/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.jcr.impl.storage.jdbc;
import org.exoplatform.services.jcr.dataflow.ItemState;
import org.exoplatform.services.jcr.datamodel.ItemData;
import org.exoplatform.services.jcr.datamodel.ItemType;
import org.exoplatform.services.jcr.datamodel.NodeData;
import org.exoplatform.services.jcr.datamodel.QPathEntry;
import org.exoplatform.services.jcr.impl.storage.JCRInvalidItemStateException;
import org.exoplatform.services.jcr.impl.storage.JCRItemExistsException;
import java.io.IOException;
import java.sql.SQLException;
import javax.jcr.InvalidItemStateException;
import javax.jcr.ItemExistsException;
import javax.jcr.RepositoryException;
/**
* Created by The eXo Platform SAS.
*
* The eXo JCR database has constraints can be violated.
*
* JCR_PK_XCONTAINER - Can not be exisits two containers with same version
*
* JCR_PK_XITEM - Item already exists with this ID JCR_FK_XITEM_PARENT - Parent not found by ID
* JCR_IDX_XITEM_PARENT - Item already exists with the parent, name, index, type(N/P), persisted
* version JCR_IDX_XITEM_PARENT_NAME - Item already exists with the type(N/P), parent, name, index,
* persisted version JCR_IDX_XITEM_PARENT_ID - Item already exists with the type(N/P), parent, ID,
* persisted version
*
* JCR_PK_XVALUE - Value already exists with the ID (impossible, ID is autiincremented)
* JCR_FK_XVALUE_PROPERTY - There is no property exists for the value. JCR_IDX_XVALUE_PROPERTY -
* Value already exists with the property and order number
*
* JCR_PK_XREF - Reference already exists to the node from property with order number
* JCR_IDX_XREF_PROPERTY - Reference already exists with the property and order number
*
* @author Peter Nedonosko
* @version $Id: SQLExceptionHandler.java 34801 2009-07-31 15:44:50Z dkatayev $
*/
public class SQLExceptionHandler
{
/**
* Ccontainer name.
*/
private final String containerName;
/**
* Storage connection.
*/
private final JDBCStorageConnection conn;
// ---------------- SQLException handler -------------------
/**
* SQLExceptionHandler constructor.
*
* @param containerName
* - workspace container name
* @param conn
* - storage connection
*/
SQLExceptionHandler(String containerName, JDBCStorageConnection conn)
{
this.containerName = containerName;
this.conn = conn;
}
/**
* Handle Add SQLException.
*
* @param e
* - an SQLException
* @param item
* - context ItemData
* @return String with error message
* @throws RepositoryException
* if <code>RepositoryException</code> should be thrown
* @throws InvalidItemStateException
* if <code>InvalidItemStateException</code> should be thrown
*/
protected String handleAddException(SQLException e, ItemData item) throws RepositoryException,
InvalidItemStateException
{
StringBuilder message = new StringBuilder("[");
message.append(containerName).append("] ADD ").append(item.isNode() ? "NODE. " : "PROPERTY. ");
String errMessage = e.getMessage();
String itemInfo =
item.getQPath().getAsString() + ", ID: " + item.getIdentifier() + ", ParentID: " + item.getParentIdentifier()
+ (errMessage != null ? ". Cause >>>> " + errMessage : "");
if (errMessage != null)
{
// try detect error by foreign key names
String umsg = errMessage.toLowerCase().toUpperCase();
if (umsg.indexOf(conn.JCR_FK_ITEM_PARENT) >= 0)
{
message.append("Parent not found. Item ").append(itemInfo);
throw new JCRInvalidItemStateException(message.toString(), item.getIdentifier(), ItemState.ADDED, e);
}
else if (umsg.indexOf(conn.JCR_PK_ITEM) >= 0)
{
message.append("Item already exists. Condition: ID. ").append(itemInfo);
// InvalidItemStateException ! - because it's impossible add new item with existed UUID
throw new JCRInvalidItemStateException(message.toString(), item.getIdentifier(), ItemState.ADDED, e);
}
else if (umsg.indexOf(conn.JCR_IDX_ITEM_PARENT) >= 0 || umsg.indexOf(conn.JCR_IDX_ITEM_PARENT_NAME) >= 0)
{
message.append("Item already exists. Condition: parent ID, name, index. ").append(itemInfo);
throw new ItemExistsException(message.toString(), e);
}
else if (umsg.indexOf(conn.JCR_IDX_ITEM_PARENT_ID) >= 0)
{
message.append("Item already exists. Condition: parent ID and ID. ").append(itemInfo);
throw new ItemExistsException(message.toString(), e);
}
else if (umsg.indexOf(conn.JCR_FK_VALUE_PROPERTY) >= 0)
{
message.append("Property is not exist but the value is being created. Condition: property ID. ").append(
itemInfo);
throw new RepositoryException(message.toString(), e);
}
else if (umsg.indexOf(conn.JCR_IDX_VALUE_PROPERTY) >= 0)
{
message.append("Property already exists. Condition: property ID, order number. ").append(itemInfo);
throw new RepositoryException(message.toString(), e);
}
else if (umsg.indexOf(conn.JCR_PK_VALUE) >= 0)
{
message
.append(
"[FATAL] Value already exists with the ValueID. Impossible state, check is ValueID is autoincremented. ")
.append(itemInfo);
throw new RepositoryException(message.toString(), e);
}
else if (umsg.indexOf(conn.JCR_PK_REF) >= 0)
{
message.append("Reference chain already exists. Condition: node ID, property ID, order number. ").append(
itemInfo);
throw new RepositoryException(message.toString(), e);
}
else if (umsg.indexOf(conn.JCR_IDX_REF_PROPERTY) >= 0)
{
message.append("Referenceable property value already exists. Condition: property ID, order number. ")
.append(itemInfo);
throw new RepositoryException(message.toString(), e);
}
}
// try detect integrity violation
RepositoryException ownException = null;
try
{
NodeData parent = (NodeData)conn.getItemData(item.getParentIdentifier());
if (parent != null)
{
// have a parent
try
{
ItemData me = conn.getItemData(item.getIdentifier());
if (me != null)
{
// item already exists
message.append("Item already exists in storage: ").append(itemInfo);
ownException = new JCRItemExistsException(message.toString(), me.getIdentifier(), ItemState.ADDED, e);
throw ownException;
}
me =
conn.getItemData(parent, new QPathEntry(item.getQPath().getName(), item.getQPath().getIndex()),
ItemType.getItemType(item));
if (me != null)
{
message.append("Item already exists in storage: ").append(itemInfo);
ownException = new JCRItemExistsException(message.toString(), me.getIdentifier(), ItemState.ADDED, e);
throw ownException;
}
}
catch (Exception ep)
{
// item not found or other things but error of item reading
if (ownException != null)
throw ownException;
}
// MySQL violation
if (e.getClass().getName().indexOf("MySQLIntegrityConstraintViolationException") >= 0
&& errMessage.indexOf(item.getIdentifier()) >= 0)
{
// it's JCR_PK_ITEM violation
message.append("Item already exists. Condition: ID. ").append(itemInfo);
throw new JCRInvalidItemStateException(message.toString(), item.getIdentifier(), ItemState.ADDED, e);
}
// DB2 violation
if (e.getClass().getName().indexOf("SqlIntegrityConstraintViolationException") >= 0
&& errMessage.indexOf("SQLCODE=-803") >= 0)
{
message.append("Item already exists.").append(itemInfo);
throw new JCRInvalidItemStateException(message.toString(), item.getIdentifier(), ItemState.ADDED, e);
}
message.append("Error of item add. ").append(itemInfo);
ownException = new RepositoryException(message.toString(), e);
throw ownException;
}
}
catch (Exception ep)
{
// no parent or error access it
if (ownException != null)
throw ownException;
}
message.append("Error of item add. ").append(itemInfo);
throw new JCRInvalidItemStateException(message.toString(), item.getIdentifier(), ItemState.ADDED, e);
}
/**
* Handle Add IOException.
*
* @param e
* - an IOException
* @param item
* - context ItemData
* @return String with error message
* @throws RepositoryException
* if <code>RepositoryException</code> should be thrown
* @throws InvalidItemStateException
* if <code>InvalidItemStateException</code> should be thrown
*/
protected String handleAddException(IOException e, ItemData item) throws RepositoryException,
InvalidItemStateException
{
StringBuilder message = new StringBuilder("[");
message.append(containerName).append("] ADD ").append(item.isNode() ? "NODE. " : "PROPERTY. ");
String errMessage = e.getMessage();
String itemInfo =
item.getQPath().getAsString() + ", ID: " + item.getIdentifier() + ", ParentID: " + item.getParentIdentifier()
+ (errMessage != null ? ". Cause >>>> " + errMessage : "");
// try detect integrity violation
RepositoryException ownException = null;
try
{
NodeData parent = (NodeData)conn.getItemData(item.getParentIdentifier());
if (parent != null)
{
// have a parent
try
{
ItemData me = conn.getItemData(item.getIdentifier());
if (me != null)
{
// item already exists
message.append("Item already exists in storage: ").append(itemInfo);
ownException = new ItemExistsException(message.toString(), e);
throw ownException;
}
me =
conn.getItemData(parent, new QPathEntry(item.getQPath().getName(), item.getQPath().getIndex()),
ItemType.getItemType(item));
if (me != null)
{
message.append("Item already exists in storage: ").append(itemInfo);
ownException = new ItemExistsException(message.toString(), e);
throw ownException;
}
}
catch (Exception ep)
{
// item not found or other things but error of item reading
if (ownException != null)
throw ownException;
}
message.append("Error of item add. ").append(itemInfo);
ownException = new RepositoryException(message.toString(), e);
throw ownException;
}
}
catch (Exception ep)
{
// no parent or error access it
if (ownException != null)
throw ownException;
}
message.append("Error of item add. ").append(itemInfo);
throw new JCRInvalidItemStateException(message.toString(), item.getIdentifier(), ItemState.ADDED, e);
}
/**
* Handle delete Exceptions.
*
* @param e
* - an SQLException
* @param item
* - context ItemData
* @return String with error message
* @throws RepositoryException
* if <code>RepositoryException</code> should be thrown
* @throws InvalidItemStateException
* if <code>InvalidItemStateException</code> should be thrown
*/
protected String handleDeleteException(SQLException e, ItemData item) throws RepositoryException,
InvalidItemStateException
{
StringBuilder message = new StringBuilder("[");
message.append(containerName).append("] DELETE ").append(item.isNode() ? "NODE. " : "PROPERTY. ");
String errMessage = e.getMessage();
String itemInfo =
item.getQPath().getAsString() + " " + item.getIdentifier()
+ (errMessage != null ? ". Cause >>>> " + errMessage : "");
if (errMessage != null)
{
// try detect error by foreign key names
String umsg = errMessage.toLowerCase().toUpperCase();
if (umsg.indexOf(conn.JCR_FK_ITEM_PARENT) >= 0)
{
message.append("Can not delete parent till childs exists. Item ").append(itemInfo);
throw new JCRInvalidItemStateException(message.toString(), item.getIdentifier(), ItemState.DELETED, e);
}
else if (umsg.indexOf(conn.JCR_FK_VALUE_PROPERTY) >= 0)
{
message.append("[FATAL] Can not delete property item till it contains values. Condition: property ID. ")
.append(itemInfo);
throw new RepositoryException(message.toString(), e);
}
}
message.append("Error of item delete ").append(itemInfo);
throw new RepositoryException(message.toString(), e);
}
/**
* Handle update Exceptions.
*
* @param e
* - an SQLException
* @param item
* - context ItemData
* @return String with error message
* @throws RepositoryException
* if <code>RepositoryException</code> should be thrown
* @throws InvalidItemStateException
* if <code>InvalidItemStateException</code> should be thrown
*/
public String handleUpdateException(SQLException e, ItemData item) throws RepositoryException,
InvalidItemStateException
{
StringBuilder message = new StringBuilder("[");
message.append(containerName).append("] EDIT ").append(item.isNode() ? "NODE. " : "PROPERTY. ");
String errMessage = e.getMessage();
String itemInfo =
item.getQPath().getAsString() + " " + item.getIdentifier()
+ (errMessage != null ? ". Cause >>>> " + errMessage : "");
if (errMessage != null)
// try detect error by foreign key names
if (errMessage.toLowerCase().toUpperCase().indexOf(conn.JCR_FK_VALUE_PROPERTY) >= 0)
{
message.append("Property is not exists but the value is being created. Condition: property ID. ").append(
itemInfo);
throw new RepositoryException(message.toString(), e);
}
else if (errMessage.toLowerCase().toUpperCase().indexOf(conn.JCR_PK_ITEM) >= 0)
{
message.append("Item already exists. Condition: ID. ").append(itemInfo);
throw new JCRInvalidItemStateException(message.toString(), item.getIdentifier(), ItemState.UPDATED, e);
}
// try detect integrity violation
RepositoryException ownException = null;
try
{
ItemData me = conn.getItemData(item.getIdentifier());
if (me != null)
{
// item already exists
message.append("Item already exists. But update errors. ").append(itemInfo);
ownException = new RepositoryException(message.toString(), e);
throw ownException;
}
}
catch (Exception ep)
{
// item not found or other things but error of item reading
if (ownException != null)
throw ownException;
}
message.append("Error of item update. ").append(itemInfo);
throw new JCRInvalidItemStateException(message.toString(), item.getIdentifier(), ItemState.UPDATED, e);
}
}