MONDRIAN: [MONDRIAN-861] Adds a method to SegmentCache in order to ob…

…tain a list of segments present in the cache. [git-p4: depot-paths = "//open/mondrian/": change = 14094]
pentaho · Feb 4, 2011 · 778fd8e · 778fd8e
1 parent 4c1d815
commit 778fd8e
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diff --git a/src/main/mondrian/rolap/agg/SegmentCache.java b/src/main/mondrian/rolap/agg/SegmentCache.java
@@ -10,6 +10,7 @@
 */
 package mondrian.rolap.agg;
 
+import java.util.List;
 import java.util.concurrent.Future;
 
 import mondrian.olap.MondrianProperties;
@@ -52,6 +53,13 @@ public interface SegmentCache {
      */
     Future<Boolean> contains(SegmentHeader header);
 
+    /**
+     * Returns a list of all segments present in the cache.
+     * @return A List of segment headers describing the
+     * contents of the cache.
+     */
+    Future<List<SegmentHeader>> getSegmentHeaders();
+
     /**
      * Stores a segment data in the cache.
      * @return A Future object which returns true or false

diff --git a/testsrc/main/mondrian/rolap/agg/MockSegmentCache.java b/testsrc/main/mondrian/rolap/agg/MockSegmentCache.java
@@ -100,5 +100,17 @@ public Boolean call() throws Exception {
         executor.submit(task);
         return task;
     }
+
+    public Future<List<SegmentHeader>> getSegmentHeaders() {
+        FutureTask<List<SegmentHeader>> task =
+            new FutureTask<List<SegmentHeader>>(
+                new Callable<List<SegmentHeader>>() {
+                    public List<SegmentHeader> call() throws Exception {
+                        return new ArrayList<SegmentHeader>(cache.keySet());
+                    }
+                });
+        executor.submit(task);
+        return task;
+    }
 }
 // End MockSegmentCache.java