Browse Source
This patch includes: - target assignment changes : accepting only one at a time according to the updated protocol. - changes for error handling, leaving responsibility in the heartbeatManager and exposing only the functionality for when the state needs to be updated (on successful HB, on fencing, on fatal failure) - allow transitions for failures when joining - tests & minor improvements/fixes addressing initial version review Reviewers: Kirk True <ktrue@confluent.io>, Philip Nee <pnee@confluent.io>, David Jacot <djacot@confluent.io>pull/14577/head
Lianet Magrans
11 months ago
committed by
GitHub
9 changed files with 296 additions and 297 deletions
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@@ -1,88 +0,0 @@
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/* |
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* Licensed to the Apache Software Foundation (ASF) under one or more |
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* contributor license agreements. See the NOTICE file distributed with |
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* this work for additional information regarding copyright ownership. |
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* The ASF licenses this file to You under the Apache License, Version 2.0 |
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* (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.apache.kafka.clients.consumer.internals; |
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import java.util.Objects; |
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import java.util.Optional; |
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/** |
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* Selection of a type of assignor used by a member to get partitions assigned as part of a |
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* consumer group. Currently supported assignors are: |
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* <li>SERVER assignors</li> |
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* <p/> |
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* Server assignors include a name of the server assignor selected, ex. uniform, range. |
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*/ |
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public class AssignorSelection { |
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public enum Type { SERVER } |
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private final AssignorSelection.Type type; |
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private final Optional<String> serverAssignor; |
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private AssignorSelection(Type type, String serverAssignor) { |
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this.type = type; |
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if (type == Type.SERVER) { |
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this.serverAssignor = Optional.ofNullable(serverAssignor); |
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} else { |
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throw new IllegalArgumentException("Unsupported assignor type " + type); |
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} |
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} |
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public static AssignorSelection newServerAssignor(String serverAssignor) { |
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if (serverAssignor == null) { |
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throw new IllegalArgumentException("Selected server assignor name cannot be null"); |
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} |
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if (serverAssignor.isEmpty()) { |
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throw new IllegalArgumentException("Selected server assignor name cannot be empty"); |
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} |
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return new AssignorSelection(Type.SERVER, serverAssignor); |
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} |
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public static AssignorSelection defaultAssignor() { |
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// TODO: review default selection
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return new AssignorSelection(Type.SERVER, null); |
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} |
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public Optional<String> serverAssignor() { |
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return this.serverAssignor; |
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} |
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public Type type() { |
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return this.type; |
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} |
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@Override |
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public boolean equals(Object assignorSelection) { |
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if (this == assignorSelection) return true; |
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if (assignorSelection == null || getClass() != assignorSelection.getClass()) return false; |
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return Objects.equals(((AssignorSelection) assignorSelection).type, this.type) && |
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Objects.equals(((AssignorSelection) assignorSelection).serverAssignor, this.serverAssignor); |
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} |
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@Override |
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public int hashCode() { |
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return Objects.hash(type, serverAssignor); |
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} |
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@Override |
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public String toString() { |
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return "AssignorSelection(" + |
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"type=" + type + ", " + |
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"serverAssignor='" + serverAssignor + '\'' + |
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')'; |
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} |
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} |
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@ -1,58 +0,0 @@
@@ -1,58 +0,0 @@
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/* |
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* Licensed to the Apache Software Foundation (ASF) under one or more |
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* contributor license agreements. See the NOTICE file distributed with |
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* this work for additional information regarding copyright ownership. |
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* The ASF licenses this file to You under the Apache License, Version 2.0 |
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* (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.apache.kafka.clients.consumer; |
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import org.apache.kafka.clients.consumer.internals.AssignorSelection; |
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import org.junit.jupiter.api.Test; |
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import static org.junit.jupiter.api.Assertions.assertEquals; |
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import static org.junit.jupiter.api.Assertions.assertNotEquals; |
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import static org.junit.jupiter.api.Assertions.assertThrows; |
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import static org.junit.jupiter.api.Assertions.assertTrue; |
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public class AssignorSelectionTest { |
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@Test |
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public void testServerAssignorCannotBeNullOrEmptyIfSelected() { |
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assertThrows(IllegalArgumentException.class, |
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() -> AssignorSelection.newServerAssignor(null)); |
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assertThrows(IllegalArgumentException.class, |
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() -> AssignorSelection.newServerAssignor("")); |
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} |
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@Test |
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public void testEquals() { |
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// Server assignors
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AssignorSelection selection1 = AssignorSelection.newServerAssignor("range"); |
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AssignorSelection selection2 = AssignorSelection.newServerAssignor("range"); |
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assertEquals(selection1, selection1); |
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assertEquals(selection1, selection2); |
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AssignorSelection selection3 = AssignorSelection.newServerAssignor("uniform"); |
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assertNotEquals(selection1, selection3); |
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assertNotEquals(selection1, null); |
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} |
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@Test |
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public void testServerAssignorSelection() { |
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String assignorName = "uniform"; |
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AssignorSelection selection = AssignorSelection.newServerAssignor(assignorName); |
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assertEquals(AssignorSelection.Type.SERVER, selection.type()); |
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assertTrue(selection.serverAssignor().isPresent()); |
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assertEquals(assignorName, selection.serverAssignor().get()); |
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} |
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} |
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