Merge branch 'master' of ssh://git.indexdata.com/home/git/private/mkjsf.git into...

[mkjsf-moved-to-github.git] / src / main / java / com / indexdata / mkjsf / config / Mk2ConfigReader.java

diff --git a/src/main/java/com/indexdata/mkjsf/config/Mk2ConfigReader.java b/src/main/java/com/indexdata/mkjsf/config/Mk2ConfigReader.java
new file mode 100644 (file)
index 0000000..8679458
--- /dev/null
+++ b/src/main/java/com/indexdata/mkjsf/config/Mk2ConfigReader.java
@@ -0,0 +1,100 @@
+package com.indexdata.mkjsf.config;\r
+\r
+import java.io.IOException;\r
+import java.util.ArrayList;\r
+import java.util.HashMap;\r
+import java.util.List;\r
+import java.util.Map;\r
+\r
+import javax.enterprise.context.SessionScoped;\r
+import javax.enterprise.inject.Alternative;\r
+import javax.faces.context.ExternalContext;\r
+import javax.faces.context.FacesContext;\r
+import javax.inject.Named;\r
+import javax.servlet.ServletContext;\r
+import javax.servlet.http.HttpServletRequest;\r
+\r
+import org.apache.log4j.Logger;\r
+\r
+import com.indexdata.masterkey.config.MasterkeyConfiguration;\r
+import com.indexdata.masterkey.config.ModuleConfiguration;\r
+import com.indexdata.mkjsf.errors.ConfigurationException;\r
+import com.indexdata.mkjsf.errors.MissingConfigurationContextException;\r
+import com.indexdata.mkjsf.utils.Utils;\r
+\r
+import static com.indexdata.mkjsf.utils.Utils.nl;\r
+\r
+/**\r
+ * Reads configuration from a MasterKey configuration scheme\r
+ * \r
+ * \r
+ * @author Niels Erik\r
+ *\r
+ */\r
+@Named @SessionScoped @Alternative\r
+public class Mk2ConfigReader implements ConfigurationReader  {\r
+\r
+  private static final long serialVersionUID = 8865086878660568870L;\r
+  private static Logger logger = Logger.getLogger(Mk2ConfigReader.class);\r
+  private Map<String,Configuration> configs = new HashMap<String,Configuration>(); \r
+  private Map<String,Configurable> configurables = new HashMap<String,Configurable>();\r
+\r
+  public Mk2ConfigReader () throws IOException {\r
+    logger.info(Utils.objectId(this) + " is instantiating Pazpar2 service configuration by MasterKey configuration scheme.");\r
+  }\r
+\r
+  @Override\r
+  public Configuration getConfiguration(Configurable configurable) throws ConfigurationException {    \r
+    if (configs.get(configurable.getModuleName()) == null) {\r
+      Configuration config = readConfig(configurable);\r
+      configs.put(configurable.getModuleName(), config); \r
+      configurables.put(configurable.getModuleName(), configurable);\r
+    }\r
+    return configs.get(configurable.getModuleName());    \r
+  }\r
+    \r
+  private Configuration readConfig (Configurable configurable) throws ConfigurationException {\r
+    Configuration config = new Configuration();\r
+    MasterkeyConfiguration mkConfigContext = null;\r
+    ExternalContext externalContext = null;\r
+    try {\r
+      externalContext = FacesContext.getCurrentInstance().getExternalContext();      \r
+    } catch (NullPointerException npe){\r
+      throw new MissingConfigurationContextException("No FacesContext available to get configuration context from: " + npe.getMessage());\r
+    }\r
+    ServletContext servletContext = (ServletContext) externalContext.getContext();\r
+    try {\r
+      mkConfigContext = MasterkeyConfiguration.getInstance(servletContext,\r
+      "mkjsf", ((HttpServletRequest) externalContext.getRequest()).getServerName());\r
+    } catch (IOException e) {\r
+      throw new ConfigurationException(Mk2ConfigReader.class + " could not read configuration for '" + configurable.getModuleName() + "' using MasterKey configuration scheme: "+e.getMessage(),e);\r
+    }        \r
+    try {\r
+      ModuleConfiguration moduleConfig = mkConfigContext.getModuleConfiguration(configurable.getModuleName());      \r
+      config.addAll(configurable.getDefaults(),moduleConfig.getConfigMap());\r
+      config.set("configpath", moduleConfig.getConfigFilePath());            \r
+    } catch (IOException e) {\r
+      throw new ConfigurationException(Mk2ConfigReader.class + " could not read configuration for '"+ configurable.getModuleName() + "': "+e.getMessage(),e);\r
+    }        \r
+    return config;\r
+  }\r
+        \r
+  public List<String> document() {\r
+    List<String> doc = new ArrayList<String>();\r
+    doc.add("Application properties as read by " + this.getClass());\r
+    for (String moduleName : configs.keySet()) {\r
+      doc.add(nl+"Module: " + moduleName);\r
+      Configurable module = configurables.get(moduleName);\r
+      Map<String,String> map = configs.get(moduleName).getConfigMap();\r
+      for (String key :  map.keySet()) {\r
+        doc.add(nl+key+": "+ map.get(key) +\r
+            (module.getDefaults().containsKey(key) ? \r
+                (module.getDefaults().get(key).equals(map.get(key)) ? " [default]" : " [override]")\r
+                : "")); \r
+      }\r
+    }\r
+    return doc;\r
+  }\r
+    \r
+\r
+}\r