MNT-23864 Add unavailableTransformer status

remote-api/src/main/java/org/alfresco/repo/web/scripts/solr/NodeContentGet.java

@@ -2,7 +2,7 @@
  * #%L
  * Alfresco Remote API
  * %%
- * Copyright (C) 2005 - 2023 Alfresco Software Limited
+ * Copyright (C) 2005 - 2024 Alfresco Software Limited
  * %%
  * This file is part of the Alfresco software. 
  * If the software was purchased under a paid Alfresco license, the terms of 
@@ -27,6 +27,7 @@ package org.alfresco.repo.web.scripts.solr;
 
 import org.alfresco.model.ContentModel;
 import org.alfresco.repo.content.MimetypeMap;
+import org.alfresco.repo.content.transform.UnavailableTransformerException;
 import org.alfresco.repo.content.transform.UnsupportedTransformationException;
 import org.alfresco.repo.domain.node.NodeDAO;
 import org.alfresco.repo.rendition2.SynchronousTransformClient;
@@ -200,6 +201,12 @@ public class NodeContentGet extends StreamContent
         }
         catch (Exception e)
         {
+            if(e.getCause() instanceof UnavailableTransformerException)
+            {
+                res.setHeader(TRANSFORM_STATUS_HEADER, "unavailableTransformer");
+                res.setStatus(HttpStatus.SC_NO_CONTENT);
+                return;
+            }
             transformException = e;
         }
 

repository/src/main/java/org/alfresco/repo/content/transform/RemoteTransformerClient.java

@@ -2,7 +2,7 @@
  * #%L
  * Alfresco Repository
  * %%
- * Copyright (C) 2005 - 2019 Alfresco Software Limited
+ * Copyright (C) 2005 - 2024 Alfresco Software Limited
  * %%
  * This file is part of the Alfresco software.
  * If the software was purchased under a paid Alfresco license, the terms of
@@ -200,7 +200,7 @@ public class RemoteTransformerClient
                     // forces a wait before trying again.
                     connectionFailed();
                     logHttpClientTimeoutException(e, logger);
-                    throw new AlfrescoRuntimeException(name + " failed to connect or to read the response", e);
+                    throw new UnavailableTransformerException(name + " failed to connect or to read the response", e);
                 }
             }
             catch (IOException e)

repository/src/main/java/org/alfresco/repo/content/transform/UnavailableTransformerException.java

@@ -0,0 +1,43 @@
+/*
+ * #%L
+ * Alfresco Repository
+ * %%
+ * Copyright (C) 2005 - 2024 Alfresco Software Limited
+ * %%
+ * This file is part of the Alfresco software.
+ * If the software was purchased under a paid Alfresco license, the terms of
+ * the paid license agreement will prevail.  Otherwise, the software is
+ * provided under the following open source license terms:
+ *
+ * Alfresco is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Alfresco is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ * #L%
+ */
+package org.alfresco.repo.content.transform;
+
+import org.alfresco.error.AlfrescoRuntimeException;
+
+public class UnavailableTransformerException extends AlfrescoRuntimeException
+{
+    private static final long serialVersionUID = 6580643557731842995L;
+
+    public UnavailableTransformerException(String msgId)
+    {
+        super(msgId);
+    }
+
+    public UnavailableTransformerException(String msgId, Exception e)
+    {
+        super(msgId, e);
+    }
+}