support custom datax config

dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/task/datax/DataxParameters.java

@@ -27,6 +27,16 @@ import org.apache.dolphinscheduler.common.task.AbstractParameters;
  */
 public class DataxParameters extends AbstractParameters {
 
+    /**
+     * if custom json config，eg  0, 1
+     */
+    private Integer customConfig;
+
+    /**
+     * if customConfig eq 1 ,then json is usable
+     */
+    private String json;
+
     /**
      * data source type，eg  MYSQL, POSTGRES ...
      */
@@ -157,16 +167,32 @@ public class DataxParameters extends AbstractParameters {
         this.jobSpeedRecord = jobSpeedRecord;
     }
 
+    public Integer getCustomConfig() {
+        return customConfig;
+    }
+
+    public void setCustomConfig(Integer customConfig) {
+        this.customConfig = customConfig;
+    }
+
+    public String getJson() {
+        return json;
+    }
+
+    public void setJson(String json) {
+        this.json = json;
+    }
+
     @Override
     public boolean checkParameters() {
-        if (!(dataSource != 0
-                && dataTarget != 0
-                && StringUtils.isNotEmpty(sql)
-                && StringUtils.isNotEmpty(targetTable))) {
-            return false;
+        if (customConfig == 0) {
+            return dataSource != 0
+                    && dataTarget != 0
+                    && StringUtils.isNotEmpty(sql)
+                    && StringUtils.isNotEmpty(targetTable);
+        } else {
+            return StringUtils.isNotEmpty(json);
         }
-
-        return true;
     }
 
     @Override

dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/worker/task/datax/DataxTask.java

@@ -192,24 +192,47 @@ public class DataxTask extends AbstractTask {
         throws Exception {
         // generate json
         String fileName = String.format("%s/%s_job.json", taskDir, taskProps.getTaskAppId());
+        String json;
 
         Path path = new File(fileName).toPath();
         if (Files.exists(path)) {
             return fileName;
         }
 
-        JSONObject job = new JSONObject();
-        job.put("content", buildDataxJobContentJson());
-        job.put("setting", buildDataxJobSettingJson());
 
-        JSONObject root = new JSONObject();
-        root.put("job", job);
-        root.put("core", buildDataxCoreJson());
 
-        logger.debug("datax job json : {}", root.toString());
+        if (dataXParameters.getCustomConfig() == 1){
+
+            json = dataXParameters.getJson().replaceAll("\\r\\n", "\n");
+
+            /**
+             *  combining local and global parameters
+             */
+            Map<String, Property> paramsMap = ParamUtils.convert(taskProps.getUserDefParamsMap(),
+                    taskProps.getDefinedParams(),
+                    dataXParameters.getLocalParametersMap(),
+                    taskProps.getCmdTypeIfComplement(),
+                    taskProps.getScheduleTime());
+            if (paramsMap != null){
+                json = ParameterUtils.convertParameterPlaceholders(json, ParamUtils.convert(paramsMap));
+            }
+
+        }else {
+
+            JSONObject job = new JSONObject();
+            job.put("content", buildDataxJobContentJson());
+            job.put("setting", buildDataxJobSettingJson());
+
+            JSONObject root = new JSONObject();
+            root.put("job", job);
+            root.put("core", buildDataxCoreJson());
+            json = root.toString();
+        }
+
+        logger.debug("datax job json : {}", json);
 
         // create datax json file
-        FileUtils.writeStringToFile(new File(fileName), root.toString(), StandardCharsets.UTF_8);
+        FileUtils.writeStringToFile(new File(fileName), json, StandardCharsets.UTF_8);
         return fileName;
     }
 

dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/worker/task/datax/DataxTaskTest.java

@@ -44,6 +44,8 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.context.ApplicationContext;
 
+import static org.apache.dolphinscheduler.common.enums.CommandType.START_PROCESS;
+
 /**
  * DataxTask Tester.
  */
@@ -59,6 +61,8 @@ public class DataxTaskTest {
 
     private ApplicationContext applicationContext;
 
+    private TaskProps props = new TaskProps();
+
     @Before
     public void before()
         throws Exception {
@@ -70,7 +74,6 @@ public class DataxTaskTest {
         springApplicationContext.setApplicationContext(applicationContext);
         Mockito.when(applicationContext.getBean(ProcessService.class)).thenReturn(processService);
 
-        TaskProps props = new TaskProps();
         props.setTaskDir("/tmp");
         props.setTaskAppId(String.valueOf(System.currentTimeMillis()));
         props.setTaskInstId(1);
@@ -78,10 +81,8 @@ public class DataxTaskTest {
         props.setEnvFile(".dolphinscheduler_env.sh");
         props.setTaskStartTime(new Date());
         props.setTaskTimeout(0);
-        props.setTaskParams(
-            "{\"targetTable\":\"test\",\"postStatements\":[],\"jobSpeedByte\":1024,\"jobSpeedRecord\":1000,\"dtType\":\"MYSQL\",\"datasource\":1,\"dsType\":\"MYSQL\",\"datatarget\":2,\"jobSpeedByte\":0,\"sql\":\"select 1 as test from dual\",\"preStatements\":[\"delete from test\"],\"postStatements\":[\"delete from test\"]}");
-        dataxTask = PowerMockito.spy(new DataxTask(props, logger));
-        dataxTask.init();
+        props.setCmdTypeIfComplement(START_PROCESS);
+        setTaskParems(0);
 
         Mockito.when(processService.findDataSourceById(1)).thenReturn(getDataSource());
         Mockito.when(processService.findDataSourceById(2)).thenReturn(getDataSource());
@@ -91,6 +92,22 @@ public class DataxTaskTest {
         Mockito.when(shellCommandExecutor.run(fileName, processService)).thenReturn(0);
     }
 
+    private void setTaskParems(Integer customConfig) {
+        if (customConfig == 1) {
+            props.setTaskParams(
+                    "{\"customConfig\":1, \"localParams\":[{\"prop\":\"test\",\"direct\":\"IN\",\"type\":\"VARCHAR\",\"value\":\"38294729\"}],\"json\":\"{\\\"job\\\":{\\\"setting\\\":{\\\"speed\\\":{\\\"byte\\\":1048576},\\\"errorLimit\\\":{\\\"record\\\":0,\\\"percentage\\\":0.02}},\\\"content\\\":[{\\\"reader\\\":{\\\"name\\\":\\\"rdbmsreader\\\",\\\"parameter\\\":{\\\"username\\\":\\\"xxx\\\",\\\"password\\\":\\\"${test}\\\",\\\"column\\\":[\\\"id\\\",\\\"name\\\"],\\\"splitPk\\\":\\\"pk\\\",\\\"connection\\\":[{\\\"querySql\\\":[\\\"SELECT * from dual\\\"],\\\"jdbcUrl\\\":[\\\"jdbc:dm://ip:port/database\\\"]}],\\\"fetchSize\\\":1024,\\\"where\\\":\\\"1 = 1\\\"}},\\\"writer\\\":{\\\"name\\\":\\\"streamwriter\\\",\\\"parameter\\\":{\\\"print\\\":true}}}]}}\"}");
+
+//                    "{\"customConfig\":1,\"json\":\"{\\\"job\\\":{\\\"setting\\\":{\\\"speed\\\":{\\\"byte\\\":1048576},\\\"errorLimit\\\":{\\\"record\\\":0,\\\"percentage\\\":0.02}},\\\"content\\\":[{\\\"reader\\\":{\\\"name\\\":\\\"rdbmsreader\\\",\\\"parameter\\\":{\\\"username\\\":\\\"xxx\\\",\\\"password\\\":\\\"xxx\\\",\\\"column\\\":[\\\"id\\\",\\\"name\\\"],\\\"splitPk\\\":\\\"pk\\\",\\\"connection\\\":[{\\\"querySql\\\":[\\\"SELECT * from dual\\\"],\\\"jdbcUrl\\\":[\\\"jdbc:dm://ip:port/database\\\"]}],\\\"fetchSize\\\":1024,\\\"where\\\":\\\"1 = 1\\\"}},\\\"writer\\\":{\\\"name\\\":\\\"streamwriter\\\",\\\"parameter\\\":{\\\"print\\\":true}}}]}}\"}");
+        } else {
+            props.setTaskParams(
+                    "{\"customConfig\":0,\"targetTable\":\"test\",\"postStatements\":[],\"jobSpeedByte\":1024,\"jobSpeedRecord\":1000,\"dtType\":\"MYSQL\",\"datasource\":1,\"dsType\":\"MYSQL\",\"datatarget\":2,\"jobSpeedByte\":0,\"sql\":\"select 1 as test from dual\",\"preStatements\":[\"delete from test\"],\"postStatements\":[\"delete from test\"]}");
+
+        }
+
+        dataxTask = PowerMockito.spy(new DataxTask(props, logger));
+        dataxTask.init();
+    }
+
     private DataSource getDataSource() {
         DataSource dataSource = new DataSource();
         dataSource.setType(DbType.MYSQL);
@@ -102,7 +119,7 @@ public class DataxTaskTest {
 
     private ProcessInstance getProcessInstance() {
         ProcessInstance processInstance = new ProcessInstance();
-        processInstance.setCommandType(CommandType.START_PROCESS);
+        processInstance.setCommandType(START_PROCESS);
         processInstance.setScheduleTime(new Date());
         return processInstance;
     }
@@ -229,18 +246,24 @@ public class DataxTaskTest {
      */
     @Test
     public void testBuildDataxJsonFile()
-        throws Exception {
+            throws Exception {
         try {
-            Method method = DataxTask.class.getDeclaredMethod("buildDataxJsonFile");
-            method.setAccessible(true);
-            String filePath = (String) method.invoke(dataxTask, null);
-            Assert.assertNotNull(filePath);
-        }
-        catch (Exception e) {
+            setTaskParems(1);
+            buildDataJson();
+            setTaskParems(0);
+            buildDataJson();
+        } catch (Exception e) {
             Assert.fail(e.getMessage());
         }
     }
 
+    public void buildDataJson() throws Exception {
+        Method method = DataxTask.class.getDeclaredMethod("buildDataxJsonFile");
+        method.setAccessible(true);
+        String filePath = (String) method.invoke(dataxTask, null);
+        Assert.assertNotNull(filePath);
+    }
+
     /**
      * Method: buildDataxJobContentJson()
      */