Github user WireBaron commented on a diff in the pull request:
https://github.com/apache/geode/pull/716#discussion_r133597935
--- Diff:
geode-core/src/main/java/org/apache/geode/internal/cache/tier/sockets/ExecutionContext.java
---
@@ -0,0 +1,54 @@
+/*
+ * 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.cache.tier.sockets;
+
+import org.apache.geode.cache.Cache;
+import org.apache.geode.distributed.internal.InternalLocator;
+
+public class ExecutionContext {
+ private Cache cache;
+ private InternalLocator locator;
+
+ public ExecutionContext(Cache cache) {
+ this.cache = cache;
+ }
+
+ public ExecutionContext(InternalLocator locator) {
+ this.locator = locator;
+ }
+
+ // This throws if the cache isn't present because we know that non of
the callers can take any
+ // reasonable action if the cache is not present
+ public Cache getCache() throws InvalidExecutionContextException {
+ if (cache != null) {
+ return cache;
+ } else {
+ throw new InvalidExecutionContextException(
+ "Execution context's cache was accessed but isn't present. Did
this happen on a locator? Operations on the locator should not try to operate
on a cache");
+ }
+ }
+
+ // This throws if the locator isn't present because we know that non of
the callers can take any
+ // reasonable action if the locator is not present
+ public InternalLocator getLocator() throws
InvalidExecutionContextException {
+ if (locator != null) {
+ return locator;
+ } else {
+ throw new InvalidExecutionContextException(
+ "Execution context's locator was accessed but isn't present. Did
this happen on a server? Operations on the locator should not try to operate on
a cache");
--- End diff --
Update comment "Operations on the server should not to try to operate on a
locator.
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