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