Merge branch 'develop' into releases/Release_2_9_1_Branch

[jalview.git] / src / jalview / ws / SequenceFetcherFactory.java

diff --git a/src/jalview/ws/SequenceFetcherFactory.java b/src/jalview/ws/SequenceFetcherFactory.java
new file mode 100644 (file)
index 0000000..2b8f364
--- /dev/null
+++ b/src/jalview/ws/SequenceFetcherFactory.java
@@ -0,0 +1,32 @@
+package jalview.ws;
+
+import jalview.ws.seqfetcher.ASequenceFetcher;
+
+public class SequenceFetcherFactory
+{
+
+  private static SequenceFetcher instance;
+
+  /**
+   * Returns a new SequenceFetcher object, or a mock object if one has been set
+   * 
+   * @return
+   */
+  public static ASequenceFetcher getSequenceFetcher()
+  {
+    return instance == null ? new SequenceFetcher() : instance;
+  }
+
+  /**
+   * Set the instance object to use (intended for unit testing with mock
+   * objects).
+   * 
+   * Be sure to reset to null in the tearDown method of any tests!
+   * 
+   * @param sf
+   */
+  public static void setSequenceFetcher(SequenceFetcher sf)
+  {
+    instance = sf;
+  }
+}