Use conf/wayang-defaults.properties to load directory and explain con…

conf/wayang-defaults.properties

@@ -0,0 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Configure statistics collection.
+wayang.core.log.enabled = true
+
+wayang.core.explain.enabled = false
+wayang.core.explain.directrory = ~/.wayang/

wayang-api/wayang-api-sql/src/main/java/org/apache/wayang/api/sql/context/SqlContext.java

@@ -39,6 +39,7 @@
 import org.apache.wayang.core.api.Configuration;
 import org.apache.wayang.core.plugin.Plugin;
 import org.apache.wayang.core.api.WayangContext;
+import org.apache.wayang.core.util.ReflectionUtils;
 import org.apache.wayang.core.plan.wayangplan.WayangPlan;
 import org.apache.wayang.java.Java;
 import org.apache.wayang.postgres.Postgres;
@@ -84,14 +85,14 @@ public SqlContext(final Configuration configuration, final List<Plugin> plugins)
         for (final Plugin plugin : plugins) {
             this.withPlugin(plugin);
         }
-        
+
         calciteSchema = SchemaUtils.getSchema(configuration);
     }
 
     /**
      * Entry point for executing SQL statements while providing arguments.
      * You need to provide at least a JDBC source.
-     * 
+     *
      * @param args args[0] = SQL statement path, args[1] = JDBC driver, args[2] =
      *             JDBC URL, args[3] = JDBC user,
      *                          args[4] = JDBC password, args[5] = outputPath,
@@ -138,6 +139,7 @@ public static void main(final String[] args) throws Exception {
                 jdbcDriver, jdbcUrl, jdbcUser, jdbcPassword);
 
         final Configuration configuration = new Configuration();
+        configuration.load(ReflectionUtils.loadResource("wayang-defaults.properties"));
 
         configuration.setProperty("wayang.calcite.model", calciteModel);
         configuration.setProperty(String.format("wayang.%s.jdbc.url", driverPlatform), jdbcUrl);

wayang-commons/wayang-core/src/main/java/org/apache/wayang/core/api/Job.java

@@ -306,13 +306,15 @@ protected void doExecute() {
             }
 
             if (this.configuration.getBooleanProperty("wayang.core.explain.enabled")) {
+                long unixTime = System.currentTimeMillis() / 1000L;
+
                 ExplainUtils.write(
                     ExplainUtils.parsePlan(this.wayangPlan, true),
-                    this.configuration.getStringProperty("wayang.core.explain.logical.file")
+                    this.configuration.getStringProperty("wayang.core.explain.directory") + "job-" + this.name + "-" + unixTime + "-logical.json"
                 );
                 ExplainUtils.write(
                     ExplainUtils.parsePlan(executionPlan, true),
-                    this.configuration.getStringProperty("wayang.core.explain.execution.file")
+                    this.configuration.getStringProperty("wayang.core.explain.directory") + "job-" + this.name + "-" + unixTime + "-execution.json"
                 );
             }
 

wayang-commons/wayang-core/src/main/java/org/apache/wayang/core/api/WayangContext.java

@@ -149,14 +149,15 @@ public void explain(WayangPlan wayangPlan, String... udfJars) {
     public void explain(WayangPlan wayangPlan, boolean toJson, String... udfJars) {
         Job job = this.createJob(null, null, wayangPlan, udfJars);
         ExecutionPlan executionPlan = job.buildInitialExecutionPlan();
+        long unixTime = System.currentTimeMillis() / 1000L;
 
         ExplainUtils.write(
             ExplainUtils.parsePlan(wayangPlan, true),
-            this.configuration.getStringProperty("wayang.core.explain.logical.file")
+            this.configuration.getStringProperty("wayang.core.explain.directory") + "job-" + job.getName() + "-" + unixTime + "-logical.json"
         );
         ExplainUtils.write(
             ExplainUtils.parsePlan(executionPlan, true),
-            this.configuration.getStringProperty("wayang.core.explain.execution.file")
+            this.configuration.getStringProperty("wayang.core.explain.directory") + "job-" + job.getName() + "-" + unixTime + "-execution.json"
         );
     }
 

wayang-commons/wayang-core/src/main/resources/wayang-core-defaults.properties

@@ -30,6 +30,7 @@ wayang.core.log.enabled = true
 # wayang.core.log.cardinalities = ~/.wayang/cardinalities.json
 # wayang.core.log.executions = ~/.wayang/executions.json
 wayang.core.explain.enabled = false
+wayang.core.explain.directrory = ~/.wayang/
 
 # Configure re-optimization.
 wayang.core.optimizer.reoptimize = false