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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Modifications Copyright (c) 2019 Samsung
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.so.apihandler.common;
import java.io.IOException;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.util.EntityUtils;
import org.onap.so.apihandler.camundabeans.CamundaResponse;
import org.onap.so.apihandlerinfra.Constants;
import org.onap.so.apihandlerinfra.exceptions.ApiException;
import org.onap.so.apihandlerinfra.exceptions.BPMNFailureException;
import org.onap.so.apihandlerinfra.exceptions.ValidateException;
import org.onap.so.apihandlerinfra.logging.ErrorLoggerInfo;
import org.onap.so.logger.ErrorCode;
import org.onap.so.logger.MessageEnum;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ResponseHandler {
private CamundaResponse response;
private int status;
private String responseBody = "";
private HttpResponse httpResponse;
private int type;
private static Logger logger = LoggerFactory.getLogger(ResponseHandler.class);
public ResponseHandler(HttpResponse httpResponse, int type) throws ApiException {
this.httpResponse = httpResponse;
this.type = type;
parseResponse();
}
private void parseResponse() throws ApiException {
int statusCode = httpResponse.getStatusLine().getStatusCode();
status = setStatus(statusCode);
if (type == CommonConstants.CAMUNDA) {
parseCamunda();
} else if (type == CommonConstants.CAMUNDATASK) {
parseCamundaTask();
} else {
parseBpel();
}
}
private void parseCamunda() throws ApiException {
try {
HttpEntity entity = httpResponse.getEntity();
responseBody = EntityUtils.toString(entity);
} catch (IOException e) {
ErrorLoggerInfo errorLoggerInfo =
new ErrorLoggerInfo.Builder(MessageEnum.APIH_VALIDATION_ERROR, ErrorCode.SchemaError)
.errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
throw new ValidateException.Builder("IOException getting Camunda response body", HttpStatus.SC_BAD_REQUEST,
ErrorNumbers.SVC_BAD_PARAMETER).cause(e).errorInfo(errorLoggerInfo).build();
}
ObjectMapper mapper = new ObjectMapper();
try {
response = mapper.readValue(responseBody, CamundaResponse.class);
} catch (IOException e) {
ErrorLoggerInfo errorLoggerInfo =
new ErrorLoggerInfo.Builder(MessageEnum.APIH_REQUEST_VALIDATION_ERROR, ErrorCode.SchemaError)
.errorSource(Constants.MSO_PROP_APIHANDLER_INFRA).build();
throw new ValidateException.Builder("Cannot parse Camunda Response", HttpStatus.SC_BAD_REQUEST,
ErrorNumbers.SVC_BAD_PARAMETER).cause(e).errorInfo(errorLoggerInfo).build();
}
if (response != null) {
responseBody = response.getResponse();
} else {
ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_ERROR_FROM_BPEL_SERVER,
ErrorCode.BusinessProcesssError).targetEntity("Camunda").targetServiceName("parseCamunda").build();
BPMNFailureException bpmnFailureException =
new BPMNFailureException.Builder(String.valueOf(status), status, ErrorNumbers.ERROR_FROM_BPEL)
.errorInfo(errorLoggerInfo).build();
}
}
private void parseBpel() throws ApiException {
HttpEntity bpelEntity = httpResponse.getEntity();
try {
if (bpelEntity != null) {
responseBody = EntityUtils.toString(bpelEntity);
}
} catch (IOException e) {
ErrorLoggerInfo errorLoggerInfo =
new ErrorLoggerInfo.Builder(MessageEnum.APIH_GENERAL_EXCEPTION, ErrorCode.DataError).build();
throw new ValidateException.Builder("Could not convert BPEL response to string", HttpStatus.SC_BAD_REQUEST,
ErrorNumbers.SVC_BAD_PARAMETER).cause(e).errorInfo(errorLoggerInfo).build();
}
if (status != HttpStatus.SC_ACCEPTED) {
ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_ERROR_FROM_BPEL_SERVER,
ErrorCode.BusinessProcesssError).targetEntity("BPEL").targetServiceName("parseBpel").build();
throw new BPMNFailureException.Builder(String.valueOf(status), status, ErrorNumbers.ERROR_FROM_BPEL)
.errorInfo(errorLoggerInfo).build();
}
}
private void parseCamundaTask() throws ApiException {
HttpEntity camundataskEntity = httpResponse.getEntity();
try {
if (camundataskEntity != null) {
responseBody = EntityUtils.toString(camundataskEntity);
}
} catch (IOException e) {
ErrorLoggerInfo errorLoggerInfo =
new ErrorLoggerInfo.Builder(MessageEnum.APIH_GENERAL_EXCEPTION, ErrorCode.DataError).build();
throw new ValidateException.Builder("Could not convert CamundaTask response to string",
HttpStatus.SC_BAD_REQUEST, ErrorNumbers.SVC_BAD_PARAMETER).cause(e).errorInfo(errorLoggerInfo)
.build();
}
if (status != HttpStatus.SC_NO_CONTENT && status != HttpStatus.SC_ACCEPTED) {
ErrorLoggerInfo errorLoggerInfo = new ErrorLoggerInfo.Builder(MessageEnum.APIH_ERROR_FROM_BPEL_SERVER,
ErrorCode.BusinessProcesssError).targetEntity("CAMUNDATASK").targetServiceName("parseCamundaTask")
.build();
throw new BPMNFailureException.Builder(String.valueOf(status), status, ErrorNumbers.ERROR_FROM_BPEL)
.errorInfo(errorLoggerInfo).build();
}
}
private int setStatus(int statusCode) {
int httpStatus;
switch (statusCode) {
case HttpStatus.SC_ACCEPTED:
case HttpStatus.SC_OK:
httpStatus = HttpStatus.SC_ACCEPTED;
break;
case HttpStatus.SC_BAD_REQUEST:
httpStatus = HttpStatus.SC_BAD_REQUEST;
break;
case HttpStatus.SC_UNAUTHORIZED:
case HttpStatus.SC_FORBIDDEN:
httpStatus = HttpStatus.SC_INTERNAL_SERVER_ERROR;
break;
case HttpStatus.SC_NOT_FOUND:
httpStatus = HttpStatus.SC_NOT_IMPLEMENTED;
break;
case HttpStatus.SC_INTERNAL_SERVER_ERROR:
httpStatus = HttpStatus.SC_BAD_GATEWAY;
break;
case HttpStatus.SC_SERVICE_UNAVAILABLE:
httpStatus = HttpStatus.SC_SERVICE_UNAVAILABLE;
break;
case HttpStatus.SC_NO_CONTENT:
httpStatus = HttpStatus.SC_NO_CONTENT;
break;
default:
httpStatus = HttpStatus.SC_INTERNAL_SERVER_ERROR;
break;
}
return httpStatus;
}
public CamundaResponse getResponse() {
return response;
}
public void setResponse(CamundaResponse response) {
this.response = response;
}
public String getResponseBody() {
return responseBody;
}
public void setResponseBody(String responseBody) {
this.responseBody = responseBody;
}
public int getStatus() {
return status;
}
}
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