mynameborat commented on a change in pull request #1337: SAMZA-2498: [Job
coordinator isolation] Classloader isolation for SamzaApplication.describe
execution in job coordinator
URL: https://github.com/apache/samza/pull/1337#discussion_r401398714
##########
File path:
samza-core/src/main/java/org/apache/samza/application/ApplicationUtil.java
##########
@@ -32,17 +34,37 @@
public class ApplicationUtil {
/**
- * Creates the {@link SamzaApplication} object from the task or application
class name specified in {@code config}
+ * Creates the {@link SamzaApplication} object from the task or application
class name specified in {@code config}.
+ *
+ * This will use the current classloader to load the {@link
SamzaApplication}.
*
* @param config the configuration of the application
* @return the {@link SamzaApplication} object
*/
public static SamzaApplication fromConfig(Config config) {
+ return fromConfig(config, false);
+ }
+
+ /**
+ * Creates the {@link SamzaApplication} object from the task or application
class name specified in {@code config}.
+ * If {@code canApplyFrameworkIsolationIfEnabled} is true and isolation is
enabled (in the config), then this will
+ * build the {@link SamzaApplication} using a special isolating classloader.
Otherwise, this will use the current
Review comment:
why do we need two levels (this boolean & the config) to determine the
behavior? Can we not infer from the config and then use the appropriate loader?
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