use singleton

Author: todd5167

launcher/src/main/java/com/dtstack/flink/sql/launcher/executor/StandaloneExecutor.java

@@ -39,13 +39,10 @@
  * @author maqi
  */
 public class StandaloneExecutor {
-
-    StandaloneClientFactory standaloneClientFactory;
     JobParamsInfo jobParamsInfo;
 
     public StandaloneExecutor(JobParamsInfo jobParamsInfo) {
         this.jobParamsInfo = jobParamsInfo;
-        standaloneClientFactory = new StandaloneClientFactory();
     }
 
     public void exec() throws Exception {
@@ -62,7 +59,7 @@ public void exec() throws Exception {
 
         JobGraphBuildUtil.fillJobGraphClassPath(jobGraph);
 
-        ClusterDescriptor clusterDescriptor = standaloneClientFactory.createClusterDescriptor("", flinkConfiguration);
+        ClusterDescriptor clusterDescriptor = StandaloneClientFactory.INSTANCE.createClusterDescriptor("", flinkConfiguration);
         ClusterClientProvider clusterClientProvider = clusterDescriptor.retrieve(StandaloneClusterId.getInstance());
         ClusterClient clusterClient = clusterClientProvider.getClusterClient();
 

launcher/src/main/java/com/dtstack/flink/sql/launcher/executor/YarnJobClusterExecutor.java

@@ -23,7 +23,6 @@
 import com.dtstack.flink.sql.launcher.factory.YarnClusterClientFactory;
 import com.dtstack.flink.sql.launcher.utils.JobGraphBuildUtil;
 import org.apache.commons.lang3.StringUtils;
-import org.apache.flink.api.common.cache.DistributedCache;
 import org.apache.flink.client.deployment.ClusterSpecification;
 import org.apache.flink.client.program.ClusterClientProvider;
 import org.apache.flink.configuration.Configuration;
@@ -39,10 +38,8 @@
 
 import java.io.File;
 import java.net.MalformedURLException;
-import java.net.URL;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Map;
 import java.util.Optional;
 
 
@@ -58,12 +55,10 @@ public class YarnJobClusterExecutor {
     private static final String CONFIG_FILE_LOG4J_NAME = "log4j.properties";
     private static final String DEFAULT_TOTAL_PROCESS_MEMORY = "1024m";
 
-    YarnClusterClientFactory yarnClusterClientFactory;
     JobParamsInfo jobParamsInfo;
 
     public YarnJobClusterExecutor(JobParamsInfo jobParamsInfo) {
         this.jobParamsInfo = jobParamsInfo;
-        yarnClusterClientFactory = new YarnClusterClientFactory();
     }
 
     public void exec() throws Exception {
@@ -75,12 +70,13 @@ public void exec() throws Exception {
         Configuration flinkConfiguration = JobGraphBuildUtil.getFlinkConfiguration(jobParamsInfo.getFlinkConfDir(), jobParamsInfo.getConfProperties());
         appendApplicationConfig(flinkConfiguration, jobParamsInfo);
 
-        YarnClusterDescriptor clusterDescriptor = (YarnClusterDescriptor) yarnClusterClientFactory.createClusterDescriptor(jobParamsInfo.getYarnConfDir(), flinkConfiguration);
+        YarnClusterDescriptor clusterDescriptor = (YarnClusterDescriptor) YarnClusterClientFactory.INSTANCE
+                .createClusterDescriptor(jobParamsInfo.getYarnConfDir(), flinkConfiguration);
 
         List<File> shipFiles = getShipFiles(jobParamsInfo.getFlinkJarPath(), jobParamsInfo.getPluginLoadMode(), jobGraph, clusterDescriptor);
         clusterDescriptor.addShipFiles(shipFiles);
 
-        ClusterSpecification clusterSpecification = yarnClusterClientFactory.getClusterSpecification(flinkConfiguration);
+        ClusterSpecification clusterSpecification = YarnClusterClientFactory.INSTANCE.getClusterSpecification(flinkConfiguration);
         ClusterClientProvider<ApplicationId> applicationIdClusterClientProvider = clusterDescriptor.deployJobCluster(clusterSpecification, jobGraph, true);
 
         String applicationId = applicationIdClusterClientProvider.getClusterClient().getClusterId().toString();

launcher/src/main/java/com/dtstack/flink/sql/launcher/executor/YarnSessionClusterExecutor.java

@@ -34,26 +34,23 @@
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.util.ConverterUtils;
 
-import java.io.UnsupportedEncodingException;
 
 /**
  * Date: 2020/3/4
  * Company: www.dtstack.com
  * @author maqi
  */
 public class YarnSessionClusterExecutor {
-    YarnClusterClientFactory yarnClusterClientFactory;
     JobParamsInfo jobParamsInfo;
 
     public YarnSessionClusterExecutor(JobParamsInfo jobParamsInfo) {
         this.jobParamsInfo = jobParamsInfo;
-        yarnClusterClientFactory = new YarnClusterClientFactory();
     }
 
     public void exec() throws Exception {
         JobGraph jobGraph = JobGraphBuildUtil.buildJobGraph(jobParamsInfo);
         Configuration flinkConfiguration = JobGraphBuildUtil.getFlinkConfiguration(jobParamsInfo.getFlinkConfDir(), jobParamsInfo.getConfProperties());
-        ClusterDescriptor clusterDescriptor = yarnClusterClientFactory.createClusterDescriptor(jobParamsInfo.getYarnConfDir(), flinkConfiguration);
+        ClusterDescriptor clusterDescriptor = YarnClusterClientFactory.INSTANCE.createClusterDescriptor(jobParamsInfo.getYarnConfDir(), flinkConfiguration);
 
         Object yid = jobParamsInfo.getYarnSessionConfProperties().get("yid");
         if (null == yid) {

launcher/src/main/java/com/dtstack/flink/sql/launcher/factory/AbstractClusterClientFactory.java

@@ -33,9 +33,9 @@
  * Company: www.dtstack.com
  * @author maqi
  */
-public abstract class AbstractClusterClientFactory {
+public interface AbstractClusterClientFactory {
 
-    public ClusterSpecification getClusterSpecification(Configuration configuration) {
+    default ClusterSpecification getClusterSpecification(Configuration configuration) {
         checkNotNull(configuration);
 
         final int jobManagerMemoryMb = ConfigurationUtils

launcher/src/main/java/com/dtstack/flink/sql/launcher/factory/StandaloneClientFactory.java

@@ -29,7 +29,9 @@
  * Company: www.dtstack.com
  * @author maqi
  */
-public class StandaloneClientFactory extends AbstractClusterClientFactory {
+public enum StandaloneClientFactory implements AbstractClusterClientFactory {
+    INSTANCE;
+
     @Override
     public ClusterDescriptor createClusterDescriptor(String clusterConfPath, Configuration flinkConfig) {
         checkNotNull(flinkConfig);

launcher/src/main/java/com/dtstack/flink/sql/launcher/factory/YarnClusterClientFactory.java

@@ -41,8 +41,11 @@
  * Company: www.dtstack.com
  * @author maqi
  */
-public class YarnClusterClientFactory extends AbstractClusterClientFactory {
+public enum YarnClusterClientFactory implements AbstractClusterClientFactory {
+    INSTANCE;
+
     private static final String XML_FILE_EXTENSION = "xml";
+
     @Override
     public ClusterDescriptor createClusterDescriptor(String yarnConfDir, Configuration flinkConfig) {