cdmlib-persistence/src/main/java/eu/etaxonomy/cdm/database/DataSourceBeanLoader.java

   1 package eu.etaxonomy.cdm.database;
   2
   3 import java.io.File;
   4 import java.util.HashMap;
   5 import java.util.Map;
   6
   7 import org.apache.log4j.Logger;
   8 import org.springframework.beans.factory.xml.XmlBeanFactory;
   9 import org.springframework.core.io.FileSystemResource;
  10 import org.springframework.stereotype.Component;
  11
  12 @Component
  13 public class DataSourceBeanLoader {
  14
  15         private static final Logger logger = Logger.getLogger(DataSourceBeanLoader.class);
  16
  17         private static final String DATASOURCE_BEANDEF_FILE = "datasources.xml";
  18         private static final String DATASOURCE_BEANDEF_PATH = System.getProperty("user.home")+File.separator+".cdmLibrary"+File.separator;
  19
  20         private static String userdefinedBeanDefinitionFile = null;
  21
  22         public void setBeanDefinitionFile(String filename){
  23                 userdefinedBeanDefinitionFile = filename;
  24         }
  25
  26
  27         /**
  28          * @return
  29          */
  30         public static <T> Map<String, T> loadDataSources(final Class<T> requiredType) {
  31
  32                 Map<String, T> dataSources = new HashMap<String, T>();
  33                 String path = DATASOURCE_BEANDEF_PATH + (userdefinedBeanDefinitionFile == null ? DATASOURCE_BEANDEF_FILE : userdefinedBeanDefinitionFile);
  34
  35                 logger.info("loading DataSourceBeans from: " + path);
  36                 FileSystemResource file = new FileSystemResource(path);
  37                 XmlBeanFactory beanFactory  = new XmlBeanFactory(file);
  38
  39                 for(String beanName : beanFactory.getBeanDefinitionNames()){
  40                         T datasource = beanFactory.getBean(beanName, requiredType);
  41                         dataSources.put(beanName, datasource);
  42                 }
  43                 return (Map<String, T>) dataSources;
  44         }
  45
  46 }