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 org.codehaus.jackson.jaxrs.JacksonJaxbJsonProvider;
  28 import org.codehaus.jackson.map.DeserializationConfig;
  29 import org.codehaus.jackson.map.ObjectMapper;
  30 import org.codehaus.jackson.map.SerializationConfig;
  31 import org.codehaus.jackson.map.annotate.JsonRootName;
  32 import org.codehaus.jackson.map.annotate.JsonSerialize.Inclusion;
  33
  34 import com.sun.jersey.api.client.Client;
  35 import com.sun.jersey.api.client.ClientResponse;
  36 import com.sun.jersey.api.client.UniformInterfaceException;
  37 import com.sun.jersey.api.client.WebResource;
  38 import com.sun.jersey.api.client.config.ClientConfig;
  39 import com.sun.jersey.api.client.config.DefaultClientConfig;
  40 import com.sun.jersey.client.impl.ClientRequestImpl;
  41 import com.sun.jersey.core.header.OutBoundHeaders;
  42 import com.woorea.openstack.base.client.OpenStackClientConnector;
  43 import com.woorea.openstack.base.client.OpenStackRequest;
  44 import com.woorea.openstack.base.client.OpenStackResponse;
  45 import com.woorea.openstack.base.client.OpenStackResponseException;
  46
  47 public class JerseyConnector implements OpenStackClientConnector {
  48
  49         protected Client client = null;
  50     protected boolean logPassword;
  51     private JerseyLoggingFilter logger = new JerseyLoggingFilter(Logger.getLogger("os"));
  52
  53         public JerseyConnector() {
  54                 ClientConfig clientConfig = new DefaultClientConfig();
  55                 clientConfig.getClasses().add(JacksonJaxbJsonProvider.class);
  56                 clientConfig.getClasses().add(OpenStackObjectMapper.class);
  57                 client = Client.create(clientConfig);
  58         }
  59
  60         @Override
  61         public <T> OpenStackResponse request(OpenStackRequest<T> request) {
  62                 WebResource target = client.resource(request.endpoint()).path(request.path());
  63                 for(Map.Entry<String, List<Object> > entry : request.queryParams().entrySet()) {
  64                         for (Object o : entry.getValue()) {
  65                                 target = target.queryParam(entry.getKey(), String.valueOf(o));
  66                         }
  67                 }
  68                 target.addFilter(logger);
  69                 MultivaluedMap<String, Object> headers = new OutBoundHeaders();
  70                 for(Map.Entry<String, List<Object>> h : request.headers().entrySet()) {
  71                         for(Object v : h.getValue()) {
  72                                 headers.add(h.getKey(), v);
  73                         }
  74                 }
  75                 if(request.entity() != null && request.entity().getContentType() != null) {
  76                         headers.add("Content-Type", request.entity().getContentType());
  77                 } else {
  78                         headers.add("Content-Type", "application/json");
  79                 }
  80                 try {
  81                         ClientResponse response = null;
  82                         if (request.entity() != null && request.entity().getEntity() != null) {
  83                                 response = target.getHeadHandler().handle(new ClientRequestImpl(target.getURI(), request.method().name(), request.entity().getEntity(), headers));
  84                         } else {
  85                                 response = target.getHeadHandler().handle(new ClientRequestImpl(target.getURI(), request.method().name(), null, headers));
  86                         }
  87                         return new JerseyResponse(response);
  88                 } catch (UniformInterfaceException e) {
  89                         throw new OpenStackResponseException(e.getResponse().getClientResponseStatus().getReasonPhrase(), e.getResponse().getStatus());
  90                 }
  91         }
  92
  93         @Provider
  94         public static class OpenStackObjectMapper implements ContextResolver<ObjectMapper> {
  95                 static ObjectMapper DEFAULT_MAPPER;
  96                 static ObjectMapper WRAPPED_MAPPER;
  97                 static {
  98                         DEFAULT_MAPPER = new ObjectMapper();
  99                         DEFAULT_MAPPER.setSerializationInclusion(Inclusion.NON_NULL);
 100                         DEFAULT_MAPPER.enable(SerializationConfig.Feature.INDENT_OUTPUT);
 101                         DEFAULT_MAPPER.enable(DeserializationConfig.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY);
 102                         DEFAULT_MAPPER.disable(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES);
 103                         DEFAULT_MAPPER.enable(DeserializationConfig.Feature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT);
 104
 105                         WRAPPED_MAPPER = new ObjectMapper();
 106                         WRAPPED_MAPPER.setSerializationInclusion(Inclusion.NON_NULL);
 107                         WRAPPED_MAPPER.enable(SerializationConfig.Feature.INDENT_OUTPUT);
 108                         WRAPPED_MAPPER.enable(SerializationConfig.Feature.WRAP_ROOT_VALUE);
 109                         WRAPPED_MAPPER.enable(DeserializationConfig.Feature.UNWRAP_ROOT_VALUE);
 110                         WRAPPED_MAPPER.enable(DeserializationConfig.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY);
 111                         WRAPPED_MAPPER.disable(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES);
 112                         WRAPPED_MAPPER.enable(DeserializationConfig.Feature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT);
 113                 }
 114
 115                 @Override
 116                 public ObjectMapper getContext(Class<?> type) {
 117                         return type.getAnnotation(JsonRootName.class) == null ? DEFAULT_MAPPER : WRAPPED_MAPPER;
 118                 }
 119         }
 120 }