Mercurial > hg > LGServices
view src/main/java/de/mpiwg/gazetteer/utils/PropertiesUtils.java @ 4:c30ff4f27ec3
adding developer guide documentation
author | "jurzua <jurzua@mpiwg-berlin.mpg.de>" |
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date | Mon, 18 May 2015 15:55:01 +0200 |
parents | 3e62083dbcbf |
children |
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package de.mpiwg.gazetteer.utils; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.util.Properties; import org.apache.log4j.Logger; public class PropertiesUtils { private static Logger logger = Logger.getLogger(PropertiesUtils.class); private static PropertiesUtils instance; private static String PROP_FILENAME = "config.properties"; private Properties prop; private PropertiesUtils() throws IOException{ loadProperties(); } public void loadProperties() throws IOException { logger.info("##### Loading Propertis from " + PROP_FILENAME + " #####"); prop = new Properties(); InputStream inputStream = getClass().getClassLoader().getResourceAsStream(PROP_FILENAME); if (inputStream != null) { prop.load(inputStream); } else { prop = null; throw new FileNotFoundException("property file '" + PROP_FILENAME + "' not found in the classpath"); } } public static String getPropValue(String key) throws IOException{ if(instance == null){ instance = new PropertiesUtils(); } if(instance.prop == null){ instance.loadProperties(); } return instance.prop.getProperty(key); } }