[Fix apache#3767] Supporting open api functions with File as parameter (

#75)

kogito-workitems/kogito-jackson-utils/src/main/java/org/kie/kogito/jackson/utils/CommonObjectModule.java

@@ -0,0 +1,64 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.kie.kogito.jackson.utils;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URI;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.module.SimpleModule;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+class CommonObjectModule extends SimpleModule {
+
+    private static final long serialVersionUID = 1L;
+
+    public CommonObjectModule() {
+        this.addDeserializer(URI.class, new JsonDeserializer<URI>() {
+            @Override
+            public URI deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
+                return URI.create(fromNode(p));
+            }
+        });
+
+        this.addDeserializer(File.class, new JsonDeserializer<File>() {
+            @Override
+            public File deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
+                return new File(fromNode(p));
+            }
+        });
+    }
+
+    private static String fromNode(JsonParser p) throws IOException {
+        JsonNode node = p.readValueAsTree();
+        if (node.isTextual()) {
+            return node.asText();
+        } else if (node.isObject()) {
+            return ((ObjectNode) node).iterator().next().asText();
+        } else if (node.isArray()) {
+            return node.get(0).asText();
+        } else {
+            throw new IOException("Cannot extract string from node " + node);
+        }
+    }
+}

kogito-workitems/kogito-jackson-utils/src/main/java/org/kie/kogito/jackson/utils/ObjectMapperFactory.java

@@ -38,6 +38,7 @@ private static class DefaultObjectMapper {
                 .setSerializationInclusion(JsonInclude.Include.NON_NULL)
                 .setTypeFactory(TypeFactory.defaultInstance().withClassLoader(Thread.currentThread().getContextClassLoader()))
                 .registerModule(JsonFormat.getCloudEventJacksonModule())
+                .registerModule(new CommonObjectModule())
                 .findAndRegisterModules();
     }
 

kogito-workitems/kogito-jackson-utils/src/test/java/org/kie/kogito/jackson/utils/JsonObjectUtilsTest.java

@@ -18,6 +18,8 @@
  */
 package org.kie.kogito.jackson.utils;
 
+import java.io.File;
+import java.net.URI;
 import java.util.Arrays;
 import java.util.Collections;
 
@@ -28,6 +30,7 @@
 import com.fasterxml.jackson.databind.node.FloatNode;
 import com.fasterxml.jackson.databind.node.IntNode;
 import com.fasterxml.jackson.databind.node.NullNode;
+import com.fasterxml.jackson.databind.node.TextNode;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -82,4 +85,27 @@ void testJavaByteArray() {
         byte[] bytes = { 1, 2, 3, 4 };
         assertThat((byte[]) JsonObjectUtils.toJavaValue(BinaryNode.valueOf(bytes))).isEqualTo(bytes);
     }
+
+    @Test
+    void testURI() {
+        final String uri = "www.google.com";
+        assertThat(JsonObjectUtils.convertValue(ObjectMapperFactory.get().createObjectNode().put("uri", uri), URI.class)).isEqualTo(URI.create(uri));
+        assertThat(JsonObjectUtils.convertValue(new TextNode(uri), URI.class)).isEqualTo(URI.create(uri));
+    }
+
+    @Test
+    void testFile() {
+        final String file = "/home/myhome/sample.txt";
+        final String additionalData = "Javierito";
+        assertThat(JsonObjectUtils.convertValue(ObjectMapperFactory.get().createObjectNode().put("file", file), File.class)).isEqualTo(new File(file));
+        assertThat(JsonObjectUtils.convertValue(ObjectMapperFactory.get().createObjectNode().put("file", file).put("additionalData", additionalData), PseudoPOJO.class))
+                .isEqualTo(new PseudoPOJO(additionalData, new File(file)));
+        assertThat(JsonObjectUtils.convertValue(new TextNode(file), File.class)).isEqualTo(new File(file));
+    }
+
+    private static record PseudoPOJO(String additionalData, File file) {
+    }
+
+    private static record Person(String name) {
+    }
 }