Improvement of solution: README.md cleaned, build plugin fixed, some code cleaning

tools/pom.xml

@@ -70,7 +70,7 @@
             <plugins>
                 <plugin>
                     <artifactId>maven-assembly-plugin</artifactId>
-                    <configuration>
+                    <configuration combine.self="override">
                         <archive>
                             <manifest>
                                 <mainClass>org.thingsboard.client.tools.migrator.MigratorTool</mainClass>

tools/src/main/java/org/thingsboard/client/tools/migrator/PgCaMigrator.java

@@ -43,7 +43,6 @@ public class PgCaMigrator {
     private final long LOG_BATCH = 1000000;
     private final long rowPerFile = 1000000;
 
-    private long linesProcessed = 0;
     private long linesTsMigrated = 0;
     private long linesLatestMigrated = 0;
     private long castErrors = 0;
@@ -99,7 +98,7 @@ public class PgCaMigrator {
                     System.out.println("START TO MIGRATE LATEST");
                     long start = System.currentTimeMillis();
                     processBlock(iterator, currentTsLatestWriter, outTsLatestDir, this::toValuesLatest);
-                    System.out.println("FORMING OF SSL FOR LATEST TS FINISHED WITH TIME: " + (System.currentTimeMillis() - start) + " ms.");
+                    System.out.println("TOTAL LINES MIGRATED: " + linesLatestMigrated + ", FORMING OF SSL FOR LATEST TS FINISHED WITH TIME: " + (System.currentTimeMillis() - start) + " ms.");
                     isLatestDone = true;
                 }
 
@@ -107,7 +106,7 @@ public class PgCaMigrator {
                     System.out.println("START TO MIGRATE TS");
                     long start = System.currentTimeMillis();
                     processBlock(iterator, currentTsWriter, outTsDir, this::toValuesTs);
-                    System.out.println("FORMING OF SSL FOR TS FINISHED WITH TIME: " + (System.currentTimeMillis() - start) + " ms.");
+                    System.out.println("TOTAL LINES MIGRATED: " + linesTsMigrated + ", FORMING OF SSL FOR TS FINISHED WITH TIME: " + (System.currentTimeMillis() - start) + " ms.");
                     isTsDone = true;
                 }
             }
@@ -212,7 +211,7 @@ public class PgCaMigrator {
 
     private void processBlock(LineIterator iterator, CQLSSTableWriter writer, File outDir, Function<List<String>, List<Object>> function) {
         String currentLine;
-        linesProcessed = 0;
+        long linesProcessed = 0;
         while(iterator.hasNext()) {
             logLinesProcessed(linesProcessed++);
             currentLine = iterator.nextLine();

tools/src/main/java/org/thingsboard/client/tools/migrator/README.md

@@ -23,7 +23,7 @@ It will generate single jar file with all required dependencies inside `target d
 
 1. Dump related tables that need to correct save telemetry
    
-   `pg_dump -h localhost -U postgres -d thingsboard -t tenant -t customer -t user -t dashboard -t asset -t device -t alarm -t rule_chain -t rule_node -t entity_view -t widgets_bundle -t widget_type -t tenant_profile -t device_profile -t api_usage_state -t tb_user > related_entities.dmp`
+   `pg_dump -h localhost -U postgres -d thingsboard -T admin_settings -T attribute_kv -T audit_log -T component_discriptor -T device_credentials -T event -T oauth2_client_registration -T oauth2_client_registration_info -T oauth2_client_registration_template -T relation -T rule_node_state tb_schema_settings -T user_credentials > related_entities.dmp`
    
 2. Dump `ts_kv` and child:
    
@@ -47,12 +47,12 @@ Create 3 empty directories. For example:
 **Note: if you run this tool on remote instance - don't forget to execute this command in `screen` to avoid unexpected termination*
 
 ```
-java -jar ./tools-2.4.1-SNAPSHOT-jar-with-dependencies.jar 
+java -jar ./tools-3.2.2-SNAPSHOT-jar-with-dependencies.jar 
         -telemetryFrom /home/user/dump/ts_kv_all.dmp 
-        -relatedEntities /home/user/dump/relatedEntities.dmp 
-        -latestOut /home/ubunut/migration/ts_latest 
-        -tsOut /home/ubunut/migration/ts 
-        -partitionsOut /home/ubunut/migration/ts_partition 
+        -relatedEntities /home/user/dump/related_entities.dmp 
+        -latestOut /home/user/migration/ts_latest 
+        -tsOut /home/user/migration/ts 
+        -partitionsOut /home/user/migration/ts_partition 
         -castEnable false 
 ```  
 *Use your paths for program arguments*
@@ -63,7 +63,7 @@ Tool execution time depends on DB size, CPU resources and Disk throughput
 * Note that this this part works only for single node Cassandra Cluster. If you have more nodes - it is better to use `sstableloader` tool.
 
 1. [Optional] install Cassandra on the instance
-2. [Optional] Using `cqlsh` create `thingsboard` keyspace and requred tables from this file `schema-ts.cql`
+2. [Optional] Using `cqlsh` create `thingsboard` keyspace and requred tables from this files `schema-ts.cql` and `schema-ts-latest.cql` using `source` command
 3. Stop Cassandra
 4. Look at `/var/lib/cassandra/data/thingsboard` and check for names of data folders
 5. Copy generated SSTable files into cassandra data dir using next command:

tools/src/main/java/org/thingsboard/client/tools/migrator/RelatedEntitiesParser.java

@@ -27,6 +27,24 @@ import java.util.Map;
 
 public class RelatedEntitiesParser {
     private final Map<String, String> allEntityIdsAndTypes = new HashMap<>();
+    
+    private final Map<String, EntityType> tableNameAndEntityType = Map.ofEntries(
+            Map.entry("COPY public.alarm ", EntityType.ALARM),
+            Map.entry("COPY public.asset ", EntityType.ASSET),
+            Map.entry("COPY public.customer ", EntityType.CUSTOMER),
+            Map.entry("COPY public.dashboard ", EntityType.DASHBOARD),
+            Map.entry("COPY public.device ", EntityType.DEVICE),
+            Map.entry("COPY public.rule_chain ", EntityType.RULE_CHAIN),
+            Map.entry("COPY public.rule_node ", EntityType.RULE_NODE),
+            Map.entry("COPY public.tenant ", EntityType.TENANT),
+            Map.entry("COPY public.tb_user ", EntityType.USER),
+            Map.entry("COPY public.entity_view ", EntityType.ENTITY_VIEW),
+            Map.entry("COPY public.widgets_bundle ", EntityType.WIDGETS_BUNDLE),
+            Map.entry("COPY public.widget_type ", EntityType.WIDGET_TYPE),
+            Map.entry("COPY public.tenant_profile ", EntityType.TENANT_PROFILE),
+            Map.entry("COPY public.device_profile ", EntityType.DEVICE_PROFILE),
+            Map.entry("COPY public.api_usage_state ", EntityType.API_USAGE_STATE)
+    );
 
     public RelatedEntitiesParser(File source) throws IOException {
         processAllTables(FileUtils.lineIterator(source));
@@ -45,36 +63,10 @@ public class RelatedEntitiesParser {
         try {
             while (lineIterator.hasNext()) {
                 currentLine = lineIterator.nextLine();
-                if (currentLine.startsWith("COPY public.alarm")) {
-                    processBlock(lineIterator, EntityType.ALARM);
-                } else if (currentLine.startsWith("COPY public.asset")) {
-                    processBlock(lineIterator, EntityType.ASSET);
-                } else if (currentLine.startsWith("COPY public.customer")) {
-                    processBlock(lineIterator, EntityType.CUSTOMER);
-                } else if (currentLine.startsWith("COPY public.dashboard")) {
-                    processBlock(lineIterator, EntityType.DASHBOARD);
-                } else if (currentLine.startsWith("COPY public.device")) {
-                    processBlock(lineIterator, EntityType.DEVICE);
-                } else if (currentLine.startsWith("COPY public.rule_chain")) {
-                    processBlock(lineIterator, EntityType.RULE_CHAIN);
-                } else if (currentLine.startsWith("COPY public.rule_node")) {
-                    processBlock(lineIterator, EntityType.RULE_NODE);
-                } else if (currentLine.startsWith("COPY public.tenant")) {
-                    processBlock(lineIterator, EntityType.TENANT);
-                } else if (currentLine.startsWith("COPY public.tb_user")) {
-                    processBlock(lineIterator, EntityType.USER);
-                } else if (currentLine.startsWith("COPY public.entity_view")) {
-                    processBlock(lineIterator, EntityType.ENTITY_VIEW);
-                } else if (currentLine.startsWith("COPY public.widgets_bundle")) {
-                    processBlock(lineIterator, EntityType.WIDGETS_BUNDLE);
-                } else if (currentLine.startsWith("COPY public.widget_type")) {
-                    processBlock(lineIterator, EntityType.WIDGET_TYPE);
-                } else if (currentLine.startsWith("COPY public.tenant_profile")) {
-                    processBlock(lineIterator, EntityType.TENANT_PROFILE);
-                } else if (currentLine.startsWith("COPY public.device_profile")) {
-                    processBlock(lineIterator, EntityType.DEVICE_PROFILE);
-                } else if (currentLine.startsWith("COPY public.api_usage_state")) {
-                    processBlock(lineIterator, EntityType.API_USAGE_STATE);
+                for(Map.Entry<String, EntityType> entry : tableNameAndEntityType.entrySet()) {
+                    if(currentLine.startsWith(entry.getKey())) {
+                        processBlock(lineIterator, entry.getValue());
+                    }
                 }
             }
         } finally {