risdenk commented on a change in pull request #282: KNOX-2259 KNOX-2260
KNOX-2261 - Fixed Impala/Kudu/HBase UI context path in service metadata
URL: https://github.com/apache/knox/pull/282#discussion_r389693686
##########
File path:
gateway-service-metadata/src/main/java/org/apache/knox/gateway/service/metadata/ServiceModel.java
##########
@@ -101,14 +103,27 @@ public String getContext() {
}
@XmlElement
- public String getServiceUrl() {
+ public String getServiceUrl() throws MalformedURLException {
String context = getContext();
if ("HIVE".equals(getServiceName())) {
return String.format(Locale.ROOT,
"jdbc:hive2://%s:%d/;?hive.server2.transport.mode=http;hive.server2.thrift.http.path=/%s/%s%s",
request.getServerName(),
request.getServerPort(), gatewayPath, topologyName, context);
} else {
+ final String backendUrlString = getBackendServiceUrl();
if (context.indexOf("{{BACKEND_HOST}}") > -1) {
- context = context.replace("{{BACKEND_HOST}}", getBackendServiceUrl());
+ context = context.replace("{{BACKEND_HOST}}", backendUrlString);
+ }
+ if (context.indexOf("{{SCHEME}}") > -1 || context.indexOf("{{HOST}}") >
-1 || context.indexOf("{{PORT}}") > -1) {
+ final URL backendUrl = new URL(backendUrlString);
+ if (context.indexOf("{{SCHEME}}") > -1) {
+ context = context.replace("{{SCHEME}}", backendUrl.getProtocol());
+ }
+ if (context.indexOf("{{HOST}}") > -1) {
+ context = context.replace("{{HOST}}", backendUrl.getHost());
+ }
+ if (context.indexOf("{{PORT}}") > -1) {
+ context = context.replace("{{PORT}}",
String.valueOf(backendUrl.getPort()));
+ }
Review comment:
Not sure we need all the double checks? Can't we just do
`context.replace(...)` and if it doesn't match it won't replace? The strings
here are super short. It might even be slower to do a check and then replace
anyway.
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