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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.execution;

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

import org.bonitasoft.engine.core.process.definition.model.SFlowElementContainerDefinition;
import org.bonitasoft.engine.core.process.definition.model.SFlowNodeDefinition;
import org.bonitasoft.engine.core.process.definition.model.SProcessDefinition;
import org.bonitasoft.engine.core.process.definition.model.SSubProcessDefinition;

/**
 * @author Elias Ricken de Medeiros
 */
public class FlowNodeSelector implements Serializable {

    private final Filter selector;
    private final SProcessDefinition definition;
    private long subProcessDefinitionId = -1;

    public boolean isEventSubProcess() {
        return subProcessDefinitionId > 0;
    }

    public FlowNodeSelector(SProcessDefinition definition, Filter filter) {
        this.definition = definition;
        this.selector = filter;
    }

    public FlowNodeSelector(SProcessDefinition definition, Filter filter,
            final long subProcessDefinitionId) {
        this(definition, filter);
        this.subProcessDefinitionId = subProcessDefinitionId;
    }

    public List getFilteredElements() {
        SFlowElementContainerDefinition container = getContainer();
        ArrayList selectedFlowNodes = new ArrayList<>();
        for (SFlowNodeDefinition flowNodeDefinition : container.getFlowNodes()) {
            if (selector.mustSelect(flowNodeDefinition)) {
                selectedFlowNodes.add(flowNodeDefinition);
            }
        }
        return selectedFlowNodes;
    }

    public SFlowElementContainerDefinition getContainer() {
        if (subProcessDefinitionId == -1) {
            return definition.getProcessContainer();
        }
        final SSubProcessDefinition subProcDef = (SSubProcessDefinition) definition.getProcessContainer()
                .getFlowNode(subProcessDefinitionId);
        return subProcDef.getSubProcessContainer();
    }

    public SProcessDefinition getProcessDefinition() {
        return definition;
    }

    public long getSubProcessDefinitionId() {
        return subProcessDefinitionId;
    }

}