diff options
Diffstat (limited to 'service/src/main/java/org/onap/vfc/nfvo/multivimproxy/common/util/RestfulUtil.java')
-rw-r--r-- | service/src/main/java/org/onap/vfc/nfvo/multivimproxy/common/util/RestfulUtil.java | 390 |
1 files changed, 390 insertions, 0 deletions
diff --git a/service/src/main/java/org/onap/vfc/nfvo/multivimproxy/common/util/RestfulUtil.java b/service/src/main/java/org/onap/vfc/nfvo/multivimproxy/common/util/RestfulUtil.java new file mode 100644 index 0000000..c1c1189 --- /dev/null +++ b/service/src/main/java/org/onap/vfc/nfvo/multivimproxy/common/util/RestfulUtil.java @@ -0,0 +1,390 @@ +/* + * Copyright 2016-2017 Huawei Technologies Co., Ltd. + * + * 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. + */ + +package org.onap.vfc.nfvo.multivimproxy.common.util; + +import java.lang.invoke.MethodHandles; +import java.lang.invoke.MethodType; +import java.util.HashMap; +import java.util.Map; + +import javax.servlet.http.HttpServletResponse; + +import org.apache.commons.lang.StringUtils; +import org.onap.vfc.nfvo.multivimproxy.common.util.ResourceUtil; +import org.onap.vfc.nfvo.multivimproxy.common.constant.Constant; +import org.onap.vfc.nfvo.multivimproxy.common.constant.ParamConstant; +import org.onap.vfc.nfvo.multivimproxy.common.util.restclient.Restful; +import org.onap.vfc.nfvo.multivimproxy.common.util.restclient.RestfulAsyncCallback; +import org.onap.vfc.nfvo.multivimproxy.common.util.restclient.RestfulFactory; +import org.onap.vfc.nfvo.multivimproxy.common.util.restclient.RestfulOptions; +import org.onap.vfc.nfvo.multivimproxy.common.util.restclient.RestfulParametes; +import org.onap.vfc.nfvo.multivimproxy.common.util.restclient.RestfulResponse; +import org.onap.vfc.nfvo.multivimproxy.common.util.restclient.ServiceException; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import net.sf.json.JSONArray; +import net.sf.json.JSONException; +import net.sf.json.JSONObject; + +/** + * Restful Utility Class.<br> + * <p> + * </p> + * + * @author + * @version VFC 1.0 Sep 10, 2016 + */ +public class RestfulUtil { + + public static final String TYPE_GET = "get"; + + public static final String TYPE_PUT = "put"; + + public static final String TYPE_POST = "post"; + + public static final String TYPE_DEL = "delete"; + + public static final String CONTENT_TYPE = "Content-type"; + + public static final String APPLICATION = "application/json"; + + public static final String NO_RESULT_EXCEPTION = + "org.openo.nfvo.resmanage.service.group.resoperate.add.res.no.result"; + + private static final Logger LOGGER = LoggerFactory.getLogger(RestfulUtil.class); + + private static final Restful REST_CLIENT_HTTP = RestfulFactory.getRestInstance(RestfulFactory.PROTO_HTTP); + + private static final Restful REST_CLIENT_HTTPS = RestfulFactory.getRestInstance(RestfulFactory.PROTO_HTTPS); + + private RestfulUtil() { + } + + /** + * Get response object.<br> + * + * @param url + * @param type + * @return + * @since VFC 1.0 + */ + public static JSONObject getResponseObj(String url, String type) { + return getResponseObj(url, new RestfulParametes(), type); + } + + /** + * Get response object.<br> + * + * @param url + * @param parametes + * @param type + * @return + * @since VFC 1.0 + */ + public static JSONObject getResponseObj(String url, RestfulParametes parametes, String type) { + try { + String content = RestfulUtil.getResponseContent(url, parametes, null, type); + LOGGER.error("function=getResponseObj, content : {}", content); + if(StringUtils.isEmpty(content)) { + return null; + } + return JSONObject.fromObject(content); + } catch(JSONException e) { + LOGGER.error("function=getResponseObj, exception : {}", e); + return null; + } + } + + /** + * Get response content.<br> + * + * @param url + * @param restParametes + * @param type + * @return + * @since VFC 1.0 + */ + public static String getResponseContent(String url, RestfulParametes restParametes, String type) { + return getResponseContent(url, restParametes, null, type); + } + + /** + * Get response map.<br> + * + * @param url + * @param restParametes + * @param opt + * @param type + * @return + * @since VFC 1.0 + */ + public static Map<String, Object> getResponseMap(String url, RestfulParametes restParametes, RestfulOptions opt, + String type) { + RestfulResponse response = restfulResponse(url, restParametes, opt, type); + return getResponseMap(response); + } + + /** + * Get response content map.<br> + * + * @param url + * @param type + * @return + * @since VFC 1.0 + */ + public static Map<String, Object> getResponseContentMap(String url, String type) { + RestfulResponse response = restfulResponse(url, new RestfulParametes(), null, type); + return getResponseMap(response); + } + + private static Map<String, Object> getResponseMap(RestfulResponse response) { + Map<String, Object> resMap = new HashMap<>(10); + if(null != response) { + resMap.put(Constant.RESPONSE_CONTENT, response.getResponseContent()); + resMap.put(Constant.STATUS_CODE, response.getStatus()); + } + return resMap; + } + + /** + * Get response content.<br> + * + * @param url + * @param restParametes + * @param opt + * @param type + * @return + * @since VFC 1.0 + */ + public static String getResponseContent(String url, RestfulParametes restParametes, RestfulOptions opt, + String type) { + String responseContent = null; + RestfulResponse rsp = restfulResponse(url, restParametes, opt, type); + if(rsp != null) { + int httpStatus = rsp.getStatus(); + LOGGER.warn("function=getResponseContent, get response httpStatusCode : {} ", httpStatus); + if(httpStatus < HttpServletResponse.SC_BAD_REQUEST && httpStatus > 0) { + responseContent = rsp.getResponseContent(); + LOGGER.warn("function=getResponseContent, get response data success!responseContent={}", + responseContent); + } + } + return responseContent; + } + + public static RestfulResponse getResponse(String url, RestfulParametes restParametes, RestfulOptions opt, + String type) { + String responseContent = null; + RestfulResponse rsp = restfulResponse(url, restParametes, opt, type); + if(rsp != null) { + int httpStatus = rsp.getStatus(); + LOGGER.warn("function=getResponseContent, get response httpStatusCode : {} ", httpStatus); + if(httpStatus < HttpServletResponse.SC_BAD_REQUEST && httpStatus > 0) { + responseContent = rsp.getResponseContent(); + LOGGER.warn("function=getResponseContent, get response data success!responseContent={}", + responseContent); + } + } + return rsp; + } + + /** + * Get restful response.<br> + * + * @param url + * @param restParametes + * @param type + * @return + * @since VFC 1.0 + */ + public static RestfulResponse getRestfulResponse(String url, RestfulParametes restParametes, String type) { + return restfulResponse(url, restParametes, null, type); + } + + private static RestfulResponse restfulResponse(String url, RestfulParametes restParametes, RestfulOptions opt, + String type) { + RestfulResponse rsp = new RestfulResponse(); + try { + Restful restClient = url.startsWith("https") ? REST_CLIENT_HTTPS : REST_CLIENT_HTTP; + + if(restClient != null) { + if(TYPE_GET.equals(type)) { + rsp = restClient.get(url, restParametes, opt); + } else if(TYPE_POST.equals(type)) { + rsp = restClient.post(url, restParametes, opt); + } else if(TYPE_PUT.equals(type)) { + rsp = restClient.put(url, restParametes, opt); + } else if(TYPE_DEL.equals(type)) { + rsp = restClient.delete(url, restParametes, opt); + } + } + } catch(ServiceException e) { + LOGGER.error("function=restfulResponse, get restful response catch exception {} ", e); + } + LOGGER.warn("function=restfulResponse, response status is {}, context is {} ", rsp.getStatus(), + rsp.getResponseContent()); + return rsp; + } + + /** + * encapsulate the java reflect exception.<br> + * + * @param methodName, Restful's method. + * @param objects, method param array. + * @return + * @since VFC 1.0 + */ + public static RestfulResponse getRestRes(String methodName, Object... objects) { + try { + if(objects == null || REST_CLIENT_HTTP == null) { + return null; + } + + Class<?>[] classes = new Class[objects.length]; + for(int i = 0; i < objects.length; i++) { + classes[i] = objects[i].getClass(); + } + if(methodName.startsWith("async")) { + classes[classes.length - 1] = RestfulAsyncCallback.class; + } + + Class<?> rtType = methodName.startsWith("async") ? void.class : RestfulResponse.class; + MethodType mt = MethodType.methodType(rtType, classes); + Object result = MethodHandles.lookup().findVirtual(REST_CLIENT_HTTP.getClass(), methodName, mt) + .bindTo(REST_CLIENT_HTTP).invokeWithArguments(objects); + if(result != null) { + return (RestfulResponse)result; + } + LOGGER.warn("function=getRestRes, msg: invoke Restful async {} method which return type is Void.", + methodName); + return null; + } catch(ReflectiveOperationException e) { + LOGGER.error("function=getRestRes, msg=error occurs, e={}.", e); + } catch(Throwable e) {// NOSONAR + LOGGER.error("function=getRestRes, msg=Throwable, e={}.", e); + try { + throw (ServiceException)new ServiceException().initCause(e.getCause()); + } catch(ServiceException se) { + LOGGER.error("function=getRestRes, msg=ServiceException occurs, e={}.", se); + } + } + return null; + } + + /** + * Get response.<br> + * + * @param restParametes + * @param url + * @return + * @throws ServiceException + * @since VFC 1.0 + */ + public static JSONArray getResponseRes(RestfulParametes restParametes, String url) throws ServiceException { + String result = getResponseContent(url, restParametes, RestfulUtil.TYPE_GET); + if(null == result || result.isEmpty()) { + LOGGER.error("result from url:" + url + " result:" + result); + throw new ServiceException(ResourceUtil.getMessage(NO_RESULT_EXCEPTION)); + } + + JSONArray rsArray = null; + try { + JSONObject rsJson = JSONObject.fromObject(result); + rsArray = rsJson.getJSONArray(ParamConstant.PARAM_DATA); + } catch(JSONException e) { + LOGGER.error("getResources error:" + e); + throw new ServiceException(ResourceUtil.getMessage(NO_RESULT_EXCEPTION)); + } + return rsArray; + } + + /** + * Get response.<br> + * + * @param restParametes + * @param url + * @param iResName + * @return + * @throws ServiceException + * @since VFC 1.0 + */ + public static JSONArray getResponseRes(RestfulParametes restParametes, String url, String iResName) + throws ServiceException { + String result = getResponseContent(url, restParametes, RestfulUtil.TYPE_GET); + if(null == result || result.isEmpty()) { + LOGGER.error("result from url:" + url + " result:" + result); + throw new ServiceException(ResourceUtil.getMessage(NO_RESULT_EXCEPTION)); + } + + JSONArray rsArray = null; + try { + JSONObject rsJson = JSONObject.fromObject(result); + rsArray = rsJson.getJSONArray(iResName); + String vimId = rsJson.getString(ParamConstant.PARAM_VIMID); + String vimName = rsJson.getString(ParamConstant.PARAM_VIMNAME); + for(int i = 0; i < rsArray.size(); i++) { + JSONObject jsonObj = rsArray.getJSONObject(i); + jsonObj.put(ParamConstant.PARAM_VIMID, vimId); + jsonObj.put(ParamConstant.PARAM_VIMNAME, vimName); + } + } catch(JSONException e) { + LOGGER.error("getResources error:" + e); + throw new ServiceException(ResourceUtil.getMessage(NO_RESULT_EXCEPTION)); + } + return rsArray; + } + + /** + * <br> + * + * @param paramsMap + * @param params + * @return + * @since VFC 1.0 + */ + public static RestfulResponse getRemoteResponse(Map<String, String> paramsMap, String params) { + String url = paramsMap.get("url"); + String methodType = paramsMap.get("methodType"); + + RestfulResponse rsp = null; + Restful rest = RestfulFactory.getRestInstance(RestfulFactory.PROTO_HTTP); + try { + + RestfulParametes restfulParametes = new RestfulParametes(); + Map<String, String> headerMap = new HashMap<>(3); + headerMap.put(CONTENT_TYPE, APPLICATION); + restfulParametes.setHeaderMap(headerMap); + restfulParametes.setRawData(params); + + if(rest != null) { + if(TYPE_GET.equalsIgnoreCase(methodType)) { + rsp = rest.get(url, restfulParametes); + } else if(TYPE_POST.equalsIgnoreCase(methodType)) { + rsp = rest.post(url, restfulParametes); + } else if(TYPE_PUT.equalsIgnoreCase(methodType)) { + rsp = rest.put(url, restfulParametes); + } else if(TYPE_DEL.equalsIgnoreCase(methodType)) { + rsp = rest.delete(url, restfulParametes); + } + } + } catch(ServiceException e) { + LOGGER.error("function=getRemoteResponse, get restful response catch exception {}", e); + } + return rsp; + } +} |