QQQ-7 first version of actual execution of processes

checkstyle.xml

@@ -46,6 +46,7 @@
    -->
 
    <module name="TreeWalker">
+      <module name="SuppressWarningsHolder"/>
       <module name="OuterTypeFilename"/>
       <module name="IllegalTokenText">
          <property name="tokens" value="STRING_LITERAL, CHAR_LITERAL"/>
@@ -171,7 +172,7 @@
          <property name="caseIndent" value="3"/>
          <property name="throwsIndent" value="6"/>
          <property name="lineWrappingIndentation" value="3"/>
-         <property name="arrayInitIndent" value="2"/>
+         <property name="arrayInitIndent" value="6"/>
       </module>
       <!--
       <module name="AbbreviationAsWordInName">
@@ -260,4 +261,5 @@
       <module name="MissingOverride"/>
 
    </module>
+   <module name="SuppressWarningsFilter"/>
 </module>

src/main/java/com/kingsrook/qqq/frontend/picocli/PicoCliProcessCallback.java

@@ -0,0 +1,87 @@
+/*
+ * 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.frontend.picocli;
+
+
+import java.io.Serializable;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Scanner;
+import com.kingsrook.qqq.backend.core.callbacks.QProcessCallback;
+import com.kingsrook.qqq.backend.core.model.actions.query.QQueryFilter;
+import com.kingsrook.qqq.backend.core.model.metadata.QFieldMetaData;
+import picocli.CommandLine;
+
+
+/*******************************************************************************
+ ** Define how a PicoCLI process gets data back to a QProcess.
+ *******************************************************************************/
+public class PicoCliProcessCallback implements QProcessCallback
+{
+   private final CommandLine commandLine;
+
+
+
+   /*******************************************************************************
+    ** Constructor that takes the picocli CommandLine object
+    *******************************************************************************/
+   public PicoCliProcessCallback(CommandLine commandLine)
+   {
+      this.commandLine = commandLine;
+   }
+
+
+
+   /*******************************************************************************
+    ** Get the filter query for this callback.
+    *******************************************************************************/
+   @Override
+   public QQueryFilter getQueryFilter()
+   {
+      return null;
+   }
+
+
+
+   /*******************************************************************************
+    ** Get the field values for this callback.
+    *******************************************************************************/
+   @Override
+   public Map<String, Serializable> getFieldValues(List<QFieldMetaData> fields)
+   {
+      Map<String, Serializable> rs      = new HashMap<>();
+      final Scanner             scanner = new Scanner(System.in);
+
+      ///////////////////////////////////
+      // todo - only if "interactive?" //
+      ///////////////////////////////////
+      for(QFieldMetaData field : fields)
+      {
+         commandLine.getOut().println("Please supply a value for the field: [" + field.getLabel() + "]:");
+         rs.put(field.getName(), scanner.nextLine());
+      }
+
+      return (rs);
+   }
+
+}

src/main/java/com/kingsrook/qqq/frontend/picocli/QCommandBuilder.java

@@ -25,12 +25,16 @@ package com.kingsrook.qqq.frontend.picocli;
 import java.math.BigDecimal;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
 import java.util.List;
+import java.util.Map;
 import com.kingsrook.qqq.backend.core.model.metadata.QFieldMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
 import com.kingsrook.qqq.backend.core.model.metadata.QTableMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.processes.QProcessMetaData;
 import com.kingsrook.qqq.backend.core.utils.CollectionUtils;
+import com.kingsrook.qqq.backend.core.utils.StringUtils;
 import picocli.CommandLine;
 
 
@@ -94,9 +98,27 @@ public class QCommandBuilder
          List<QProcessMetaData> processes = qInstance.getProcessesForTable(tableName);
          if(CollectionUtils.nullSafeHasContents(processes))
          {
-            tableCommand.addSubcommand("process", defineTableProcessesCommand(table, processes));
+            tableCommand.addSubcommand("process", defineProcessesCommand(processes));
          }
       });
+
+      ///////////////////////////////////////////////////////////////////////////
+      // add all orphan processes (e.g., ones without tables) to the top-level //
+      ///////////////////////////////////////////////////////////////////////////
+      List<QProcessMetaData> orphanProcesses = new ArrayList<>();
+      for(QProcessMetaData process : qInstance.getProcesses().values())
+      {
+         if(!StringUtils.hasContent(process.getTableName()))
+         {
+            orphanProcesses.add(process);
+         }
+      }
+
+      if(!orphanProcesses.isEmpty())
+      {
+         topCommandSpec.addSubcommand("processes", defineProcessesCommand(orphanProcesses));
+      }
+
       return topCommandSpec;
    }
 
@@ -233,14 +255,34 @@ public class QCommandBuilder
    /*******************************************************************************
     **
     *******************************************************************************/
-   private CommandLine.Model.CommandSpec defineTableProcessesCommand(QTableMetaData table, List<QProcessMetaData> processes)
+   private CommandLine.Model.CommandSpec defineProcessesCommand(List<QProcessMetaData> processes)
    {
       CommandLine.Model.CommandSpec processesCommand = CommandLine.Model.CommandSpec.create();
 
       for(QProcessMetaData process : processes)
       {
+         ///////////////////////////////////////////
+         // add the sub-command to run the proces //
+         ///////////////////////////////////////////
          CommandLine.Model.CommandSpec processCommand = CommandLine.Model.CommandSpec.create();
          processesCommand.addSubcommand(process.getName(), processCommand);
+
+         //////////////////////////////////////////////////////////////////////////////////
+         // add all (distinct, by name) input fields to the command as --field-* options //
+         //////////////////////////////////////////////////////////////////////////////////
+         Map<String, QFieldMetaData> inputFieldMap = new LinkedHashMap<>();
+         for(QFieldMetaData inputField : process.getInputFields())
+         {
+            inputFieldMap.put(inputField.getName(), inputField);
+         }
+
+         for(QFieldMetaData field : inputFieldMap.values())
+         {
+            processCommand.addOption(CommandLine.Model.OptionSpec.builder("--field-" + field.getName())
+               .type(getClassForField(field))
+               .build());
+         }
+
       }
 
       return (processesCommand);

src/main/java/com/kingsrook/qqq/frontend/picocli/QPicoCliImplementation.java

@@ -36,7 +36,7 @@ import com.kingsrook.qqq.backend.core.actions.DeleteAction;
 import com.kingsrook.qqq.backend.core.actions.InsertAction;
 import com.kingsrook.qqq.backend.core.actions.MetaDataAction;
 import com.kingsrook.qqq.backend.core.actions.QueryAction;
-import com.kingsrook.qqq.backend.core.actions.RunFunctionAction;
+import com.kingsrook.qqq.backend.core.actions.RunProcessAction;
 import com.kingsrook.qqq.backend.core.actions.TableMetaDataAction;
 import com.kingsrook.qqq.backend.core.actions.UpdateAction;
 import com.kingsrook.qqq.backend.core.adapters.CsvToQRecordAdapter;
@@ -53,6 +53,8 @@ import com.kingsrook.qqq.backend.core.model.actions.metadata.MetaDataRequest;
 import com.kingsrook.qqq.backend.core.model.actions.metadata.MetaDataResult;
 import com.kingsrook.qqq.backend.core.model.actions.metadata.table.TableMetaDataRequest;
 import com.kingsrook.qqq.backend.core.model.actions.metadata.table.TableMetaDataResult;
+import com.kingsrook.qqq.backend.core.model.actions.processes.RunProcessRequest;
+import com.kingsrook.qqq.backend.core.model.actions.processes.RunProcessResult;
 import com.kingsrook.qqq.backend.core.model.actions.query.QCriteriaOperator;
 import com.kingsrook.qqq.backend.core.model.actions.query.QFilterCriteria;
 import com.kingsrook.qqq.backend.core.model.actions.query.QQueryFilter;
@@ -62,6 +64,7 @@ import com.kingsrook.qqq.backend.core.model.actions.shared.mapping.AbstractQFiel
 import com.kingsrook.qqq.backend.core.model.actions.update.UpdateRequest;
 import com.kingsrook.qqq.backend.core.model.actions.update.UpdateResult;
 import com.kingsrook.qqq.backend.core.model.data.QRecord;
+import com.kingsrook.qqq.backend.core.model.metadata.QFieldMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
 import com.kingsrook.qqq.backend.core.model.metadata.QTableMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.processes.QProcessMetaData;
@@ -91,7 +94,7 @@ public class QPicoCliImplementation
    public static final int DEFAULT_LIMIT = 20;
 
    private static QInstance qInstance;
-   private static QSession session;
+   private static QSession  session;
 
 
 
@@ -106,14 +109,14 @@ public class QPicoCliImplementation
       // parse args to look up metaData and prime instance
       if(args.length > 0 && args[0].startsWith("--qInstanceJsonFile="))
       {
-         String filePath = args[0].replaceFirst("--.*=", "");
+         String filePath      = args[0].replaceFirst("--.*=", "");
          String qInstanceJson = FileUtils.readFileToString(new File(filePath));
          qInstance = new QInstanceAdapter().jsonToQInstanceIncludingBackends(qInstanceJson);
 
          String[] subArgs = Arrays.copyOfRange(args, 1, args.length);
 
          QPicoCliImplementation qPicoCliImplementation = new QPicoCliImplementation(qInstance);
-         int exitCode = qPicoCliImplementation.runCli("qapi", subArgs);
+         int                    exitCode               = qPicoCliImplementation.runCli("qapi", subArgs);
          System.exit(exitCode);
       }
       else
@@ -226,7 +229,7 @@ public class QPicoCliImplementation
    private static void setupSession(String[] args) throws QModuleDispatchException
    {
       QAuthenticationModuleDispatcher qAuthenticationModuleDispatcher = new QAuthenticationModuleDispatcher();
-      QAuthenticationModuleInterface authenticationModule = qAuthenticationModuleDispatcher.getQModule(qInstance.getAuthentication());
+      QAuthenticationModuleInterface  authenticationModule            = qAuthenticationModuleDispatcher.getQModule(qInstance.getAuthentication());
 
       // todo - does this need some per-provider logic actually?  mmm...
       Map<String, String> authenticationContext = new HashMap<>();
@@ -247,9 +250,23 @@ public class QPicoCliImplementation
       }
       else
       {
-         String subCommandName = parseResult.subcommand().commandSpec().name();
+         ParseResult subParseResult = parseResult.subcommand();
+         String      subCommandName = subParseResult.commandSpec().name();
          CommandLine subCommandLine = commandLine.getSubcommands().get(subCommandName);
-         return runTableLevelCommand(subCommandLine, parseResult.subcommand());
+         switch(subCommandName)
+         {
+            case "processes":
+            {
+               return runTableProcess(subCommandLine, null, subParseResult);
+            }
+            default:
+            {
+               /////////////////////////////////////////////////////////
+               // by default, assume the command here is a table name //
+               /////////////////////////////////////////////////////////
+               return runTableLevelCommand(subCommandLine, subParseResult);
+            }
+         }
       }
    }
 
@@ -265,7 +282,7 @@ public class QPicoCliImplementation
       if(tableParseResult.hasSubcommand())
       {
          ParseResult subParseResult = tableParseResult.subcommand();
-         String subCommandName = subParseResult.commandSpec().name();
+         String      subCommandName = subParseResult.commandSpec().name();
          switch(subCommandName)
          {
             case "meta-data":
@@ -322,7 +339,7 @@ public class QPicoCliImplementation
       }
       else
       {
-         String subCommandName = subParseResult.subcommand().commandSpec().name();
+         String      subCommandName = subParseResult.subcommand().commandSpec().name();
          CommandLine subCommandLine = commandLine.getSubcommands().get(subCommandName);
          return runTableProcessLevelCommand(subCommandLine, tableName, subParseResult.subcommand());
       }
@@ -335,11 +352,44 @@ public class QPicoCliImplementation
     *******************************************************************************/
    private int runTableProcessLevelCommand(CommandLine subCommandLine, String tableName, ParseResult processParseResult)
    {
-      String processName = processParseResult.commandSpec().name();
+      String            processName = processParseResult.commandSpec().name();
-      QTableMetaData table = qInstance.getTable(tableName);
+      QProcessMetaData  process     = qInstance.getProcess(processName);
-      QProcessMetaData process = qInstance.getProcess(processName);
+      RunProcessRequest request     = new RunProcessRequest(qInstance);
-      RunFunctionAction runFunctionAction = new RunFunctionAction();
+
-      // todo!
+      request.setSession(session);
+      request.setProcessName(processName);
+      request.setCallback(new PicoCliProcessCallback(subCommandLine));
+
+      for(OptionSpec matchedOption : processParseResult.matchedOptions())
+      {
+         if(matchedOption.longestName().startsWith("--field-"))
+         {
+            String fieldName = matchedOption.longestName().substring(8);
+            request.addValue(fieldName, matchedOption.getValue());
+         }
+      }
+
+      try
+      {
+         RunProcessResult result = new RunProcessAction().execute(request);
+         subCommandLine.getOut().println("Process Results: "); // todo better!!
+         for(QFieldMetaData outputField : process.getOutputFields())
+         {
+            subCommandLine.getOut().format("   %s: %s\n", outputField.getLabel(), result.getValues().get(outputField.getName()));
+         }
+
+         if(result.getError() != null)
+         {
+            subCommandLine.getOut().println("Process Error message: " + result.getError());
+         }
+      }
+      catch(Exception e)
+      {
+         e.printStackTrace();
+         subCommandLine.getOut().println("Caught Exception running process: " + e); // todo better!
+         return 1;
+      }
+
       return 0;
    }
 
@@ -379,7 +429,7 @@ public class QPicoCliImplementation
       for(String criterion : criteria)
       {
          // todo - parse!
-         String[] parts = criterion.split(" ");
+         String[]        parts          = criterion.split(" ");
          QFilterCriteria qQueryCriteria = new QFilterCriteria();
          qQueryCriteria.setFieldName(parts[0]);
          qQueryCriteria.setOperator(QCriteriaOperator.valueOf(parts[1]));
@@ -440,7 +490,7 @@ public class QPicoCliImplementation
          try
          {
             String path = subParseResult.matchedOptionValue("--csvFile", "");
-            String csv = FileUtils.readFileToString(new File(path));
+            String csv  = FileUtils.readFileToString(new File(path));
             recordList = new CsvToQRecordAdapter().buildRecordsFromCsv(csv, table, mapping);
          }
          catch(IOException e)
@@ -497,7 +547,7 @@ public class QPicoCliImplementation
 
       boolean anyFields = false;
 
-      String primaryKeyOption = subParseResult.matchedOptionValue("--primaryKey", "");
+      String         primaryKeyOption = subParseResult.matchedOptionValue("--primaryKey", "");
       Serializable[] primaryKeyValues = primaryKeyOption.split(",");
       for(Serializable primaryKeyValue : primaryKeyValues)
       {
@@ -546,7 +596,7 @@ public class QPicoCliImplementation
       /////////////////////////////////////////////
       // get the pKeys that the user specified //
       /////////////////////////////////////////////
-      String primaryKeyOption = subParseResult.matchedOptionValue("--primaryKey", "");
+      String         primaryKeyOption = subParseResult.matchedOptionValue("--primaryKey", "");
       Serializable[] primaryKeyValues = primaryKeyOption.split(",");
       deleteRequest.setPrimaryKeys(Arrays.asList(primaryKeyValues));
 

src/test/java/com/kingsrook/qqq/frontend/picocli/QPicoCliImplementationTest.java

@@ -22,10 +22,12 @@
 package com.kingsrook.qqq.frontend.picocli;
 
 
+import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.IOException;
 import java.io.PrintStream;
+import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -37,7 +39,6 @@ import org.apache.commons.io.FileUtils;
 import org.json.JSONArray;
 import org.json.JSONObject;
 import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
@@ -51,8 +52,8 @@ import static org.junit.jupiter.api.Assertions.fail;
  *******************************************************************************/
 class QPicoCliImplementationTest
 {
-   private static final boolean VERBOSE = true;
+   private static final boolean VERBOSE  = true;
-   private static final String CLI_NAME = "cli-unit-test";
+   private static final String  CLI_NAME = "cli-unit-test";
 
 
 
@@ -115,7 +116,7 @@ class QPicoCliImplementationTest
    @Test
    public void test_badOption()
    {
-      String badOption = "--asdf";
+      String     badOption  = "--asdf";
       TestOutput testOutput = testCli(badOption);
       assertTestErrorContains(testOutput, "Unknown option: '" + badOption + "'");
       assertTestErrorContains(testOutput, "Usage: " + CLI_NAME);
@@ -131,14 +132,22 @@ class QPicoCliImplementationTest
    public void test_metaData()
    {
       TestOutput testOutput = testCli("--meta-data");
-      JSONObject metaData = JsonUtils.toJSONObject(testOutput.getOutput());
+      JSONObject metaData   = JsonUtils.toJSONObject(testOutput.getOutput());
       assertNotNull(metaData);
-      assertEquals(1, metaData.keySet().size(), "Number of top-level keys");
+      assertEquals(2, metaData.keySet().size(), "Number of top-level keys");
+
       assertTrue(metaData.has("tables"));
-      JSONObject tables = metaData.getJSONObject("tables");
+      JSONObject tables      = metaData.getJSONObject("tables");
       JSONObject personTable = tables.getJSONObject("person");
       assertEquals("person", personTable.getString("name"));
       assertEquals("Person", personTable.getString("label"));
+
+      assertTrue(metaData.has("processes"));
+      JSONObject processes    = metaData.getJSONObject("processes");
+      JSONObject greetProcess = processes.getJSONObject("greet");
+      assertEquals("greet", greetProcess.getString("name"));
+      // todo - need label assertEquals("Person", greetProcess.getString("label"));
+      assertEquals("person", greetProcess.getString("tableName"));
    }
 
 
@@ -173,7 +182,7 @@ class QPicoCliImplementationTest
    @Test
    public void test_tableUnknownCommand()
    {
-      String badCommand = "qwuijibo";
+      String     badCommand = "qwuijibo";
       TestOutput testOutput = testCli("person", badCommand);
       assertTestErrorContains(testOutput, "Unmatched argument at index 1: '" + badCommand + "'");
       assertTestErrorContains(testOutput, "Usage: " + CLI_NAME + " person \\[COMMAND\\]");
@@ -189,7 +198,7 @@ class QPicoCliImplementationTest
    public void test_tableMetaData()
    {
       TestOutput testOutput = testCli("person", "meta-data");
-      JSONObject metaData = JsonUtils.toJSONObject(testOutput.getOutput());
+      JSONObject metaData   = JsonUtils.toJSONObject(testOutput.getOutput());
       assertNotNull(metaData);
       assertEquals(1, metaData.keySet().size(), "Number of top-level keys");
       JSONObject table = metaData.getJSONObject("table");
@@ -212,7 +221,7 @@ class QPicoCliImplementationTest
    @Test
    public void test_tableQuery()
    {
-      TestOutput testOutput = testCli("person", "query", "--skip=1", "--limit=2", "--criteria", "id NOT_EQUALS 3");
+      TestOutput testOutput  = testCli("person", "query", "--skip=1", "--limit=2", "--criteria", "id NOT_EQUALS 3");
       JSONObject queryResult = JsonUtils.toJSONObject(testOutput.getOutput());
       assertNotNull(queryResult);
       JSONArray records = queryResult.getJSONArray("records");
@@ -271,7 +280,7 @@ class QPicoCliImplementationTest
          --jsonBody={"first":"Chester","ln":"Cheese","email":"chester@kingsrook.com"}
          """;
 
-      TestOutput testOutput = testCli("person", "insert", mapping, jsonBody);
+      TestOutput testOutput   = testCli("person", "insert", mapping, jsonBody);
       JSONObject insertResult = JsonUtils.toJSONObject(testOutput.getOutput());
       assertNotNull(insertResult);
       assertEquals(1, insertResult.getJSONArray("records").length());
@@ -305,7 +314,7 @@ class QPicoCliImplementationTest
       file.deleteOnExit();
       FileUtils.writeStringToFile(file, jsonContents);
 
-      TestOutput testOutput = testCli("person", "insert", mapping, "--jsonFile=" + file.getAbsolutePath());
+      TestOutput testOutput   = testCli("person", "insert", mapping, "--jsonFile=" + file.getAbsolutePath());
       JSONObject insertResult = JsonUtils.toJSONObject(testOutput.getOutput());
       assertNotNull(insertResult);
       JSONArray records = insertResult.getJSONArray("records");
@@ -343,7 +352,7 @@ class QPicoCliImplementationTest
       file.deleteOnExit();
       FileUtils.writeStringToFile(file, csvContents);
 
-      TestOutput testOutput = testCli("person", "insert", mapping, "--csvFile=" + file.getAbsolutePath());
+      TestOutput testOutput   = testCli("person", "insert", mapping, "--csvFile=" + file.getAbsolutePath());
       JSONObject insertResult = JsonUtils.toJSONObject(testOutput.getOutput());
       assertNotNull(insertResult);
       JSONArray records = insertResult.getJSONArray("records");
@@ -415,7 +424,7 @@ class QPicoCliImplementationTest
    @Test
    public void test_tableDelete() throws Exception
    {
-      TestOutput testOutput = testCli("person", "delete", "--primaryKey", "2,4");
+      TestOutput testOutput   = testCli("person", "delete", "--primaryKey", "2,4");
       JSONObject deleteResult = JsonUtils.toJSONObject(testOutput.getOutput());
       assertNotNull(deleteResult);
       JSONArray records = deleteResult.getJSONArray("records");
@@ -459,8 +468,8 @@ class QPicoCliImplementationTest
    @Test
    public void test_tableProcessUnknownName() throws Exception
    {
-      String badProcessName = "not-a-process";
+      String     badProcessName = "not-a-process";
-      TestOutput testOutput = testCli("person", "process", badProcessName);
+      TestOutput testOutput     = testCli("person", "process", badProcessName);
       assertTestErrorContains(testOutput, "Unmatched argument at index 2: '" + badProcessName + "'");
       assertTestErrorContains(testOutput, "Usage: " + CLI_NAME + " person process \\[COMMAND\\]");
    }
@@ -472,12 +481,25 @@ class QPicoCliImplementationTest
     **
     *******************************************************************************/
    @Test
-   @Disabled // not yet done.
+   public void test_tableProcessGreetUsingCallbackForFields() throws Exception
-   public void test_tableProcessGreet() throws Exception
    {
+      setStandardInputLines("Hi", "How are you?");
       TestOutput testOutput = testCli("person", "process", "greet");
+      assertTestOutputContains(testOutput, "Please supply a value for the field.*Greeting Prefix");
+      assertTestOutputContains(testOutput, "Hi X How are you?");
+   }
 
-      fail("Assertion not written...");
+
+   /*******************************************************************************
+    ** test running a process on a table
+    **
+    *******************************************************************************/
+   @Test
+   public void test_tableProcessGreetUsingOptionsForFields() throws Exception
+   {
+      TestOutput testOutput = testCli("person", "process", "greet", "--field-greetingPrefix=Hello", "--field-greetingSuffix=There");
+      assertTestOutputDoesNotContain(testOutput, "Please supply a value for the field");
+      assertTestOutputContains(testOutput, "Hello X There");
    }
 
 
@@ -543,7 +565,7 @@ class QPicoCliImplementationTest
       QPicoCliImplementation qPicoCliImplementation = new QPicoCliImplementation(qInstance);
 
       ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
-      ByteArrayOutputStream errorStream = new ByteArrayOutputStream();
+      ByteArrayOutputStream errorStream  = new ByteArrayOutputStream();
 
       if(VERBOSE)
       {
@@ -553,7 +575,7 @@ class QPicoCliImplementationTest
       qPicoCliImplementation.runCli(CLI_NAME, args, new PrintStream(outputStream, true), new PrintStream(errorStream, true));
 
       String output = outputStream.toString(StandardCharsets.UTF_8);
-      String error = errorStream.toString(StandardCharsets.UTF_8);
+      String error  = errorStream.toString(StandardCharsets.UTF_8);
 
       if(VERBOSE)
       {
@@ -567,14 +589,34 @@ class QPicoCliImplementationTest
 
 
 
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   private void setStandardInputLines(String... lines)
+   {
+      StringBuilder stringBuilder = new StringBuilder();
+      for(String line : lines)
+      {
+         stringBuilder.append(line);
+         if(!line.endsWith("\n"))
+         {
+            stringBuilder.append("\n");
+         }
+      }
+      ByteArrayInputStream stdin = new ByteArrayInputStream(stringBuilder.toString().getBytes(Charset.defaultCharset()));
+      System.setIn(stdin);
+   }
+
+
+
    /*******************************************************************************
     **
     *******************************************************************************/
    private static class TestOutput
    {
-      private String output;
+      private String   output;
       private String[] outputLines;
-      private String error;
+      private String   error;
       private String[] errorLines;
 
 

src/test/java/com/kingsrook/qqq/frontend/picocli/TestUtils.java

@@ -26,7 +26,6 @@ import java.io.InputStream;
 import java.sql.Connection;
 import java.util.List;
 import com.kingsrook.qqq.backend.core.model.metadata.QAuthenticationMetaData;
-import com.kingsrook.qqq.backend.core.model.metadata.QBackendMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.QCodeReference;
 import com.kingsrook.qqq.backend.core.model.metadata.QCodeType;
 import com.kingsrook.qqq.backend.core.model.metadata.QCodeUsage;
@@ -41,7 +40,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.processes.QOutputView;
 import com.kingsrook.qqq.backend.core.model.metadata.processes.QProcessMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.processes.QRecordListMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.processes.QRecordListView;
-import com.kingsrook.qqq.backend.module.rdbms.RDBMSBackendMetaData;
+import com.kingsrook.qqq.backend.module.rdbms.model.metadata.RDBMSBackendMetaData;
 import com.kingsrook.qqq.backend.module.rdbms.jdbc.ConnectionManager;
 import com.kingsrook.qqq.backend.module.rdbms.jdbc.QueryManager;
 import org.apache.commons.io.IOUtils;
@@ -62,9 +61,9 @@ public class TestUtils
    @SuppressWarnings("unchecked")
    public static void primeTestDatabase() throws Exception
    {
-      ConnectionManager connectionManager = new ConnectionManager();
+      ConnectionManager connectionManager          = new ConnectionManager();
-      Connection connection = connectionManager.getConnection(new RDBMSBackendMetaData(TestUtils.defineBackend()));
+      Connection        connection                 = connectionManager.getConnection(TestUtils.defineBackend());
-      InputStream primeTestDatabaseSqlStream = TestUtils.class.getResourceAsStream("/prime-test-database.sql");
+      InputStream       primeTestDatabaseSqlStream = TestUtils.class.getResourceAsStream("/prime-test-database.sql");
       assertNotNull(primeTestDatabaseSqlStream);
       List<String> lines = (List<String>) IOUtils.readLines(primeTestDatabaseSqlStream);
       lines = lines.stream().filter(line -> !line.startsWith("-- ")).toList();
@@ -84,7 +83,7 @@ public class TestUtils
    public static void runTestSql(String sql, QueryManager.ResultSetProcessor resultSetProcessor) throws Exception
    {
       ConnectionManager connectionManager = new ConnectionManager();
-      Connection connection = connectionManager.getConnection(new RDBMSBackendMetaData(defineBackend()));
+      Connection        connection        = connectionManager.getConnection(defineBackend());
       QueryManager.executeStatement(connection, sql, resultSetProcessor);
    }
 
@@ -123,16 +122,15 @@ public class TestUtils
     ** Define the h2 rdbms backend
     **
     *******************************************************************************/
-   public static QBackendMetaData defineBackend()
+   public static RDBMSBackendMetaData defineBackend()
    {
-      return new QBackendMetaData()
+      return (new RDBMSBackendMetaData()
-         .withName("default")
+         .withVendor("h2")
-         .withType("rdbms")
+         .withHostName("mem")
-         .withValue("vendor", "h2")
+         .withDatabaseName("test_database")
-         .withValue("hostName", "mem")
+         .withUsername("sa")
-         .withValue("databaseName", "test_database")
+         .withPassword("")
-         .withValue("username", "sa")
+         .withName("default"));
-         .withValue("password", "");
    }