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cloud.genesys.webmessaging.sdk.ApiClient Maven / Gradle / Ivy
package cloud.genesys.webmessaging.sdk;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.datatype.joda.JodaModule;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.net.Proxy;
import java.text.DateFormat;
import java.time.LocalDate;
import java.util.*;
import java.util.Map.Entry;
import com.google.common.base.Stopwatch;
import java.util.concurrent.TimeUnit;
import java.io.IOException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import cloud.genesys.webmessaging.sdk.auth.Authentication;
import cloud.genesys.webmessaging.sdk.auth.OAuth;
import cloud.genesys.webmessaging.sdk.connector.*;
public class ApiClient implements AutoCloseable {
private static final String DEFAULT_BASE_PATH = "https://api.mypurecloud.com";
private static final String DEFAULT_USER_AGENT = "PureCloud SDK/webmessagingjava";
private static final String USER_AGENT_HEADER = "User-Agent";
private static Map buildAuthentications() {
Map authentications = new HashMap<>();
return Collections.unmodifiableMap(authentications);
}
private final Map defaultHeaderMap;
private final String basePath;
private final Boolean shouldThrowErrors;
private final DateFormat dateFormat;
private final ObjectMapper objectMapper;
private final ConnectorProperties properties;
private final Map authentications;
private final ApiClientConnector connector;
private final RetryConfiguration retryConfiguration;
private static final RetryConfiguration DEFAULT_RETRY_CONFIG = new RetryConfiguration();
public ApiClient() {
this(Builder.standard());
}
private ApiClient(Builder builder) {
String basePath = builder.basePath;
if (basePath == null) {
basePath = DEFAULT_BASE_PATH;
}
this.basePath = basePath;
RetryConfiguration retryConfig = builder.retryConfiguration;
if (retryConfig == null) {
retryConfig = DEFAULT_RETRY_CONFIG;
}
this.retryConfiguration = retryConfig;
this.defaultHeaderMap = new HashMap<>(builder.defaultHeaderMap);
this.properties = builder.properties.copy();
this.shouldThrowErrors = builder.shouldThrowErrors == null ? true : builder.shouldThrowErrors;
DateFormat dateFormat = builder.dateFormat;
if (dateFormat == null) {
dateFormat = buildDateFormat();
}
this.dateFormat = dateFormat;
ObjectMapper objectMapper = builder.objectMapper;
if (objectMapper == null) {
objectMapper = buildObjectMapper(dateFormat);
}
this.objectMapper = objectMapper;
this.authentications = buildAuthentications(builder);
this.connector = buildHttpConnector(builder);
}
@Override
public void close() throws Exception {
connector.close();
}
public static ObjectMapper buildObjectMapper(DateFormat dateFormat) {
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
objectMapper.enable(SerializationFeature.WRITE_ENUMS_USING_TO_STRING);
objectMapper.enable(DeserializationFeature.READ_ENUMS_USING_TO_STRING);
objectMapper.registerModule(new JodaModule());
objectMapper.setDateFormat(dateFormat);
SimpleModule localDateModule = new SimpleModule();
localDateModule.addSerializer(LocalDate.class, new LocalDateSerializer());
localDateModule.addDeserializer(LocalDate.class, new LocalDateDeserializer());
objectMapper.registerModule(localDateModule);
return objectMapper;
}
private DateFormat buildDateFormat() {
return new ApiDateFormat();
}
private Map buildAuthentications(Builder builder) {
Map authentications = buildAuthentications();
String accessToken = builder.accessToken;
for (Authentication authentication : authentications.values()) {
if (authentication instanceof OAuth && accessToken != null) {
((OAuth)authentication).setAccessToken(accessToken);
}
}
return authentications;
}
private ApiClientConnector buildHttpConnector(Builder builder) {
return ApiClientConnectorLoader.load(properties);
}
public boolean getShouldThrowErrors() {
return shouldThrowErrors;
}
public String getBasePath() {
return basePath;
}
public ObjectMapper getObjectMapper() {
return this.objectMapper;
}
/**
* Helper method to set access token for the first OAuth2 authentication.
*/
public void setAccessToken(String accessToken) {
for (Authentication auth : authentications.values()) {
if (auth instanceof OAuth) {
((OAuth) auth).setAccessToken(accessToken);
return;
}
}
throw new RuntimeException("No OAuth2 authentication configured!");
}
/**
* Connect timeout (in milliseconds).
*/
public int getConnectTimeout() {
return properties.getProperty(ApiClientConnectorProperty.CONNECTION_TIMEOUT, Integer.class, 0);
}
/**
* Parse the given string into Date object.
*/
public Date parseDate(String str) {
try {
synchronized (dateFormat) {
return dateFormat.parse(str);
}
} catch (java.text.ParseException e) {
throw new RuntimeException(e);
}
}
/**
* Format the given Date object into string.
*/
public String formatDate(Date date) {
synchronized (dateFormat) {
return dateFormat.format(date);
}
}
/**
* Format the given parameter object into string.
*/
public String parameterToString(Object param) {
if (param == null) {
return "";
} else if (param instanceof Date) {
return formatDate((Date) param);
} else if (param instanceof Collection) {
StringBuilder b = new StringBuilder();
for(Object o : (Collection)param) {
if(b.length() > 0) {
b.append(",");
}
b.append(String.valueOf(o));
}
return b.toString();
} else {
return String.valueOf(param);
}
}
/*
Format to {@code Pair} objects.
*/
public List parameterToPairs(String collectionFormat, String name, Object value){
List params = new ArrayList();
// preconditions
if (name == null || name.isEmpty() || value == null) return params;
Collection valueCollection = null;
if (value instanceof Collection) {
valueCollection = (Collection) value;
} else {
params.add(new Pair(name, parameterToString(value)));
return params;
}
if (valueCollection.isEmpty()){
return params;
}
// get the collection format
collectionFormat = (collectionFormat == null || collectionFormat.isEmpty() ? "csv" : collectionFormat); // default: csv
// create the params based on the collection format
if (collectionFormat.equals("multi")) {
for (Object item : valueCollection) {
params.add(new Pair(name, parameterToString(item)));
}
return params;
}
String delimiter = ",";
if (collectionFormat.equals("csv")) {
delimiter = ",";
} else if (collectionFormat.equals("ssv")) {
delimiter = " ";
} else if (collectionFormat.equals("tsv")) {
delimiter = "\t";
} else if (collectionFormat.equals("pipes")) {
delimiter = "|";
}
StringBuilder sb = new StringBuilder() ;
for (Object item : valueCollection) {
sb.append(delimiter);
sb.append(parameterToString(item));
}
params.add(new Pair(name, sb.substring(1)));
return params;
}
/**
* Check if the given MIME is a JSON MIME.
* JSON MIME examples:
* application/json
* application/json; charset=UTF8
* APPLICATION/JSON
*/
public boolean isJsonMime(String mime) {
return mime != null && mime.matches("(?i)application\\/json(;.*)?");
}
/**
* Select the Accept header's value from the given accepts array:
* if JSON exists in the given array, use it;
* otherwise use all of them (joining into a string)
*
* @param accepts The accepts array to select from
* @return The Accept header to use. If the given array is empty,
* null will be returned (not to set the Accept header explicitly).
*/
public String selectHeaderAccept(String[] accepts) {
if (accepts.length == 0) {
return null;
}
for (String accept : accepts) {
if (isJsonMime(accept)) {
return accept;
}
}
return StringUtil.join(accepts, ",");
}
/**
* Select the Content-Type header's value from the given array:
* if JSON exists in the given array, use it;
* otherwise use the first one of the array.
*
* @param contentTypes The Content-Type array to select from
* @return The Content-Type header to use. If the given array is empty,
* JSON will be used.
*/
public String selectHeaderContentType(String[] contentTypes) {
if (contentTypes.length == 0) {
return "application/json";
}
for (String contentType : contentTypes) {
if (isJsonMime(contentType)) {
return contentType;
}
}
return contentTypes[0];
}
/**
* Escape the given string to be used as URL query value.
*/
public String escapeString(String str) {
try {
return URLEncoder.encode(str, "utf8").replaceAll("\\+", "%20");
} catch (UnsupportedEncodingException e) {
return str;
}
}
/**
* Serialize the given Java object into string according the given
* Content-Type (only JSON is supported for now).
*/
public String serialize(Object obj) throws IOException {
return objectMapper.writeValueAsString(obj);
}
/**
* Deserialize the string into the provided type
*
* @param obj the string to deserialize
* @param type the target type for deserialization
*/
public T deserialize(String obj, Class type) throws IOException {
return objectMapper.readValue(obj, type);
}
/**
* Build full URL by concatenating base path, the given sub path and query parameters.
*
* @param path The sub path
* @param queryParams The query parameters
* @return The full URL
*/
private String buildUrl(String path, Map pathParams, List queryParams, boolean isAuthRequest) {
path = path.replaceAll("\\{format\\}", "json");
if (pathParams != null && !pathParams.isEmpty()) {
for (Map.Entry entry : pathParams.entrySet()) {
path = path.replaceAll("\\{" + entry.getKey() + "\\}", entry.getValue());
}
}
final StringBuilder url = new StringBuilder();
if (isAuthRequest) {
String[] parts = basePath.split("\\.", 2);
url.append("https://login.").append(parts[1]).append(path);
} else {
url.append(basePath).append(path);
}
if (queryParams != null && !queryParams.isEmpty()) {
// support (constant) query string in `path`, e.g. "/posts?draft=1"
String prefix = path.contains("?") ? "&" : "?";
for (Pair param : queryParams) {
if (param.getValue() != null) {
if (prefix != null) {
url.append(prefix);
prefix = null;
} else {
url.append("&");
}
String value = parameterToString(param.getValue());
url.append(escapeString(param.getName())).append("=").append(escapeString(value));
}
}
}
return url.toString();
}
private ApiClientConnectorRequest prepareConnectorRequest(final ApiRequest request, boolean isAuthRequest) throws IOException {
final String path = request.getPath();
final List queryParams = new ArrayList<>(request.getQueryParams());
// Add headers
final Map headers = new HashMap<>();
String accept = request.getAccepts();
if (accept != null && !accept.isEmpty()) {
headers.put("Accept", accept);
}
String contentType = request.getContentType();
if (contentType != null && !contentType.isEmpty()) {
headers.put("Content-Type", contentType);
}
Map headerParams = request.getHeaderParams();
if (headerParams != null && !headerParams.isEmpty()) {
for (Map.Entry headerParam : headerParams.entrySet()) {
headers.put(headerParam.getKey(), headerParam.getValue());
}
}
Map customHeaders = request.getCustomHeaders();
if (customHeaders != null && !customHeaders.isEmpty()) {
for (Map.Entry customHeader : customHeaders.entrySet()) {
headers.put(customHeader.getKey(), customHeader.getValue());
}
}
for (Map.Entry defaultHeader : defaultHeaderMap.entrySet()) {
if (!headers.containsKey(defaultHeader.getKey()))
headers.put(defaultHeader.getKey(), defaultHeader.getValue());
}
updateParamsForAuth(request.getAuthNames(), queryParams, headers);
final String url = buildUrl(path, request.getPathParams(), queryParams, isAuthRequest);
final Object body = request.getBody();
final Map formParams = request.getFormParams();
final String serializedBody;
if (body != null && !formParams.isEmpty()) {
throw new IllegalStateException("Request cannot have both form and body parameters.");
}
else if (body != null) {
serializedBody = serialize(body);
}
else if (formParams != null) {
serializedBody = getXWWWFormUrlencodedParams(formParams);
}
else {
serializedBody = null;
}
return new ApiClientConnectorRequest() {
@Override
public String getMethod() {
return request.getMethod();
}
@Override
public String getUrl() {
return url;
}
@Override
public Map getHeaders() {
return headers;
}
@Override
public boolean hasBody() {
return (serializedBody != null);
}
@Override
public String readBody() throws IOException {
return serializedBody;
}
@Override
public InputStream getBody() throws IOException {
return (serializedBody != null) ? new ByteArrayInputStream(serializedBody.getBytes("UTF8")) : null;
}
};
}
private ApiResponse interpretConnectorResponse(ApiClientConnectorResponse response, TypeReference returnType) throws WebMessagingException, IOException {
int statusCode = response.getStatusCode();
String reasonPhrase = response.getStatusReasonPhrase();
Map headers = response.getHeaders();
if (statusCode >= 200 && statusCode < 300) {
String body = null;
T entity = null;
if (statusCode != 204 && returnType != null && returnType.getType() != Void.class && response.hasBody()) {
body = response.readBody();
if (body != null && body.length() > 0 && returnType.getType() == String.class) {
entity = (T)body;
} else if (body != null && body.length() > 0) {
entity = objectMapper.readValue(body, returnType);
}
}
return new ApiResponseWrapper<>(statusCode, reasonPhrase, headers, body, entity);
}
else {
String message = "error";
String body = response.readBody();
throw new WebMessagingException(statusCode, message, headers, body);
}
}
private ApiResponse getAPIResponse(ApiRequest request, TypeReference returnType, boolean isAuthRequest) throws IOException, WebMessagingException {
ApiClientConnectorRequest connectorRequest = prepareConnectorRequest(request, isAuthRequest);
ApiClientConnectorResponse connectorResponse = null;
try {
Retry retry = new Retry(retryConfiguration);
do {
connectorResponse = connector.invoke(connectorRequest);
} while (retry.shouldRetry(connectorResponse));
return interpretConnectorResponse(connectorResponse, returnType);
} finally {
if (connectorResponse != null) {
try {
connectorResponse.close();
} catch (Throwable exception) {
throw new RuntimeException(exception);
}
}
}
}
public ApiResponse invoke(ApiRequest request, TypeReference returnType) throws WebMessagingException, IOException {
return getAPIResponse(request, returnType, false);
}
/**
* Update query and header parameters based on authentication settings.
*
* @param authNames The authentications to apply
*/
private void updateParamsForAuth(String[] authNames, List queryParams, Map headerParams) {
for (String authName : authNames) {
Authentication auth = authentications.get(authName);
if (auth == null) throw new RuntimeException("Authentication undefined: " + authName);
auth.applyToParams(queryParams, headerParams);
}
}
/**
* Encode the given form parameters as request body.
*/
private String getXWWWFormUrlencodedParams(Map formParams) {
StringBuilder formParamBuilder = new StringBuilder();
for (Entry param : formParams.entrySet()) {
String valueStr = parameterToString(param.getValue());
try {
formParamBuilder.append(URLEncoder.encode(param.getKey(), "utf8"))
.append("=")
.append(URLEncoder.encode(valueStr, "utf8"));
formParamBuilder.append("&");
} catch (UnsupportedEncodingException e) {
// move on to next
}
}
String encodedFormParams = formParamBuilder.toString();
if (encodedFormParams.endsWith("&")) {
encodedFormParams = encodedFormParams.substring(0, encodedFormParams.length() - 1);
}
return encodedFormParams;
}
public static class Builder {
public static Builder standard() {
return new Builder(new ConnectorProperties());
}
public static Builder from(ApiClient client) {
if (client == null) {
throw new NullPointerException();
}
Builder builder = new Builder(client.properties);
builder.defaultHeaderMap.putAll(client.defaultHeaderMap);
for (Authentication authentication : client.authentications.values()) {
if (authentication instanceof OAuth) {
builder.accessToken = ((OAuth)authentication).getAccessToken();
}
}
builder.dateFormat = client.dateFormat;
builder.objectMapper = client.objectMapper;
builder.basePath = client.basePath;
builder.retryConfiguration = client.retryConfiguration;
builder.shouldThrowErrors = client.shouldThrowErrors;
return builder;
}
public static ApiClient defaultClient() {
return standard().build();
}
private final Map defaultHeaderMap = new HashMap<>();
private final ConnectorProperties properties;
private String accessToken;
private ObjectMapper objectMapper;
private DateFormat dateFormat;
private String basePath;
private RetryConfiguration retryConfiguration;
private Boolean shouldThrowErrors = true;
private Builder(ConnectorProperties properties) {
this.properties = (properties != null) ? properties.copy() : new ConnectorProperties();
withUserAgent(DEFAULT_USER_AGENT);
withDefaultHeader("purecloud-sdk", "10.3.0");
}
public Builder withDefaultHeader(String header, String value) {
defaultHeaderMap.put(header, value);
return this;
}
public Builder withAccessToken(String accessToken) {
this.accessToken = accessToken;
return this;
}
public Builder withUserAgent(String userAgent) {
return withDefaultHeader(USER_AGENT_HEADER, userAgent);
}
public Builder withObjectMapper(ObjectMapper objectMapper) {
this.objectMapper = objectMapper;
return this;
}
public Builder withDateFormat(DateFormat dateFormat) {
this.dateFormat = dateFormat;
return this;
}
public Builder withBasePath(String basePath) {
this.basePath = basePath;
return this;
}
public Builder withBasePath(GenesysCloudRegionWebSocketHosts region){
this.basePath = region.asApiHost();
return this;
}
public Builder withRetryConfiguration(RetryConfiguration retryConfiguration) {
this.retryConfiguration = retryConfiguration;
return this;
}
public Builder withConnectionTimeout(int connectionTimeout) {
properties.setProperty(ApiClientConnectorProperty.CONNECTION_TIMEOUT, connectionTimeout);
return this;
}
public Builder withShouldThrowErrors(boolean shouldThrowErrors) {
this.shouldThrowErrors = shouldThrowErrors;
return this;
}
public Builder withDetailLevel(DetailLevel detailLevel) {
properties.setProperty(ApiClientConnectorProperty.DETAIL_LEVEL, detailLevel);
return this;
}
public Builder withProxy(Proxy proxy) {
properties.setProperty(ApiClientConnectorProperty.PROXY, proxy);
return this;
}
public Builder withAuthenticatedProxy(Proxy proxy, String user, String pass) {
withProxy(proxy);
properties.setProperty(ApiClientConnectorProperty.PROXY_USER, user);
properties.setProperty(ApiClientConnectorProperty.PROXY_PASS, pass);
return this;
}
public Builder withProperty(String name, Object value) {
properties.setProperty(name, value);
return this;
}
public ApiClient build() {
return new ApiClient(this);
}
}
private static class ConnectorProperties implements ApiClientConnectorProperties {
private final Map properties;
public ConnectorProperties() {
this.properties = new HashMap<>();
}
public ConnectorProperties(Map properties) {
this.properties = new HashMap<>();
if (properties != null) {
this.properties.putAll(properties);
}
}
@Override
public T getProperty(String key, Class propertyClass, T defaultValue) {
Object value = properties.get(key);
if (propertyClass.isInstance(value)) {
return propertyClass.cast(value);
}
return defaultValue;
}
public void setProperty(String key, Object value) {
if (key != null) {
if (value != null) {
properties.put(key, value);
}
else {
properties.remove(key);
}
}
}
public ConnectorProperties copy() {
return new ConnectorProperties(properties);
}
}
private static class ApiRequestWrapper implements ApiRequest {
private final String path;
private final String method;
private final List queryParams;
private final T body;
private final Map headerParams;
private final Map formParams;
private final String accept;
private final String contentType;
private final String[] authNames;
public ApiRequestWrapper(String path, String method, List queryParams, T body, Map headerParams, Map formParams, String accept, String contentType, String[] authNames) {
this.path = path;
this.method = method;
this.queryParams = queryParams;
this.body = body;
this.headerParams = headerParams;
this.formParams = formParams;
this.accept = accept;
this.contentType = contentType;
this.authNames = authNames;
}
@Override
public String getPath() {
return path;
}
@Override
public String getMethod() {
return method;
}
@Override
public Map getPathParams() {
return Collections.emptyMap();
}
@Override
public List getQueryParams() {
return queryParams;
}
@Override
public Map getFormParams() {
return formParams;
}
@Override
public Map getHeaderParams() {
return headerParams;
}
@Override
public Map getCustomHeaders() {
return Collections.emptyMap();
}
@Override
public String getContentType() {
return contentType;
}
@Override
public String getAccepts() {
return accept;
}
@Override
public T getBody() {
return body;
}
@Override
public String[] getAuthNames() {
return authNames;
}
}
private static class ApiResponseWrapper implements ApiResponse {
private final int statusCode;
private final String reasonPhrase;
private final Map headers;
private final String body;
private final T entity;
public ApiResponseWrapper(int statusCode, String reasonPhrase, Map headers, String body, T entity) {
this.statusCode = statusCode;
this.reasonPhrase = reasonPhrase;
Map caseInsensitiveMap = new TreeMap(String.CASE_INSENSITIVE_ORDER);
caseInsensitiveMap.putAll(headers);
this.headers = Collections.unmodifiableMap(caseInsensitiveMap);
this.body = body;
this.entity = entity;
}
@Override
public Exception getException() {
return null;
}
@Override
public int getStatusCode() {
return statusCode;
}
@Override
public String getStatusReasonPhrase() {
return reasonPhrase;
}
@Override
public boolean hasRawBody() {
return (body != null && !body.isEmpty());
}
@Override
public String getRawBody() {
return body;
}
@Override
public T getBody() {
return entity;
}
@Override
public Map getHeaders() {
return headers;
}
@Override
public String getHeader(String key) {
return headers.get(key);
}
@Override
public String getCorrelationId() {
return headers.get("ININ-Correlation-ID");
}
@Override
public void close() throws Exception { }
}
public static class RetryConfiguration {
private long backoffIntervalMs = 300000L;
private long retryAfterDefaultMs = 3000L;
private int maxRetryTimeSec = 0;
private int maxRetriesBeforeBackoff = 5;
public void setBackoffIntervalMs(long backoffIntervalMs) {
if (backoffIntervalMs < 0) {
throw new IllegalArgumentException("backoffIntervalMs should be a positive integer");
}
this.backoffIntervalMs = backoffIntervalMs;
}
public void setRetryAfterDefaultMs(long retryAfterDefaultMs) {
if (retryAfterDefaultMs < 0) {
throw new IllegalArgumentException("retryAfterDefaultMs should be a positive integer");
}
this.retryAfterDefaultMs = retryAfterDefaultMs;
}
public void setMaxRetryTimeSec(int maxRetryTimeSec) {
if (maxRetryTimeSec < 0) {
throw new IllegalArgumentException("maxRetryTimeSec should be a positive integer");
}
this.maxRetryTimeSec = maxRetryTimeSec;
}
public void setMaxRetriesBeforeBackoff(int maxRetriesBeforeBackoff) {
if (maxRetriesBeforeBackoff < 0) {
throw new IllegalArgumentException("maxRetriesBeforeBackoff can not be a negative integer");
}
this.maxRetriesBeforeBackoff = maxRetriesBeforeBackoff;
}
}
public static class Retry {
private long backoffIntervalMs;
private long retryAfterDefaultMs;
private int maxRetryTimeSec;
private int maxRetriesBeforeBackoff;
private int retryCountBeforeBackOff = 0;
private long retryAfterMs;
private Stopwatch stopwatch = null;
private final List statusCodes = Arrays.asList(429, 502, 503, 504);
private static Logger LOGGER = LoggerFactory.getLogger(Retry.class);
public Retry(RetryConfiguration retryConfiguration) {
this.backoffIntervalMs = retryConfiguration.backoffIntervalMs;
this.retryAfterDefaultMs = retryConfiguration.retryAfterDefaultMs;
this.maxRetryTimeSec = retryConfiguration.maxRetryTimeSec;
this.maxRetriesBeforeBackoff = retryConfiguration.maxRetriesBeforeBackoff;
stopwatch = Stopwatch.createStarted();
}
public boolean shouldRetry(ApiClientConnectorResponse connectorResponse) {
if (stopwatch.elapsed(TimeUnit.MILLISECONDS) < maxRetryTimeSec * 1000L && statusCodes.contains(connectorResponse.getStatusCode())) {
if (connectorResponse.getHeaders().containsKey("Retry-After")) {
retryAfterMs = Integer.parseInt(connectorResponse.getHeaders().getOrDefault("Retry-After", "3")) * 1000L;
} else {
retryAfterMs = retryAfterDefaultMs;
}
//If status code is 429 then wait until retry-after time and retry. OR If status code is retryable then for the first 5 times: wait until retry-after time and retry.
if (connectorResponse.getStatusCode() == 429 || retryCountBeforeBackOff++ < maxRetriesBeforeBackoff) {
return waitBeforeRetry(retryAfterMs);
}
//If status code is 50x then wait for every 3 Sec and retry until 5 minutes then after wait for every 9 Sec and retry until next 5 minutes afterwards wait for every 27 Sec and retry.
return waitBeforeRetry(getWaitTimeExp(Math.min(3, Math.floor(stopwatch.elapsed(TimeUnit.MILLISECONDS) / backoffIntervalMs) + 1)));
}
stopwatch.stop();
return false;
}
private boolean waitBeforeRetry(long retryAfterMs){
try {
LOGGER.info("SDK will be sleeping for: " + retryAfterMs + " milliseconds before retrying.");
Thread.sleep(retryAfterMs);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
return true;
}
private long getWaitTimeExp(double bucketCount) {
return (long) Math.pow(3, bucketCount) * 1000L;
}
}
}
