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 / pazpar2 / commands / sp / CategoriesCommand.java

diff --git a/src/main/java/com/indexdata/mkjsf/pazpar2/commands/sp/CategoriesCommand.java b/src/main/java/com/indexdata/mkjsf/pazpar2/commands/sp/CategoriesCommand.java
new file mode 100644 (file)
index 0000000..e94ce26
--- /dev/null
+++ b/src/main/java/com/indexdata/mkjsf/pazpar2/commands/sp/CategoriesCommand.java
@@ -0,0 +1,72 @@
+package com.indexdata.mkjsf.pazpar2.commands.sp;\r
+\r
+import org.apache.log4j.Logger;\r
+\r
+import com.indexdata.mkjsf.pazpar2.Pz2Service;\r
+import com.indexdata.mkjsf.pazpar2.commands.Pazpar2Command;\r
+import com.indexdata.mkjsf.pazpar2.data.sp.CategoriesResponse;\r
+\r
+/**\r
+ * Represents a Service Proxy <code>categories</code> command, can be accessed by <code>pzreq.sp.categories</code>\r
+ * \r
+ * <p>Retrieves target categories available to the current Service Proxy user.</p> \r
+ * <p>Target categories can be used to limit a search to resources tagged with the given \r
+ * category. The following request in a Faces page would obtain categories for display in, say, a select list:\r
+ * <p>\r
+ *  <code>pzreq.sp.categories.run().targetCategories</code>   \r
+ * <p>\r
+ * This would get the Service Proxy extension commands, pick the categories command, execute it, and retrieve\r
+ *  a list of TargetCategory objects from the returned response data object.  \r
+ * </p>\r
+ * @author Niels Erik\r
+ *\r
+ */\r
+public class CategoriesCommand extends Pazpar2Command implements ServiceProxyCommand {\r
+\r
+  private static final long serialVersionUID = 5023993689780291641L;\r
+  private static Logger logger = Logger.getLogger(CategoriesCommand.class);\r
+\r
+  public CategoriesCommand() {\r
+    super("categories");\r
+  }\r
+  \r
+  @Override\r
+  public CategoriesResponse run () {\r
+    if (Pz2Service.get().getPzresp().getSp().getCategories().unsupportedCommand()) {\r
+      logger.info("Skipping seemingly unsupported categories command");  \r
+      return new CategoriesResponse();\r
+    } else {\r
+      if (Pz2Service.get().isServiceProxyService()) {\r
+        try {\r
+          CategoriesResponse response = (CategoriesResponse) super.run();\r
+          if (response.unsupportedCommand()) {\r
+            logger.warn("Command 'categories' not supported by this Service Proxy");          \r
+          }\r
+          return response;\r
+        } catch (Exception e) {\r
+          e.printStackTrace();\r
+          return new CategoriesResponse();\r
+        }\r
+      } else {\r
+        return new CategoriesResponse();\r
+      }\r
+    }\r
+  }\r
+\r
+  @Override\r
+  public Pazpar2Command copy() {\r
+    CategoriesCommand newCommand = new CategoriesCommand();\r
+    return newCommand;\r
+  }\r
+\r
+  @Override\r
+  public ServiceProxyCommand getSp() {\r
+    return this;\r
+  }\r
+\r
+  @Override\r
+  public boolean spOnly() {\r
+    return true;\r
+  }\r
+\r
+}\r