1 files changed, 74 insertions, 0 deletions
diff --git a/common/src/main/java/org/onap/policy/clamp/common/acm/rest/CoderHttpMesageConverter.java b/common/src/main/java/org/onap/policy/clamp/common/acm/rest/CoderHttpMesageConverter.java
new file mode 100644
index 000000000..f445364ad
--- /dev/null
+++ b/common/src/main/java/org/onap/policy/clamp/common/acm/rest/CoderHttpMesageConverter.java
@@ -0,0 +1,74 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.clamp.common.acm.rest;
+
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.nio.charset.StandardCharsets;
+import javax.ws.rs.core.Response;
+import org.onap.policy.clamp.common.acm.exception.AutomationCompositionRuntimeException;
+import org.onap.policy.common.utils.coder.Coder;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardCoder;
+import org.onap.policy.common.utils.coder.StandardYamlCoder;
+import org.springframework.http.HttpInputMessage;
+import org.springframework.http.HttpOutputMessage;
+import org.springframework.http.MediaType;
+import org.springframework.http.converter.AbstractHttpMessageConverter;
+import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.http.converter.HttpMessageNotWritableException;
+
+public class CoderHttpMesageConverter<T> extends AbstractHttpMessageConverter<T> {
+
+    private Coder coder;
+
+    public CoderHttpMesageConverter(String type) {
+        super(new MediaType("application", type, StandardCharsets.UTF_8));
+        this.coder = "json".equals(type) ? new StandardCoder() : new StandardYamlCoder();
+    }
+
+    @Override
+    protected boolean supports(Class<?> clazz) {
+        return true;
+    }
+
+    @Override
+    protected T readInternal(Class<? extends T> clazz, HttpInputMessage inputMessage)
+            throws IOException, HttpMessageNotReadableException {
+        try (var is = new InputStreamReader(inputMessage.getBody(), StandardCharsets.UTF_8)) {
+            return coder.decode(is, clazz);
+        } catch (CoderException e) {
+            throw new AutomationCompositionRuntimeException(Response.Status.BAD_REQUEST, e.getMessage(), e);
+        }
+    }
+
+    @Override
+    protected void writeInternal(T t, HttpOutputMessage outputMessage)
+            throws IOException, HttpMessageNotWritableException {
+        try (var writer = new OutputStreamWriter(outputMessage.getBody(), StandardCharsets.UTF_8)) {
+            coder.encode(writer, t);
+        } catch (CoderException e) {
+            throw new AutomationCompositionRuntimeException(Response.Status.BAD_REQUEST, e.getMessage(), e);
+        }
+    }
+
+}