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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.expression;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.bonitasoft.engine.business.data.BusinessDataRetriever;
import org.bonitasoft.engine.business.data.RefBusinessDataRetriever;
import org.bonitasoft.engine.commons.Container;
import org.bonitasoft.engine.commons.exceptions.SBonitaException;
import org.bonitasoft.engine.core.expression.control.model.SExpressionContext;
import org.bonitasoft.engine.core.process.instance.api.exceptions.SFlowNodeReadException;
import org.bonitasoft.engine.core.process.instance.model.business.data.SRefBusinessDataInstance;
import org.bonitasoft.engine.expression.exception.SExpressionEvaluationException;
import org.bonitasoft.engine.expression.model.ExpressionKind;
import org.bonitasoft.engine.expression.model.SExpression;
import org.bonitasoft.engine.operation.BusinessDataContext;
import org.bonitasoft.engine.persistence.SBonitaReadException;

/**
 * @author Colin Puy
 * @author Emmanuel Duchastenier
 * @author Celine Souchet
 * @author Matthieu Chaffotte
 */
public class BusinessDataExpressionExecutorStrategy extends CommonBusinessDataExpressionExecutorStrategy {

    private final RefBusinessDataRetriever refBusinessDataRetriever;

    private final BusinessDataRetriever businessDataRetriever;

    public BusinessDataExpressionExecutorStrategy(final RefBusinessDataRetriever refBusinessDataRetriever, BusinessDataRetriever businessDataRetriever) {
        super();
        this.refBusinessDataRetriever = refBusinessDataRetriever;
        this.businessDataRetriever = businessDataRetriever;
    }

    @Override
    public ExpressionKind getExpressionKind() {
        return KIND_BUSINESS_DATA;
    }

    @Override
    public Object evaluate(final SExpression expression, final Map context, final Map resolvedExpressions,
                           final ContainerState containerState) throws SExpressionEvaluationException {
        final String businessDataName = expression.getContent();
        if (context.containsKey(businessDataName)) {
            return context.get(businessDataName);
        }
        final Long containerId = (Long) context.get(SExpressionContext.CONTAINER_ID_KEY);
        final String containerType = (String) context.get(SExpressionContext.CONTAINER_TYPE_KEY);
        try {
            final SRefBusinessDataInstance refBusinessDataInstance = refBusinessDataRetriever.getRefBusinessDataInstance(new BusinessDataContext(
                    businessDataName, new Container(containerId, containerType)));
            return businessDataRetriever.getBusinessData(refBusinessDataInstance);
        } catch (final SBonitaReadException | SFlowNodeReadException e) {
            throw new SExpressionEvaluationException("Unable to retrieve business data instance with name " + businessDataName, e, businessDataName);
        } catch (final SBonitaException e) {
            setProcessInstanceId(containerId, containerType, e);
            throw new SExpressionEvaluationException(e, expression.getName());
        }
    }

    @Override
    public List