<?php

class Node
{

    const START_NODE = "START_NODE";
    const TASK_NODE = "TASK_NODE";
    const LOGIC_NODE = "LOGIC_NODE";
    const SPLIT_NODE = "SPLIT_NODE";
    const MERGE_NODE = "MERGE_NODE";
    const FLOW_NODE =  "FLOW_NODE";
    const END_NODE =   "END_NODE";
    const COUNTER_SIGN_TASK =   "COUNTER_SIGN_TASK";
    const COUNTER_SIGN_SUBTASK =   "COUNTER_SIGN_SUBTASK";
    const ALL_NODE =  [
        self::START_NODE,
        self::TASK_NODE,
        self::LOGIC_NODE,
        self::SPLIT_NODE,
        self::FLOW_NODE,
        self::MERGE_NODE,
        self::END_NODE,
        self::COUNTER_SIGN_TASK,
        self::COUNTER_SIGN_SUBTASK
    ];


    static $nodeClasses = array(
        self::START_NODE=>"StartNode",
        self::TASK_NODE => "TaskNode",
        self::LOGIC_NODE => "LogicNode",
        self::SPLIT_NODE => "SplitNode",
        self::FLOW_NODE => "FlowNode",
        self::MERGE_NODE => "MergeNode",
        self::END_NODE => "EndNode",
        self::COUNTER_SIGN_TASK => "CounterSignTask",
        self::COUNTER_SIGN_SUBTASK => "CounterSignSubtask"
    );
    static $nodeTypes = array(
        self::START_NODE,
        self::TASK_NODE,
        self::LOGIC_NODE,
        self::SPLIT_NODE,
        self::FLOW_NODE,
        self::MERGE_NODE,
        self::END_NODE,
        self::COUNTER_SIGN_TASK,
        self::COUNTER_SIGN_SUBTASK
    );
    static $handlerClasses = array(
        self::START_NODE=>"StartNodeHandler",
        self::TASK_NODE => "TaskNodeHandler",
        self::LOGIC_NODE => "LogicNodeHandler",
        self::SPLIT_NODE => "SplitNodeHandler",
        self::FLOW_NODE => "FlowNodeHandler",
        self::MERGE_NODE => "MergeNodeHandler",
        self::END_NODE => "EndNodeHandler",
        self::COUNTER_SIGN_TASK => "CounterSignTaskHandler",
        self::COUNTER_SIGN_SUBTASK => "CounterSignSubtaskHandler"
    );
    protected  $nodeProperty;

    /**
     *返回节点类型
     * @param $param
     */
    function __construct($param)
    {
        $this->nodeProperty = $param;
    }

    public function getType()
    {
        return $this->nodeProperty['nodeType'];
    }
    public function getNodeId()
    {
        return $this->nodeProperty['nodeId'];
    }
    public function getNodeDescription()
    {
        return $this->nodeProperty['desc'];
    }
}