[GitHub] [shardingsphere] jingshanglu commented on a change in pull request #15115: Make It is easy to use with narayana

[GitBox <gi...@apache.org>]

jingshanglu commented on a change in pull request #15115:
URL: https://github.com/apache/shardingsphere/pull/15115#discussion_r794357094



##########
File path: shardingsphere-kernel/shardingsphere-transaction/shardingsphere-transaction-core/src/main/java/org/apache/shardingsphere/transaction/context/TransactionContextsBuilder.java
##########
@@ -61,4 +75,102 @@ private TransactionRule getTransactionRule() {
         Optional<TransactionRule> transactionRule = globalRules.stream().filter(each -> each instanceof TransactionRule).map(each -> (TransactionRule) each).findFirst();
         return transactionRule.orElseGet(() -> new TransactionRule(new DefaultTransactionRuleConfigurationBuilder().build()));
     }
+    
+    private void generateNarayanaConfig(final TransactionRule transactionRule) {
+        Map<Object, Object> result;
+        if (transactionRule.getDefaultType() == TransactionType.XA && transactionRule.getProviderType().equalsIgnoreCase("Narayana")) {
+            result = generateDefaultNarayanaConfig();
+            if (null != transactionRule.getProps()) {
+                swapJdbcStore(transactionRule, result);
+            }
+        } else {
+            return;
+        }
+        String value = narayanaConfigMapToXml((LinkedHashMap<Object, Object>) result);
+        String path = ClassLoader.getSystemResource("").getPath();
+        System.out.println(path);
+        try (BufferedWriter bufferedWriter = Files.newBufferedWriter(Paths.get(path, "jbossts-properties.xml"))) {
+            bufferedWriter.write(value);
+            bufferedWriter.flush();
+        } catch (final IOException ex) {
+            log.error("generate narayana config file failed.");
+        }
+    }

Review comment:
       Config of transaction is `org.apache.shardingsphere.transaction.rule.TransactionRule`, all types of transactions share the `props` field.
   ```
   public final class TransactionRule implements GlobalRule {
       
       private final TransactionType defaultType;
       
       private final String providerType;
       
       private final Properties props; 
       
       public TransactionRule(final TransactionRuleConfiguration ruleConfig) {
           defaultType = TransactionType.valueOf(ruleConfig.getDefaultType().toUpperCase());
           providerType = ruleConfig.getProviderType();
           props = ruleConfig.getProps();
       }
       
       @Override
       public String getType() {
           return TransactionRule.class.getSimpleName();
       }
   }
   ```
   `TransactionContextsBuilder` is the general entry for transaction engine initialization. In `TransactionContextsBuilder`, the transaction engine is initialized according to the configuration.




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