feat: check DIMSE is setup or not

- Use port to check DIMSE is setup or not
- But have side effect that the port may not be used by DIMSE

config-class.js

@@ -67,6 +67,13 @@ class DicomDimseConfig {
         }
     }
 
+    getPort() {
+        let bindArgIndex = this.dcm4cheQrscpArgv.findIndex(v => v === "-b");
+        /** @type {string} */
+        let bindInfo = this.dcm4cheQrscpArgv[bindArgIndex + 1];
+        return bindInfo.split(":").pop();
+    }
+
 }
 
 class FhirConfig {

server.js

@@ -90,7 +90,18 @@ if (osPlatform.includes("linux")) {
     if (raccoonConfig.dicomDimseConfig.enableDimse) {
         const { java } = require("./models/DICOM/dcm4che/java-instance");
         let dcmQrScpClass = await java.importClassAsync("org.dcm4che3.tool.dcmqrscp.DcmQRSCP");
-        await dcmQrScpClass.main(raccoonConfig.dicomDimseConfig.dcm4cheQrscpArgv);
+        const net = require("net");
+        let checkPortServer = net.createServer()
+        .once("listening", async function () {
+            checkPortServer.close();
+            await dcmQrScpClass.main(raccoonConfig.dicomDimseConfig.dcm4cheQrscpArgv);
+        })
+        .once("error", function(err) {
+            if(err.code === "EADDRINUSE") {
+                console.log("QRSCP's port is already in use, please check is QRSCP running or another app running");
+            }
+        })
+        .listen(raccoonConfig.dicomDimseConfig.getPort());
     }
 })();