Addition of CustomTransformers with default [skip ci]

engines/base/src/main/java/org/alfresco/transform/base/registry/CustomTransformers.java

@@ -0,0 +1,83 @@
+/*
+ * #%L
+ * Alfresco Transform Core
+ * %%
+ * Copyright (C) 2022 - 2022 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.transform.base.registry;
+
+import org.alfresco.transform.base.CustomTransformer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.PostConstruct;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@Component
+public class CustomTransformers
+{
+    private static final Logger logger = LoggerFactory.getLogger(CustomTransformers.class);
+
+    @Autowired(required = false)
+    private List<CustomTransformer> customTransformers;
+
+    private final Map<String, CustomTransformer> customTransformersByName = new HashMap<>();
+
+    private CustomTransformer defaultCustomTransformer;
+
+    @PostConstruct
+    private void initCustomTransformersByName()
+    {
+        if (customTransformers != null)
+        {
+            customTransformers.forEach(customTransformer ->
+                   customTransformersByName.put(customTransformer.getTransformerName(), customTransformer));
+
+            logger.info("Transformers:");
+            customTransformers.stream()
+                  .sorted(Comparator.comparing(CustomTransformer::getTransformerName))
+                  .map(customTransformer -> "  "+customTransformer.getTransformerName()).forEach(logger::info);
+        }
+    }
+
+    public void setDefaultCustomTransformer(CustomTransformer defaultCustomTransformer)
+    {
+        this.defaultCustomTransformer = defaultCustomTransformer;
+    }
+
+    public CustomTransformer get(String name)
+    {
+        CustomTransformer customTransformer = customTransformersByName.get(name);
+        return customTransformer == null ? defaultCustomTransformer : customTransformer;
+    }
+
+    public void put(String name, CustomTransformer  customTransformer)
+    {
+        customTransformersByName.put(name, customTransformer);
+    }
+}

engines/base/src/main/java/org/alfresco/transform/base/transform/ProcessHandler.java

@@ -30,6 +30,7 @@ import org.alfresco.transform.base.CustomTransformer;
 import org.alfresco.transform.base.TransformController;
 import org.alfresco.transform.base.logging.LogEntry;
 import org.alfresco.transform.base.probes.ProbeTransform;
+import org.alfresco.transform.base.registry.CustomTransformers;
 import org.alfresco.transform.client.model.TransformRequest;
 import org.alfresco.transform.common.TransformException;
 import org.alfresco.transform.common.TransformerDebug;
@@ -48,7 +49,6 @@ import java.util.Map;
 import java.util.stream.Collectors;
 
 import static org.alfresco.transform.common.RequestParamMap.DIRECT_ACCESS_URL;
-import static org.alfresco.transform.common.RequestParamMap.SOURCE_ENCODING;
 import static org.alfresco.transform.common.RequestParamMap.SOURCE_EXTENSION;
 import static org.alfresco.transform.common.RequestParamMap.SOURCE_MIMETYPE;
 import static org.alfresco.transform.common.RequestParamMap.TARGET_EXTENSION;
@@ -76,11 +76,11 @@ abstract class ProcessHandler extends FragmentHandler
     private final TransformServiceRegistry transformRegistry;
     private final TransformerDebug transformerDebug;
     private final ProbeTransform probeTransform;
-    private final Map<String, CustomTransformer> customTransformersByName;
+    private final CustomTransformers customTransformers;
 
     ProcessHandler(String sourceMimetype, String targetMimetype, Map<String, String> transformOptions,
         String reference, TransformServiceRegistry transformRegistry, TransformerDebug transformerDebug,
-        ProbeTransform probeTransform, Map<String, CustomTransformer> customTransformersByName)
+        ProbeTransform probeTransform, CustomTransformers customTransformers)
     {
         this.sourceMimetype = sourceMimetype;
         this.targetMimetype = targetMimetype;
@@ -90,7 +90,7 @@ abstract class ProcessHandler extends FragmentHandler
         this.transformRegistry = transformRegistry;
         this.transformerDebug = transformerDebug;
         this.probeTransform = probeTransform;
-        this.customTransformersByName = customTransformersByName;
+        this.customTransformers = customTransformers;
     }
 
     private static Map<String, String> cleanTransformOptions(Map<String, String> requestParameters)
@@ -198,7 +198,7 @@ abstract class ProcessHandler extends FragmentHandler
 
     private CustomTransformer getCustomTransformer(String transformName)
     {
-        CustomTransformer customTransformer = customTransformersByName.get(transformName);
+        CustomTransformer customTransformer = customTransformers.get(transformName);
         if (customTransformer == null)
         {
             throw new TransformException(INTERNAL_SERVER_ERROR, "Custom Transformer "+transformName+" not found");

engines/base/src/main/java/org/alfresco/transform/base/transform/TransformHandler.java

@@ -26,12 +26,12 @@
  */
 package org.alfresco.transform.base.transform;
 
-import org.alfresco.transform.base.CustomTransformer;
 import org.alfresco.transform.base.TransformEngine;
 import org.alfresco.transform.base.clients.AlfrescoSharedFileStoreClient;
 import org.alfresco.transform.base.messaging.TransformReplySender;
 import org.alfresco.transform.base.model.FileRefResponse;
 import org.alfresco.transform.base.probes.ProbeTransform;
+import org.alfresco.transform.base.registry.CustomTransformers;
 import org.alfresco.transform.client.model.InternalContext;
 import org.alfresco.transform.client.model.TransformReply;
 import org.alfresco.transform.client.model.TransformRequest;
@@ -53,7 +53,6 @@ import org.springframework.validation.Errors;
 import org.springframework.web.client.HttpClientErrorException;
 import org.springframework.web.multipart.MultipartFile;
 
-import javax.annotation.PostConstruct;
 import javax.jms.Destination;
 import javax.servlet.http.HttpServletRequest;
 import java.io.BufferedInputStream;
@@ -65,8 +64,6 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
-import java.util.Comparator;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicInteger;
@@ -93,7 +90,7 @@ public class TransformHandler
     @Autowired(required = false)
     private List<TransformEngine> transformEngines;
     @Autowired(required = false)
-    private List<CustomTransformer> customTransformers;
+    private CustomTransformers customTransformers;
     @Autowired
     private AlfrescoSharedFileStoreClient alfrescoSharedFileStoreClient;
     @Autowired
@@ -106,22 +103,6 @@ public class TransformHandler
     private TransformerDebug transformerDebug;
 
     private final AtomicInteger httpRequestCount = new AtomicInteger(1);
-    private final Map<String, CustomTransformer> customTransformersByName = new HashMap<>();
-
-    @PostConstruct
-    private void initCustomTransformersByName()
-    {
-        if (customTransformers != null)
-        {
-            customTransformers.forEach(customTransformer ->
-                    customTransformersByName.put(customTransformer.getTransformerName(), customTransformer));
-
-            logger.info("Transformers:");
-            customTransformers.stream()
-                              .sorted(Comparator.comparing(CustomTransformer::getTransformerName))
-                              .map(customTransformer -> "  "+customTransformer.getTransformerName()).forEach(logger::info);
-        }
-    }
 
     public ResponseEntity<Resource> handleHttpRequest(HttpServletRequest request,
             MultipartFile sourceMultipartFile, String sourceMimetype, String targetMimetype,
@@ -131,7 +112,7 @@ public class TransformHandler
 
         new ProcessHandler(sourceMimetype, targetMimetype, requestParameters,
             "e" + httpRequestCount.getAndIncrement(), transformRegistry,
-            transformerDebug, probeTransform, customTransformersByName)
+            transformerDebug, probeTransform, customTransformers)
         {
             @Override
             protected void init() throws IOException
@@ -175,7 +156,7 @@ public class TransformHandler
     {
         new ProcessHandler(sourceMimetype, targetMimetype, transformOptions,
             "p" + httpRequestCount.getAndIncrement(), transformRegistry,
-            transformerDebug, probeTransform, customTransformersByName)
+            transformerDebug, probeTransform, customTransformers)
         {
             @Override
             protected void init() throws IOException
@@ -212,7 +193,7 @@ public class TransformHandler
         TransformReply reply = createBasicTransformReply(request);
         new ProcessHandler(request.getSourceMediaType(), request.getTargetMediaType(),
             request.getTransformRequestOptions(),"unset", transformRegistry,
-            transformerDebug, probeTransform, customTransformersByName)
+            transformerDebug, probeTransform, customTransformers)
         {
             @Override
             protected void init() throws IOException

engines/libreoffice/src/test/java/org/alfresco/transform/libreoffice/LibreOfficeTest.java

@@ -56,6 +56,7 @@ import java.util.Map;
 import java.util.UUID;
 
 import org.alfresco.transform.base.CustomTransformer;
+import org.alfresco.transform.base.registry.CustomTransformers;
 import org.alfresco.transform.client.model.TransformReply;
 import org.alfresco.transform.client.model.TransformRequest;
 import org.alfresco.transform.libreoffice.transformers.LibreOfficeTransformer;
@@ -89,6 +90,8 @@ public class LibreOfficeTest extends AbstractBaseTest
 
     @Autowired
     private LibreOfficeTransformer libreOfficeTransformer;
+    @Autowired
+    private CustomTransformers customTransformers;
 
     @Spy
     private LibreOfficeTransformer spyLibreOfficeTransformer;
@@ -111,8 +114,7 @@ public class LibreOfficeTest extends AbstractBaseTest
     @BeforeEach
     public void before() throws IOException
     {
-        var customTransformersByName = (Map<String, CustomTransformer>) ReflectionTestUtils.getField(transformHandler, "customTransformersByName");
-        customTransformersByName.put("libreoffice", spyLibreOfficeTransformer);
+        customTransformers.put("libreoffice", spyLibreOfficeTransformer);
 
         sourceExtension = "doc";
         targetExtension = "pdf";
@@ -157,8 +159,7 @@ public class LibreOfficeTest extends AbstractBaseTest
     @AfterEach
     public void after() throws IOException
     {
-        var customTransformersByName = (Map<String, CustomTransformer>) ReflectionTestUtils.getField(transformHandler, "customTransformersByName");
-        customTransformersByName.put("libreoffice", libreOfficeTransformer);
+        customTransformers.put("libreoffice", libreOfficeTransformer);
     }
 
     @Override