Fix getJobStatus to correctly serialize the state changes (#388)

* Correctly serialize and deserialize the statusChanges field

* Use escaped JSON instead when returning from getJobStatus

Author: burmanm

management-api-agent-common/src/main/java/com/datastax/mgmtapi/NodeOpsProvider.java

@@ -20,9 +20,12 @@
 import com.datastax.oss.driver.api.querybuilder.schema.CreateTableWithOptions;
 import com.datastax.oss.driver.api.querybuilder.schema.OngoingPartitionKey;
 import com.datastax.oss.driver.internal.core.metadata.schema.parsing.DataTypeCqlNameParser;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.common.base.Preconditions;
 import com.google.common.base.Supplier;
 import com.google.common.base.Suppliers;
+import com.google.common.collect.Maps;
 import java.io.IOException;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
@@ -94,6 +97,23 @@ public Map<String, String> getJobStatus(@RpcParam(name = "job_id") String jobId)
       resultMap.put("error", jobWithId.getError().getLocalizedMessage());
     }
 
+    List<Map<String, String>> statusChanges = new ArrayList<>();
+    for (Job.StatusChange statusChange : jobWithId.getStatusChanges()) {
+      Map<String, String> change = Maps.newHashMap();
+      change.put("status", statusChange.getStatus().name());
+      change.put("change_time", Long.valueOf(statusChange.getChangeTime()).toString());
+      change.put("message", statusChange.getMessage());
+      statusChanges.add(change);
+    }
+
+    ObjectMapper objectMapper = new ObjectMapper();
+    try {
+      String s = objectMapper.writeValueAsString(statusChanges);
+      resultMap.put("status_changes", s);
+    } catch (JsonProcessingException e) {
+      throw new RuntimeException(e);
+    }
+
     return resultMap;
   }
 

management-api-server/src/main/java/com/datastax/mgmtapi/resources/models/Job.java

@@ -7,7 +7,12 @@
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.io.IOException;
 import java.io.Serializable;
+import java.util.ArrayList;
 import java.util.List;
 
 public class Job implements Serializable {
@@ -35,7 +40,7 @@ public enum JobStatus {
   @JsonProperty(value = "error")
   private String error;
 
-  public class StatusChange {
+  public static class StatusChange {
     @JsonProperty(value = "status")
     String status;
 
@@ -45,8 +50,12 @@ public class StatusChange {
     @JsonProperty(value = "message")
     String message;
 
-    public StatusChange(String type, String message) {
-      changeTime = System.currentTimeMillis();
+    @JsonCreator
+    public StatusChange(
+        @JsonProperty(value = "status") String type,
+        @JsonProperty(value = "change_time") String time,
+        @JsonProperty(value = "message") String message) {
+      changeTime = Long.parseLong(time);
       status = type;
       this.message = message;
     }
@@ -75,14 +84,32 @@ public Job(
       @JsonProperty(value = "submit_time") long submitTime,
       @JsonProperty(value = "end_time") long finishedTime,
       @JsonProperty(value = "error") String error,
-      @JsonProperty(value = "status_changes") List<StatusChange> changes) {
+      @JsonProperty(value = "status_changes") String changes) {
     this.jobId = jobId;
     this.jobType = jobType;
     this.status = JobStatus.valueOf(status);
     this.submitTime = submitTime;
     this.finishedTime = finishedTime;
     this.error = error;
-    this.statusChanges = changes;
+    this.statusChanges = changes(changes);
+  }
+
+  public List<StatusChange> changes(String s) {
+    ObjectMapper objectMapper = new ObjectMapper();
+    if (s.length() < 2) {
+      return new ArrayList<>();
+    }
+    try {
+      JsonNode parent = objectMapper.readTree(s);
+
+      List<StatusChange> changes =
+          objectMapper.readValue(parent.traverse(), new TypeReference<List<StatusChange>>() {});
+
+      return changes;
+
+    } catch (IOException e) {
+      throw new RuntimeException(e);
+    }
   }
 
   public String getJobId() {

management-api-server/src/test/java/com/datastax/mgmtapi/K8OperatorResourcesTest.java

@@ -40,12 +40,14 @@
 import com.datastax.oss.driver.api.core.cql.ResultSet;
 import com.datastax.oss.driver.api.core.cql.Row;
 import com.datastax.oss.driver.api.core.metadata.schema.ClusteringOrder;
+import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.json.JsonMapper;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
 import java.io.IOException;
 import java.net.URISyntaxException;
 import java.util.ArrayList;
@@ -585,13 +587,28 @@ public void testJobStatus() throws Exception {
 
     when(mockResultSet.one()).thenReturn(mockRow);
 
-    Map<String, String> jobDetailsRow = new HashMap<>();
+    Map<String, Object> jobDetailsRow = new HashMap<>();
     jobDetailsRow.put("id", "0fe65b47-98c2-47d8-9c3c-5810c9988e10");
     jobDetailsRow.put("type", "CLEANUP");
     jobDetailsRow.put("status", "COMPLETED");
     jobDetailsRow.put("submit_time", String.valueOf(System.currentTimeMillis()));
     jobDetailsRow.put("end_time", String.valueOf(System.currentTimeMillis()));
 
+    List<Map<String, String>> statusChanges = new ArrayList<>();
+    Map<String, String> change = Maps.newHashMap();
+    change.put("status", "SUCCESS");
+    change.put("change_time", "1695183696663");
+    change.put("message", "No message");
+    statusChanges.add(change);
+
+    ObjectMapper objectMapper = new ObjectMapper();
+    try {
+      String s = objectMapper.writeValueAsString(statusChanges);
+      jobDetailsRow.put("status_changes", s);
+    } catch (JsonProcessingException e) {
+      throw new RuntimeException(e);
+    }
+
     when(mockRow.getObject(0)).thenReturn(jobDetailsRow);
 
     MockHttpResponse response =
@@ -609,6 +626,8 @@ public void testJobStatus() throws Exception {
     assertEquals("0fe65b47-98c2-47d8-9c3c-5810c9988e10", jobDetails.getJobId());
     assertEquals("COMPLETED", jobDetails.getStatus().toString());
     assertEquals("CLEANUP", jobDetails.getJobType());
+    assertEquals(1, jobDetails.getStatusChanges().size());
+    assertEquals("SUCCESS", jobDetails.getStatusChanges().get(0).getStatus());
   }
 
   @Test