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authorJim Hahn <jrh3@att.com>2019-09-09 16:51:32 -0400
committerJim Hahn <jrh3@att.com>2019-09-11 15:32:01 -0400
commit173c4dbea9a1175a6f18031a221bb701deeecaa7 (patch)
treecff8d6fc46b6096b551b075e489b406c50b61531 /policy-endpoints/src/main/java/org
parent216b2beaf25eba50e948374d07e92b6c0a02b7c9 (diff)
Create StandardYamlCoder
Created StandardYamlCoder which is like a StandardCoder, except that the original converts to/from JSON, while the new class converts to/from YAML. Also added YamlMessageBodyHandler and incorporated it into the http server so that it supports a media type of */yaml. Change-Id: Ibd83a9f6d355a330f63e435f2bb41affcf1947c2 Issue-ID: POLICY-2065 Signed-off-by: Jim Hahn <jrh3@att.com>
Diffstat (limited to 'policy-endpoints/src/main/java/org')
-rw-r--r--policy-endpoints/src/main/java/org/onap/policy/common/endpoints/http/server/RestServer.java3
-rw-r--r--policy-endpoints/src/main/java/org/onap/policy/common/endpoints/http/server/YamlMessageBodyHandler.java110
2 files changed, 112 insertions, 1 deletions
diff --git a/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/http/server/RestServer.java b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/http/server/RestServer.java
index 2368c0b8..decf95f9 100644
--- a/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/http/server/RestServer.java
+++ b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/http/server/RestServer.java
@@ -99,7 +99,8 @@ public class RestServer extends ServiceManagerContainer {
props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_AAF_SUFFIX,
String.valueOf(restServerParameters.isAaf()));
props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_SERIALIZATION_PROVIDER,
- String.join(",", GsonMessageBodyHandler.class.getName(), JsonExceptionMapper.class.getName()));
+ String.join(",", GsonMessageBodyHandler.class.getName(), YamlMessageBodyHandler.class.getName(),
+ JsonExceptionMapper.class.getName()));
return props;
}
diff --git a/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/http/server/YamlMessageBodyHandler.java b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/http/server/YamlMessageBodyHandler.java
new file mode 100644
index 00000000..ab09c1a6
--- /dev/null
+++ b/policy-endpoints/src/main/java/org/onap/policy/common/endpoints/http/server/YamlMessageBodyHandler.java
@@ -0,0 +1,110 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.common.endpoints.http.server;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Type;
+import java.nio.charset.StandardCharsets;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.MultivaluedMap;
+import javax.ws.rs.ext.MessageBodyReader;
+import javax.ws.rs.ext.MessageBodyWriter;
+import javax.ws.rs.ext.Provider;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardYamlCoder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Provider that serializes and de-serializes JSON via gson.
+ */
+@Provider
+@Consumes(MediaType.WILDCARD)
+@Produces(MediaType.WILDCARD)
+public class YamlMessageBodyHandler implements MessageBodyReader<Object>, MessageBodyWriter<Object> {
+
+ public static final Logger logger = LoggerFactory.getLogger(YamlMessageBodyHandler.class);
+
+ /**
+ * Constructs the object.
+ */
+ public YamlMessageBodyHandler() {
+ logger.info("Accepting YAML for REST calls");
+ }
+
+ @Override
+ public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+ return canHandle(mediaType);
+ }
+
+ @Override
+ public long getSize(Object object, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+ return -1;
+ }
+
+ @Override
+ public void writeTo(Object object, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType,
+ MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException {
+
+ try (OutputStreamWriter writer = new OutputStreamWriter(entityStream, StandardCharsets.UTF_8)) {
+ new StandardYamlCoder().encode(writer, object);
+
+ } catch (CoderException e) {
+ throw new IOException(e);
+ }
+ }
+
+ @Override
+ public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
+ return canHandle(mediaType);
+ }
+
+ /**
+ * Determines if this provider can handle the given media type.
+ *
+ * @param mediaType the media type of interest
+ * @return {@code true} if this provider handles the given media type, {@code false}
+ * otherwise
+ */
+ private boolean canHandle(MediaType mediaType) {
+ return (mediaType != null && "yaml".equalsIgnoreCase(mediaType.getSubtype()));
+ }
+
+ @Override
+ public Object readFrom(Class<Object> type, Type genericType, Annotation[] annotations, MediaType mediaType,
+ MultivaluedMap<String, String> httpHeaders, InputStream entityStream) throws IOException {
+
+ try (InputStreamReader streamReader = new InputStreamReader(entityStream, StandardCharsets.UTF_8)) {
+ Class<?> clazz = (Class<?>) genericType;
+ return new StandardYamlCoder().decode(streamReader, clazz);
+
+ } catch (CoderException e) {
+ throw new IOException(e);
+ }
+ }
+}