public <T> T execute(Command<T> command) {
ClientRequest restRequest = new ClientRequest(url);
try {
restRequest.body(MediaType.APPLICATION_XML, new JaxbCommandsRequest(deploymentId, command));
ClientResponse<Object> response = restRequest.post(Object.class);
if (response.getResponseStatus() == Status.OK) {
JaxbCommandsResponse commandResponse = response.getEntity(JaxbCommandsResponse.class);
List<JaxbCommandResponse<?>> responses = commandResponse.getResponses();
if (responses.size() == 0) {
return null;
} else if (responses.size() == 1) {
JaxbCommandResponse<?> responseObject = responses.get(0);
if (responseObject instanceof JaxbExceptionResponse) {
JaxbExceptionResponse exceptionResponse = (JaxbExceptionResponse) responseObject;
String causeMessage = exceptionResponse.getCauseMessage();
throw new RuntimeException(
exceptionResponse.getMessage()
+ (causeMessage == null ? "" : " Caused by: " + causeMessage));
} else {
return (T) responseObject.getResult();
}
} else {
throw new RuntimeException("Unexpected number of results: " + responses.size());
}
} else {
// TODO error handling
throw new RuntimeException("REST request error code " + response.getResponseStatus());
}
} catch (Exception e) {
throw new RuntimeException("Unable to execute REST request: " + e.getMessage(), e);
}
}
private void checkResponse(ClientResponse<?> responseObj) throws Exception {
ClientResponse<?> test = BaseClientResponse.copyFromError(responseObj);
responseObj.resetStream();
if (test.getResponseStatus() == javax.ws.rs.core.Response.Status.BAD_REQUEST) {
throw new BadRequestException(test.getEntity(String.class));
} else if (test.getResponseStatus() != javax.ws.rs.core.Response.Status.OK) {
throw new Exception(
"Request operation failed. Response status = "
+ test.getResponseStatus()
+ "\n\n"
+ test.getEntity(String.class));
} else {
logger.debug("Response: " + test.getEntity(String.class));
}
}
private <T> T doHttpMethod(String url, Class<T> clazz, MediaType accept, HTTPCommand<T> command) {
ClientRequest request = createClientRequest(url);
request.accept(accept);
ClientResponse<T> result = null;
try {
addParams(request);
result = command.execute(request, clazz);
if (result.getResponseStatus() == Response.Status.OK
|| result.getResponseStatus() == Response.Status.ACCEPTED) {
T entity;
LOGGER.info(
"O servico '{}' respondeu com a seguinte mensagem: {}",
url,
(entity = result.getEntity(clazz)).toString());
return entity;
}
} catch (Exception e) {
LOGGER.warn("Erro durante chamada na URL: {}.", url, e);
} finally {
releaseConnection(result);
}
return null;
}
public Status doGet(String url, MediaType mediaType) throws Exception {
ClientRequest request = createClientRequest(url);
ClientResponse<String> result = null;
try {
if (mediaType != null) {
request.accept(mediaType);
}
addParams(request);
result = request.get(String.class);
LOGGER.info("O servico '{}' respondeu com a seguinte mensagem: {}.", url, result.getEntity());
return result.getResponseStatus();
} catch (Exception e) {
LOGGER.warn("Erro durante chamada ao metodo GET da URL: {}.", url, e);
throw e;
} finally {
releaseConnection(result);
}
}
public <T> OpenStackResponse request(OpenStackRequest<T> request) {
ClientRequest client =
new ClientRequest(
UriBuilder.fromUri(request.endpoint() + "/" + request.path()),
ClientRequest.getDefaultExecutor(),
providerFactory);
for (Map.Entry<String, List<Object>> entry : request.queryParams().entrySet()) {
for (Object o : entry.getValue()) {
client = client.queryParameter(entry.getKey(), String.valueOf(o));
}
}
for (Entry<String, List<Object>> h : request.headers().entrySet()) {
StringBuilder sb = new StringBuilder();
for (Object v : h.getValue()) {
sb.append(String.valueOf(v));
}
client.header(h.getKey(), sb);
}
if (request.entity() != null) {
client.body(request.entity().getContentType(), request.entity().getEntity());
}
ClientResponse<T> response;
try {
response = client.httpMethod(request.method().name(), request.returnType());
} catch (Exception e) {
throw new RuntimeException("Unexpected client exception", e);
}
if (response.getStatus() == HttpStatus.SC_OK
|| response.getStatus() == HttpStatus.SC_CREATED
|| response.getStatus() == HttpStatus.SC_NO_CONTENT) {
return new RESTEasyResponse(response);
}
response.releaseConnection();
throw new OpenStackResponseException(
response.getResponseStatus().getReasonPhrase(), response.getStatus());
}
public Status doPut(String url, MediaType mediaType) throws Exception {
ClientRequest request = createClientRequest(url);
ClientResponse<String> result = null;
try {
addParams(request);
String type;
if (mediaType != null) {
LOGGER.info(String.format("Content-Type:%s", type = mediaType.toString()));
} else {
LOGGER.info(String.format("Content-Type:%s", type = "text/plain"));
}
addBody(request, type);
result = request.put(String.class);
LOGGER.info("O servico '{}' respondeu com a seguinte mensagem: {}.", url, result.getEntity());
return result.getResponseStatus();
} catch (Exception e) {
LOGGER.warn("Erro durante chamada ao metodo PUT da URL: {}.", url, e);
throw e;
} finally {
releaseConnection(result);
}
}
private void assertStatus(ClientResponse response, Status expected) {
assertEquals("incorrect status", expected, response.getResponseStatus());
}
