Refactored api controllers

src/main/java/org/coucal/command/AbstractCommand.java

@@ -0,0 +1,46 @@
+/*
+ *  Copyright 2023 Ben Fortuna
+ *
+ *  Licensed 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.coucal.command;
+
+import java.util.concurrent.Callable;
+import java.util.function.Consumer;
+
+/**
+ * Base class for all commands that will invoke the specified consumer upon execution completion.
+ * @param <T> the command result type
+ */
+public abstract class AbstractCommand<T> implements Callable<Integer> {
+
+    private Consumer<T> consumer;
+
+    public AbstractCommand() {
+        this.consumer = DefaultOutputHandlers.STDOUT_PRINTER();
+    }
+
+    public AbstractCommand(Consumer<T> consumer) {
+        this.consumer = consumer;
+    }
+
+    public AbstractCommand<T> withConsumer(Consumer<T> consumer) {
+        this.consumer = consumer;
+        return this;
+    }
+
+    public final Consumer<T> getConsumer() {
+        return consumer;
+    }
+}