Github user bbende commented on a diff in the pull request:
https://github.com/apache/nifi/pull/452#discussion_r63760082
--- Diff:
nifi-api/src/main/java/org/apache/nifi/authorization/AccessPolicy.java ---
@@ -0,0 +1,125 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.authorization;
+
+import java.util.Collections;
+import java.util.Objects;
+import java.util.Set;
+
+/**
+ * Defines a policy for a set of entities to perform a set of actions on a
given resource.
+ */
+public class AccessPolicy {
+
+ private final String identifier;
+
+ private final Resource resource;
+
+ private final Set<String> entities;
+
+ private final Set<RequestAction> actions;
+
+ /**
+ * Constructs a new policy with the given resource, entities, and
actions.
+ *
+ * @param identifier the identifier of the policy
+ * @param resource the resource for the policy
+ * @param entities the entity ids for the policy (i.e. user or group
ids)
+ * @param actions the actions for the policy
+ */
+ public AccessPolicy(final String identifier, final Resource resource,
final Set<String> entities, final Set<RequestAction> actions) {
+ if (identifier == null || identifier.trim().isEmpty()) {
+ throw new IllegalArgumentException("Identifier can not be null
or empty");
+ }
+
+ if (resource == null) {
+ throw new IllegalArgumentException("Resource can not be null");
+ }
+
+ if (entities == null || entities.isEmpty()) {
+ throw new IllegalArgumentException("Entities can not be null
or empty");
+ }
+
+ if (actions == null || actions.isEmpty()) {
+ throw new IllegalArgumentException("Actions can not be null or
empty");
+ }
+
+ this.identifier = identifier;
+ this.resource = resource;
+ this.entities = Collections.unmodifiableSet(entities);
+ this.actions = Collections.unmodifiableSet(actions);
+ }
+
+ /**
+ * @return the identifier for this policy
+ */
+ public String getIdentifier() {
+ return identifier;
+ }
+
+ /**
+ * @return the resource for this policy
+ */
+ public Resource getResource() {
+ return resource;
+ }
+
+ /**
+ * @return the set of entity ids for this policy
+ */
+ public Set<String> getEntities() {
+ return entities;
+ }
+
+ /**
+ * @return the set of actions for this policy
+ */
+ public Set<RequestAction> getActions() {
+ return actions;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (obj == null) {
+ return false;
+ }
+ if (getClass() != obj.getClass()) {
+ return false;
+ }
+
+ final AccessPolicy other = (AccessPolicy) obj;
+
+ return this.identifier.equals(other.getIdentifier())
+ &&
this.resource.getIdentifier().equals(other.getResource().getIdentifier())
+ && this.entities.equals(other.entities)
+ && this.actions.equals(other.actions);
+ }
+
+ @Override
+ public int hashCode() {
+ int hash = 7;
+ hash = 53 * hash + Objects.hash(this.identifier, this.resource,
this.entities, this.actions);
--- End diff --
Good call, will update all the hashCode implementations
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