package org.apache.torque.avalon;
/*
* 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.
*/
import java.io.File;
import java.util.Iterator;
import java.util.Map;
import org.apache.avalon.framework.activity.Disposable;
import org.apache.avalon.framework.activity.Initializable;
import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.context.Context;
import org.apache.avalon.framework.context.ContextException;
import org.apache.avalon.framework.context.Contextualizable;
import org.apache.avalon.framework.logger.LogEnabled;
import org.apache.avalon.framework.logger.Logger;
import org.apache.avalon.framework.thread.ThreadSafe;
import org.apache.commons.lang.StringUtils;
import org.apache.torque.TorqueInstance;
/**
* Avalon component for Torque.
*
* @author <a href="mailto:mpoeschl@marmot.at">Martin Poeschl</a>
* @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
* @author <a href="mailto:tv@apache.org">Thomas Vandahl</a>
* @version $Id: TorqueComponent.java 529759 2007-04-17 20:52:01Z tv $
*/
public class TorqueComponent
extends TorqueInstance
implements Torque,
LogEnabled,
Configurable,
Initializable,
Contextualizable,
Disposable,
ThreadSafe
{
/** The Avalon Application Root */
private String appRoot = null;
/** The Avalon Logger */
private Logger logger = null;
/** The configuration file name. */
private String configFile = null;
/*
* ========================================================================
*
* Avalon Component Interfaces
*
* ========================================================================
*/
/**
* @see org.apache.avalon.framework.logger.LogEnabled#enableLogging(org.apache.avalon.framework.logger.Logger)
*/
public void enableLogging(Logger aLogger)
{
this.logger = aLogger;
}
/**
* Convenience method to provide the Avalon logger the way AbstractLogEnabled does.
*/
public Logger getLogger()
{
return logger;
}
/**
* @see
* org.apache.avalon.framework.configuration.Configurable#configure(org.apache.avalon.framework.configuration.Configuration)
*/
public void configure(Configuration configuration)
throws ConfigurationException
{
getLogger().debug("configure(" + configuration + ")");
String configurationFile
= configuration.getChild("configfile").getValue();
if (StringUtils.isNotEmpty(appRoot))
{
if (configurationFile.startsWith("/"))
{
configurationFile = configurationFile.substring(1);
getLogger().debug("Config File changes to "
+ configurationFile);
}
StringBuffer sb = new StringBuffer();
sb.append(appRoot);
sb.append(File.separator);
sb.append(configurationFile);
configurationFile = sb.toString();
}
getLogger().debug("Config File is " + configurationFile);
this.configFile = configurationFile;
}
/**
* @see org.apache.avalon.framework.context.Contextualizable
*/
public void contextualize(Context context)
throws ContextException
{
// check context Merlin and YAAFI style
try
{
appRoot = ((File) context.get("urn:avalon:home")).getAbsolutePath();
}
catch (ContextException ce)
{
appRoot = null;
}
if (appRoot == null)
{
// check context old ECM style, let exception flow if not available
appRoot = (String) context.get("componentAppRoot");
}
if (StringUtils.isNotEmpty(appRoot))
{
if (appRoot.endsWith("/"))
{
appRoot = appRoot.substring(0, appRoot.length() - 1);
getLogger().debug("Application Root changed to " + appRoot);
}
}
}
/**
* @see org.apache.avalon.framework.activity.Initializable#initialize()
*/
public void initialize()
throws Exception
{
getLogger().debug("initialize()");
TorqueInstance instance = org.apache.torque.Torque.getInstance();
Map mapBuilders = instance.getMapBuilders();
if (mapBuilders != null)
{
// Copy the registered MapBuilders and take care that they will be built again
for (Iterator i = mapBuilders.keySet().iterator(); i.hasNext();)
{
String className = (String)i.next();
registerMapBuilder(className);
}
}
// Provide the singleton instance to the static accessor
org.apache.torque.Torque.setInstance(this);
init(configFile);
}
/**
* @see org.apache.avalon.framework.activity.Disposable#dispose()
*/
public void dispose()
{
getLogger().debug("dispose()");
try
{
shutdown();
}
catch (Exception e)
{
getLogger().error("Error while stopping Torque", e);
}
}
}