1

server/web3dbspider/services/dbevent_process.js

@@ -49,7 +49,7 @@ class DbEventProcess extends BaseService {
     this.progInfo = this.event['progressInfo'];
     this.contractAddress = this.net.getContractAddressByName(this.getContractName());
     this.lastIdx = await this.getLastIdx();
-    this.progInfo['lastIdx'] = this.lastIdx.toString();
+    this.progInfo['proclastIdx'] = this.lastIdx.toString();
     await this.start();
   }
 
@@ -61,7 +61,46 @@ class DbEventProcess extends BaseService {
   }
 
   async pullEvent() {
-    const logHead = this.getInstanceName() + ' pullEvent: ';
+    const logHead = this.getInstanceName() + ' pullDbEvent: ';
+    const tableName = this.getTableName();
+    try {
+      const startIdx = this.getStartIdx();
+      const endIdx = this.getEndIdx();
+      ++this.progInfo['procPullCount'];
+      if (startIdx >= endIdx) {
+        return;
+      }
+      const {err, rows} = await this.conn.execQuery(
+        'SELECT * FROM ${tableName} WHERE `idx` > ? AND `idx` <= ? ' +
+          'AND net_id = ? AND event_name = ? AND contract_address = ? ' +
+          'LIMIT ' + LIMIT_COUNT,
+        [
+          startIdx.toString(),
+          endIdx.toString(),
+          this.getNetId(),
+          this.getEventName(),
+          this.getContractAddress()
+        ]);
+      if (err) {
+        throw err;
+      }
+      if (rows.length > 0) {
+        await utils.serial(
+          rows,
+          async (row) => {
+            await this.saveToDb(row);
+          }
+        );
+        this.progInfo['procEventCount'] += rows.length;
+      } else {
+        this.lastIdx = endIdx;
+      }
+      this.progInfo['procLastIdx'] = this.lastIdx.toString();
+      await this.saveLastIdx(this.lastIdx);
+    } catch (err) {
+        log.error(logHead + err);
+        await utils.sleep(5000 + utils.randRange(1000, 3000));
+    }
   }
 
   getStartIdx() {