LMS-1924 access to dataset directory in the overview plugin

SVN: 19120

datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/DatasetImageOverviewServlet.java

@@ -16,6 +16,7 @@
 
 package ch.systemsx.cisd.openbis.dss.generic.server;
 
+import java.io.File;
 import java.io.IOException;
 import java.util.Properties;
 
@@ -111,7 +112,7 @@ public class DatasetImageOverviewServlet extends AbstractDatasetDownloadServlet
             ensureDatasetAccessible(datasetCode, session, sessionId);
 
             ResponseContentStream responseStream =
-                    createImageResponse(datasetCode, datasetTypeCode, resolution);
+                    createImageResponse(session, datasetCode, datasetTypeCode, resolution);
 
             if (responseStream != null && operationLog.isDebugEnabled())
             {
@@ -127,12 +128,13 @@ public class DatasetImageOverviewServlet extends AbstractDatasetDownloadServlet
         }
     }
 
-    private ResponseContentStream createImageResponse(String datasetCode, String datasetTypeCode,
-            ImageResolutionKind resolution)
+    private ResponseContentStream createImageResponse(HttpSession session, String datasetCode,
+            String datasetTypeCode, ImageResolutionKind resolution)
     {
-        final IDatasetImageOverviewPlugin plugin =
+        File datasetRoot = createDataSetRootDirectory(datasetCode, session);
+        IDatasetImageOverviewPlugin plugin =
                 configuration.getDatasetImageOverviewPlugin(datasetTypeCode);
-        return plugin.createImageResponse(datasetCode, datasetTypeCode, resolution);
+        return plugin.createImageOverview(datasetCode, datasetTypeCode, datasetRoot, resolution);
     }
 
     // static initialization is used to simplify usage of properties

datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/IDatasetImageOverviewPlugin.java

@@ -16,6 +16,8 @@
 
 package ch.systemsx.cisd.openbis.dss.generic.server;
 
+import java.io.File;
+
 import ch.systemsx.cisd.openbis.generic.shared.basic.dto.ImageResolutionKind;
 
 /**
@@ -27,9 +29,10 @@ public interface IDatasetImageOverviewPlugin
 {
 
     /**
+     * @param datasetRoot directory in the store where dataset can be found.
      * @return {@link ResponseContentStream} with an image in given resolution for specified dataset
      */
-    ResponseContentStream createImageResponse(String datasetCode, String datasetTypeCode,
-            ImageResolutionKind resolution);
+    ResponseContentStream createImageOverview(String datasetCode, String datasetTypeCode,
+            File datasetRoot, ImageResolutionKind resolution);
 
 }

datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/plugins/demo/DemoOverviewPlugin.java

@@ -55,8 +55,8 @@ public class DemoOverviewPlugin implements IDatasetImageOverviewPlugin
         label = PropertyUtils.getProperty(properties, LABEL_PROPERTY_KEY, "(no label)");
     }
 
-    public ResponseContentStream createImageResponse(String datasetCode, String datasetTypeCode,
-            ImageResolutionKind resolution)
+    public ResponseContentStream createImageOverview(String datasetCode, String datasetTypeCode,
+            File datasetRoot, ImageResolutionKind resolution)
     {
         System.out.println(String.format("%s (%s): create image for\n"
                 + "\tdataset code: %s\n\tdataset type: %s\n\tresolution: %s", this.getClass()