[ 
https://issues.apache.org/jira/browse/GEODE-3793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16259903#comment-16259903
 ] 

ASF GitHub Bot commented on GEODE-3793:
---------------------------------------

bschuchardt closed pull request #1058: GEODE-3793: Refactor version validation 
into testable class.
URL: https://github.com/apache/geode/pull/1058
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git 
a/geode-protobuf/src/main/java/org/apache/geode/internal/protocol/protobuf/v1/operations/HandshakeRequestOperationHandler.java
 
b/geode-protobuf/src/main/java/org/apache/geode/internal/protocol/protobuf/v1/operations/HandshakeRequestOperationHandler.java
index 9fd480b576..1521fc063c 100644
--- 
a/geode-protobuf/src/main/java/org/apache/geode/internal/protocol/protobuf/v1/operations/HandshakeRequestOperationHandler.java
+++ 
b/geode-protobuf/src/main/java/org/apache/geode/internal/protocol/protobuf/v1/operations/HandshakeRequestOperationHandler.java
@@ -34,6 +34,7 @@
 public class HandshakeRequestOperationHandler implements
     OperationHandler<ConnectionAPI.HandshakeRequest, 
ConnectionAPI.HandshakeResponse, ClientProtocol.ErrorResponse> {
   private static final Logger logger = LogManager.getLogger();
+  private final VersionValidator validator = new VersionValidator();
 
   @Override
   public Result<ConnectionAPI.HandshakeResponse, ClientProtocol.ErrorResponse> 
process(
@@ -47,11 +48,9 @@
       return Failure.of(ProtobufResponseUtilities.makeErrorResponse(e));
     }
 
-    boolean handshakeSucceeded = false;
-    // Require an exact match with our version of the protobuf code for this 
implementation
-    if (request.getMajorVersion() == 
ConnectionAPI.MajorVersions.CURRENT_MAJOR_VERSION_VALUE
-        && request.getMinorVersion() == 
ConnectionAPI.MinorVersions.CURRENT_MINOR_VERSION_VALUE) {
-      handshakeSucceeded = true;
+    final boolean handshakeSucceeded =
+        validator.isValid(request.getMajorVersion(), 
request.getMinorVersion());
+    if (handshakeSucceeded) {
       ConnectionStateProcessor nextStateProcessor = 
stateProcessor.handshakeSucceeded();
       messageExecutionContext.setConnectionStateProcessor(nextStateProcessor);
     }
diff --git 
a/geode-protobuf/src/main/java/org/apache/geode/internal/protocol/protobuf/v1/operations/VersionValidator.java
 
b/geode-protobuf/src/main/java/org/apache/geode/internal/protocol/protobuf/v1/operations/VersionValidator.java
new file mode 100644
index 0000000000..86eea8603d
--- /dev/null
+++ 
b/geode-protobuf/src/main/java/org/apache/geode/internal/protocol/protobuf/v1/operations/VersionValidator.java
@@ -0,0 +1,43 @@
+/*
+ * 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.geode.internal.protocol.protobuf.v1.operations;
+
+import org.apache.geode.internal.protocol.protobuf.v1.ConnectionAPI;
+
+public class VersionValidator {
+  private int majorVersion;
+  private int minorVersion;
+
+  public VersionValidator() {
+    this(ConnectionAPI.MajorVersions.CURRENT_MAJOR_VERSION_VALUE,
+        ConnectionAPI.MinorVersions.CURRENT_MINOR_VERSION_VALUE);
+  }
+
+  VersionValidator(int majorVersion, int minorVersion) {
+    this.majorVersion = majorVersion;
+    this.minorVersion = minorVersion;
+  }
+
+  public boolean isValid(int majorVersion, int minorVersion) {
+    if (majorVersion != ConnectionAPI.MajorVersions.INVALID_MAJOR_VERSION_VALUE
+        && majorVersion == this.majorVersion) {
+      if (minorVersion != 
ConnectionAPI.MinorVersions.INVALID_MINOR_VERSION_VALUE
+          && minorVersion <= this.minorVersion) {
+        return true;
+      }
+    }
+    return false;
+  }
+}
diff --git 
a/geode-protobuf/src/test/java/org/apache/geode/internal/protocol/protobuf/v1/operations/HandshakeRequestOperationHandlerJUnitTest.java
 
b/geode-protobuf/src/test/java/org/apache/geode/internal/protocol/protobuf/v1/operations/HandshakeRequestOperationHandlerJUnitTest.java
index 8b7416f6eb..0641e5d196 100644
--- 
a/geode-protobuf/src/test/java/org/apache/geode/internal/protocol/protobuf/v1/operations/HandshakeRequestOperationHandlerJUnitTest.java
+++ 
b/geode-protobuf/src/test/java/org/apache/geode/internal/protocol/protobuf/v1/operations/HandshakeRequestOperationHandlerJUnitTest.java
@@ -167,8 +167,8 @@ public void testAuthorizingStateFailsHandshake() throws 
Exception {
         errorMessage.getError().getErrorCode());
   }
 
-  private ConnectionAPI.HandshakeRequest generateHandshakeRequest(int 
minorVersion,
-      int majorVersion) {
+  private ConnectionAPI.HandshakeRequest generateHandshakeRequest(int 
majorVersion,
+      int minorVersion) {
     return 
ConnectionAPI.HandshakeRequest.newBuilder().setMajorVersion(majorVersion)
         .setMinorVersion(minorVersion).build();
   }
diff --git 
a/geode-protobuf/src/test/java/org/apache/geode/internal/protocol/protobuf/v1/operations/VersionValidatorJUnitTest.java
 
b/geode-protobuf/src/test/java/org/apache/geode/internal/protocol/protobuf/v1/operations/VersionValidatorJUnitTest.java
new file mode 100644
index 0000000000..b59d154629
--- /dev/null
+++ 
b/geode-protobuf/src/test/java/org/apache/geode/internal/protocol/protobuf/v1/operations/VersionValidatorJUnitTest.java
@@ -0,0 +1,59 @@
+/*
+ * 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.geode.internal.protocol.protobuf.v1.operations;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+import org.apache.geode.internal.protocol.protobuf.v1.ConnectionAPI;
+import org.apache.geode.test.junit.categories.UnitTest;
+
+@Category(UnitTest.class)
+public class VersionValidatorJUnitTest {
+  private static final int MAJOR_VERSION = 3;
+  private static final int MINOR_VERSION = 3;
+  private static final VersionValidator validator =
+      new VersionValidator(MAJOR_VERSION, MINOR_VERSION);
+
+  @Test
+  public void testInvalidVersions() throws Exception {
+    assertFalse(
+        validator.isValid(MAJOR_VERSION, 
ConnectionAPI.MinorVersions.INVALID_MINOR_VERSION_VALUE));
+    assertFalse(
+        
validator.isValid(ConnectionAPI.MajorVersions.INVALID_MAJOR_VERSION_VALUE, 
MINOR_VERSION));
+    
assertFalse(validator.isValid(ConnectionAPI.MajorVersions.INVALID_MAJOR_VERSION_VALUE,
+        ConnectionAPI.MinorVersions.INVALID_MINOR_VERSION_VALUE));
+  }
+
+  @Test
+  public void testCurrentVersions() throws Exception {
+    assertTrue(validator.isValid(MAJOR_VERSION, MINOR_VERSION));
+  }
+
+  @Test
+  public void testPreviousMajorVersions() throws Exception {
+    assertFalse(validator.isValid(MAJOR_VERSION - 1, MINOR_VERSION));
+    assertFalse(validator.isValid(MAJOR_VERSION - 2, MINOR_VERSION));
+  }
+
+  @Test
+  public void testPreviousMinorVersions() throws Exception {
+    assertTrue(validator.isValid(MAJOR_VERSION, MINOR_VERSION - 1));
+    assertTrue(validator.isValid(MAJOR_VERSION, MINOR_VERSION - 2));
+  }
+}


 

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> Test/prove out new protocol's versioning/message additions
> ----------------------------------------------------------
>
>                 Key: GEODE-3793
>                 URL: https://issues.apache.org/jira/browse/GEODE-3793
>             Project: Geode
>          Issue Type: Task
>          Components: client/server
>            Reporter: Geode Integration
>
> Test and prove out the new protocol's versioning/addition of messages.
> Expected: 
> Clients on a different major version will receive a helpful error message 
> (and are not supported)
> Clients on the same major version (but possibly different minor version) will 
> be supported.
> So, devs should be able to add new messages to the protocol, bumping the 
> minor version, and clients without knowledge of that message should still be 
> supported (as long as they're on the same major version).



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