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https://github.com/Kingsrook/qqq.git
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CE-1180 Better built-in support for processes with dynamic flows - that is:
- in a backendStepOutput, you can set overrideLastStepName and call updateStepList - those values then flow through RunProcessAction to the runProcessOutput, then out through the javalin to the frontend.
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/*
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* QQQ - Low-code Application Framework for Engineers.
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* Copyright (C) 2021-2024. Kingsrook, LLC
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* 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
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* contact@kingsrook.com
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* https://github.com/Kingsrook/
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package com.kingsrook.qqq.backend.core.actions.processes;
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import java.util.List;
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import java.util.Optional;
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import com.kingsrook.qqq.backend.core.BaseTest;
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import com.kingsrook.qqq.backend.core.actions.processes.RunProcessTest.NoopBackendStep;
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import com.kingsrook.qqq.backend.core.context.QContext;
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import com.kingsrook.qqq.backend.core.exceptions.QException;
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import com.kingsrook.qqq.backend.core.model.actions.processes.RunBackendStepInput;
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import com.kingsrook.qqq.backend.core.model.actions.processes.RunBackendStepOutput;
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import com.kingsrook.qqq.backend.core.model.actions.processes.RunProcessInput;
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import com.kingsrook.qqq.backend.core.model.actions.processes.RunProcessOutput;
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import com.kingsrook.qqq.backend.core.model.metadata.code.QCodeReference;
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import com.kingsrook.qqq.backend.core.model.metadata.processes.QBackendStepMetaData;
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import com.kingsrook.qqq.backend.core.model.metadata.processes.QFrontendStepMetaData;
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import com.kingsrook.qqq.backend.core.model.metadata.processes.QProcessMetaData;
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import com.kingsrook.qqq.backend.core.utils.collections.MapBuilder;
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import org.apache.commons.lang.BooleanUtils;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertNull;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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/*******************************************************************************
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**
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*******************************************************************************/
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public class RunProcessUpdateStepListTest extends BaseTest
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{
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private static final String PROCESS_NAME = RunProcessUpdateStepListTest.class.getSimpleName();
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private final static String STEP_START = "start";
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private final static String STEP_A = "a";
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private final static String STEP_B = "b";
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private final static String STEP_C = "c";
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private final static String STEP_1 = "1";
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private final static String STEP_2 = "2";
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private final static String STEP_3 = "3";
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private final static String STEP_END = "end";
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private final static List<String> LETTERS_STEP_LIST = List.of(
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STEP_START,
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STEP_A,
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STEP_B,
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STEP_C,
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STEP_END
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);
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private final static List<String> NUMBERS_STEP_LIST = List.of(
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STEP_START,
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STEP_1,
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STEP_2,
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STEP_3,
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STEP_END
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);
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/*******************************************************************************
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**
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*******************************************************************************/
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@Test
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void testGoingLettersPath() throws QException
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{
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QContext.getQInstance().addProcess(defineProcess());
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////////////////////////////////////////////////////////////
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// start the process, telling it to go the "letters" path //
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////////////////////////////////////////////////////////////
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RunProcessInput runProcessInput = new RunProcessInput();
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runProcessInput.setProcessName(PROCESS_NAME);
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runProcessInput.setFrontendStepBehavior(RunProcessInput.FrontendStepBehavior.BREAK);
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runProcessInput.setValues(MapBuilder.of("which", "letters"));
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RunProcessOutput runProcessOutput = new RunProcessAction().execute(runProcessInput);
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// assert that we got back the next-step name of A, and the updated list of frontend steps (A, C) //
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////////////////////////////////////////////////////////////////////////////////////////////////////
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Optional<String> nextStepName = runProcessOutput.getProcessState().getNextStepName();
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assertTrue(nextStepName.isPresent());
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assertEquals(STEP_A, nextStepName.get());
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assertEquals(List.of(STEP_A, STEP_C, STEP_END), runProcessOutput.getUpdatedFrontendStepList().stream().map(s -> s.getName()).toList());
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/////////////////////////////////////////////////
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// resume the process after that frontend step //
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/////////////////////////////////////////////////
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runProcessInput.setProcessUUID(runProcessOutput.getProcessUUID());
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runProcessInput.setStartAfterStep(nextStepName.get());
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runProcessOutput = new RunProcessAction().execute(runProcessInput);
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///////////////////////////////////////////////////////////////////////////////////////
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// assert we got back C as the next-step now, and no updated frontend list this time //
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///////////////////////////////////////////////////////////////////////////////////////
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nextStepName = runProcessOutput.getProcessState().getNextStepName();
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assertTrue(nextStepName.isPresent());
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assertEquals(STEP_C, nextStepName.get());
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assertNull(runProcessOutput.getUpdatedFrontendStepList());
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}
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/*******************************************************************************
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**
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*******************************************************************************/
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@Test
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void testGoingNumbersPathAndSkippingAhead() throws QException
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{
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QContext.getQInstance().addProcess(defineProcess());
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////////////////////////////////////////////////////////////////////////////////////
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// start the process, telling it to go the "numbers" path, and to skip ahead some //
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////////////////////////////////////////////////////////////////////////////////////
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RunProcessInput runProcessInput = new RunProcessInput();
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runProcessInput.setProcessName(PROCESS_NAME);
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runProcessInput.setFrontendStepBehavior(RunProcessInput.FrontendStepBehavior.BREAK);
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runProcessInput.setValues(MapBuilder.of("which", "numbers", "skipSomeSteps", true));
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RunProcessOutput runProcessOutput = new RunProcessAction().execute(runProcessInput);
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// assert that we got back the next-step name of 2, and the updated list of frontend steps (1, 3) //
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////////////////////////////////////////////////////////////////////////////////////////////////////
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Optional<String> nextStepName = runProcessOutput.getProcessState().getNextStepName();
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assertTrue(nextStepName.isPresent());
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assertEquals(STEP_END, nextStepName.get());
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assertEquals(List.of(STEP_2, STEP_END), runProcessOutput.getUpdatedFrontendStepList().stream().map(s -> s.getName()).toList());
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}
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/*******************************************************************************
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**
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*******************************************************************************/
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public QProcessMetaData defineProcess()
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{
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QProcessMetaData process = new QProcessMetaData()
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.withName(PROCESS_NAME)
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.withStepList(List.of(
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new QBackendStepMetaData()
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.withName(STEP_START)
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.withCode(new QCodeReference(StartStep.class)),
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new QFrontendStepMetaData()
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.withName(STEP_END)
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));
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process.addOptionalStep(new QFrontendStepMetaData().withName(STEP_A));
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process.addOptionalStep(new QBackendStepMetaData().withName(STEP_B).withCode(new QCodeReference(NoopBackendStep.class)));
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process.addOptionalStep(new QFrontendStepMetaData().withName(STEP_C));
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process.addOptionalStep(new QBackendStepMetaData().withName(STEP_1).withCode(new QCodeReference(NoopBackendStep.class)));
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process.addOptionalStep(new QFrontendStepMetaData().withName(STEP_2));
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process.addOptionalStep(new QBackendStepMetaData().withName(STEP_3).withCode(new QCodeReference(NoopBackendStep.class)));
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return (process);
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}
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/*******************************************************************************
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**
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*******************************************************************************/
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public static class StartStep implements BackendStep
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{
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/*******************************************************************************
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**
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*******************************************************************************/
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@Override
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public void run(RunBackendStepInput runBackendStepInput, RunBackendStepOutput runBackendStepOutput) throws QException
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{
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boolean skipSomeSteps = BooleanUtils.isTrue(runBackendStepInput.getValueBoolean("skipSomeSteps"));
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if(runBackendStepInput.getValueString("which").equals("letters"))
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{
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runBackendStepOutput.updateStepList(LETTERS_STEP_LIST);
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if(skipSomeSteps)
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{
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runBackendStepOutput.setOverrideLastStepName(STEP_C);
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}
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}
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else
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{
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runBackendStepOutput.updateStepList(NUMBERS_STEP_LIST);
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if(skipSomeSteps)
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{
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runBackendStepOutput.setOverrideLastStepName(STEP_2);
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}
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}
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}
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}
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}
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