gerrit.onap Code Review - so/libs.git/blob

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at
   6  *
   7  *      http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  * ============LICENSE_END=========================================================
  15  */
  16
  17 package com.woorea.openstack.connector;
  18
  19 import java.util.List;
  20 import java.util.Map;
  21 import java.util.logging.Logger;
  22
  23 import javax.ws.rs.core.MultivaluedMap;
  24 import javax.ws.rs.ext.ContextResolver;
  25 import javax.ws.rs.ext.Provider;
  26
  27 import com.fasterxml.jackson.annotation.JsonRootName;
  28 import com.fasterxml.jackson.annotation.JsonInclude.Include;
  29 import com.fasterxml.jackson.databind.DeserializationFeature;
  30 import com.fasterxml.jackson.databind.ObjectMapper;
  31 import com.fasterxml.jackson.databind.SerializationFeature;
  32 import com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider;
  33 import com.sun.jersey.api.client.Client;
  34 import com.sun.jersey.api.client.ClientResponse;
  35 import com.sun.jersey.api.client.UniformInterfaceException;
  36 import com.sun.jersey.api.client.WebResource;
  37 import com.sun.jersey.api.client.config.ClientConfig;
  38 import com.sun.jersey.api.client.config.DefaultClientConfig;
  39 import com.sun.jersey.client.impl.ClientRequestImpl;
  40 import com.sun.jersey.core.header.OutBoundHeaders;
  41 import com.woorea.openstack.base.client.OpenStackClientConnector;
  42 import com.woorea.openstack.base.client.OpenStackRequest;
  43 import com.woorea.openstack.base.client.OpenStackResponse;
  44 import com.woorea.openstack.base.client.OpenStackResponseException;
  45
  46 public class JerseyConnector implements OpenStackClientConnector {
  47
  48     protected Client client = null;
  49     protected boolean logPassword;
  50     private JerseyLoggingFilter logger = new JerseyLoggingFilter(Logger.getLogger("os"));
  51
  52     public JerseyConnector() {
  53         ClientConfig clientConfig = new DefaultClientConfig();
  54         clientConfig.getClasses().add(JacksonJaxbJsonProvider.class);
  55         clientConfig.getClasses().add(OpenStackObjectMapper.class);
  56         client = Client.create(clientConfig);
  57     }
  58
  59     @Override
  60     public <T> OpenStackResponse request(OpenStackRequest<T> request) {
  61         WebResource target = client.resource(request.endpoint()).path(request.path());
  62         for(Map.Entry<String, List<Object> > entry : request.queryParams().entrySet()) {
  63             for (Object o : entry.getValue()) {
  64                 target = target.queryParam(entry.getKey(), String.valueOf(o));
  65             }
  66         }
  67         target.addFilter(logger);
  68         MultivaluedMap<String, Object> headers = new OutBoundHeaders();
  69         for(Map.Entry<String, List<Object>> h : request.headers().entrySet()) {
  70             for(Object v : h.getValue()) {
  71                 headers.add(h.getKey(), v);
  72             }
  73         }
  74         if(request.entity() != null && request.entity().getContentType() != null) {
  75             headers.add("Content-Type", request.entity().getContentType());
  76         } else {
  77             headers.add("Content-Type", "application/json");
  78         }
  79         try {
  80             ClientResponse response;
  81             if (request.entity() != null && request.entity().getEntity() != null) {
  82                 response = target.getHeadHandler().handle(new ClientRequestImpl(target.getURI(), request.method().name(), request.entity().getEntity(), headers));
  83             } else {
  84                 response = target.getHeadHandler().handle(new ClientRequestImpl(target.getURI(), request.method().name(), null, headers));
  85             }
  86             return new JerseyResponse(response);
  87         } catch (UniformInterfaceException e) {
  88             throw new OpenStackResponseException(e.getResponse().getClientResponseStatus().getReasonPhrase(), e.getResponse().getStatus());
  89         }
  90     }
  91
  92     @Provider
  93     public static class OpenStackObjectMapper implements ContextResolver<ObjectMapper> {
  94         static ObjectMapper DEFAULT_MAPPER;
  95         static ObjectMapper WRAPPED_MAPPER;
  96         static {
  97             DEFAULT_MAPPER = new ObjectMapper();
  98             DEFAULT_MAPPER.setSerializationInclusion(Include.NON_NULL);
  99             DEFAULT_MAPPER.enable(SerializationFeature.INDENT_OUTPUT);
 100             DEFAULT_MAPPER.enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY);
 101             DEFAULT_MAPPER.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
 102             DEFAULT_MAPPER.enable(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT);
 103
 104             WRAPPED_MAPPER = new ObjectMapper();
 105             WRAPPED_MAPPER.setSerializationInclusion(Include.NON_NULL);
 106             WRAPPED_MAPPER.enable(SerializationFeature.INDENT_OUTPUT);
 107             WRAPPED_MAPPER.enable(SerializationFeature.WRAP_ROOT_VALUE);
 108             WRAPPED_MAPPER.enable(DeserializationFeature.UNWRAP_ROOT_VALUE);
 109             WRAPPED_MAPPER.enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY);
 110             WRAPPED_MAPPER.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
 111             WRAPPED_MAPPER.enable(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT);
 112         }
 113
 114         @Override
 115         public ObjectMapper getContext(Class<?> type) {
 116             return type.getAnnotation(JsonRootName.class) == null ? DEFAULT_MAPPER : WRAPPED_MAPPER;
 117         }
 118     }
 119 }