chesnokoff commented on code in PR #355:
URL: https://github.com/apache/ignite-extensions/pull/355#discussion_r3466788461
##########
modules/auto-activation-ext/src/main/java/opt/apache/ignite/activation/ActivateByNodeAttribute.java:
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@@ -0,0 +1,48 @@
+package opt.apache.ignite.activation;
+
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.Set;
+import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.lang.IgnitePredicate;
+
+/**
+ * Activate cluster when nodes with all specified attributes values join
topology.
+ */
+public class ActivateByNodeAttribute implements
IgnitePredicate<Collection<ClusterNode>> {
+ /** Node's attribute name. */
+ private final String attrName;
+
+ /** Collection of values for node's attribute. */
+ private final Set<String> requiredValues;
+
+ /**
+ * @param attributeName Node's attribute name.
+ * @param requiredValues List of values for node's attribute.
+ */
+ public ActivateByNodeAttribute(String attributeName, Set<String>
requiredValues) {
+ if (attributeName == null || attributeName.isBlank())
+ throw new IllegalArgumentException("attributeName must be set");
+
+ if (requiredValues == null || requiredValues.isEmpty())
+ throw new IllegalArgumentException("requiredValues must be set");
+
+ this.attrName = attributeName;
+ this.requiredValues = requiredValues;
+ }
+
+ /** */
Review Comment:
```suggestion
/** {@inheritDoc} */
```
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