# HG changeset patch
# User Ingo Weinzierl <ingo.weinzierl@intevation.de>
# Date 1301568968 0
# Node ID 53c155bfde07acf9e18d6cc329f8d6f6d9c90121
# Parent  e5e7af20885773ad23e1b4bdc918b4c32ca14184
Added code to parse the configured OutGenerators in the global configuration and to save a map of such in the FLYSContext.

flys-artifacts/trunk@1633 c6561f87-3c4e-4783-a992-168aeb5c3f6f

diff -r e5e7af208857 -r 53c155bfde07 flys-artifacts/ChangeLog
--- a/flys-artifacts/ChangeLog	Thu Mar 31 10:54:07 2011 +0000
+++ b/flys-artifacts/ChangeLog	Thu Mar 31 10:56:08 2011 +0000
@@ -1,3 +1,12 @@
+2011-03-31  Ingo Weinzierl <ingo@intevation.de>
+
+	* src/main/java/de/intevation/flys/artifacts/context/FLYSContextFactory.java:
+	  Added code to parse the configured OutGenerators and to save them (in a
+	  map) in the FLYSContext.
+
+	* src/main/java/de/intevation/flys/artifacts/context/FLYSContext.java:
+	  Added a key that is used to save the OutGenerators Map in the context.
+
 2011-03-31  Ingo Weinzierl <ingo@intevation.de>
 
 	* src/main/java/de/intevation/flys/exports/OutGenerator.java:
diff -r e5e7af208857 -r 53c155bfde07 flys-artifacts/src/main/java/de/intevation/flys/artifacts/context/FLYSContext.java
--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/context/FLYSContext.java	Thu Mar 31 10:54:07 2011 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/context/FLYSContext.java	Thu Mar 31 10:56:08 2011 +0000
@@ -25,6 +25,11 @@
     public static final String STATE_ENGINE_KEY =
         "artifact.state.engine";
 
+    /** The key that is used to store the Map of OutGenerator classes in the
+     * context.*/
+    public static final String OUTGENERATORS_KEY =
+        "flys.export.outgenerators";
+
 
     /**
      * The default constructor.
diff -r e5e7af208857 -r 53c155bfde07 flys-artifacts/src/main/java/de/intevation/flys/artifacts/context/FLYSContextFactory.java
--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/context/FLYSContextFactory.java	Thu Mar 31 10:54:07 2011 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/context/FLYSContextFactory.java	Thu Mar 31 10:56:08 2011 +0000
@@ -2,7 +2,9 @@
 
 import java.io.File;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 import javax.xml.xpath.XPathConstants;
 
@@ -10,6 +12,7 @@
 
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
+import org.w3c.dom.Node;
 import org.w3c.dom.NodeList;
 
 import de.intevation.artifacts.ArtifactContextFactory;
@@ -55,6 +58,9 @@
     public static final String XPATH_STATES =
         "/artifact/states/state";
 
+    public static final String XPATH_OUTPUT_GENERATORS =
+        "/artifact-database/output-generators/output-generator";
+
     /**
      * Creates a new FLYSArtifactContext object and initialize all
      * components required by the application.
@@ -67,6 +73,7 @@
 
         configureTransitions(config, context);
         configureStates(config, context);
+        configureOutGenerators(config, context);
 
         return context;
     }
@@ -186,5 +193,58 @@
 
         context.put(FLYSContext.STATE_ENGINE_KEY, engine);
     }
+
+
+    /**
+     * This method intializes the provided output generators.
+     *
+     * @param config the config document.
+     * @param context the FLYSContext.
+     */
+    protected void configureOutGenerators(Document config, FLYSContext context){
+        Map<String, Class> generators = new HashMap<String, Class>();
+
+        NodeList outGenerators = (NodeList) XMLUtils.xpath(
+            config,
+            XPATH_OUTPUT_GENERATORS,
+            XPathConstants.NODESET);
+
+        int num = outGenerators == null ? 0 : outGenerators.getLength();
+
+        if (num == 0) {
+            logger.warn("No output generators configured in this application.");
+            return;
+        }
+
+        logger.info("Found " + num + " configured output generators.");
+
+        int idx = 0;
+
+        for (int i = 0; i < num; i++) {
+            Node item = outGenerators.item(i);
+
+            String name = (String) XMLUtils.xpath(
+                item, "@name", XPathConstants.STRING);
+
+            String clazz = (String) XMLUtils.xpath(
+                item, "text()", XPathConstants.STRING);
+
+            if (name == null || clazz == null) {
+                continue;
+            }
+
+            try {
+                generators.put(name, Class.forName(clazz));
+
+                idx++;
+            }
+            catch (ClassNotFoundException cnfe) {
+                logger.warn(cnfe, cnfe);
+            }
+        }
+
+        logger.info("Successfully loaded " + idx + " output generators.");
+        context.put(FLYSContext.OUTGENERATORS_KEY, generators);
+    }
 }
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