger;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.tuscany.sdo.api.SDOHelper;
+import org.apache.tuscany.sdo.api.SDOUtil;
+import org.apache.tuscany.sdo.lib.SDOObjectInputStream;
+import org.apache.tuscany.sdo.lib.SDOObjectOutputStream;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.Property;
+import commonj.sdo.helper.HelperContext;
+
+public abstract class SDOHelperBase implements SDOHelper, SDOHelper.MetaDataBuilder
+{
+  public HelperContext createHelperContext()
+  {
+    return createHelperContext(false);
+  }
+  
+  public ObjectInputStream createObjectInputStream(InputStream inputStream, HelperContext helperContext) throws IOException
+  {
+    return new SDOObjectInputStream(inputStream, helperContext);
+  }
+  
+  public ObjectOutputStream createObjectOutputStream(OutputStream outputStream, HelperContext helperContext) throws IOException
+  {
+    return new SDOObjectOutputStream(outputStream, helperContext);
+  }
+  
+  public String getXPath(DataObject dataObject)
+  {
+    StringBuffer path = getXPath(dataObject, new StringBuffer(), dataObject);
+    return path.toString();
+  }
+
+  protected StringBuffer getXPath(DataObject dataObject, StringBuffer path, DataObject root)
+  {
+    DataObject container = dataObject.getContainer();
+    if (container == null)
+      return path;
+
+    if (container == root)
+      throw new IllegalStateException("There is a cycle in the containment hierarchy of " + root);
+
+    boolean first = path.length() == 0;
+    Property property = dataObject.getContainmentProperty();
+    if (SDOUtil.isMany(property, dataObject))
+    {
+      List list = container.getList(property);
+      int pos = list.indexOf(dataObject);
+      path.insert(0, property.getName() + "." + pos + (first ? "" : "/"));
+    }
+    else
+    {
+      path.insert(0, property.getName() + (first ? "" : "/"));
+    }
+
+    return getXPath(container, path, root);
+  }
+
+  public MetaDataBuilder getMetaDataBuilder()
+  {
+    return this;
+  }
+  
+  //Java instance class to SDO mappings (section 8.1 of the SDO spec)
+  protected static Map javaToSdoMappings = new HashMap();
+  static {
+    javaToSdoMappings.put(boolean.class, "Boolean");
+    javaToSdoMappings.put(byte.class, "Byte");
+    javaToSdoMappings.put(char.class, "Character");
+    javaToSdoMappings.put(Date.class, "Date");
+    javaToSdoMappings.put(BigDecimal.class, "Decimal");
+    javaToSdoMappings.put(double.class, "Double");
+    javaToSdoMappings.put(float.class, "Float");
+    javaToSdoMappings.put(int.class, "Int");
+    javaToSdoMappings.put(BigInteger.class, "Integer");
+    javaToSdoMappings.put(long.class, "Long");
+    javaToSdoMappings.put(Object.class, "Object");
+    javaToSdoMappings.put(short.class, "Short");
+    javaToSdoMappings.put(String.class, "String");
+    javaToSdoMappings.put(Boolean.class, "BooleanObject");
+    javaToSdoMappings.put(Byte.class, "ByteObject");
+    javaToSdoMappings.put(Character.class, "CharacterObject");
+    javaToSdoMappings.put(Double.class, "DoubleObject");
+    javaToSdoMappings.put(Float.class, "FloatObject");
+    javaToSdoMappings.put(Integer.class, "IntObject");
+    javaToSdoMappings.put(Long.class, "LongObject");
+    javaToSdoMappings.put(Short.class, "ShortObject");
+  }
+
+  //XSD to SDO mappings (section 9.4 of the SDO spec)
+  protected static Map xsdToSdoMappings = new HashMap();
+  static {
+    xsdToSdoMappings.put("anySimpleType", "Object");
+    xsdToSdoMappings.put("anyType", "DataObject");
+    xsdToSdoMappings.put("anyURI", "URI");
+    xsdToSdoMappings.put("base64Binary", "Bytes");
+    xsdToSdoMappings.put("boolean", "Boolean");
+    xsdToSdoMappings.put("byte", "Byte");
+    xsdToSdoMappings.put("date", "YearMonthDay");
+    xsdToSdoMappings.put("dateTime", "DateTime");
+    xsdToSdoMappings.put("decimal", "Decimal");
+    xsdToSdoMappings.put("double", "Double");
+    xsdToSdoMappings.put("duration", "Duration");
+    xsdToSdoMappings.put("ENTITIES", "Strings");
+    xsdToSdoMappings.put("ENTITY", "String");
+    xsdToSdoMappings.put("float", "Float");
+    xsdToSdoMappings.put("gDay", "Day");
+    xsdToSdoMappings.put("gMonth", "Month");
+    xsdToSdoMappings.put("gMonthDay", "MonthDay");
+    xsdToSdoMappings.put("gYear", "Year");
+    xsdToSdoMappings.put("gYearMonth", "YearMonth");
+    xsdToSdoMappings.put("hexBinary", "Bytes");
+    xsdToSdoMappings.put("ID","String");
+    xsdToSdoMappings.put("IDREF","String");
+    xsdToSdoMappings.put("IDREFS","Strings");
+    xsdToSdoMappings.put("int","Int");
+    xsdToSdoMappings.put("integer","Integer");
+    xsdToSdoMappings.put("language","String");
+    xsdToSdoMappings.put("long","Long");
+    xsdToSdoMappings.put("Name","String");
+    xsdToSdoMappings.put("NCName","String");
+    xsdToSdoMappings.put("negativeInteger","Integer");
+    xsdToSdoMappings.put("NMTOKEN","String");
+    xsdToSdoMappings.put("NMTOKENS","Strings");
+    xsdToSdoMappings.put("nonNegativeInteger","Integer");
+    xsdToSdoMappings.put("nonPositiveInteger","Integer");
+    xsdToSdoMappings.put("normalizedString","String");
+    xsdToSdoMappings.put("NOTATION","String");
+    xsdToSdoMappings.put("positiveInteger","Integer");
+    xsdToSdoMappings.put("QName","URI");
+    xsdToSdoMappings.put("short","Short");
+    xsdToSdoMappings.put("string","String");
+    xsdToSdoMappings.put("time","Time");
+    xsdToSdoMappings.put("token","String");
+    xsdToSdoMappings.put("unsignedByte","Short");
+    xsdToSdoMappings.put("unsignedInt","Long");
+    xsdToSdoMappings.put("unsignedLong","Integer");
+    xsdToSdoMappings.put("unsignedShort","Int");
+  }
+  
+}