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/*
 * Copyright © 2014-2017 EntIT Software LLC, a Micro Focus company (L.P.)
 *
 * Licensed 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 io.cloudslang.samples.controlactions;

import io.cloudslang.score.api.EndBranchDataContainer;
import io.cloudslang.score.lang.ExecutionRuntimeServices;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * User: wahnonm
 * Date: 14/08/14
 * Time: 10:36
 */
public class BranchActions {

    public static final String STEP_POSITION = "stepPosition";
    public static final String EXECUTION_PLAN_ID = "executionPlanId";
	public static final String BRANCH_RESULTS = "branchResults";
	public static final String BRANCH_CONTEXTS = "branchContexts";
	public static final String PARALLEL_EXECUTION_PLAN_IDS = "parallelExecutionPlanIds";

	@SuppressWarnings("unused")
    public void split(ExecutionRuntimeServices executionRuntimeServices, Long stepPosition, String executionPlanId){
        executionRuntimeServices.addBranch(stepPosition, executionPlanId, new HashMap());
	}
	@SuppressWarnings("unused")
    public void splitWithContext(ExecutionRuntimeServices executionRuntimeServices,
								 Map executionContext,
								 String flowUuid,
								 Map context,
								 List inputKeysFromParentContext){
		Map initialContext = new HashMap<>();
		initialContext.putAll(context);

		if (inputKeysFromParentContext != null) {
			for (String inputKey : inputKeysFromParentContext) {
				initialContext.put(inputKey, executionContext.get(inputKey));
			}
		}

		executionRuntimeServices.addBranch(0L, flowUuid, initialContext);
    }
	@SuppressWarnings("unused")
    public void join(ExecutionRuntimeServices executionRuntimeServices,Map executionContext){
        List branches = executionRuntimeServices.getFinishedChildBranchesData();
        for (EndBranchDataContainer branch : branches) {
            Map branchContext  = branch.getContexts();
            executionContext.putAll(branchContext);
        }
    }
	@SuppressWarnings("unused")
	public void joinBranches(ExecutionRuntimeServices executionRuntimeServices, Map executionContext){
		List branches = executionRuntimeServices.getFinishedChildBranchesData();
		List> branchResults = new ArrayList<>();

		for (EndBranchDataContainer branch : branches) {
			Map branchContext  = branch.getContexts();
			branchResults.add(branchContext);
		}
		executionContext.put(BRANCH_RESULTS, (Serializable) branchResults);
	}

	@SuppressWarnings("unused")
    public void parallelSplit(ExecutionRuntimeServices executionRuntimeServices, Long stepPosition, String executionPlanId){
        executionRuntimeServices.addBranch(stepPosition, executionPlanId, new HashMap());
        executionRuntimeServices.addBranch(stepPosition, executionPlanId, new HashMap());
    }
	@SuppressWarnings("unused")
	public void multiInstanceWithContext(ExecutionRuntimeServices executionRuntimeServices, Long stepPosition, String executionPlanId, Map executionContext){

		@SuppressWarnings("unchecked") List> branchContexts =  (List>) executionContext.get(BRANCH_CONTEXTS);
		for(Map currentBranchContext : branchContexts){
			executionRuntimeServices.addBranch(stepPosition, executionPlanId, currentBranchContext);
		}
	}

	@SuppressWarnings("unused")
	public void parallelSplitWithContext(ExecutionRuntimeServices executionRuntimeServices, Long stepPosition, List parallelExecutionPlanIds, Map executionContext){

		@SuppressWarnings("unchecked") List> branchContexts =  (List>) executionContext.get(BRANCH_CONTEXTS);
		for(int i = 0; i < parallelExecutionPlanIds.size(); ++i){
			executionRuntimeServices.addBranch(stepPosition, parallelExecutionPlanIds.get(i), branchContexts.get(i));
		}
	}

}