Refactor resource configurations to ensure all configurations are ser…

…ializable. Require executors to be supplied in code separate from configurations.

api/src/main/java/net/kuujo/copycat/CopycatConfig.java

@@ -20,13 +20,10 @@
 import net.kuujo.copycat.util.AbstractConfigurable;
 import net.kuujo.copycat.util.Configurable;
 import net.kuujo.copycat.util.ConfigurationException;
-import net.kuujo.copycat.util.concurrent.NamedThreadFactory;
 import net.kuujo.copycat.util.internal.Assert;
 import net.kuujo.copycat.util.serializer.Serializer;
 
 import java.util.Map;
-import java.util.concurrent.Executor;
-import java.util.concurrent.Executors;
 
 /**
  * Copycat configuration.
@@ -41,8 +38,6 @@ public class CopycatConfig extends AbstractConfigurable {
   private static final String DEFAULT_CONFIGURATION = "copycat-default";
   private static final String CONFIGURATION = "copycat";
 
-  private Executor executor = Executors.newSingleThreadExecutor(new NamedThreadFactory("copycat-%d"));
-
   public CopycatConfig() {
     super(CONFIGURATION, DEFAULT_CONFIGURATION);
   }
@@ -210,35 +205,6 @@ public CopycatConfig withDefaultSerializer(Serializer serializer) {
     return this;
   }
 
-  /**
-   * Sets the Copycat executor.
-   *
-   * @param executor The Copycat executor.
-   */
-  public void setDefaultExecutor(Executor executor) {
-    this.executor = Assert.isNotNull(executor, "executor");
-  }
-
-  /**
-   * Returns the Copycat executor.
-   *
-   * @return The Copycat executor or {@code null} if no executor was specified.
-   */
-  public Executor getDefaultExecutor() {
-    return executor;
-  }
-
-  /**
-   * Sets the Copycat executor, returning the configuration for method chaining.
-   *
-   * @param executor The Copycat executor.
-   * @return The Copycat configuration.
-   */
-  public CopycatConfig withDefaultExecutor(Executor executor) {
-    setDefaultExecutor(executor);
-    return this;
-  }
-
   @Override
   public String toString() {
     return String.format("%s[%s]", getClass().getSimpleName(), config.root().unwrapped());