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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.util;

import java.io.StringReader;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.List;

import org.openrdf.model.Literal;

/*
 * #%L
 * Konig Core
 * %%
 * Copyright (C) 2015 - 2017 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 org.openrdf.model.URI;
import org.openrdf.model.impl.LiteralImpl;
import org.openrdf.model.impl.URIImpl;
import org.openrdf.model.vocabulary.XMLSchema;

import io.konig.core.Context;
import io.konig.core.KonigException;
import io.konig.core.Term;
import io.konig.core.io.PrettyPrintWriter;
import io.konig.rio.turtle.IriTemplateParseException;
import io.konig.rio.turtle.IriTemplateParser;

public class IriTemplate extends SimpleValueFormat {
	
	private Context context;
	
	public IriTemplate(Context context, String text) {
		super(text);
		this.context = context;
	}
	
	public IriTemplate() {
		
	}
	
	public IriTemplate(String text) {
		super();
		parse(text);
	}
	
	@Override
	public IriTemplate clone() {
		IriTemplate other = new IriTemplate();
		// TODO: perform a deep clone of the context instead of sharing
		other.context = context;
		other.elements = new ArrayList<>();
		for (ValueFormat.Element e : toList()) {
			other.elements.add(  (SimpleValueFormat.Element)e.clone()  );
		}
		return other;
	}

	private void parse(String input) {
		input = input.trim();
		int c = input.charAt(0);
		if (c == '@' || c=='<') {
			StringReader reader = new StringReader(input);
			try {
				IriTemplate self = IriTemplateParser.INSTANCE.parse(reader);
				context = self.getContext();
				text = self.getText();
				compile();
			} catch (IriTemplateParseException e) {
				throw new KonigException(e);
			}
		} else {
			text = input;
			compile();
		}
		
	}
	
	@Override
	public boolean equals(Object other) {
		if (other instanceof IriTemplate) {
			IriTemplate t = (IriTemplate) other;
			List aList = toList();
			List bList = t.toList();
			
			if (aList.size() != bList.size()) {
				return false;
			}
			
			for (int i=0; i list = context.asList();
			
			out.indent();
			out.print("@context {");
			out.pushIndent();
			String comma = "";
			for (Term term : list) {
				out.println(comma);
				term.print(out);
				comma = ",";
			}
			out.popIndent();
			out.println();
			out.indent();
			out.println('}');
			out.println();
		}
		out.indent();
		out.print('<');
		out.print(text);
		out.print('>');
	}

	public int variablesCount() {
		int count = 0;
		for (ValueFormat.Element e : toList()) {
			if (e.getType() == ValueFormat.ElementType.VARIABLE) {
				count++;
			}
		}
		return count;
	}
	
}