diff options
author | 2019-09-09 16:51:32 -0400 | |
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committer | 2019-09-11 15:32:01 -0400 | |
commit | 173c4dbea9a1175a6f18031a221bb701deeecaa7 (patch) | |
tree | cff8d6fc46b6096b551b075e489b406c50b61531 /policy-endpoints/src/main/java/org/onap | |
parent | 216b2beaf25eba50e948374d07e92b6c0a02b7c9 (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/onap')
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); + } + } +} |