Fixed api response codes and audit filter logging

repository/src/main/java/org/apache/hadoop/metadata/repository/graph/GraphBackedMetadataRepository.java

@@ -257,6 +257,8 @@ public class GraphBackedMetadataRepository implements MetadataRepository {
             ((TitanVertex) instanceVertex)
                     .addProperty(Constants.TRAIT_NAMES_PROPERTY_KEY, traitName);
 
+        } catch (RepositoryException e) {
+          throw e;
         } catch (Exception e) {
             throw new RepositoryException(e);
         }
@@ -279,7 +281,7 @@ public class GraphBackedMetadataRepository implements MetadataRepository {
 
             List<String> traitNames = getTraitNames(instanceVertex);
             if (!traitNames.contains(traitNameToBeDeleted)) {
-                throw new RepositoryException("Could not find trait=" + traitNameToBeDeleted
+                throw new EntityNotFoundException("Could not find trait=" + traitNameToBeDeleted
                         + " in the repository for entity: " + guid);
             }
 
@@ -302,6 +304,8 @@ public class GraphBackedMetadataRepository implements MetadataRepository {
                     updateTraits(instanceVertex, traitNames);
                 }
             }
+        } catch (RepositoryException e) {
+            throw e;
         } catch (Exception e) {
             throw new RepositoryException(e);
         }
@@ -350,6 +354,8 @@ public class GraphBackedMetadataRepository implements MetadataRepository {
             instanceToGraphMapper.mapAttributesToVertex(getIdFromVertex(typeName, instanceVertex),
                     instance, instanceVertex, new HashMap<Id, Vertex>(),
                     attributeInfo, attributeInfo.dataType());
+        } catch (RepositoryException e) {
+            throw e;
         } catch (Exception e) {
             throw new RepositoryException(e);
         }

repository/src/main/java/org/apache/hadoop/metadata/services/DefaultMetadataService.java

@@ -21,9 +21,11 @@ package org.apache.hadoop.metadata.services;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableList;
 import com.google.inject.Provider;
+import com.sun.jersey.api.NotFoundException;
 import org.apache.hadoop.metadata.MetadataException;
 import org.apache.hadoop.metadata.MetadataServiceClient;
 import org.apache.hadoop.metadata.ParamChecker;
+import org.apache.hadoop.metadata.TypeNotFoundException;
 import org.apache.hadoop.metadata.classification.InterfaceAudience;
 import org.apache.hadoop.metadata.discovery.SearchIndexer;
 import org.apache.hadoop.metadata.listener.EntityChangeListener;
@@ -293,7 +295,7 @@ public class DefaultMetadataService implements MetadataService {
 
         // verify if the type exists
         if (!typeSystem.isRegistered(entityType)) {
-            throw new MetadataException("type is not defined for : " + entityType);
+            throw new TypeNotFoundException("type is not defined for : " + entityType);
         }
     }
 
@@ -327,8 +329,12 @@ public class DefaultMetadataService implements MetadataService {
         final String traitName = traitInstance.getTypeName();
 
         // ensure trait type is already registered with the TS
-        Preconditions.checkArgument(typeSystem.isRegistered(traitName),
-                "trait=%s should be defined in type system before it can be added", traitName);
+        if ( !typeSystem.isRegistered(traitName) ) {
+            String msg = String.format("trait=%s should be defined in type system before it can be added", traitName);
+            LOG.error(msg);
+            throw new TypeNotFoundException(msg);
+        }
+
         // ensure trait is not already defined
         Preconditions.checkArgument(!getTraitNames(guid).contains(traitName),
                 "trait=%s is already defined for entity=%s", traitName, guid);
@@ -350,6 +356,8 @@ public class DefaultMetadataService implements MetadataService {
             TraitType traitType = typeSystem.getDataType(TraitType.class, entityTypeName);
             return traitType.convert(
                     traitInstance, Multiplicity.REQUIRED);
+        } catch ( TypeNotFoundException e ) {
+            throw e;
         } catch (Exception e) {
             throw new MetadataException("Error deserializing trait instance", e);
         }
@@ -369,9 +377,12 @@ public class DefaultMetadataService implements MetadataService {
         ParamChecker.notEmpty(traitNameToBeDeleted, "Trait name cannot be null");
 
         // ensure trait type is already registered with the TS
-        Preconditions.checkArgument(typeSystem.isRegistered(traitNameToBeDeleted),
-                "trait=%s should be defined in type system before it can be deleted",
+        if ( !typeSystem.isRegistered(traitNameToBeDeleted)) {
+            final String msg = String.format("trait=%s should be defined in type system before it can be deleted",
                     traitNameToBeDeleted);
+            LOG.error(msg);
+            throw new TypeNotFoundException(msg);
+        }
 
         repository.deleteTrait(guid, traitNameToBeDeleted);
 

typesystem/src/main/java/org/apache/hadoop/metadata/TypeNotFoundException.java

+/**
+ * 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.
+ */
+
+package org.apache.hadoop.metadata;
+
+/**
+ * A simple wrapper for 404.
+ */
+public class TypeNotFoundException extends MetadataException {
+    public TypeNotFoundException() {
+    }
+
+    public TypeNotFoundException(String message) {
+        super(message);
+    }
+
+    public TypeNotFoundException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public TypeNotFoundException(Throwable cause) {
+        super(cause);
+    }
+
+    public TypeNotFoundException(String message, Throwable cause, boolean enableSuppression,
+                                 boolean writableStackTrace) {
+        super(message, cause, enableSuppression, writableStackTrace);
+    }
+}

typesystem/src/main/java/org/apache/hadoop/metadata/typesystem/types/TypeSystem.java

@@ -22,6 +22,7 @@ import com.google.common.collect.ArrayListMultimap;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Multimap;
 import org.apache.hadoop.metadata.MetadataException;
+import org.apache.hadoop.metadata.TypeNotFoundException;
 import org.apache.hadoop.metadata.classification.InterfaceAudience;
 import org.apache.hadoop.metadata.typesystem.TypesDef;
 
@@ -160,7 +161,7 @@ public class TypeSystem {
             return cls.cast(dT);
         }
 
-        throw new MetadataException(String.format("Unknown datatype: %s", name));
+        throw new TypeNotFoundException(String.format("Unknown datatype: %s", name));
     }
 
     public StructType defineStructType(String name,

webapp/src/main/java/org/apache/hadoop/metadata/web/filters/AuditFilter.java

@@ -81,11 +81,12 @@ public class AuditFilter implements Filter {
         final String who = getUserFromRequest(httpRequest);
         final String fromHost = httpRequest.getRemoteHost();
         final String fromAddress = httpRequest.getRemoteAddr();
+        final String whatRequest = httpRequest.getMethod();
         final String whatURL = Servlets.getRequestURL(httpRequest);
         final String whatAddrs = httpRequest.getLocalAddr();
 
-        LOG.debug("Audit: {}/{} performed request {} ({}) at time {}",
-                who, fromAddress, whatURL, whatAddrs, whenISO9601);
+        LOG.debug("Audit: {}/{} performed request {} {} ({}) at time {}",
+                who, fromAddress, whatRequest, whatURL, whatAddrs, whenISO9601);
         audit(who, fromAddress, fromHost, whatURL, whatAddrs, whenISO9601);
     }
 

webapp/src/main/java/org/apache/hadoop/metadata/web/resources/EntityResource.java

@@ -22,6 +22,7 @@ import com.google.common.base.Preconditions;
 import org.apache.hadoop.metadata.MetadataException;
 import org.apache.hadoop.metadata.MetadataServiceClient;
 import org.apache.hadoop.metadata.ParamChecker;
+import org.apache.hadoop.metadata.TypeNotFoundException;
 import org.apache.hadoop.metadata.repository.EntityNotFoundException;
 import org.apache.hadoop.metadata.services.MetadataService;
 import org.apache.hadoop.metadata.typesystem.types.ValueConversionException;
@@ -48,7 +49,6 @@ import javax.ws.rs.core.Context;
 import javax.ws.rs.core.Response;
 import javax.ws.rs.core.UriBuilder;
 import javax.ws.rs.core.UriInfo;
-import java.io.IOException;
 import java.net.URI;
 import java.util.List;
 
@@ -300,11 +300,11 @@ public class EntityResource {
             response.put(MetadataServiceClient.GUID, guid);
 
             return Response.created(locationURI).entity(response).build();
-        } catch (EntityNotFoundException e) {
+        } catch (EntityNotFoundException | TypeNotFoundException e) {
             LOG.error("An entity with GUID={} does not exist", guid, e);
             throw new WebApplicationException(
                     Servlets.getErrorResponse(e, Response.Status.NOT_FOUND));
-        } catch (MetadataException | IOException | IllegalArgumentException e) {
+        } catch (MetadataException | IllegalArgumentException e) {
             LOG.error("Unable to add trait for entity={}", guid, e);
             throw new WebApplicationException(
                     Servlets.getErrorResponse(e, Response.Status.BAD_REQUEST));
@@ -338,7 +338,7 @@ public class EntityResource {
             response.put(TRAIT_NAME, traitName);
 
             return Response.ok(response).build();
-        } catch (EntityNotFoundException e) {
+        } catch (EntityNotFoundException | TypeNotFoundException e) {
             LOG.error("An entity with GUID={} does not exist", guid, e);
             throw new WebApplicationException(
                     Servlets.getErrorResponse(e, Response.Status.NOT_FOUND));

webapp/src/test/java/org/apache/hadoop/metadata/web/resources/EntityJerseyResourceIT.java

@@ -424,7 +424,7 @@ public class EntityJerseyResourceIT extends BaseResourceIT {
                 .accept(Servlets.JSON_MEDIA_TYPE)
                 .type(Servlets.JSON_MEDIA_TYPE)
                 .method(HttpMethod.POST, ClientResponse.class, traitInstanceAsJSON);
-        Assert.assertEquals(clientResponse.getStatus(), Response.Status.BAD_REQUEST.getStatusCode());
+        Assert.assertEquals(clientResponse.getStatus(), Response.Status.NOT_FOUND.getStatusCode());
     }
 
     @Test(dependsOnMethods = "testGetTraitNames")
@@ -494,7 +494,7 @@ public class EntityJerseyResourceIT extends BaseResourceIT {
                 .accept(Servlets.JSON_MEDIA_TYPE)
                 .type(Servlets.JSON_MEDIA_TYPE)
                 .method(HttpMethod.POST, ClientResponse.class, traitInstanceAsJSON);
-        Assert.assertEquals(clientResponse.getStatus(), Response.Status.BAD_REQUEST.getStatusCode());
+        Assert.assertEquals(clientResponse.getStatus(), Response.Status.NOT_FOUND.getStatusCode());
     }
 
     @Test(dependsOnMethods = "testAddTrait")
@@ -532,7 +532,7 @@ public class EntityJerseyResourceIT extends BaseResourceIT {
                 .accept(Servlets.JSON_MEDIA_TYPE)
                 .type(Servlets.JSON_MEDIA_TYPE)
                 .method(HttpMethod.DELETE, ClientResponse.class);
-        Assert.assertEquals(clientResponse.getStatus(), Response.Status.BAD_REQUEST.getStatusCode());
+        Assert.assertEquals(clientResponse.getStatus(), Response.Status.NOT_FOUND.getStatusCode());
 
         String responseAsString = clientResponse.getEntity(String.class);
         Assert.assertNotNull(responseAsString);