From 85207086e663323757bb1a16926833a63d57885c Mon Sep 17 00:00:00 2001
From: rob bygrave <robin.bygrave@gmail.com>
Date: Tue, 21 Apr 2020 21:55:51 +1200
Subject: [PATCH] #1995 - ENH: Add DatabaseConfig.isLocalOnlyL2Cache() ... to
 support disabling l2 cache plugins

---
 .../java/io/ebean/config/ServerConfig.java    | 20 +++++++++++++++++++
 .../server/core/InternalConfiguration.java    |  2 +-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/main/java/io/ebean/config/ServerConfig.java b/src/main/java/io/ebean/config/ServerConfig.java
index 34d5f2f83..b4a83e5f0 100644
--- a/src/main/java/io/ebean/config/ServerConfig.java
+++ b/src/main/java/io/ebean/config/ServerConfig.java
@@ -475,6 +475,11 @@ public class ServerConfig {
 
   private String enabledL2Regions;
 
+  /**
+   * Set to true to effectively disable L2 cache plugins.
+   */
+  private boolean localOnlyL2Cache;
+
   /**
    * Should the javax.validation.constraints.NotNull enforce a notNull column in DB.
    * If set to false, use io.ebean.annotation.NotNull or Column(nullable=true).
@@ -2860,6 +2865,7 @@ public class ServerConfig {
     collectQueryPlanThresholdMicros = p.getLong("collectQueryPlanThresholdMicros", collectQueryPlanThresholdMicros);
     docStoreOnly = p.getBoolean("docStoreOnly", docStoreOnly);
     disableL2Cache = p.getBoolean("disableL2Cache", disableL2Cache);
+    localOnlyL2Cache = p.getBoolean("localOnlyL2Cache", localOnlyL2Cache);
     enabledL2Regions = p.get("enabledL2Regions", enabledL2Regions);
     notifyL2CacheInForeground = p.getBoolean("notifyL2CacheInForeground", notifyL2CacheInForeground);
     explicitTransactionBeginMode = p.getBoolean("explicitTransactionBeginMode", explicitTransactionBeginMode);
@@ -3100,6 +3106,20 @@ public class ServerConfig {
     this.disableL2Cache = disableL2Cache;
   }
 
+  /**
+   * Return true to use local only L2 cache. Effectively ignore l2 cache plugin like ebean-redis etc.
+   */
+  public boolean isLocalOnlyL2Cache() {
+    return localOnlyL2Cache;
+  }
+
+  /**
+   * Force the use of local only L2 cache. Effectively ignore l2 cache plugin like ebean-redis etc.
+   */
+  public void setLocalOnlyL2Cache(boolean localOnlyL2Cache) {
+    this.localOnlyL2Cache = localOnlyL2Cache;
+  }
+
   /**
    * Returns if we use javax.validation.constraints.NotNull
    */
diff --git a/src/main/java/io/ebeaninternal/server/core/InternalConfiguration.java b/src/main/java/io/ebeaninternal/server/core/InternalConfiguration.java
index 38501baa5..c069bdd87 100644
--- a/src/main/java/io/ebeaninternal/server/core/InternalConfiguration.java
+++ b/src/main/java/io/ebeaninternal/server/core/InternalConfiguration.java
@@ -617,7 +617,7 @@ public class InternalConfiguration {
    */
   private SpiCacheManager initCacheManager() {
 
-    if (!online || serverConfig.isDisableL2Cache()) {
+    if (!online || serverConfig.isDisableL2Cache() || serverConfig.isLocalOnlyL2Cache()) {
       // use local only L2 cache implementation as placeholder
       return new DefaultServerCacheManager();
     }