AbstractSLDBuilder.java

package org.geotools.styling.builder;

import org.geotools.Builder;
import org.geotools.factory.CommonFactoryFinder;
import org.geotools.styling.Style;
import org.geotools.styling.StyleFactory;
import org.geotools.styling.StyledLayerDescriptor;
import org.opengis.filter.FilterFactory2;

abstract class AbstractSLDBuilder<T> implements Builder<T> {

    protected StyleFactory sf = CommonFactoryFinder.getStyleFactory(null);

    protected AbstractSLDBuilder<?> parent;

    protected static final FilterFactory2 FF = CommonFactoryFinder.getFilterFactory2(null);

    protected boolean unset = false;

    public AbstractSLDBuilder(AbstractSLDBuilder<?> parent) {
        this.parent = parent;
    }

    public StyledLayerDescriptor buildSLD() {
        if (parent != null) {
            return parent.buildSLD();
        } else {
            StyledLayerDescriptorBuilder sb = new StyledLayerDescriptorBuilder();
            buildSLDInternal(sb);
            return sb.buildSLD();
        }
    }

    public Object buildRoot() {
        if (parent != null) {
            return parent.build();
        } else {
            return build();
        }
    }

    protected abstract void buildSLDInternal(StyledLayerDescriptorBuilder sb);

    protected void init(Builder<T> other) {
        reset(other.build());
    }

    public AbstractSLDBuilder<T> unset() {
        reset();
        unset = true;
        return this;
    }

    boolean isUnset() {
        return unset;
    }
}