/**
* Deserialize response body to Java object, according to the return type and the Content-Type
* response header.
*
* @param <T> Type
* @param response HTTP response
* @param returnType The type of the Java object
* @return The deserialized Java object
* @throws ApiException If fail to deserialize response body, i.e. cannot read response body or
* the Content-Type of the response is not supported.
*/
@SuppressWarnings("unchecked")
public <T> T deserialize(Response response, Type returnType) throws ApiException {
if (response == null || returnType == null) {
return null;
}
if ("byte[]".equals(returnType.toString())) {
// Handle binary response (byte array).
try {
return (T) response.body().bytes();
} catch (IOException e) {
throw new ApiException(e);
}
} else if (returnType.equals(File.class)) {
// Handle file downloading.
return (T) downloadFileFromResponse(response);
}
String respBody;
try {
if (response.body() != null) respBody = response.body().string();
else respBody = null;
} catch (IOException e) {
throw new ApiException(e);
}
if (respBody == null || "".equals(respBody)) {
return null;
}
String contentType = response.headers().get("Content-Type");
if (contentType == null) {
// ensuring a default content type
contentType = "application/json";
}
if (isJsonMime(contentType)) {
return json.deserialize(respBody, returnType);
} else if (returnType.equals(String.class)) {
// Expecting string, return the raw response body.
return (T) respBody;
} else {
throw new ApiException(
"Content type \"" + contentType + "\" is not supported for type: " + returnType,
response.code(),
response.headers().toMultimap(),
respBody);
}
}
/** Deserialize response body to Java object according to the Content-Type. */
public <T> T deserialize(Response response, TypeRef returnType) throws ApiException {
String contentType = null;
List<Object> contentTypes = response.getHeaders().get("Content-Type");
if (contentTypes != null && !contentTypes.isEmpty()) contentType = (String) contentTypes.get(0);
if (contentType == null) throw new ApiException(500, "missing Content-Type in response");
String body;
if (response.hasEntity()) body = (String) response.readEntity(String.class);
else body = "";
if (contentType.startsWith("application/json")) {
return json.deserialize(body, returnType);
} else {
throw new ApiException(500, "can not deserialize Content-Type: " + contentType);
}
}
