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A library for core classes (Graph, Vertex, Edge, etc.)

There is a newer version: 2.11.0

package io.konig.core.showl;

/*
 * #%L
 * Konig Core
 * %%
 * Copyright (C) 2015 - 2019 Gregory McFall
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */


import java.util.ArrayList;
import java.util.Set;

import org.openrdf.model.URI;

import io.konig.core.OwlReasoner;

/**
 * An expression that has multiple alternatives based on different sources that must
 * "overlay" on top of each other.
 * @author Greg McFall
 *
 */
@SuppressWarnings("serial")
public class ShowlOverlayExpression extends ArrayList implements ShowlExpression, ShowlStatement {

	public ShowlOverlayExpression() {
		// TODO Auto-generated constructor stub
	}

	@Override
	public ShowlExpression transform() {
		
		ShowlOverlayExpression copy = new ShowlOverlayExpression();
		for (ShowlExpression e : this) {
			copy.add(e.transform());
		}
		return copy;
	}
	
	@Override
	public boolean add(ShowlExpression e) {
		if (e instanceof ShowlDelegationExpression) {
			return false;
		}
		if (e instanceof ShowlEnumPropertyExpression) {
			throw new IllegalArgumentException("Enum property expressions are forbidden in an overlay expression: " + e.displayValue());
		}
		return super.add(e);
	}

	@Override
	public String displayValue() {
		StringBuilder builder = new StringBuilder();
		builder.append("Overlay(");
		String comma = "";
		for (ShowlExpression e : this) {
			builder.append(comma);
			comma = ", ";
			builder.append(e.displayValue());
		}
		
		builder.append(")");
		return builder.toString();
	}

	@Override
	public void addDeclaredProperties(ShowlNodeShape sourceNodeShape, Set set)
			throws ShowlProcessingException {
		for (ShowlExpression e : this) {
			e.addDeclaredProperties(sourceNodeShape, set);
		}

	}

	@Override
	public void addProperties(Set set) {
		
		for (ShowlExpression e : this) {
			e.addProperties(set);
		}

	}

	@Override
	public URI valueType(OwlReasoner reasoner) {
		// We assume that all expressions have the same value type
		// Is this a safe assumption?
		return get(0).valueType(reasoner);
	}

}