added codegen for java OK Http Client (#1300)

* added codegen for  java OK Http Client

* shalika- added snapshot test for -codegen- java -ok http client

* shalika- moving JavaOkHttpClientCodegen in alphabetical order in codegen

helpers/codegen/__tests__/__snapshots__/codegen.spec.js.snap

@@ -182,6 +182,60 @@ if err != nil {
 "
 `;
 
+exports[`generate request for Java OkHTTP Client generate GET request 1`] = `
+"OkHttpClient client = new OkHttpClient().newBuilder().build();
+Request request = new Request.Builder()
+.url(\\"https://httpbin.org/path/to?a=b\\")
+.method(\\"GET\\", null)
+.addHeader(\\"authorization\\", \\"Basic bW9ja1VzZXI6bW9ja1Bhc3N3b3Jk\\") 
+
+.addHeader(\\"h1\\", \\"h1v\\")
+.addHeader(\\"h2\\", \\"h2v\\")
+.build();
+Response response = client.newCall(request).execute();"
+`;
+
+exports[`generate request for Java OkHTTP Client generate POST request for JSON 1`] = `
+"OkHttpClient client = new OkHttpClient().newBuilder().build();
+MediaType mediaType = MediaType.parse(\\"application/json\\");
+RequestBody body = RequestBody.create(mediaType,\\"{\\\\\\"foo\\\\\\": \\\\\\"bar\\\\\\", \\\\\\"baz\\\\\\": \\\\\\"qux\\\\\\"}\\");
+Request request = new Request.Builder()
+.url(\\"https://httpbin.org/path/to?a=b\\")
+.method(\\"POST\\", body)
+.addHeader(\\"authorization\\", \\"Bearer abcdefghijklmn\\" ) 
+
+.addHeader(\\"h1\\", \\"h1v\\")
+.addHeader(\\"h2\\", \\"h2v\\")
+.build();
+Response response = client.newCall(request).execute();"
+`;
+
+exports[`generate request for Java OkHTTP Client generate POST request for XML 1`] = `
+"OkHttpClient client = new OkHttpClient().newBuilder().build();
+MediaType mediaType = MediaType.parse(\\"application/xml\\");
+RequestBody body = RequestBody.create(mediaType,\\"<?xml version='1.0' encoding='utf-8'?>\\\\n<xml>\\\\n  <element foo=\\\\\\"bar\\\\\\"></element>\\\\n</xml>\\");
+Request request = new Request.Builder()
+.url(\\"https://httpbin.org/path/to?a=b\\")
+.method(\\"POST\\", body)
+.addHeader(\\"authorization\\", \\"Bearer abcdefghijklmn\\" ) 
+
+.addHeader(\\"h1\\", \\"h1v\\")
+.addHeader(\\"h2\\", \\"h2v\\")
+.build();
+Response response = client.newCall(request).execute();"
+`;
+
+exports[`generate request for Java OkHTTP Client generate PUT request for www-form-urlencoded 1`] = `
+"OkHttpClient client = new OkHttpClient().newBuilder().build();
+MediaType mediaType = MediaType.parse(\\"application/x-www-form-urlencoded\\");
+RequestBody body = RequestBody.create(mediaType,\\"foo=bar&baz=qux\\");
+Request request = new Request.Builder()
+.url(\\"https://httpbin.org/path/to?a=b\\")
+.method(\\"PUT\\", body)
+.build();
+Response response = client.newCall(request).execute();"
+`;
+
 exports[`generate request for JavaScript Axios generate GET request 1`] = `
 "axios.get('https://httpbin.org/path/to?a=b',{ 
  headers : {    \\"h1\\": \\"h1v\\",

helpers/codegen/codegen.js

@@ -15,6 +15,7 @@ import { CsRestSharpCodegen } from "./generators/cs-restsharp"
 import { RubyNetHttpCodeGen } from "./generators/ruby-net-http"
 import { SalesforceApexCodegen } from "./generators/salesforce-apex"
 import { ShellHTTPie } from "./generators/shell-httpie"
+import { JavaOkHttpClientCodegen } from "./generators/java-ok-http-client"
 
 /* Register code generators here.
  * A code generator is defined as an object with the following structure.
@@ -28,6 +29,7 @@ export const codegens = [
   CurlCodegen,
   CsRestSharpCodegen,
   GoNativeCodegen,
+  JavaOkHttpClientCodegen,
   JSAxiosCodegen,
   JSFetchCodegen,
   JSjQueryCodegen,

helpers/codegen/generators/java-ok-http-client.js

@@ -0,0 +1,64 @@
+export const JavaOkHttpClientCodegen = {
+  id: "Java OkHTTP Client",
+  name: "Java OkHTTP Client",
+  generator: ({
+    auth,
+    httpUser,
+    httpPassword,
+    method,
+    url,
+    pathName,
+    queryString,
+    bearerToken,
+    headers,
+    rawInput,
+    rawParams,
+    rawRequestBody,
+    contentType,
+  }) => {
+    const requestString = []
+
+    requestString.push("OkHttpClient client = new OkHttpClient().newBuilder().build();")
+
+    if (["POST", "PUT", "PATCH", "DELETE"].includes(method)) {
+      let requestBody = rawInput ? rawParams : rawRequestBody
+
+      if (contentType.includes("x-www-form-urlencoded")) {
+        requestBody = `"${requestBody}"`
+      } else requestBody = JSON.stringify(requestBody)
+
+      requestString.push(`MediaType mediaType = MediaType.parse("${contentType}");`)
+      requestString.push(`RequestBody body = RequestBody.create(mediaType,${requestBody});`)
+    }
+
+    requestString.push("Request request = new Request.Builder()")
+    requestString.push(`.url(\"${url}${pathName}${queryString}\")`)
+
+    if (["POST", "PUT", "PATCH", "DELETE"].includes(method)) {
+      requestString.push(`.method(\"${method}\", body)`)
+    } else {
+      requestString.push(`.method(\"${method}\", null)`)
+    }
+
+    if (auth === "Basic Auth") {
+      const basic = `${httpUser}:${httpPassword}`
+      requestString.push(
+        `.addHeader("authorization", "Basic ${window.btoa(
+          unescape(encodeURIComponent(basic))
+        )}") \n`
+      )
+    } else if (auth === "Bearer Token" || auth === "OAuth 2.0") {
+      requestString.push(`.addHeader("authorization", "Bearer ${bearerToken}" ) \n`)
+    }
+
+    if (headers) {
+      headers.forEach(({ key, value }) => {
+        if (key) requestString.push(`.addHeader(\"${key}\", \"${value}\")`)
+      })
+    }
+
+    requestString.push(`.build();`)
+    requestString.push("Response response = client.newCall(request).execute();")
+    return requestString.join("\n")
+  },
+}