donaldp 02/01/25 20:17:06
Added: proposal/myrmidon/src/java/org/apache/myrmidon/services
ServiceFactory.java ServiceException.java
proposal/myrmidon/src/java/org/apache/myrmidon/framework/factorys
Resources.properties ExecManagerFactory.java
proposal/myrmidon/src/manifest core-services.xml
Log:
Add in a basic example of the interface via which Service *could* be loaded
into the runtime.
Added in a sample config file and a sample factory aswell.
Revision Changes Path
1.1
jakarta-ant/proposal/myrmidon/src/java/org/apache/myrmidon/services/ServiceFactory.java
Index: ServiceFactory.java
===================================================================
/*
* Copyright (C) The Apache Software Foundation. All rights reserved.
*
* This software is published under the terms of the Apache Software License
* version 1.1, a copy of which has been included with this distribution in
* the LICENSE.txt file.
*/
package org.apache.myrmidon.services;
/**
* A ServiceFactory is used to create a service for use in the
* Myrmidon runtime. The factory is responsible for creating and
* preparing the service for use.
*
* @author <a href="mailto:[EMAIL PROTECTED]">Peter Donald</a>
* @version $Revision: 1.1 $ $Date: 2002/01/26 04:17:06 $
*/
public interface ServiceFactory
{
/**
* Create a service that coresponds to this factory.
* This method is usually called after the factory has been
* prepared and configured as appropriate.
*/
Object createService()
throws ServiceException;
}
1.1
jakarta-ant/proposal/myrmidon/src/java/org/apache/myrmidon/services/ServiceException.java
Index: ServiceException.java
===================================================================
/*
* Copyright (C) The Apache Software Foundation. All rights reserved.
*
* This software is published under the terms of the Apache Software License
* version 1.1, a copy of which has been included with this distribution in
* the LICENSE.txt file.
*/
package org.apache.myrmidon.services;
import org.apache.avalon.framework.CascadingException;
/**
* ServiceException thrown when a service can not be created for
* some reason.
*
* @author <a href="mailto:[EMAIL PROTECTED]">Peter Donald</a>
*/
public class ServiceException
extends CascadingException
{
/**
* Basic constructor for exception that does not specify a message
*/
public ServiceException()
{
this( "", null );
}
/**
* Basic constructor with a message
*
* @param message the message
*/
public ServiceException( final String message )
{
this( message, null );
}
/**
* Constructor that builds cascade so that other exception information
can be retained.
*
* @param message the message
* @param throwable the throwable
*/
public ServiceException( final String message, final Throwable throwable )
{
super( message, throwable );
}
}
1.1
jakarta-ant/proposal/myrmidon/src/java/org/apache/myrmidon/framework/factorys/Resources.properties
Index: Resources.properties
===================================================================
missing-home-dir.error=Cannot locate antRun scripts: Property 'myrmidon.home'
not specified
1.1
jakarta-ant/proposal/myrmidon/src/java/org/apache/myrmidon/framework/factorys/ExecManagerFactory.java
Index: ExecManagerFactory.java
===================================================================
/*
* Copyright (C) The Apache Software Foundation. All rights reserved.
*
* This software is published under the terms of the Apache Software License
* version 1.1, a copy of which has been included with this distribution in
* the LICENSE.txt file.
*/
package org.apache.myrmidon.framework.factorys;
import java.io.File;
import org.apache.aut.nativelib.ExecException;
import org.apache.aut.nativelib.impl.DefaultExecManager;
import org.apache.avalon.excalibur.i18n.ResourceManager;
import org.apache.avalon.excalibur.i18n.Resources;
import org.apache.myrmidon.services.ServiceException;
import org.apache.myrmidon.services.ServiceFactory;
/**
* A Factory responsible for creating the ExecManager service.
*
* @author <a href="mailto:[EMAIL PROTECTED]">Peter Donald</a>
* @version $Revision: 1.1 $ $Date: 2002/01/26 04:17:06 $
*/
public class ExecManagerFactory
implements ServiceFactory
{
private static final Resources REZ =
ResourceManager.getPackageResources( ExecManagerFactory.class );
/**
* Create the ExecManager Service.
*/
public Object createService()
throws ServiceException
{
final File home = getHomeDirectory();
try
{
return new DefaultExecManager( home );
}
catch( final ExecException ee )
{
throw new ServiceException( ee.getMessage(), ee );
}
}
/**
* Utility method to retrieve home directory.
*/
private static File getHomeDirectory()
throws ServiceException
{
final String home = System.getProperty( "myrmidon.home" );
if( null == home )
{
final String message = REZ.getString( "missing-home-dir.error" );
throw new ServiceException( message );
}
return new File( home );
}
}
1.1
jakarta-ant/proposal/myrmidon/src/manifest/core-services.xml
Index: core-services.xml
===================================================================
<services>
<service role="org.apache.aut.nativelib.ExecManager"
factory="org.apache.myrmidon.framework.factorys.ExecManagerFactory"/>
</services>
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