/**
* Obtains a parameter with specified name from from query string. The query should be in format
* param=value¶m=value ...
*
* @param query Queery in "url" format.
* @param paramName Parameter name.
* @return Parameter value, or null.
*/
public static String getParameterValueFromQuery(String query, String paramName) {
String[] components = query.split("&");
for (String keyValuePair : components) {
String[] pairComponents = keyValuePair.split("=");
if (pairComponents.length == 2) {
try {
String key = URLDecoder.decode(pairComponents[0], "utf-8");
if (key.compareTo(paramName) == 0) {
return URLDecoder.decode(pairComponents[1], "utf-8");
}
} catch (UnsupportedEncodingException e) {
logger.error(
"getParameterValueFromQuery failed with exception: " + e.getLocalizedMessage(), e);
}
}
}
return null;
}
/**
* Extracts a JSON object from server response with secured string.
*
* @param response Server response
* @return Extracted secured JSON or null.
*/
public static JSONObject extractSecureJson(Response response) {
try {
String responseText = response.getResponseText();
if (!responseText.startsWith(SECURE_PATTERN_START)
|| !responseText.endsWith(SECURE_PATTERN_END)) {
return null;
}
int startIndex = responseText.indexOf(SECURE_PATTERN_START);
int endIndex =
responseText.indexOf(
SECURE_PATTERN_END, responseText.length() - SECURE_PATTERN_END.length() - 1);
String jsonString =
responseText.substring(startIndex + SECURE_PATTERN_START.length(), endIndex);
return new JSONObject(jsonString);
} catch (Throwable t) {
logger.error("extractSecureJson failed with exception: " + t.getLocalizedMessage(), t);
return null;
}
}
/** Internal helper class with various utilities. */
public class Utils {
private static Logger logger = Logger.getInstance("Utils");
private static final String SECURE_PATTERN_START = "/*-secure-\n";
private static final String SECURE_PATTERN_END = "*/";
private static final String BLUEMIX_NAME = "bluemix";
private static final String BLUEMIX_DOMAIN = "bluemix.net";
private static final String STAGE1_NAME = "stage1";
/**
* Obtains a parameter with specified name from from query string. The query should be in format
* param=value¶m=value ...
*
* @param query Queery in "url" format.
* @param paramName Parameter name.
* @return Parameter value, or null.
*/
public static String getParameterValueFromQuery(String query, String paramName) {
String[] components = query.split("&");
for (String keyValuePair : components) {
String[] pairComponents = keyValuePair.split("=");
if (pairComponents.length == 2) {
try {
String key = URLDecoder.decode(pairComponents[0], "utf-8");
if (key.compareTo(paramName) == 0) {
return URLDecoder.decode(pairComponents[1], "utf-8");
}
} catch (UnsupportedEncodingException e) {
logger.error(
"getParameterValueFromQuery failed with exception: " + e.getLocalizedMessage(), e);
}
}
}
return null;
}
/**
* Extracts a JSON object from server response with secured string.
*
* @param response Server response
* @return Extracted secured JSON or null.
*/
public static JSONObject extractSecureJson(Response response) {
try {
String responseText = response.getResponseText();
if (!responseText.startsWith(SECURE_PATTERN_START)
|| !responseText.endsWith(SECURE_PATTERN_END)) {
return null;
}
int startIndex = responseText.indexOf(SECURE_PATTERN_START);
int endIndex =
responseText.indexOf(
SECURE_PATTERN_END, responseText.length() - SECURE_PATTERN_END.length() - 1);
String jsonString =
responseText.substring(startIndex + SECURE_PATTERN_START.length(), endIndex);
return new JSONObject(jsonString);
} catch (Throwable t) {
logger.error("extractSecureJson failed with exception: " + t.getLocalizedMessage(), t);
return null;
}
}
/**
* Builds rewrite domain from backend route url.
*
* @param backendRoute Backend route.
* @param subzone Subzone
* @return Rewrite domain.
* @throws MalformedURLException if backendRoute parameter has invalid format.
*/
public static String buildRewriteDomain(String backendRoute, String subzone)
throws MalformedURLException {
if (backendRoute == null || backendRoute.isEmpty()) {
logger.error("Backend route can't be null.");
return null;
}
String applicationRoute = backendRoute;
if (!applicationRoute.startsWith(BMSClient.HTTP_SCHEME)) {
applicationRoute = String.format("%s://%s", BMSClient.HTTPS_SCHEME, applicationRoute);
} else if (!applicationRoute.startsWith(BMSClient.HTTPS_SCHEME)
&& applicationRoute.contains(BLUEMIX_NAME)) {
applicationRoute = applicationRoute.replace(BMSClient.HTTP_SCHEME, BMSClient.HTTPS_SCHEME);
}
URL url = new URL(applicationRoute);
String host = url.getHost();
String rewriteDomain;
String regionInDomain = "ng";
int port = url.getPort();
String serviceUrl = String.format("%s://%s", url.getProtocol(), host);
if (port != 0) {
serviceUrl += ":" + String.valueOf(port);
}
String[] hostElements = host.split("\\.");
if (!serviceUrl.contains(STAGE1_NAME)) {
// Multi-region: myApp.eu-gb.mybluemix.net
// US: myApp.mybluemix.net
if (hostElements.length == 4) {
regionInDomain = hostElements[hostElements.length - 3];
}
// this is production, because STAGE1 is not found
// Multi-Region Eg: eu-gb.bluemix.net
// US Eg: ng.bluemix.net
rewriteDomain = String.format("%s.%s", regionInDomain, BLUEMIX_DOMAIN);
} else {
// Multi-region: myApp.stage1.eu-gb.mybluemix.net
// US: myApp.stage1.mybluemix.net
if (hostElements.length == 5) {
regionInDomain = hostElements[hostElements.length - 3];
}
if (subzone != null && !subzone.isEmpty()) {
// Multi-region Dev subzone Eg: stage1-Dev.eu-gb.bluemix.net
// US Dev subzone Eg: stage1-Dev.ng.bluemix.net
rewriteDomain =
String.format("%s-%s.%s.%s", STAGE1_NAME, subzone, regionInDomain, BLUEMIX_DOMAIN);
} else {
// Multi-region Eg: stage1.eu-gb.bluemix.net
// US Eg: stage1.ng.bluemix.net
rewriteDomain = String.format("%s.%s.%s", STAGE1_NAME, regionInDomain, BLUEMIX_DOMAIN);
}
}
return rewriteDomain;
}
/**
* Concatenates two URLs. The function checks for trailing and preceding slashes in rootUrl and
* path.
*
* @param rootUrl first part of the url
* @param path second part of the url
* @return Concatenated string containing rootUrl and path.
*/
public static String concatenateUrls(String rootUrl, String path) {
if (rootUrl == null || rootUrl.isEmpty()) {
return path;
}
if (path == null || path.isEmpty()) {
return rootUrl;
}
String finalUrl;
if (rootUrl.charAt(rootUrl.length() - 1) == '/' && path.charAt(0) == '/') {
finalUrl = rootUrl.substring(0, rootUrl.length() - 2) + path;
} else if (rootUrl.charAt(rootUrl.length() - 1) != '/' && path.charAt(0) != '/') {
finalUrl = rootUrl + "/" + path;
} else {
finalUrl = rootUrl + path;
}
return finalUrl;
}
}
/**
* Builds rewrite domain from backend route url.
*
* @param backendRoute Backend route.
* @param subzone Subzone
* @return Rewrite domain.
* @throws MalformedURLException if backendRoute parameter has invalid format.
*/
public static String buildRewriteDomain(String backendRoute, String subzone)
throws MalformedURLException {
if (backendRoute == null || backendRoute.isEmpty()) {
logger.error("Backend route can't be null.");
return null;
}
String applicationRoute = backendRoute;
if (!applicationRoute.startsWith(BMSClient.HTTP_SCHEME)) {
applicationRoute = String.format("%s://%s", BMSClient.HTTPS_SCHEME, applicationRoute);
} else if (!applicationRoute.startsWith(BMSClient.HTTPS_SCHEME)
&& applicationRoute.contains(BLUEMIX_NAME)) {
applicationRoute = applicationRoute.replace(BMSClient.HTTP_SCHEME, BMSClient.HTTPS_SCHEME);
}
URL url = new URL(applicationRoute);
String host = url.getHost();
String rewriteDomain;
String regionInDomain = "ng";
int port = url.getPort();
String serviceUrl = String.format("%s://%s", url.getProtocol(), host);
if (port != 0) {
serviceUrl += ":" + String.valueOf(port);
}
String[] hostElements = host.split("\\.");
if (!serviceUrl.contains(STAGE1_NAME)) {
// Multi-region: myApp.eu-gb.mybluemix.net
// US: myApp.mybluemix.net
if (hostElements.length == 4) {
regionInDomain = hostElements[hostElements.length - 3];
}
// this is production, because STAGE1 is not found
// Multi-Region Eg: eu-gb.bluemix.net
// US Eg: ng.bluemix.net
rewriteDomain = String.format("%s.%s", regionInDomain, BLUEMIX_DOMAIN);
} else {
// Multi-region: myApp.stage1.eu-gb.mybluemix.net
// US: myApp.stage1.mybluemix.net
if (hostElements.length == 5) {
regionInDomain = hostElements[hostElements.length - 3];
}
if (subzone != null && !subzone.isEmpty()) {
// Multi-region Dev subzone Eg: stage1-Dev.eu-gb.bluemix.net
// US Dev subzone Eg: stage1-Dev.ng.bluemix.net
rewriteDomain =
String.format("%s-%s.%s.%s", STAGE1_NAME, subzone, regionInDomain, BLUEMIX_DOMAIN);
} else {
// Multi-region Eg: stage1.eu-gb.bluemix.net
// US Eg: stage1.ng.bluemix.net
rewriteDomain = String.format("%s.%s.%s", STAGE1_NAME, regionInDomain, BLUEMIX_DOMAIN);
}
}
return rewriteDomain;
}