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/**
 * Copyright (C) 2015 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.operation;

import org.bonitasoft.engine.core.operation.LeftOperandHandler;
import org.bonitasoft.engine.core.process.instance.api.ActivityInstanceService;
import org.bonitasoft.engine.core.process.instance.api.exceptions.SFlowNodeNotFoundException;
import org.bonitasoft.engine.core.process.instance.api.exceptions.SFlowNodeReadException;
import org.bonitasoft.engine.core.process.instance.model.SFlowNodeInstance;
import org.bonitasoft.engine.data.instance.api.DataInstanceContainer;
import org.bonitasoft.engine.session.SessionService;
import org.bonitasoft.engine.sessionaccessor.SessionAccessor;

/**
 * @author Baptiste Mesta
 */
public abstract class AbstractDocumentLeftOperandHandler implements LeftOperandHandler {

    private final ActivityInstanceService activityInstanceService;
    private final SessionAccessor sessionAccessor;
    private final SessionService sessionService;

    public AbstractDocumentLeftOperandHandler(final ActivityInstanceService activityInstanceService, final SessionAccessor sessionAccessor,
            final SessionService sessionService) {
        this.activityInstanceService = activityInstanceService;
        this.sessionAccessor = sessionAccessor;
        this.sessionService = sessionService;
    }

    protected long getProcessInstanceId(final long containerId, final String containerType) throws SFlowNodeNotFoundException, SFlowNodeReadException {
        long processInstanceId;
        if (DataInstanceContainer.PROCESS_INSTANCE.name().equals(containerType)) {
            processInstanceId = containerId;
        } else {
            final SFlowNodeInstance flowNodeInstance = activityInstanceService.getFlowNodeInstance(containerId);
            processInstanceId = flowNodeInstance.getParentProcessInstanceId();
        }
        return processInstanceId;
    }

    protected long getAuthorId() {
        return sessionService.getLoggedUserFromSession(sessionAccessor);
    }

}