Application: gvSIG desktop

package org.gvsig.export.spi;

import java.text.DateFormat;

import java.text.SimpleDateFormat;

import java.util.Date;

import org.gvsig.export.ExportAttributes;

import org.gvsig.export.ExportLocator;

import org.gvsig.fmap.dal.exception.DataException;

import org.gvsig.fmap.dal.feature.FeatureStore;

import org.gvsig.fmap.dal.feature.FeatureType;

import org.gvsig.export.ExportParameters;

import org.gvsig.expressionevaluator.Expression;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.persistence.PersistenceManager;

import org.gvsig.tools.persistence.PersistentState;

import org.gvsig.tools.persistence.exception.PersistenceException;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 *

 * @author jjdelcerro

 */

public abstract class AbstractExportParameters implements ExportParameters {

    private FeatureStore sourceFeatureStore;

    private Expression filterExpression;

    private int featuresToUse;

    private Object context;

    protected ExportAttributes exportAttributes = null;

    private Date date = new Date();

    public ExportServiceFactory factory;

    protected static final Logger LOGGER = LoggerFactory.getLogger(AbstractExportParameters.class);

    public AbstractExportParameters(ExportServiceFactory factory) {

        this.factory = factory;

        this.exportAttributes = ExportLocator.getServiceManager().createExportAttributes();

    }

    @Override

    public boolean needsSelectTargetProjection() {

        return false;

    }

    @Override

    public FeatureType getSourceFeatureType() {

        if (!(this.exportAttributes == null)) {

            return this.exportAttributes.getSourceFeatureType();

        } else {

            return null;

        }

    }

    @Override

    public void setSourceFeatureType(FeatureType sourceFeatureType) {

        this.exportAttributes.setSourceFeatureType(sourceFeatureType);

    }

    @Override

    public void setSourceFeatureStore(FeatureStore sourceFeatureStore) {

        this.sourceFeatureStore = sourceFeatureStore;

        try {

            FeatureType sourceFeatureType = sourceFeatureStore.getDefaultFeatureType();

            this.exportAttributes.setSourceFeatureType(sourceFeatureType);

        } catch (DataException ex) {

            throw new RuntimeException("Can't set feature type", ex);

        }

    }

    @Override

    public FeatureStore getSourceFeatureStore() {

        return this.sourceFeatureStore;

    }

    @Override

    public Expression getFilterExpresion() {

        return this.filterExpression;

    }

    @Override

    public void setFilterExpresion(Expression expression) {

        this.filterExpression = expression;

    }

    @Override

    public int getFeaturesToUse() {

        return featuresToUse;

    }

    @Override

    public void setFeaturesToUse(int featuresToUse) {

        this.featuresToUse = featuresToUse;

    }

    @Override

    public Object getContext() {

        return context;

    }

    @Override

    public void setContext(Object context) {

        this.context = context;

    }

    @Override

    public ExportAttributes getExportAttributes() {

        return this.exportAttributes;

    }

    @Override

    public void setExportAttributes(ExportAttributes export) {

        this.exportAttributes = export;

    }

    @Override

    public ExportParameters clone() throws CloneNotSupportedException {

        ExportParameters clone = (ExportParameters) super.clone();

        if (this.filterExpression != null) {

            clone.setFilterExpresion(this.filterExpression.clone());

        }

        if (this.exportAttributes != null) {

            clone.setExportAttributes(this.exportAttributes.clone());

        }

        return clone;

    }

    @Override

    public Date getCreationDate() {

        return this.date;

    }

    public void setCreationDate(Date date) {

        this.date = date;

    }

    @Override

    public String getLabel() {

        StringBuilder builder = new StringBuilder();

        DateFormat df = new SimpleDateFormat("dd/MM/yy HH:mm:ss");

        String dateName;

        dateName = df.format(this.getCreationDate());

        builder.append(dateName);

        builder.append(": ");

        String serviceName;

        if (this.getServiceName() != null) {

            serviceName = this.getServiceName();

        } else {

            serviceName = "Null service";

        }

        builder.append(serviceName);

        if (this.getSourceFeatureStore() != null) {

            String storeName = this.getSourceFeatureStore().getName();

            builder.append(" - ");

            builder.append(storeName);

        }

        return builder.toString();

    }

    @Override

    public Object getValue() {

        return this;

    }

    @Override

    public String toString() {

        return this.getLabel();

    }

    @Override

    public ExportServiceFactory getFactory() {

        return this.factory;

    }

    @Override

    public FeatureType getTargetFeatureType() {

        if (this.getExportAttributes() == null) {

            LOGGER.warn("Not been able to get target feature type from export attributes because it's null");

            return null;

        }

        return this.getExportAttributes().getTargetFeatureType();

    }

    public static void registerPersistence() {

        PersistenceManager manager = ToolsLocator.getPersistenceManager();

        if (manager.getDefinition("AbstractExportParameters") == null) {

            DynStruct definition = manager.addDefinition(AbstractExportParameters.class,

                    "AbstractExportParameters", "AbstractExportParameters persistence definition", null, null);

            definition.addDynFieldInt("featuresToUse").setMandatory(false);

            definition.addDynFieldObject("filterExpression").setClassOfValue(Expression.class).setMandatory(false);

            definition.addDynFieldObject("exportAttributes").setClassOfValue(ExportAttributes.class).setMandatory(false);

            definition.addDynFieldDate("dateCreation").setMandatory(false);

            definition.addDynFieldString("factory");

        }

    }

    public void saveToState(PersistentState state) throws PersistenceException {

        state.set("featuresToUse", this.featuresToUse);

        state.set("filterExpression", this.filterExpression);

        state.set("exportAttributes", this.exportAttributes);

        state.set("dateCreation", this.date);

        state.set("factory", this.factory.getName());

    }

    public void loadFromState(PersistentState state) throws PersistenceException {

        this.featuresToUse = state.getInt("featuresToUse");

        this.filterExpression = (Expression) state.get("filterExpression");

        this.exportAttributes = (ExportAttributes) state.get("exportAttributes");

        this.date = state.getDate("dateCreation");

        String nameFactory = state.getString("factory");

        ExportServiceFactory statefactory = ExportLocator.getServiceManager().getServiceFactory(nameFactory);

        this.factory = statefactory;

    }

}