/**
    * This file Copyright (c) 2011 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.jcr.wrapper;
  
  import java.io.InputStream;
  import java.math.BigDecimal;
  import java.util.Calendar;
  
  import javax.jcr.AccessDeniedException;
  import javax.jcr.Binary;
  import javax.jcr.InvalidItemStateException;
  import javax.jcr.InvalidLifecycleTransitionException;
  import javax.jcr.Item;
  import javax.jcr.ItemExistsException;
  import javax.jcr.ItemNotFoundException;
  import javax.jcr.ItemVisitor;
  import javax.jcr.MergeException;
  import javax.jcr.NoSuchWorkspaceException;
  import javax.jcr.Node;
  import javax.jcr.NodeIterator;
  import javax.jcr.PathNotFoundException;
  import javax.jcr.Property;
  import javax.jcr.PropertyIterator;
  import javax.jcr.ReferentialIntegrityException;
  import javax.jcr.RepositoryException;
  import javax.jcr.Session;
  import javax.jcr.UnsupportedRepositoryOperationException;
  import javax.jcr.Value;
  import javax.jcr.ValueFormatException;
  import javax.jcr.lock.Lock;
  import javax.jcr.lock.LockException;
  import javax.jcr.nodetype.ConstraintViolationException;
  import javax.jcr.nodetype.NoSuchNodeTypeException;
  import javax.jcr.nodetype.NodeDefinition;
  import javax.jcr.nodetype.NodeType;
  import javax.jcr.version.ActivityViolationException;
  import javax.jcr.version.Version;
  import javax.jcr.version.VersionException;
  import javax.jcr.version.VersionHistory;
  
  /**
   * Wrapper for JCR node.
   *
   * @version $Id$
   */
  public abstract class DelegateNodeWrapper implements Node, Cloneable {
  
      protected Node wrapped;
  
      protected DelegateNodeWrapper() {
      }
  
      protected DelegateNodeWrapper(Node node) {
          setWrappedNode(node);
      }
  
      public Node getWrappedNode() {
          return this.wrapped;
      }
  
      public void setWrappedNode(Node node) {
          this.wrapped = node;
      }
  
      @Override
      public String toString() {
          return wrapped != null ? wrapped.toString() : "";
      }
 
     /////////////
     //
     //  Delegating method stubs
     //
     /////////////
 
     @Override
     public void addMixin(String mixinName) throws NoSuchNodeTypeException, VersionException, ConstraintViolationException, LockException, RepositoryException {
         getWrappedNode().addMixin(mixinName);
     }
 
     @Override
     public Node addNode(String relPath) throws ItemExistsException, PathNotFoundException, VersionException, ConstraintViolationException, LockException, RepositoryException {
         return getWrappedNode().addNode(relPath);
     }
 
     @Override
     public Node addNode(String relPath, String primaryNodeTypeName) throws ItemExistsException, PathNotFoundException, NoSuchNodeTypeException, LockException, VersionException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().addNode(relPath, primaryNodeTypeName);
     }
 
     @Override
     public boolean canAddMixin(String mixinName) throws NoSuchNodeTypeException, RepositoryException {
         return getWrappedNode().canAddMixin(mixinName);
     }
 
     @Override
     public void cancelMerge(Version version) throws VersionException, InvalidItemStateException, UnsupportedRepositoryOperationException, RepositoryException {
         getWrappedNode().cancelMerge(version);
     }
 
     @Override
     public Version checkin() throws VersionException, UnsupportedRepositoryOperationException, InvalidItemStateException, LockException, RepositoryException {
         return getWrappedNode().checkin();
     }
 
     @Override
     public void checkout() throws UnsupportedRepositoryOperationException, LockException, ActivityViolationException, RepositoryException {
         getWrappedNode().checkout();
     }
 
     @Override
     public void doneMerge(Version version) throws VersionException, InvalidItemStateException, UnsupportedRepositoryOperationException, RepositoryException {
 
     }
 
     @Override
     public void followLifecycleTransition(String transition) throws UnsupportedRepositoryOperationException, InvalidLifecycleTransitionException, RepositoryException {
         getWrappedNode().followLifecycleTransition(transition);
     }
 
     @Override
     public String[] getAllowedLifecycleTransistions() throws UnsupportedRepositoryOperationException, RepositoryException {
         return getWrappedNode().getAllowedLifecycleTransistions();
     }
 
     @Override
     public Version getBaseVersion() throws UnsupportedRepositoryOperationException, RepositoryException {
         return getWrappedNode().getBaseVersion();
     }
 
     @Override
     public String getCorrespondingNodePath(String workspaceName) throws ItemNotFoundException, NoSuchWorkspaceException, AccessDeniedException, RepositoryException {
         return getWrappedNode().getCorrespondingNodePath(workspaceName);
     }
 
     @Override
     public NodeDefinition getDefinition() throws RepositoryException {
         return getWrappedNode().getDefinition();
     }
 
     @Override
     public String getIdentifier() throws RepositoryException {
         return getWrappedNode().getIdentifier();
     }
 
     @Override
     public int getIndex() throws RepositoryException {
         return getWrappedNode().getIndex();
     }
 
     @Override
     public Lock getLock() throws UnsupportedRepositoryOperationException, LockException, AccessDeniedException, RepositoryException {
         return getWrappedNode().getLock();
     }
 
     @Override
     public NodeType[] getMixinNodeTypes() throws RepositoryException {
         return getWrappedNode().getMixinNodeTypes();
     }
 
     @Override
     public Node getNode(String relPath) throws PathNotFoundException, RepositoryException {
         return getWrappedNode().getNode(relPath);
     }
 
     @Override
     public NodeIterator getNodes() throws RepositoryException {
         return getWrappedNode().getNodes();
     }
 
     @Override
     public NodeIterator getNodes(String namePattern) throws RepositoryException {
         return getWrappedNode().getNodes(namePattern);
     }
 
     @Override
     public NodeIterator getNodes(String[] nameGlobs) throws RepositoryException {
         return getWrappedNode().getNodes(nameGlobs);
     }
 
     @Override
     public Item getPrimaryItem() throws ItemNotFoundException, RepositoryException {
         return getWrappedNode().getPrimaryItem();
     }
 
     @Override
     public NodeType getPrimaryNodeType() throws RepositoryException {
         return getWrappedNode().getPrimaryNodeType();
     }
 
     @Override
     public PropertyIterator getProperties() throws RepositoryException {
         return getWrappedNode().getProperties();
     }
 
     @Override
     public PropertyIterator getProperties(String namePattern) throws RepositoryException {
         return getWrappedNode().getProperties(namePattern);
     }
 
     @Override
     public PropertyIterator getProperties(String[] nameGlobs) throws RepositoryException {
         return getWrappedNode().getProperties(nameGlobs);
     }
 
     @Override
     public Property getProperty(String relPath) throws PathNotFoundException, RepositoryException {
         return getWrappedNode().getProperty(relPath);
     }
 
     @Override
     public PropertyIterator getReferences() throws RepositoryException {
         return getWrappedNode().getReferences();
     }
 
     @Override
     public PropertyIterator getReferences(String name) throws RepositoryException {
         return getWrappedNode().getReferences(name);
     }
 
     @Override
     public NodeIterator getSharedSet() throws RepositoryException {
         return getWrappedNode().getSharedSet();
     }
 
     @Override
     public String getUUID() throws UnsupportedRepositoryOperationException, RepositoryException {
         return getWrappedNode().getUUID();
     }
 
     @Override
     public VersionHistory getVersionHistory() throws UnsupportedRepositoryOperationException, RepositoryException {
         return getWrappedNode().getVersionHistory();
     }
 
     @Override
     public PropertyIterator getWeakReferences() throws RepositoryException {
         return getWrappedNode().getWeakReferences();
     }
 
     @Override
     public PropertyIterator getWeakReferences(String name) throws RepositoryException {
         return getWrappedNode().getWeakReferences(name);
     }
 
     @Override
     public boolean hasNode(String relPath) throws RepositoryException {
         return getWrappedNode().hasNode(relPath);
     }
 
     @Override
     public boolean hasNodes() throws RepositoryException {
         return getWrappedNode().hasNodes();
     }
 
     @Override
     public boolean hasProperties() throws RepositoryException {
         return getWrappedNode().hasProperties();
     }
 
     @Override
     public boolean hasProperty(String relPath) throws RepositoryException {
         return getWrappedNode().hasProperty(relPath);
     }
 
     @Override
     public boolean holdsLock() throws RepositoryException {
         return getWrappedNode().holdsLock();
     }
 
     @Override
     public boolean isCheckedOut() throws RepositoryException {
         return getWrappedNode().isCheckedOut();
     }
 
     @Override
     public boolean isLocked() throws RepositoryException {
         return getWrappedNode().isLocked();
     }
 
     @Override
     public boolean isNodeType(String nodeTypeName) throws RepositoryException {
         return getWrappedNode().isNodeType(nodeTypeName);
     }
 
     @Override
     public Lock lock(boolean isDeep, boolean isSessionScoped) throws UnsupportedRepositoryOperationException, LockException, AccessDeniedException, InvalidItemStateException, RepositoryException {
         return getWrappedNode().lock(isDeep, isSessionScoped);
     }
 
     @Override
     public NodeIterator merge(String srcWorkspace, boolean bestEffort) throws NoSuchWorkspaceException, AccessDeniedException, MergeException, LockException, InvalidItemStateException, RepositoryException {
         return getWrappedNode().merge(srcWorkspace, bestEffort);
     }
 
     @Override
     public void orderBefore(String srcChildRelPath, String destChildRelPath) throws UnsupportedRepositoryOperationException, VersionException, ConstraintViolationException, ItemNotFoundException, LockException, RepositoryException {
         getWrappedNode().orderBefore(srcChildRelPath, destChildRelPath);
     }
 
     @Override
     public void removeMixin(String mixinName) throws NoSuchNodeTypeException, VersionException, ConstraintViolationException, LockException, RepositoryException {
         getWrappedNode().removeMixin(mixinName);
     }
 
     @Override
     public void removeShare() throws VersionException, LockException, ConstraintViolationException, RepositoryException {
         getWrappedNode().removeShare();
     }
 
     @Override
     public void removeSharedSet() throws VersionException, LockException, ConstraintViolationException, RepositoryException {
         getWrappedNode().removeSharedSet();
     }
 
     @Override
     public void restore(String versionName, boolean removeExisting) throws VersionException, ItemExistsException, UnsupportedRepositoryOperationException, LockException, InvalidItemStateException, RepositoryException {
         getWrappedNode().restore(versionName, removeExisting);
     }
 
     @Override
     public void restore(Version version, boolean removeExisting) throws VersionException, ItemExistsException, InvalidItemStateException, UnsupportedRepositoryOperationException, LockException, RepositoryException {
         getWrappedNode().restore(version, removeExisting);
     }
 
     @Override
     public void restore(Version version, String relPath, boolean removeExisting) throws PathNotFoundException, ItemExistsException, VersionException, ConstraintViolationException, UnsupportedRepositoryOperationException, LockException, InvalidItemStateException, RepositoryException {
         getWrappedNode().restore(version, relPath, removeExisting);
     }
 
     @Override
     public void restoreByLabel(String versionLabel, boolean removeExisting) throws VersionException, ItemExistsException, UnsupportedRepositoryOperationException, LockException, InvalidItemStateException, RepositoryException {
         getWrappedNode().restoreByLabel(versionLabel, removeExisting);
     }
 
     @Override
     public void setPrimaryType(String nodeTypeName) throws NoSuchNodeTypeException, VersionException, ConstraintViolationException, LockException, RepositoryException {
         getWrappedNode().setPrimaryType(nodeTypeName);
     }
 
     @Override
     public Property setProperty(String name, Value value) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, value);
     }
 
     @Override
     public Property setProperty(String name, Value[] values) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, values);
     }
 
     @Override
     public Property setProperty(String name, String[] values) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, values);
     }
 
     @Override
     public Property setProperty(String name, String value) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, value);
     }
 
     @Override
     public Property setProperty(String name, InputStream value) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, value);
     }
 
     @Override
     public Property setProperty(String name, Binary value) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, value);
     }
 
     @Override
     public Property setProperty(String name, boolean value) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, value);
     }
 
     @Override
     public Property setProperty(String name, double value) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, value);
     }
 
     @Override
     public Property setProperty(String name, BigDecimal value) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, value);
     }
 
     @Override
     public Property setProperty(String name, long value) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, value);
     }
 
     @Override
     public Property setProperty(String name, Calendar value) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, value);
     }
 
     @Override
     public Property setProperty(String name, Node value) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, value);
     }
 
     @Override
     public Property setProperty(String name, Value value, int type) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, value, type);
     }
 
     @Override
     public Property setProperty(String name, Value[] values, int type) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, values, type);
     }
 
     @Override
     public Property setProperty(String name, String[] values, int type) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, values, type);
     }
 
     @Override
     public Property setProperty(String name, String value, int type) throws ValueFormatException, VersionException, LockException, ConstraintViolationException, RepositoryException {
         return getWrappedNode().setProperty(name, value, type);
     }
 
     @Override
     public void unlock() throws UnsupportedRepositoryOperationException, LockException, AccessDeniedException, InvalidItemStateException, RepositoryException {
         getWrappedNode().unlock();
     }
 
     @Override
     public void update(String srcWorkspace) throws NoSuchWorkspaceException, AccessDeniedException, LockException, InvalidItemStateException, RepositoryException {
         getWrappedNode().update(srcWorkspace);
     }
 
     @Override
     public void accept(ItemVisitor visitor) throws RepositoryException {
         getWrappedNode().accept(visitor);
     }
 
     @Override
     public Item getAncestor(int depth) throws ItemNotFoundException, AccessDeniedException, RepositoryException {
         return getWrappedNode().getAncestor(depth);
     }
 
     @Override
     public int getDepth() throws RepositoryException {
         return getWrappedNode().getDepth();
     }
 
     @Override
     public String getName() throws RepositoryException {
         return getWrappedNode().getName();
     }
 
     @Override
     public Node getParent() throws ItemNotFoundException, AccessDeniedException, RepositoryException {
         return getWrappedNode().getParent();
     }
 
     @Override
     public String getPath() throws RepositoryException {
         return getWrappedNode().getPath();
     }
 
     @Override
     public Session getSession() throws RepositoryException {
         return getWrappedNode().getSession();
     }
 
     @Override
     public boolean isModified() {
         return getWrappedNode().isModified();
     }
 
     @Override
     public boolean isNew() {
         return getWrappedNode().isNew();
     }
 
     @Override
     public boolean isNode() {
         return getWrappedNode().isNode();
     }
 
     @Override
     public boolean isSame(Item otherItem) throws RepositoryException {
         return getWrappedNode().isSame(otherItem);
     }
 
     @Override
     public void refresh(boolean keepChanges) throws InvalidItemStateException, RepositoryException {
         getWrappedNode().refresh(keepChanges);
     }
 
     @Override
     public void remove() throws VersionException, LockException, ConstraintViolationException, AccessDeniedException, RepositoryException {
         getWrappedNode().remove();
     }
 
     @Override
     public void save() throws AccessDeniedException, ItemExistsException, ConstraintViolationException, InvalidItemStateException, ReferentialIntegrityException, VersionException, LockException, NoSuchNodeTypeException, RepositoryException {
         getWrappedNode().save();
     }
 
     /**
      * Removes a wrapper by type. The wrapper can be deep in a chain of wrappers in which case wrappers before it will
      * be cloned creating a new chain that leads to the same real node.
      */
     public Node deepUnwrap(Class<? extends DelegateNodeWrapper> wrapper)  {
 
         if (this.getClass().equals(wrapper)) {
             return getWrappedNode();
         }
 
         Node next = getWrappedNode();
 
         // If the next node is the real node then we can skip cloning ourselves.
         // This happens when the wrapper to remove isn't present
         if (!(next instanceof DelegateNodeWrapper)) {
             return this;
         }
 
         // We let the next wrapper do deepUnwrap first, if it returns itself then the wrapper isn't in the chain and cloning is not necessary
         Node deepUnwrappedNext = ((DelegateNodeWrapper) next).deepUnwrap(wrapper);
         if (deepUnwrappedNext == next) {
             return this;
         }
 
         try {
             DelegateNodeWrapper clone = ((DelegateNodeWrapper) this.clone());
             clone.initClone(deepUnwrappedNext);
             return clone;
         } catch (CloneNotSupportedException e) {
             throw new RuntimeException("Failed to unwrap " + this.getClass().getName() + " due to " + e.getMessage(), e);
         }
     }
 
     protected void initClone(Node newNode) {
         setWrappedNode(newNode);
     }
 
     @Override
     protected Object clone() throws CloneNotSupportedException {
         // just shallow clone ... keep it that way at least for wrappedNode otherwise deepUnwrap generates zillions of objects unnecessarily
         return super.clone();
     }
 
 }