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/**
 * Copyright (C) 2019 Bonitasoft S.A.
 * Bonitasoft, 32 rue Gustave Eiffel - 38000 Grenoble
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation
 * version 2.1 of the License.
 * This library 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 Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
 * Floor, Boston, MA 02110-1301, USA.
 **/
package org.bonitasoft.engine.api.impl.resolver;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.bonitasoft.engine.bpm.bar.BusinessArchive;
import org.bonitasoft.engine.bpm.bar.BusinessArchiveBuilder;
import org.bonitasoft.engine.bpm.process.Problem;
import org.bonitasoft.engine.bpm.process.Problem.Level;
import org.bonitasoft.engine.bpm.process.impl.internal.ProblemImpl;
import org.bonitasoft.engine.commons.exceptions.SBonitaException;
import org.bonitasoft.engine.commons.exceptions.SObjectModificationException;
import org.bonitasoft.engine.core.process.definition.model.SParameterDefinition;
import org.bonitasoft.engine.core.process.definition.model.SProcessDefinition;
import org.bonitasoft.engine.exception.CreationException;
import org.bonitasoft.engine.parameter.OrderBy;
import org.bonitasoft.engine.parameter.ParameterService;
import org.bonitasoft.engine.parameter.SParameter;
import org.bonitasoft.engine.parameter.SParameterProcessNotFoundException;
import org.bonitasoft.engine.persistence.SBonitaReadException;

/**
 * @author Baptiste Mesta
 * @author Matthieu Chaffotte
 * @author Celine Souchet
 */
public class ParameterBusinessArchiveArtifactManager implements BusinessArchiveArtifactManager {

    private final ParameterService parameterService;

    public ParameterBusinessArchiveArtifactManager(ParameterService parameterService) {
        this.parameterService = parameterService;
    }

    @Override
    public boolean deploy(final BusinessArchive businessArchive, final SProcessDefinition processDefinition)
            throws CreationException {
        final Set declaredParameters = processDefinition.getParameters();
        boolean resolved = true;
        if (declaredParameters.isEmpty()) {
            return true;
        }
        final Map defaultParameterValues = businessArchive.getParameters();
        final Map storedParameters = new HashMap<>();
        for (final SParameterDefinition sParameterDefinition : declaredParameters) {
            final String name = sParameterDefinition.getName();
            final String value = defaultParameterValues.get(sParameterDefinition.getName());
            if (value == null) {
                resolved = false;
            }
            storedParameters.put(name, value);
        }
        try {
            parameterService.addAll(processDefinition.getId(), storedParameters);
        } catch (SBonitaException e) {
            throw new CreationException(e);
        }
        return resolved;
    }

    @Override
    public List checkResolution(final SProcessDefinition processDefinition) {
        if (processDefinition.getParameters().isEmpty()) {
            return Collections.emptyList();
        }
        int NUMBER_OF_RESULT = 100;
        List parameters;
        final ArrayList problems = new ArrayList<>();
        int i = 0;
        do {
            try {
                parameters = parameterService.getNullValues(processDefinition.getId(), i, NUMBER_OF_RESULT,
                        OrderBy.NAME_ASC);
            } catch (final SBonitaException e) {
                return Collections
                        .singletonList(new ProblemImpl(Level.ERROR, null, "parameter", "Unable to get parameter !!"));
            }
            i += NUMBER_OF_RESULT;
            for (final SParameter parameter : parameters) {
                if (parameter.getValue() == null) {
                    final Problem problem = new ProblemImpl(Level.ERROR, null, "parameter",
                            "Parameter '" + parameter.getName() + "' is not set.");
                    problems.add(problem);
                }
            }
        } while (parameters.size() == NUMBER_OF_RESULT);
        return problems;
    }

    @Override
    public void delete(SProcessDefinition processDefinition) throws SObjectModificationException {
        try {
            parameterService.deleteAll(processDefinition.getId());
        } catch (SParameterProcessNotFoundException | SBonitaReadException e) {
            throw new SObjectModificationException(
                    "Unable to delete parameters of the process definition <" + processDefinition.getName() + ">", e);
        }
    }

    @Override
    public void exportToBusinessArchive(long processDefinitionId, BusinessArchiveBuilder businessArchiveBuilder)
            throws SBonitaException {
        final List sParameter = parameterService.get(processDefinitionId, 0, Integer.MAX_VALUE, null);
        Map map = new HashMap<>();
        for (SParameter parameter : sParameter) {
            map.put(parameter.getName(), parameter.getValue());
        }
        businessArchiveBuilder.setParameters(map);
    }

}