Refactored edge rule chains storage

@@ -77,6 +77,9 @@ public class TenantController extends BaseController {
             tenant = checkNotNull(tenantService.saveTenant(tenant));
             if (newTenant) {
                 installScripts.createDefaultRuleChains(tenant.getId());
+                if (edgesEnabled) {
+                    installScripts.createDefaultEdgeRuleChains(tenant.getId());
+                }
             }
             return tenant;
         } catch (Exception e) {

@@ -28,7 +28,6 @@ import org.thingsboard.server.common.data.id.RuleChainId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.rule.RuleChain;
 import org.thingsboard.server.common.data.rule.RuleChainMetaData;
-import org.thingsboard.server.common.data.rule.RuleChainType;
 import org.thingsboard.server.common.data.widget.WidgetType;
 import org.thingsboard.server.common.data.widget.WidgetsBundle;
 import org.thingsboard.server.dao.dashboard.DashboardService;
@@ -36,7 +35,6 @@ import org.thingsboard.server.dao.rule.RuleChainService;
 import org.thingsboard.server.dao.widget.WidgetTypeService;
 import org.thingsboard.server.dao.widget.WidgetsBundleService;
 
-import java.io.File;
 import java.io.IOException;
 import java.nio.file.DirectoryStream;
 import java.nio.file.Files;
@@ -64,6 +62,8 @@ public class InstallScripts {
     public static final String WIDGET_BUNDLES_DIR = "widget_bundles";
     public static final String DASHBOARDS_DIR = "dashboards";
 
+    public static final String EDGE_MANAGEMENT = "edge_management";
+
     public static final String JSON_EXT = ".json";
 
     @Value("${install.data_dir:}")
@@ -81,10 +81,14 @@ public class InstallScripts {
     @Autowired
     private WidgetsBundleService widgetsBundleService;
 
-    public Path getTenantRuleChainsDir() {
+    private Path getTenantRuleChainsDir() {
         return Paths.get(getDataDir(), JSON_DIR, TENANT_DIR, RULE_CHAINS_DIR);
     }
 
+    private Path getEdgeRuleChainsDir() {
+        return Paths.get(getDataDir(), JSON_DIR, TENANT_DIR, EDGE_MANAGEMENT, RULE_CHAINS_DIR);
+    }
+
     public String getDataDir() {
         if (!StringUtils.isEmpty(dataDir)) {
             if (!Paths.get(this.dataDir).toFile().isDirectory()) {
@@ -108,18 +112,22 @@ public class InstallScripts {
 
     public void createDefaultRuleChains(TenantId tenantId) throws IOException {
         Path tenantChainsDir = getTenantRuleChainsDir();
-        try (DirectoryStream<Path> dirStream = Files.newDirectoryStream(tenantChainsDir, path -> path.toString().endsWith(InstallScripts.JSON_EXT))) {
+        loadRuleChainsFromPath(tenantId, tenantChainsDir);
+    }
+
+    public void createDefaultEdgeRuleChains(TenantId tenantId) throws IOException {
+        Path edgeChainsDir = getEdgeRuleChainsDir();
+        loadRuleChainsFromPath(tenantId, edgeChainsDir);
+    }
+
+    private void loadRuleChainsFromPath(TenantId tenantId, Path ruleChainsPath) throws IOException {
+        try (DirectoryStream<Path> dirStream = Files.newDirectoryStream(ruleChainsPath, path -> path.toString().endsWith(InstallScripts.JSON_EXT))) {
             dirStream.forEach(
                     path -> loadRuleChainFromFile(tenantId, path)
             );
         }
     }
 
-    public void createDefaultEdgeRuleChains(TenantId tenantId) {
-        Path tenantChainsDir = getTenantRuleChainsDir();
-        loadRuleChainFromFile(tenantId, tenantChainsDir.resolve("edge_root_rule_chain.json"));
-    }
-
     public void loadSystemWidgets() throws Exception {
         Path widgetBundlesDir = Paths.get(getDataDir(), JSON_DIR, SYSTEM_DIR, WIDGET_BUNDLES_DIR);
         try (DirectoryStream<Path> dirStream = Files.newDirectoryStream(widgetBundlesDir, path -> path.toString().endsWith(JSON_EXT))) {
@@ -174,7 +182,6 @@ public class InstallScripts {
         }
     }
 
-
     public void loadDemoRuleChains(TenantId tenantId) throws Exception {
         Path ruleChainsDir = Paths.get(getDataDir(), JSON_DIR, DEMO_DIR, RULE_CHAINS_DIR);
         try {
@@ -196,8 +203,17 @@ public class InstallScripts {
             rootChain = ruleChainService.saveRuleChain(rootChain);
             rootChainMetaData.setRuleChainId(rootChain.getId());
             ruleChainService.saveRuleChainMetaData(new TenantId(EntityId.NULL_UUID), rootChainMetaData);
+        } catch (Exception e) {
+            log.error("Unable to load dashboard from json", e);
+            throw new RuntimeException("Unable to load dashboard from json", e);
+        }
+        loadEdgeDemoRuleChains(tenantId);
+    }
 
-            loadRuleChainFromFile(tenantId, ruleChainsDir.resolve("edge_root_rule_chain.json"));
+    private void loadEdgeDemoRuleChains(TenantId tenantId) throws Exception {
+        Path edgeRuleChainsDir = Paths.get(getDataDir(), JSON_DIR, DEMO_DIR, EDGE_MANAGEMENT, RULE_CHAINS_DIR);
+        try {
+            loadRuleChainFromFile(tenantId, edgeRuleChainsDir.resolve("edge_root_rule_chain.json"));
         } catch (Exception e) {
             log.error("Unable to load dashboard from json", e);
             throw new RuntimeException("Unable to load dashboard from json", e);

@@ -203,7 +203,7 @@ public class PsqlTsDatabaseUpgradeService extends AbstractSqlTsDatabaseUpgradeSe
                 break;
             case "2.5.5":
                 try (Connection conn = DriverManager.getConnection(dbUrl, dbUserName, dbPassword)) {
-                    log.info("Load TTL functions ...");
+                    log.info("Load Edge TTL functions ...");
                     loadSql(conn, "2.6.0", LOAD_TTL_FUNCTIONS_SQL);
                 }
                 break;

@@ -91,7 +91,7 @@ public class BaseRuleChainService extends AbstractEntityService implements RuleC
                         EntityRelation.CONTAINS_TYPE, RelationTypeGroup.RULE_CHAIN));
             } catch (Exception e) {
                 log.warn("[{}] Failed to create tenant to root rule chain relation. from: [{}], to: [{}]",
-                        savedRuleChain.getTenantId(), savedRuleChain.getId());
+                        savedRuleChain.getTenantId(), savedRuleChain.getTenantId(), savedRuleChain.getId(), e);
                 throw new RuntimeException(e);
             }
         }