CE-537 - Updating to support API Delete

qqq-backend-module-api/src/main/java/com/kingsrook/qqq/backend/module/api/APIBackendModule.java

@@ -32,6 +32,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.QBackendMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.tables.QTableBackendDetails;
 import com.kingsrook.qqq.backend.core.modules.backend.QBackendModuleInterface;
 import com.kingsrook.qqq.backend.module.api.actions.APICountAction;
+import com.kingsrook.qqq.backend.module.api.actions.APIDeleteAction;
 import com.kingsrook.qqq.backend.module.api.actions.APIGetAction;
 import com.kingsrook.qqq.backend.module.api.actions.APIInsertAction;
 import com.kingsrook.qqq.backend.module.api.actions.APIQueryAction;
@@ -136,7 +137,7 @@ public class APIBackendModule implements QBackendModuleInterface
    @Override
    public DeleteInterface getDeleteInterface()
    {
-      return (null); //return (new RDBMSDeleteAction());
+      return (new APIDeleteAction());
    }
 
 }

qqq-backend-module-api/src/main/java/com/kingsrook/qqq/backend/module/api/actions/APIDeleteAction.java

@@ -0,0 +1,59 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2022.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qqq.backend.module.api.actions;
+
+
+import com.kingsrook.qqq.backend.core.actions.interfaces.DeleteInterface;
+import com.kingsrook.qqq.backend.core.exceptions.QException;
+import com.kingsrook.qqq.backend.core.model.actions.tables.delete.DeleteInput;
+import com.kingsrook.qqq.backend.core.model.actions.tables.delete.DeleteOutput;
+import com.kingsrook.qqq.backend.core.model.metadata.tables.QTableMetaData;
+
+
+/*******************************************************************************
+ **
+ *******************************************************************************/
+public class APIDeleteAction extends AbstractAPIAction implements DeleteInterface
+{
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   public DeleteOutput execute(DeleteInput deleteInput) throws QException
+   {
+      QTableMetaData table = deleteInput.getTable();
+      preAction(deleteInput);
+      return (apiActionUtil.doDelete(table, deleteInput));
+   }
+
+
+
+   /*******************************************************************************
+    ** Specify whether this particular module's update action can & should fetch
+    ** records before updating them, e.g., for audits or "not-found-checks"
+    *******************************************************************************/
+   @Override
+   public boolean supportsPreFetchQuery()
+   {
+      return (false);
+   }
+
+}

qqq-backend-module-api/src/main/java/com/kingsrook/qqq/backend/module/api/actions/BaseAPIActionUtil.java

@@ -43,6 +43,8 @@ import com.kingsrook.qqq.backend.core.logging.QLogger;
 import com.kingsrook.qqq.backend.core.model.actions.AbstractTableActionInput;
 import com.kingsrook.qqq.backend.core.model.actions.tables.count.CountInput;
 import com.kingsrook.qqq.backend.core.model.actions.tables.count.CountOutput;
+import com.kingsrook.qqq.backend.core.model.actions.tables.delete.DeleteInput;
+import com.kingsrook.qqq.backend.core.model.actions.tables.delete.DeleteOutput;
 import com.kingsrook.qqq.backend.core.model.actions.tables.get.GetInput;
 import com.kingsrook.qqq.backend.core.model.actions.tables.get.GetOutput;
 import com.kingsrook.qqq.backend.core.model.actions.tables.insert.InsertInput;
@@ -79,6 +81,7 @@ import org.apache.http.HttpEntityEnclosingRequest;
 import org.apache.http.HttpResponse;
 import org.apache.http.HttpStatus;
 import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.client.methods.HttpDelete;
 import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.client.methods.HttpPost;
@@ -384,6 +387,41 @@ public class BaseAPIActionUtil
 
 
 
+   /*******************************************************************************
+    **
+    *
+    *******************************************************************************/
+   public DeleteOutput doDelete(QTableMetaData table, DeleteInput deleteInput) throws QException
+   {
+      try
+      {
+         DeleteOutput deleteOutput = new DeleteOutput();
+
+         String     urlSuffix = buildQueryStringForDelete(deleteInput.getQueryFilter(), deleteInput.getPrimaryKeys());
+         String     url       = buildTableUrl(table);
+         HttpDelete request   = new HttpDelete(url + urlSuffix);
+
+         QHttpResponse response = makeRequest(table, request);
+         if(response.getStatusCode() == 204)
+         {
+            deleteOutput.setDeletedRecordCount(1);
+         }
+         else
+         {
+            deleteOutput.setDeletedRecordCount(0);
+         }
+
+         return (deleteOutput);
+      }
+      catch(Exception e)
+      {
+         LOG.error("Error in API Delete", e);
+         throw new QException("Error executing Delete: " + e.getMessage(), e);
+      }
+   }
+
+
+
    /*******************************************************************************
     **
     *******************************************************************************/
@@ -601,6 +639,17 @@ public class BaseAPIActionUtil
 
 
 
+   /*******************************************************************************
+    ** method to build up delete string based on a given QFilter object
+    **
+    *******************************************************************************/
+   protected String buildQueryStringForDelete(QQueryFilter filter, List<Serializable> primaryKeys) throws QException
+   {
+      return ("");
+   }
+
+
+
    /*******************************************************************************
     ** Do a default query string for a single-record GET - e.g., a query for just 1 record.
     *******************************************************************************/

qqq-backend-module-api/src/main/java/com/kingsrook/qqq/backend/module/api/actions/QHttpResponse.java

@@ -69,7 +69,10 @@ public class QHttpResponse
             this.statusProtocolVersion = httpResponse.getStatusLine().getProtocolVersion().toString();
          }
       }
-      this.content = EntityUtils.toString(httpResponse.getEntity());
+      if(httpResponse.getEntity() != null)
+      {
+         this.content = EntityUtils.toString(httpResponse.getEntity());
+      }
    }