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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.pojo;

import java.lang.reflect.Method;
import java.util.Calendar;

import org.joda.time.format.DateTimeFormatter;
import org.joda.time.format.ISODateTimeFormat;
import org.openrdf.model.Literal;

/*
 * #%L
 * Konig Core
 * %%
 * Copyright (C) 2015 - 2016 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.Value;
import org.openrdf.model.ValueFactory;
import org.openrdf.model.impl.ValueFactoryImpl;
import org.openrdf.model.vocabulary.XMLSchema;

import io.konig.core.util.StringUtil;

public class BeanUtil {

	private static DateTimeFormatter dateTimeFormatter = ISODateTimeFormat.dateTime();
	
	public static String setterName(URI predicate) {
		StringBuilder builder = new StringBuilder();
		String localName = predicate.getLocalName();
		if (localName.startsWith("is") && localName.length()>2 && Character.isUpperCase(localName.charAt(2))) {
			localName = localName.substring(2);
		}
		builder.append("set");
		builder.append(StringUtil.capitalize(localName));
		
		return builder.toString();
	}
	
	
	
	public static String adderName(URI predicate) {
		StringBuilder builder = new StringBuilder();
		builder.append("add");
		builder.append(StringUtil.capitalize(predicate.getLocalName()));
		
		return builder.toString();
	}
	
	public static String getterName(URI predicate) {
		StringBuilder builder = new StringBuilder();
		String localName = predicate.getLocalName();
		builder.append("get");
		builder.append(StringUtil.capitalize(localName));
		
		return builder.toString();
	}
	
	public static Value toValue(Object object)  {
		ValueFactory valueFactory = ValueFactoryImpl.getInstance();

		if (object instanceof URI) {
			URI uri = (URI) object;
			return uri;
		}
		if (object instanceof String) {
			return valueFactory.createLiteral(object.toString());
		}
		if (object instanceof Integer) {
			return valueFactory.createLiteral((Integer)object);
		}
		if (object instanceof Calendar) {
			Calendar calendar = (Calendar) object;
			String value = dateTimeFormatter.print(calendar.getTimeInMillis());
			return valueFactory.createLiteral(value, XMLSchema.DATETIME);
		}
		
		if (object instanceof Enum) {
			try {
				Method getURI = object.getClass().getMethod("getURI");
				if (URI.class.isAssignableFrom(getURI.getReturnType())) {
					return (URI) getURI.invoke(object);
				}
			} catch (Throwable e) {
				// Ignore
			}
		}
		
		
		return null;
	}

}