001/*
002 * Copyright 2022-2026 Revetware LLC.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package com.soklet;
018
019import org.jspecify.annotations.NonNull;
020
021import javax.annotation.concurrent.ThreadSafe;
022
023/**
024 * Thread-safe listener for application-owned MCP task-change events.
025 * <p>
026 * Events are deliberately coarse and carry only a task ID. Soklet performs a
027 * fresh, authorized lookup through {@link McpTaskManager} before it projects a
028 * task notification; event delivery is never authoritative task state.
029 * Publishers may invoke one listener concurrently for independent events.
030 * Listener implementations should return promptly and must not assume which
031 * thread performs delivery.
032 *
033 * @author <a href="https://www.revetkn.com">Mark Allen</a>
034 */
035@ThreadSafe
036@FunctionalInterface
037public interface McpTaskEventListener {
038        /**
039         * Reports that the durable state of a task may have changed.
040         *
041         * @param taskId changed task identifier
042         */
043        void onTaskChanged(@NonNull String taskId);
044}