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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
AbstractLoggerStoreFactory.java | 100% | 100% | 100% | 100% |
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/*
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* Copyright (C) The Spice Group. All rights reserved.
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*
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* This software is published under the terms of the Spice
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* Software License version 1.1, a copy of which has been included
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* with this distribution in the LICENSE.txt file.
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*/
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package org.codehaus.spice.loggerstore.factories;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.InputStream;
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import java.net.URL;
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import java.util.Map;
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import org.codehaus.spice.loggerstore.LoggerStore;
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import org.codehaus.spice.loggerstore.LoggerStoreFactory;
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import org.jcontainer.dna.AbstractLogEnabled;
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/**
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* The abstract class that makes it easy to create LoggerStoreFactory
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* implementations.
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*
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* @author Peter Donald
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* @author <a href="mailto:mauro.talevi at aquilonia.org">Mauro Talevi</a>
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* @version $Revision: 1.1 $ $Date: 2003/11/19 18:22:44 $
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*/
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public abstract class AbstractLoggerStoreFactory |
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extends AbstractLogEnabled
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implements LoggerStoreFactory
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{ |
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/**
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* Creates a LoggerStore from a given set of configuration parameters. The
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* configuration map contains entrys specific to the concrete
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* implementation.
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*
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* @param config the parameter map to configuration of the store
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* @return the LoggerStore
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* @throws Exception if unable to create the LoggerStore
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*/
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public LoggerStore createLoggerStore( final Map config )
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throws Exception
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{ |
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final LoggerStore loggerStore = doCreateLoggerStore( config ); |
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setupLogger( loggerStore ); |
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return loggerStore;
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} |
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protected abstract LoggerStore doCreateLoggerStore( Map config )
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throws Exception;
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/**
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* Utility method to throw exception indicating input data was invalid.
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*
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* @return never returns
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* @throws Exception indicating input data was invalid
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*/
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protected LoggerStore missingConfiguration()
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throws Exception
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{ |
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throw new Exception( "Invalid configuration" ); |
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} |
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/**
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* A utility method to retrieve a InputStream from input map. It will
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* systematically go through the following steps to attempt to locate the
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* InputStream stopping at success.
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*
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* <ul> <li>Lookup LoggerStoreFactory.URL_LOCATION for string defining URL
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* location of input configuration.</li> <li>Lookup java.net.URL for URL
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* object defining URL location of input configuration.</li> <li>Lookup
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* LoggerStoreFactory.FILE_LOCATION for string defining File location of
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* input configuration.</li> <li>Lookup java.io.File for File object
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* defining File location of input configuration.</li> <li>Lookup
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* java.io.InputStream for InputStream object.</li> </ul>
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*
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* @param config the input map
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* @return the InputStream or null if no stream present
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* @throws Exception if there was a problem aquiring stream
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*/
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protected InputStream getInputStream( final Map config )
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throws Exception
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{ |
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final String urlLocation = (String)config.get( URL_LOCATION ); |
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URL url = null;
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if( null != urlLocation ) |
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{ |
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url = new URL( urlLocation );
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} |
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if( null == url ) |
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{ |
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url = (URL)config.get( URL.class.getName() );
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} |
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if( null != url ) |
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{ |
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return url.openStream();
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} |
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final String fileLocation = (String)config.get( FILE_LOCATION ); |
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File file = null;
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if( null != fileLocation ) |
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{ |
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file = new File( fileLocation );
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} |
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if( null == file ) |
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{ |
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file = (File)config.get( File.class.getName() );
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} |
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if( null != file ) |
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{ |
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return new FileInputStream( file ); |
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} |
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return (InputStream)config.get( InputStream.class.getName() ); |
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} |
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} |
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