danny0405 commented on code in PR #13616:
URL: https://github.com/apache/hudi/pull/13616#discussion_r2229847071
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hudi-common/src/main/java/org/apache/hudi/common/util/ConfigUtils.java:
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@@ -642,4 +642,42 @@ public static HoodieConfig
getReaderConfigs(StorageConfiguration<?> storageConf)
public static TypedProperties loadGlobalProperties() {
return ((PropertiesConfig)
ReflectionUtils.loadClass("org.apache.hudi.common.config.DFSPropertiesConfiguration")).getGlobalProperties();
}
+
+ /**
+ * Extract all properties whose keys start with a given prefix.
+ * E.g., if the prefix is "a.b.c", and the props contain:
+ * "a.b.c.K1=V1", "a.b.c.K2=V2", "a.b.c.K3=V3".
+ * Then the output is:
+ * Map(K1->V1, K2->V2, K3->V3).
+ */
+ public static Map<String, String> extractWithPrefix(TypedProperties props,
String prefix) {
+ if (props == null || props.isEmpty()) {
+ return new HashMap<>();
+ }
+ int prefixLength = prefix.length();
+ int dotOffset = prefixLength + 1; // +1 for the dot after prefix
+
+ Map<String, String> mergeProperties = new HashMap<>();
+ for (Map.Entry<Object, Object> entry : props.entrySet()) {
+ String key = entry.getKey().toString();
+ // Early exit if key is shorter than prefix or doesn't start with prefix
+ if (key.length() <= prefixLength || !key.startsWith(prefix)) {
+ continue;
+ }
+ // Check if the character after prefix is a dot
+ if (key.charAt(prefixLength) != '.') {
Review Comment:
+1
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