1 files changed, 780 insertions, 0 deletions
diff --git a/sdo-java/branches/sdo-1.1-incubating/impl/src/main/java/org/apache/tuscany/sdo/util/VirtualSequence.java b/sdo-java/branches/sdo-1.1-incubating/impl/src/main/java/org/apache/tuscany/sdo/util/VirtualSequence.java
new file mode 100644
index 0000000000..a5982ceb35
--- /dev/null
+++ b/sdo-java/branches/sdo-1.1-incubating/impl/src/main/java/org/apache/tuscany/sdo/util/VirtualSequence.java
@@ -0,0 +1,780 @@
+/**
+ *
+ *  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.util;
+
+import java.util.Iterator;
+import java.util.List;
+
+import org.apache.tuscany.sdo.impl.ClassImpl;
+import org.eclipse.emf.common.util.EList;
+import org.eclipse.emf.ecore.EClass;
+import org.eclipse.emf.ecore.EStructuralFeature;
+import org.eclipse.emf.ecore.util.FeatureMapUtil;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.Property;
+import commonj.sdo.Sequence;
+
+/**
+ *  SDO Sequance implementation which delegates to a Collection of DataObject properties.
+ */
+public class VirtualSequence implements Sequence
+{
+  private final DataObject dataObject;
+  protected final List delegateProperties; // size > 1
+
+  public VirtualSequence(DataObject object)
+  {
+    dataObject = object;
+    delegateProperties = ((ClassImpl)dataObject.getType()).getVirtualSequenceProperties();
+  }
+  
+  static protected boolean isSequenceProperty(Object property)
+  {
+    return FeatureMapUtil.isFeatureMap((EStructuralFeature)property);
+  }
+  
+  public int size()
+  {
+    int size = 0;
+    for (Iterator iterator = delegateProperties.iterator() ; iterator.hasNext() ;)
+    {
+      Property property = (Property)iterator.next();
+      if (dataObject.isSet(property))
+        if (isSequenceProperty(property))
+          size += ((Sequence)dataObject.get(property)).size();
+        else if (property.isMany())
+          size += dataObject.getList(property).size();
+        else
+          ++size;
+    }
+    return size;
+  }
+
+  public Property getProperty(int index)
+  {
+    for (Iterator iterator = delegateProperties.iterator() ; iterator.hasNext() ;)
+    {
+      Property property = (Property)iterator.next();
+      if (dataObject.isSet(property))
+        if (isSequenceProperty(property))
+        {
+          Sequence sequence = (Sequence)dataObject.get(property);
+          int size = sequence.size();
+          if (index < size)
+            return sequence.getProperty(index);
+          index -= size;
+        }
+        else if (property.isMany())
+        {
+          int size = dataObject.getList(property).size();
+          if (index < size)
+            return property;
+          index -= size;
+        }
+        else if (index == 0)
+          return property;
+        else
+          --index;
+    }
+    throw new IndexOutOfBoundsException();
+  }
+
+  public Object getValue(int index)
+  {
+    for (Iterator iterator = delegateProperties.iterator() ; iterator.hasNext() ;)
+    {
+      Property property = (Property)iterator.next();
+      if (dataObject.isSet(property))
+        if (isSequenceProperty(property))
+        {
+          Sequence sequence = (Sequence)dataObject.get(property);
+          int size = sequence.size();
+          if (index < size)
+            return sequence.getValue(index);
+          index -= size;
+        }
+        else if (property.isMany())
+        {
+          List values = dataObject.getList(property);
+          int size = values.size();
+          if (index < size)
+            return values.get(index);
+          index -= size;
+        }
+        else if (index == 0)
+          return dataObject.get(property);
+        else
+          --index;
+    }
+    throw new IndexOutOfBoundsException();
+  }
+
+  public Object setValue(int index, Object value)
+  {
+    for (Iterator iterator = delegateProperties.iterator() ; iterator.hasNext() ;)
+    {
+      Property property = (Property)iterator.next();
+      if (dataObject.isSet(property))
+        if (isSequenceProperty(property))
+        {
+          Sequence sequence = (Sequence)dataObject.get(property);
+          int size = sequence.size();
+          if (index < size)
+            return sequence.setValue(index, value);
+          index -= size;
+        }
+        else if (property.isMany())
+        {
+          List values = dataObject.getList(property);
+          int size = values.size();
+          if (index < size)
+            return values.set(index, value);
+          index -= size;
+        }
+        else if (index == 0)
+        {
+          Object old = dataObject.get(property);  
+          dataObject.set(property, value);
+          return old;
+        }
+        else
+          --index;
+    }
+    throw new IndexOutOfBoundsException();
+  }
+  
+  boolean validate(EStructuralFeature feature, Object property)
+  {
+    return FeatureMapUtil.getValidator((EClass)dataObject.getType(), feature).isValid((EStructuralFeature)property);
+  }
+
+  boolean append(Property delegateProperty, Property property, Object value)
+  {
+    return ((Sequence)dataObject.get(delegateProperty)).add(property, value);
+  }
+  
+  boolean append(Property property, Object value)
+  {
+    return dataObject.getList(property).add(value);
+  }
+  
+  boolean set(Property property, Object value)
+  {
+    if (property.isMany())
+      return append(property, value);
+    dataObject.set(property, value);
+    return true;
+  }
+  
+  public final boolean add(Property p, Object value)
+  {
+    Property property;
+    int size = delegateProperties.size(), index = size;
+    do
+    {
+      property = (Property)delegateProperties.get(--index);
+      if (!dataObject.isSet(property))
+        continue;
+      EStructuralFeature feature = (EStructuralFeature)property;
+      if (FeatureMapUtil.isFeatureMap(feature))
+      {
+        if (validate(feature, p))
+          return append(property, p, value);
+      }
+      else if (property == p && property.isMany())
+        return append(property, value);
+      if (size == ++index)
+        return false;
+      property = (Property)delegateProperties.get(index);
+      break;
+    }
+    while (index != 0);
+    for (;;)
+    {
+      EStructuralFeature feature = (EStructuralFeature)property;
+      if (FeatureMapUtil.isFeatureMap(feature))
+      {
+        if (validate(feature, p))
+          return append(property, p, value);
+      }
+      else if (property == p)
+        return set(p, value);
+      if (size == ++index)
+        return false;
+      property = (Property)delegateProperties.get(index);
+    }
+  }
+
+  protected final Property property(String name)
+  {
+    return dataObject.getType().getProperty(name);
+  }
+
+  public boolean add(String propertyName, Object value)
+  {
+    return add(property(propertyName), value);
+  }
+
+  protected final Property property(int index)
+  {
+    return (Property)dataObject.getType().getProperties().get(index);
+  }
+
+  public boolean add(int propertyIndex, Object value)
+  {
+    return add(property(propertyIndex), value);
+  }
+  
+  void insert(Property property, Property p, Object value)
+  {
+    ((Sequence)dataObject.get(property)).add(0, p, value);
+  }
+  
+  void insert(Property property, Object value)
+  {
+    dataObject.getList(property).add(0, value);
+  }
+  
+  protected final int insert(Iterator iterator, Property p, Object value)
+  {
+    while (iterator.hasNext())
+    {
+      Property property = (Property)iterator.next();
+      EStructuralFeature feature = (EStructuralFeature)property;
+      if (dataObject.isSet(property))
+      {
+        if (FeatureMapUtil.isFeatureMap(feature))
+        {
+          if (!validate(feature, p))
+            return 2;
+          insert(property, p, value);
+          return 0;
+        }
+        if (property != p || !property.isMany())
+          return 2;
+        insert(property, value);
+        return 0;
+      }
+      if (FeatureMapUtil.isFeatureMap(feature))
+      {
+        if (validate(feature, p))
+        {
+          append(property, p, value);
+          return 0;
+        }
+      }
+      else if (property == p)
+      {
+        set(property, value);
+        return 0;
+      }
+    } // iterator.hasNext()
+    return 1;
+  }
+  
+  public final void add(int index, Property p, Object value)
+  {
+    Iterator iterator = delegateProperties.iterator();
+    if (index == 0)
+      switch (insert(iterator, p, value))
+      {
+        case 0:
+          return;
+        case 1:  
+          throw new IndexOutOfBoundsException();
+        default: // 2  
+          throw new IllegalArgumentException();
+      }
+    while (iterator.hasNext())
+    {
+      Property property = (Property)iterator.next();
+      if (dataObject.isSet(property))
+        if (isSequenceProperty(property))
+        {
+          Sequence sequence = (Sequence)dataObject.get(property);
+          int size = sequence.size();
+          if (index < size)
+          {
+            sequence.add(index, p, value);
+            return;
+          }
+          index -= size;
+          if (index != 0)
+            continue;
+          if (insert(iterator, p, value) != 0)
+            /*assert */sequence.add(p, value);
+          return;
+        } // sequence(property)
+        else if (property.isMany())
+        {
+          List values = dataObject.getList(property);
+          int size = values.size();
+          if (index < size)
+          {
+            values.add(index, value);
+            return;
+          }
+          index -= size;
+          if (index == 0 && property == p)
+          {
+            values.add(value);
+            return;
+          }
+        }
+        else if (index == 0)
+          throw new IllegalArgumentException();
+        else
+          --index;
+    }
+    throw new IndexOutOfBoundsException();
+  }
+
+  public void add(int index, String propertyName, Object value)
+  {
+    add(index, property(propertyName), value);
+  }
+
+  public void add(int index, int propertyIndex, Object value)
+  {
+    add(index, property(propertyIndex), value);
+  }
+
+  public final void addText(String text)
+  {
+    throw new IllegalArgumentException();
+  }
+
+  /**
+   * @deprecated
+   */
+  public void add(String text)
+  {
+    addText(text);
+  }
+
+  public final void addText(int index, String text)
+  {
+    throw new IllegalArgumentException();
+  }
+
+  /**
+   * @deprecated
+   */
+  public void add(int index, String text)
+  {
+    addText(index, text);
+  }
+
+  public void remove(int index)
+  {
+    for (Iterator iterator = delegateProperties.iterator() ; iterator.hasNext() ;)
+    {
+      Property property = (Property)iterator.next();
+      if (dataObject.isSet(property))
+        if (isSequenceProperty(property))
+        {
+          Sequence sequence = (Sequence)dataObject.get(property);
+          int size = sequence.size();
+          if (index < size)
+          {
+            sequence.remove(index);
+            return;
+          }
+          index -= size;
+        }
+        else if (property.isMany())
+        {
+          List values = dataObject.getList(property);
+          int size = values.size();
+          if (index < size)
+          {
+            values.remove(index);
+            return;
+          }
+          index -= size;
+        }
+        else if (index == 0)
+        {
+          dataObject.unset(property);
+          return;
+        }
+        else
+          --index;
+    }
+    throw new IndexOutOfBoundsException();
+  }
+
+  static private Object remove(Sequence sequence, int index)
+  {
+    Object value = sequence.getValue(index);
+    sequence.remove(index);
+    return value;
+  }
+  
+  static void move(Sequence fromSequence, int fromIndex, Sequence toSequence, int toIndex, Property property)
+  {
+    toSequence.add(toIndex, property, remove(fromSequence, fromIndex)); // removes containment
+  }
+  
+  static protected void move(Sequence fromSequence, int fromIndex, Sequence toSequence, int toIndex)
+  {
+    move(fromSequence, fromIndex, toSequence, toIndex, fromSequence.getProperty(fromIndex));
+  }
+  
+  static protected void add(Object value,List list,int index, int size)
+  {
+    if (++index == size)
+      /*assert */list.add(value);
+    else
+      list.add(index, value); // removes containment
+  }
+  
+  static protected void add(Property property, Object value, Sequence toSequence, int toIndex, int size)
+  {
+    if (++toIndex == size)
+      toSequence.add(property, value); // removes containment
+    else
+      toSequence.add(toIndex, property, value); // removes containment
+  }
+  
+  public void move(int toIndex, int fromIndex)
+  {
+    for (Iterator iterator = delegateProperties.iterator(); iterator.hasNext() ;)
+    {
+      Property property = (Property)iterator.next();
+      if (dataObject.isSet(property))
+        if (isSequenceProperty(property))
+        {
+          Sequence sequence = (Sequence)dataObject.get(property);
+          int size = sequence.size();
+          if (toIndex < size)
+          {
+            if (fromIndex < size)
+            {
+              sequence.move(toIndex, fromIndex);
+              return;
+            }
+            while (iterator.hasNext())
+            {
+              property = (Property)iterator.next();
+              if (!dataObject.isSet(property))
+                continue;
+              fromIndex -= size;
+              if (isSequenceProperty(property))
+              {
+                Sequence fromSequence = (Sequence)dataObject.get(property);
+                size = fromSequence.size();
+                if (fromIndex >= size)
+                  continue;
+                move(fromSequence, fromIndex, sequence, toIndex);
+                return;
+              }
+              if (property.isMany())
+              {
+                List list = dataObject.getList(property);
+                size = list.size();
+                if (fromIndex >= size)
+                  continue;
+                sequence.add(toIndex, property, list.remove(fromIndex)); // removes containment
+                return;
+              }
+              if (fromIndex == 0)
+              {
+                sequence.add(toIndex, property, dataObject.get(property)); // removes containment
+                dataObject.unset(property);
+                return;
+              }
+              size = 1;
+            } // iterator.hasNext()
+            break;
+          } // toIndex < size
+          if (fromIndex < size)
+          {
+            while (iterator.hasNext())
+            {
+              property = (Property)iterator.next();
+              if (!dataObject.isSet(property))
+                continue;
+              toIndex -= size;
+              if (isSequenceProperty(property))
+              {
+                Sequence toSequence = (Sequence)dataObject.get(property);
+                size = toSequence.size();
+                if (toIndex >= size)
+                  continue;
+                if (++toIndex == size)
+                  toSequence.add(sequence.getProperty(fromIndex), remove(sequence, fromIndex)); // Java pushes stack from left to right
+                    // removes containment
+                else
+                  move(sequence, fromIndex, toSequence, toIndex);
+                return;
+              }
+              if (property.isMany())
+              {
+                List list = dataObject.getList(property);
+                size = list.size();
+                if (toIndex >= size)
+                  continue;
+                if (sequence.getProperty(fromIndex) != property)
+                  throw new IllegalArgumentException();
+                add(remove(sequence, fromIndex), list, toIndex, size);
+                return;
+              }
+              if (toIndex == 0)
+              {
+                while (iterator.hasNext())
+                {
+                  Property p = sequence.getProperty(fromIndex);
+                  property = (Property)iterator.next();
+                  EStructuralFeature feature = (EStructuralFeature)property;
+                  if (dataObject.isSet(property))
+                  {
+                    if (FeatureMapUtil.isFeatureMap(feature))
+                    {
+                      /*if (!validate(feature, p))
+                        throw new IllegalArgumentException(); */
+                      move(sequence, fromIndex, (Sequence)dataObject.get(property), 0, p);
+                      return;
+                    }
+                    if (property != p || !property.isMany())
+                      throw new IllegalArgumentException();
+                    insert(property, remove(sequence, fromIndex)); // removes containment
+                    return;
+                  }
+                  if (FeatureMapUtil.isFeatureMap(feature))
+                  {
+                    if (validate(feature, p))
+                    {
+                      append(property, p, remove(sequence, fromIndex)); // removes containment
+                      return;
+                    }
+                  }
+                  else if (property == p)
+                  {
+                    set(property, remove(sequence, fromIndex));
+                    return;
+                  }
+                } // iterator.hasNext()
+                break;
+              }
+              size = 1;
+            } // iterator.hasNext()
+            break;
+          } // fromIndex < size
+          toIndex -= size;
+          fromIndex -= size;
+        } // sequence(property)
+        else if (property.isMany())
+        {
+          List list = dataObject.getList(property);
+          int size = list.size();
+          if (toIndex < size)
+          {
+            if (fromIndex < size)
+            {
+              ((EList)list).move(toIndex, fromIndex);
+              return;
+            }
+            while (iterator.hasNext())
+            {
+              Property p = (Property)iterator.next();
+              if (!dataObject.isSet(p))
+                continue;
+              fromIndex -= size;
+              if (isSequenceProperty(p))
+              {
+                Sequence fromSequence = (Sequence)dataObject.get(p);
+                size = fromSequence.size();
+                if (fromIndex >= size)
+                  continue;
+                if (fromSequence.getProperty(fromIndex) != property)
+                  throw new IllegalArgumentException();
+                list.add(toIndex, remove(fromSequence, fromIndex)); // removes containment
+                return;
+              }
+              if (p.isMany())
+              {
+                List l = dataObject.getList(p);
+                size = l.size();
+                if (fromIndex >= size)
+                  continue;
+                /*if (p != property)
+                  throw new IllegalArgumentException(); */
+                list.add(toIndex, l.remove(fromIndex)); // removes containment
+                return;
+              }
+              if (fromIndex == 0)
+              {
+                /*if (p != property)
+                throw new IllegalArgumentException(); */
+                list.add(toIndex, dataObject.get(p)); // removes containment
+                dataObject.unset(p);
+                return;
+              }
+              size = 1;
+            } // iterator.hasNext()
+            break;
+          } // toIndex < size
+          if (fromIndex < size)
+          {
+            while (iterator.hasNext())
+            {
+              Property p = (Property)iterator.next();
+              if (!dataObject.isSet(p))
+                continue;
+              toIndex -= size;
+              if (isSequenceProperty(p))
+              {
+                Sequence toSequence = (Sequence)dataObject.get(p);
+                size = toSequence.size();
+                if (toIndex >= size)
+                  continue;
+                add(property, list.remove(fromIndex), toSequence, toIndex, size);
+                return;
+              }
+              if (p.isMany())
+              {
+                List l = dataObject.getList(p);
+                size = l.size();
+                if (toIndex >= size)
+                  continue;
+                /*if (property != p)
+                  throw new IllegalArgumentException(); */
+                add(list.remove(fromIndex), l, toIndex, size);
+                return;
+              }
+              if (toIndex == 0)
+              {
+                while (iterator.hasNext())
+                {
+                  p = (Property)iterator.next();
+                  EStructuralFeature feature = (EStructuralFeature)p;
+                  if (dataObject.isSet(p))
+                  {
+                    if (FeatureMapUtil.isFeatureMap(feature))
+                    {
+                      /*if (!validate(feature, property))
+                        throw new IllegalArgumentException(); */
+                      insert(p, property, list.remove(fromIndex));
+                      return;
+                    }
+                    if (/*p != property || */!p.isMany())
+                      throw new IllegalArgumentException();
+                    insert(p, list.remove(fromIndex)); // removes containment
+                    return;
+                  }
+                  if (FeatureMapUtil.isFeatureMap(feature))
+                  {
+                    if (!validate(feature, property))
+                      continue;
+                    append(p, property, list.remove(fromIndex)); // removes containment
+                    return;
+                  }
+                  else if (p == property)
+                  {
+                    set(p, list.remove(fromIndex));
+                    return;
+                  }
+                } // iterator.hasNext()
+                break;
+              } // toIndex == 0
+              size = 1;
+            } // iterator.hasNext()
+            break;
+          } // fromIndex < size
+          toIndex -= size;
+          fromIndex -= size;
+        } // property.isMany()
+        else if (toIndex == 0)
+          throw new IllegalArgumentException();
+        else if (fromIndex == 0)
+        {
+          for (int size = 1; iterator.hasNext() ;)
+          {
+            Property p = (Property)iterator.next();
+            if (!dataObject.isSet(p))
+              continue;
+            toIndex -= size;
+            if (isSequenceProperty(p))
+            {
+              Sequence toSequence = (Sequence)dataObject.get(p);
+              size = toSequence.size();
+              if (toIndex >= size)
+                continue;
+              add(property, dataObject.get(property), toSequence, toIndex, size);
+              dataObject.unset(property);
+              return;
+            }
+            if (p.isMany())
+            {
+              List l = dataObject.getList(p);
+              size = l.size();
+              if (toIndex >= size)
+                continue;
+              /*if (property != p)
+                throw new IllegalArgumentException(); */
+              add(dataObject.get(property), l, toIndex, size);
+              dataObject.unset(property);
+              return;
+            }
+            if (toIndex == 0)
+            {
+              while (iterator.hasNext())
+              {
+                p = (Property)iterator.next();
+                EStructuralFeature feature = (EStructuralFeature)p;
+                if (dataObject.isSet(p))
+                  if (FeatureMapUtil.isFeatureMap(feature))
+                    /*if (!validate(feature, property))
+                      throw new IllegalArgumentException(); */
+                    insert(p, property, dataObject.get(property));
+                  else if (/*p == property && */p.isMany())
+                    insert(p, dataObject.get(property)); // removes containment
+                  else
+                    throw new IllegalArgumentException();
+                else if (FeatureMapUtil.isFeatureMap(feature))
+                {
+                  if (!validate(feature, property))
+                    continue;
+                  append(p, property, dataObject.get(property)); // removes containment
+                }
+                else if (p == property)
+                  set(p, dataObject.get(property));
+                else
+                  continue;
+                dataObject.unset(property);
+                return;
+              } // iterator.hasNext()
+              break;
+            } // toIndex == 0
+            size = 1;
+          } // iterator.hasNext()
+          break;
+        } // fromIndex == 0
+        else
+        {
+          --toIndex;
+          --fromIndex;
+        }
+    }
+    throw new IndexOutOfBoundsException();
+  }
+}