请求按指定优先级排序电站站点信息JSON数组的技术方案

Got it, let's work through how to sort your power station sites by the specified priority levels. Here's a practical, easy-to-implement technical solution:

1. 明确优先级映射规则 #

First, we need to formalize the priority hierarchy (note: I'll assume a placeholder type value for "部分系统异常" since it wasn't fully specified—replace it with your actual business-defined value later):

• 设备断开 (type: "X"): Highest priority (weight = 4)
• 系统错误 (type: "pause"): Second priority (weight = 3)
• 部分系统异常 (e.g., type: "warn"): Third priority (weight = 2)
• 正常运行 (e.g., your sample's type: "grn-blank"): Lowest priority (weight = 1)

2. Core Sorting Logic Implementation #

We'll use JavaScript as an example (since JSON processing is common in JS), but the same logic translates easily to other languages like Python or Java.

Example Code (JavaScript) #

// Your original site data
const siteData = { 
  "allSitesInfo": [
    { 
      "title": "Site001", 
      "website": "http://www.example.com/", 
      "lat": "22.70896", 
      "lng": "120.35197", 
      "content": { "PR": "87.89", "kWh": "1700" }, 
      "type": "grn-blank" 
    },
    // Add test entries for verification
    { "title": "Site002", "type": "X" },
    { "title": "Site003", "type": "pause" },
    { "title": "Site004", "type": "warn" }
  ] 
};

// Define priority weight mapping
const priorityMap = {
  "X": 4,
  "pause": 3,
  "warn": 2, // Replace with your actual "部分系统异常" type value
  "grn-blank": 1
};

// Custom sorting function
const sortSitesByPriority = (sites) => {
  // Create a copy to avoid mutating the original array
  return [...sites].sort((siteA, siteB) => {
    // Get priority weight, default to 1 (normal state) if type is unrecognized
    const priorityA = priorityMap[siteA.type] || 1;
    const priorityB = priorityMap[siteB.type] || 1;
    // Sort in descending order (higher priority first)
    return priorityB - priorityA;
  });
};

// Execute sorting
const sortedSites = sortSitesByPriority(siteData.allSitesInfo);
console.log(sortedSites);

3. Cross-Language Adaptation & Extensions #

• Python Version: The logic is identical—use a priority dictionary and the sorted() function with a custom key:

priority_map = {
    "X": 4,
    "pause": 3,
    "warn": 2,
    "grn-blank": 1
}

sorted_sites = sorted(
    site_data["allSitesInfo"],
    key=lambda site: priority_map.get(site["type"], 1),
    reverse=True
)

• Dynamic Adjustments: If you need to update priorities later, just modify the weight values in the mapping table—no changes to the core sorting logic required.
• Unrecognized Types: The code defaults unlisted type values to the lowest priority. You can tweak this behavior (e.g., log a warning, assign to a specific category) based on your business needs.

内容的提问来源于stack exchange，提问作者Penny Liu