Add ManyFormDatasWriter

.travis.yml

@@ -2,7 +2,7 @@
 language: java
 
 jdk:
-  - oraclejdk8
+  - openjdk8
 
 install:
   ./mvnw --settings .settings.xml install -DskipTests=true -Dmaven.javadoc.skip=true -Dgpg.skip -B -V

feign-form/src/main/java/feign/form/MultipartFormContentProcessor.java

@@ -33,12 +33,13 @@
 import feign.codec.Encoder;
 import feign.form.multipart.ByteArrayWriter;
 import feign.form.multipart.DelegateWriter;
-import feign.form.multipart.FormDataWriter;
 import feign.form.multipart.ManyFilesWriter;
+import feign.form.multipart.ManyFormDatasWriter;
 import feign.form.multipart.ManyParametersWriter;
 import feign.form.multipart.Output;
 import feign.form.multipart.PojoWriter;
 import feign.form.multipart.SingleFileWriter;
+import feign.form.multipart.SingleFormDataWriter;
 import feign.form.multipart.SingleParameterWriter;
 import feign.form.multipart.Writer;
 
@@ -64,7 +65,8 @@ public class MultipartFormContentProcessor implements ContentProcessor {
   public MultipartFormContentProcessor (Encoder delegate) {
     writers = new LinkedList<Writer>();
     addWriter(new ByteArrayWriter());
-    addWriter(new FormDataWriter());
+    addWriter(new SingleFormDataWriter());
+    addWriter(new ManyFormDatasWriter());
     addWriter(new SingleFileWriter());
     addWriter(new ManyFilesWriter());
     addWriter(new SingleParameterWriter());

feign-form/src/main/java/feign/form/multipart/ManyFormDatasWriter.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright 2019 the original author or authors.
+ *
+ * Licensed 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 feign.form.multipart;
+
+import static lombok.AccessLevel.PRIVATE;
+
+import feign.codec.EncodeException;
+
+import feign.form.FormData;
+import lombok.experimental.FieldDefaults;
+import lombok.val;
+
+/**
+ *
+ * @author Sébastien Etronnier
+ */
+@FieldDefaults(level = PRIVATE, makeFinal = true)
+public class ManyFormDatasWriter extends AbstractWriter {
+
+  SingleFormDataWriter formDataWriter = new SingleFormDataWriter();
+
+  @Override
+  public boolean isApplicable (Object value) {
+    if (value instanceof FormData[]) {
+      return true;
+    }
+    if (!(value instanceof Iterable)) {
+      return false;
+    }
+    val iterable = (Iterable<?>) value;
+    val iterator = iterable.iterator();
+    return iterator.hasNext() && iterator.next() instanceof FormData;
+  }
+
+  @Override
+  public void write (Output output, String boundary, String key, Object value) throws EncodeException {
+    if (value instanceof FormData[]) {
+      val formDatas = (FormData[]) value;
+      for (val formData : formDatas) {
+        formDataWriter.write(output, boundary, key, formData);
+      }
+    } else if (value instanceof Iterable) {
+      val iterable = (Iterable<?>) value;
+      for (val formData : iterable) {
+        formDataWriter.write(output, boundary, key, formData);
+      }
+    } else {
+      throw new IllegalArgumentException();
+    }
+  }
+}

feign-form/src/main/java/feign/form/multipart/SingleFormDataWriter.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2019 the original author or authors.
+ *
+ * Licensed 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 feign.form.multipart;
+
+import feign.codec.EncodeException;
+import feign.form.FormData;
+
+import lombok.val;
+
+/**
+ *
+ * @author Guillaume Simard
+ * @since 24.03.2018
+ */
+public class SingleFormDataWriter extends AbstractWriter {
+
+  @Override
+  public boolean isApplicable (Object value) {
+    return value instanceof FormData;
+  }
+
+  @Override
+  protected void write (Output output, String key, Object value) throws EncodeException {
+    val formData = (FormData) value;
+    writeFileMetadata(output, key, formData.getFileName(), formData.getContentType());
+    output.write(formData.getData());
+  }
+}