Examples with TaskEvent com.alibaba.otter.node.common.config.model.NodeTask.TaskEvent used on opensource projects

Example 1 with TaskEvent

use of com.alibaba.otter.node.common.config.model.NodeTask.TaskEvent in project otter by alibaba.

the class NodeTaskServiceImpl method retain.

// 将target的目标除去source中的信息
private NodeTask retain(NodeTask targetTask, NodeTask sourceTask) {
    List<StageType> stages = targetTask.getStage();
    List<TaskEvent> events = targetTask.getEvent();
    List<StageType> mergeStates = new ArrayList<StageType>();
    List<TaskEvent> mergeEvents = new ArrayList<TaskEvent>();
    // 合并两者的交集的数据
    for (int i = 0; i < stages.size(); i++) {
        StageType stage = stages.get(i);
        TaskEvent event = events.get(i);
        // 找到source节点对应的TaskEvent
        TaskEvent sourceEvent = getMatchStage(sourceTask, stage);
        if (sourceEvent != null && sourceEvent != event) {
            // 存在相同的stage节点，判断event是否相同，不同则则添加
            mergeStates.add(stage);
            mergeEvents.add(event);
        }
    }
    // 添加targtTask中特有的stage/event
    for (int i = 0; i < stages.size(); i++) {
        StageType stage = stages.get(i);
        TaskEvent event = events.get(i);
        if (getMatchStage(sourceTask, stage) == null) {
            mergeStates.add(stage);
            mergeEvents.add(event);
        }
    }
    if (mergeStates.size() > 0) {
        NodeTask result = new NodeTask();
        result.setPipeline(targetTask.getPipeline());
        result.setEvent(mergeEvents);
        result.setStage(mergeStates);
        result.setShutdown(targetTask.isShutdown());
        return result;
    } else {
        return null;
    }
}

Example 2 with TaskEvent

use of com.alibaba.otter.node.common.config.model.NodeTask.TaskEvent in project otter by alibaba.

the class NodeTaskServiceImpl method merge.

// 合并两个NodeTask对象
private void merge(NodeTask target, NodeTask source) {
    List<StageType> stages = target.getStage();
    List<TaskEvent> events = target.getEvent();
    List<StageType> mergeStates = new ArrayList<StageType>();
    List<TaskEvent> mergeEvents = new ArrayList<TaskEvent>();
    // 合并两者的交集的数据
    for (int i = 0; i < stages.size(); i++) {
        StageType stage = stages.get(i);
        TaskEvent event = events.get(i);
        mergeStates.add(stage);
        // 找到source节点对应的TaskEvent，使用最新值
        TaskEvent sourceEvent = getMatchStage(source, stage);
        if (sourceEvent == null) {
            mergeEvents.add(event);
        } else {
            mergeEvents.add(sourceEvent);
        }
    }
    // 添加两者的差集，添加source中特有的节点
    List<StageType> sourceStages = source.getStage();
    List<TaskEvent> sourceEvents = source.getEvent();
    for (int i = 0; i < sourceStages.size(); i++) {
        StageType stage = sourceStages.get(i);
        TaskEvent event = sourceEvents.get(i);
        if (mergeStates.contains(stage)) {
            continue;
        }
        mergeStates.add(stage);
        mergeEvents.add(event);
    }
    // 更新一下数据
    target.setEvent(mergeEvents);
    target.setStage(mergeStates);
    // 更新下shutdown变量
    target.setShutdown(source.isShutdown());
}

Example 3 with TaskEvent

use of com.alibaba.otter.node.common.config.model.NodeTask.TaskEvent in project otter by alibaba.

the class NodeTaskServiceImpl method parseNodeTask.

// 解析一下tasks为NodeTask对象
private List<NodeTask> parseNodeTask(Channel channel) {
    List<NodeTask> tasks = new ArrayList<NodeTask>();
    List<Pipeline> pipelines = channel.getPipelines();
    Long nid = configClientService.currentNode().getId();
    TaskEvent taksEvent = null;
    if (channel.getStatus().isStart()) {
        taksEvent = TaskEvent.CREATE;
    } else if (channel.getStatus().isStop()) {
        taksEvent = TaskEvent.DELETE;
    } else if (channel.getStatus().isPause()) {
        // modify by ljh at 2013-01-31 , pause状态也需要启动setl线程
        // 因为在发布的时候，restart指令不会推送指令，导致setl线程没有启动
        // return tasks;
        taksEvent = TaskEvent.CREATE;
    }
    // 处理当前最新的状态
    for (Pipeline pipeline : pipelines) {
        List<Node> sNodes = pipeline.getSelectNodes();
        for (Node node : sNodes) {
            if (nid.equals(node.getId())) {
                // 判断是否为当前的nid
                NodeTask task = new NodeTask();
                task.setPipeline(pipeline);
                NodeTask matchTask = getMatchTask(tasks, task);
                if (matchTask == null) {
                    matchTask = task;
                    tasks.add(task);
                }
                matchTask.setPipeline(pipeline);
                matchTask.getStage().add(StageType.SELECT);
                matchTask.getEvent().add(taksEvent);
            }
        }
        List<Node> eNodes = pipeline.getExtractNodes();
        for (Node node : eNodes) {
            if (nid.equals(node.getId())) {
                // 判断是否为当前的nid
                NodeTask task = new NodeTask();
                task.setPipeline(pipeline);
                NodeTask matchTask = getMatchTask(tasks, task);
                if (matchTask == null) {
                    matchTask = task;
                    tasks.add(task);
                }
                matchTask.getStage().add(StageType.EXTRACT);
                matchTask.getEvent().add(taksEvent);
            }
        }
        List<Node> tlNodes = pipeline.getLoadNodes();
        for (Node node : tlNodes) {
            if (nid.equals(node.getId())) {
                // 判断是否为当前的nid
                NodeTask task = new NodeTask();
                task.setPipeline(pipeline);
                NodeTask matchTask = getMatchTask(tasks, task);
                if (matchTask == null) {
                    matchTask = task;
                    tasks.add(task);
                }
                matchTask.getStage().add(StageType.TRANSFORM);
                matchTask.getEvent().add(taksEvent);
                matchTask.getStage().add(StageType.LOAD);
                matchTask.getEvent().add(taksEvent);
            }
        }
    }
    List<Long> pipelineIds = Lists.transform(channel.getPipelines(), new Function<Pipeline, Long>() {

        public Long apply(Pipeline input) {
            return input.getId();
        }
    });
    // 合并一下target中特有的记录，取一下反操作，表示要关闭
    for (NodeTask task : allTasks) {
        Pipeline pipeline = task.getPipeline();
        if (pipeline.getChannelId().equals(channel.getId()) && !pipelineIds.contains(pipeline.getId())) {
            // /是同一个channel，但对应的pipeline不在列表里
            // 处理pipeline删除
            NodeTask deletePipelineTask = new NodeTask();
            deletePipelineTask.setPipeline(pipeline);
            List<StageType> stages = task.getStage();
            List<TaskEvent> events = task.getEvent();
            for (int i = 0; i < stages.size(); i++) {
                StageType stage = stages.get(i);
                TaskEvent event = events.get(i);
                if (event.isCreate()) {
                    deletePipelineTask.getStage().add(stage);
                    // 添加为关闭
                    deletePipelineTask.getEvent().add(TaskEvent.DELETE);
                }
            }
            tasks.add(deletePipelineTask);
        }
        if (pipelineIds.contains(pipeline.getId())) {
            // 在当前的channel列表中
            boolean needAdd = false;
            // 找到对应的匹配
            NodeTask matchTask = getMatchTask(tasks, task);
            if (matchTask == null) {
                matchTask = new NodeTask();
                matchTask.setPipeline(pipeline);
                needAdd = true;
            }
            List<StageType> stages = task.getStage();
            List<TaskEvent> events = task.getEvent();
            for (int i = 0; i < stages.size(); i++) {
                StageType stage = stages.get(i);
                TaskEvent event = events.get(i);
                TaskEvent matchEvent = getMatchStage(matchTask, stage);
                if (matchEvent == null && event.isCreate()) {
                    // 对应的stage已经被移除，触发一个DELETE操作
                    matchTask.getStage().add(stage);
                    matchTask.getEvent().add(TaskEvent.DELETE);
                }
            }
            if (needAdd && matchTask.getStage().size() > 0) {
                tasks.add(matchTask);
            }
        }
    }
    // 判断当前的task是否需要全部关闭
    for (NodeTask task : tasks) {
        boolean shutdown = true;
        for (TaskEvent event : task.getEvent()) {
            // task已为当前最新节点信息
            shutdown &= event.isDelete();
        }
        task.setShutdown(shutdown);
    }
    return tasks;
}

Example 4 with TaskEvent

use of com.alibaba.otter.node.common.config.model.NodeTask.TaskEvent in project otter by alibaba.

the class OtterController method startPipeline.

// ===================== helper method ======================
public void startPipeline(NodeTask nodeTask) {
    Long pipelineId = nodeTask.getPipeline().getId();
    releasePipeline(pipelineId);
    Map<StageType, GlobalTask> tasks = controllers.get(pipelineId);
    // 处理具体的任务命令
    List<StageType> stage = nodeTask.getStage();
    List<TaskEvent> event = nodeTask.getEvent();
    for (int i = 0; i < stage.size(); i++) {
        StageType stageType = stage.get(i);
        TaskEvent taskEvent = event.get(i);
        if (taskEvent.isCreate()) {
            startTask(nodeTask.getPipeline(), tasks, stageType);
        } else {
            stopTask(tasks, stageType);
        }
    }
}