Mercurial > hg > LGDataverses
diff src/main/java/de/mpiwg/gazetteer/utils/PropertiesUtils.java @ 12:c2e2d794847f
new: add config.properties file for gazetteer
author | Zoe Hong <zhong@mpiwg-berlin.mpg.de> |
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date | Wed, 30 Sep 2015 13:43:54 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/main/java/de/mpiwg/gazetteer/utils/PropertiesUtils.java Wed Sep 30 13:43:54 2015 +0200 @@ -0,0 +1,52 @@ +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); + } + +}