/*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at .
*
* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* The Original Code is the Venice Web Communities System.
*
* The Initial Developer of the Original Code is Eric J. Bowersox ,
* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
* Copyright (C) 2003 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
*
* Contributor(s):
*/
package com.silverwrist.dynamo.module;
import java.io.*;
import java.sql.*;
import java.util.*;
import org.w3c.dom.*;
import com.silverwrist.util.*;
import com.silverwrist.util.xml.*;
import com.silverwrist.dynamo.except.*;
import com.silverwrist.dynamo.iface.*;
class InstallerImpl implements DatabaseInstaller
{
/*--------------------------------------------------------------------------------
* Attributes
*--------------------------------------------------------------------------------
*/
private DBConnectionPool m_pool;
/*--------------------------------------------------------------------------------
* Constructor
*--------------------------------------------------------------------------------
*/
InstallerImpl(DBConnectionPool pool)
{
m_pool = pool;
} // end constructor
/*--------------------------------------------------------------------------------
* Internal operations
*--------------------------------------------------------------------------------
*/
private static final List loadCommandList(InputStream stm, DynamoLog log) throws ModuleException
{
XMLLoader loader = XMLLoader.get();
try
{ // load the script, parse it, and get the list of elements
Document doc = loader.load(stm,false);
Element elt = loader.getRootElement(doc,"database-info");
return loader.getMatchingSubElements(elt,"command");
} // end try
catch (IOException e)
{ // translate to a ModuleException
log.error("I/O error loading script",e);
ModuleException me = new ModuleException(InstallerImpl.class,"ModuleMessages","dbInstall.scriptIO",e);
me.setParameter(0,e.getMessage());
throw me;
} // end catch
catch (XMLLoadException e)
{ // translate to a ModuleException
log.error("XML error loading script",e);
ModuleException me = new ModuleException(InstallerImpl.class,"ModuleMessages","dbInstall.parser",e);
me.setParameter(0,e.getMessage());
throw me;
} // end catch
} // end loadCommandList
private static final List makeInstallList(List in_list) throws ModuleException
{
LinkedList rc = new LinkedList();
Iterator it = in_list.iterator();
while (it.hasNext())
{ // look through each command and find the sub-element
Element elt = (Element)(it.next());
DOMElementHelper h = new DOMElementHelper(elt);
Element t = h.getSubElement("install");
if (t!=null)
{ // get the install command
String[] dat = new String[2];
dat[0] = h.getSubElementText("install");
if (dat[0]!=null)
{ // store the command in the list
dat[0] = dat[0].trim();
if (t.hasAttribute("log"))
dat[1] = t.getAttribute("log");
else
dat[1] = null;
rc.addLast(dat);
} // end if
} // end if
} // end while
return rc;
} // end makeInstallList
private static final List makeUninstallList(List in_list) throws ModuleException
{
LinkedList rc = new LinkedList();
Iterator it = in_list.iterator();
while (it.hasNext())
{ // look through each command and find the sub-element
Element elt = (Element)(it.next());
DOMElementHelper h = new DOMElementHelper(elt);
Element t = h.getSubElement("uninstall");
if (t!=null)
{ // get the install command
String[] dat = new String[2];
dat[0] = h.getSubElementText("uninstall");
if (dat[0]!=null)
{ // store the command in the list
dat[0] = dat[0].trim();
if (t.hasAttribute("log"))
dat[1] = t.getAttribute("log");
else
dat[1] = null;
rc.addFirst(dat);
} // end if
} // end if
} // end while
return rc;
} // end makeUninstallList
private final void execList(List cmds, DynamoLog log) throws ModuleException
{
Connection conn = null;
Statement stmt = null;
try
{ // get a database connection
conn = m_pool.getConnection();
stmt = conn.createStatement();
// loop through the commands
Iterator it = cmds.iterator();
while (it.hasNext())
{ // pull out each item in turn
String[] item = (String[])(it.next());
try
{ // execute the SQL statement
stmt.executeUpdate(item[0]);
if (item[1]!=null)
log.info("Success: " + item[1]);
} // end try
catch (SQLException e)
{ // log error and throw message
log.error("Failure: " + ((item[1]==null) ? "statement execution" : item[1]),e);
log.debug("Statement: " + item[0]);
ModuleException me = new ModuleException(InstallerImpl.class,"ModuleMessages","dbInstall.exec",e);
me.setParameter(0,e.getMessage());
throw me;
} // end catch
} // end while
} // end try
catch (DatabaseException e)
{ // throw exception
ModuleException me = new ModuleException(InstallerImpl.class,"ModuleMessages","dbInstall.execInit",e);
me.setParameter(0,e.getMessage());
throw me;
} // end catch
catch (SQLException e)
{ // throw exception
ModuleException me = new ModuleException(InstallerImpl.class,"ModuleMessages","dbInstall.execInit",e);
me.setParameter(0,e.getMessage());
throw me;
} // end catch
finally
{ // make sure we shut down the connection before we go
SQLUtils.shutdown(stmt);
SQLUtils.shutdown(conn);
} // end finally
} // end execList
/*--------------------------------------------------------------------------------
* Implementations from interface DatabaseInstaller
*--------------------------------------------------------------------------------
*/
public String getDatabaseType()
{
return m_pool.getDatabaseType();
} // end getDatabaseType
public void runInstallScript(InputStream script, DynamoLog log) throws ModuleException
{
List in_list = loadCommandList(script,log);
List the_list = makeInstallList(in_list);
execList(the_list,log);
} // end runInstallScript
public void runUninstallScript(InputStream script, DynamoLog log) throws ModuleException
{
List in_list = loadCommandList(script,log);
List the_list = makeUninstallList(in_list);
execList(the_list,log);
} // end runUninstallScript
} // end class InstallerImpl