001package ca.uhn.fhir.okhttp.client;
002
003import ca.uhn.fhir.rest.api.RequestTypeEnum;
004import ca.uhn.fhir.rest.client.api.BaseHttpRequest;
005import ca.uhn.fhir.rest.client.api.IHttpRequest;
006import ca.uhn.fhir.rest.client.api.IHttpResponse;
007import ca.uhn.fhir.util.StopWatch;
008import okhttp3.Call;
009import okhttp3.Call.Factory;
010import okhttp3.Request;
011import okhttp3.RequestBody;
012
013import java.io.IOException;
014import java.util.Collections;
015import java.util.List;
016import java.util.Map;
017
018/*
019 * #%L
020 * HAPI FHIR OkHttp Client
021 * %%
022 * Copyright (C) 2014 - 2021 Smile CDR, Inc.
023 * %%
024 * Licensed under the Apache License, Version 2.0 (the "License");
025 * you may not use this file except in compliance with the License.
026 * You may obtain a copy of the License at
027 *
028 *      http://www.apache.org/licenses/LICENSE-2.0
029 *
030 * Unless required by applicable law or agreed to in writing, software
031 * distributed under the License is distributed on an "AS IS" BASIS,
032 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
033 * See the License for the specific language governing permissions and
034 * limitations under the License.
035 * #L%
036 */
037
038/**
039 * Adapter for building an OkHttp-specific request.
040 *
041 * @author Matthew Clarke | matthew.clarke@orionhealth.com | Orion Health
042 */
043public class OkHttpRestfulRequest extends BaseHttpRequest implements IHttpRequest {
044
045    private final Request.Builder myRequestBuilder;
046    private Factory myClient;
047    private String myUrl;
048    private RequestTypeEnum myRequestTypeEnum;
049    private RequestBody myRequestBody;
050
051    public OkHttpRestfulRequest(Call.Factory theClient, String theUrl, RequestTypeEnum theRequestTypeEnum, RequestBody theRequestBody) {
052        myClient = theClient;
053        myUrl = theUrl;
054        myRequestTypeEnum = theRequestTypeEnum;
055        myRequestBody = theRequestBody;
056
057        myRequestBuilder = new Request.Builder().url(theUrl);
058    }
059
060    public Request.Builder getRequest() {
061        return myRequestBuilder;
062    }
063
064    @Override
065    public void addHeader(String theName, String theValue) {
066        myRequestBuilder.addHeader(theName, theValue);
067    }
068
069    @Override
070    public IHttpResponse execute() throws IOException {
071                 StopWatch responseStopWatch = new StopWatch();
072                 myRequestBuilder.method(getHttpVerbName(), myRequestBody);
073                 Call call = myClient.newCall(myRequestBuilder.build());
074                 return new OkHttpRestfulResponse(call.execute(), responseStopWatch);
075    }
076
077    @Override
078    public Map<String, List<String>> getAllHeaders() {
079        return Collections.unmodifiableMap(myRequestBuilder.build().headers().toMultimap());
080    }
081
082    @Override
083    public String getRequestBodyFromStream() {
084        // returning null to indicate this is not supported, as documented in IHttpRequest's contract
085        return null;
086    }
087
088    @Override
089    public String getUri() {
090        return myUrl;
091    }
092
093        @Override
094        public void setUri(String theUrl) {
095                myUrl = theUrl;
096        }
097
098        @Override
099    public String getHttpVerbName() {
100        return myRequestTypeEnum.name();
101    }
102
103        @Override
104        public void removeHeaders(String theHeaderName) {
105        myRequestBuilder.removeHeader(theHeaderName);
106        }
107
108}