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package org.gvsig.fmap.dal.feature.spi;

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

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

import org.gvsig.fmap.dal.feature.impl.DefaultFeatureType;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.primitive.Envelope;

public class DefaultFeatureData implements FeatureData {

        protected DefaultFeatureType featureType;

        protected boolean[] nulls;

        protected Object[] values;

        protected Geometry defaultGeometry;

        protected Envelope envelope;

        private Object oid;

        public DefaultFeatureData(FeatureType type) {

                if (type instanceof EditableFeatureType) {

                        throw new IllegalArgumentException("type can't by editable.");

                }

                this.featureType = (DefaultFeatureType) type;

                this.values = new Object[featureType.size()];

                this.nulls = new boolean[featureType.size()];

        }

        public void set(int i, Object value) {

                if (featureType.getDefaultGeometryAttributeIndex() == i) {

                        defaultGeometry = (Geometry) value;

                        envelope = null;

                }

                if (value == null) {

                        nulls[i] = true;

                        values[i] = featureType.getAttributeDescriptor(i).getDefaultValue();

                } else {

                        values[i] = value;

                        nulls[i] = false;

                }

        }

        public void set(String name, Object value) {

                set(featureType.getIndex(name), value);

        }

        public Object get(int i) {

                return values[i];

        }

        public Object get(String name) {

                int i = featureType.getIndex(name);

                return values[i];

        }

        public FeatureType getType() {

                return featureType;

        }

        public FeatureData getCopy() {

                DefaultFeatureData data = new DefaultFeatureData(

                                this.getType());

                return getCopy(data);

        }

        protected FeatureData getCopy(DefaultFeatureData data) {

                data.oid = this.oid;

                System.arraycopy(this.values, 0, data.values, 0, this.values.length);

                data.defaultGeometry = this.defaultGeometry;

                data.envelope = this.envelope;

                return data;

        }

        public Envelope getDefaultEnvelope() {

                if (envelope == null) {

                        envelope = defaultGeometry.getEnvelope();

                }

                return envelope;

        }

        public Geometry getDefaultGeometry() {

                return this.defaultGeometry;

        }

        public void setDefaultEnvelope(Envelope envelope) {

                this.envelope = envelope;

        }

        public void setDefaultGeometry(Geometry geom) {

                int i = featureType.getDefaultGeometryAttributeIndex();

                defaultGeometry = geom;

                envelope = null;

                values[i] = geom;

        }

        public boolean isNull(int i) {

                return nulls[i];

        }

        public boolean isNull(String name) {

                int i = featureType.getIndex(name);

                return isNull(i);

        }

        public Object getOID() {

                return this.oid;

        }

        public void setOID(Object oid) {

                this.oid = oid;

        }

}