add test app

binding/nodejs/tests/test.app.js

@@ -0,0 +1,79 @@
+const Searcher = require('../')
+const path = require('path')
+const { ArgumentParser } = require('argparse')
+
+// 处理输入参数
+const parser = new ArgumentParser({
+  add_help: true,
+  description: 'ip2region test app',
+  prog: 'node test.app.js',
+  usage: 'Usage %(prog)s <agrs>'
+})
+
+parser.add_argument('-d', '--db', { help: `ip2region binary xdb file path, default: ${path.join(__dirname, '..', '..', '..', 'data', 'ip2region.xdb')}` })
+parser.add_argument('-c', '--cache-policy', { help: 'cache policy: file/vectorIndex/content, default: content' })
+
+const args = parser.parse_args()
+const db = args.db
+const policy = args.cache_policy
+
+// 创建searcher对象
+const createSearcher = () => {
+  const dbPath = db || '../../data/ip2region.xdb'
+  const cachePolicy = policy || 'content'
+
+  let searcher = null
+  let vectorIndex = null
+  let buffer = null
+
+  switch (cachePolicy) {
+    case 'file':
+      searcher = Searcher.newWithFileOnly(dbPath)
+      break
+    case 'vectorIndex':
+      vectorIndex = Searcher.loadVectorIndexFromFile(dbPath)
+      searcher = Searcher.newWithVectorIndex(dbPath, vectorIndex)
+      break
+    default:
+      buffer = Searcher.loadContentFromFile(dbPath)
+      searcher = Searcher.newWithBuffer(buffer)
+  }
+  console.log('parameters: ')
+  console.log(`    dbPath: ${dbPath}`)
+  console.log(`    cache-policy: ${cachePolicy}`)
+  console.log('')
+  return searcher
+}
+
+// 从控制台读取用户一行输入
+const readlineSync = () => {
+  return new Promise((resolve, reject) => {
+    process.stdin.resume()
+    process.stdin.on('data', data => {
+      process.stdin.pause()
+      resolve(data.toString('utf-8'))
+    })
+  })
+}
+
+const searcher = createSearcher()
+
+async function main () {
+  console.log('type \'quit\' to exit')
+  while (true) {
+    process.stdout.write('ip2region>> ')
+    const ip = (await readlineSync()).trim()
+    if (ip === 'quit') {
+      process.exit(0)
+    } else {
+      try {
+        const response = await searcher.search(ip)
+        console.log(response)
+      } catch (err) {
+        console.log(err)
+      }
+    }
+  }
+}
+
+main()