/**

  * Alt2XML

  * Copyright © 2014 František Kučera (frantovo.cz)

  *

  * This program is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, either version 3 of the License, or

  * (at your option) any later version.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  * GNU General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with this program. If not, see <http://www.gnu.org/licenses/>.

  */

 package cz.frantovo.alt2xml;

 import java.io.IOException;

 import java.util.HashMap;

 import java.util.Map;

 import org.xml.sax.ContentHandler;

 import org.xml.sax.DTDHandler;

 import org.xml.sax.EntityResolver;

 import org.xml.sax.ErrorHandler;

 import org.xml.sax.InputSource;

 import org.xml.sax.SAXException;

 import org.xml.sax.SAXNotRecognizedException;

 import org.xml.sax.SAXNotSupportedException;

 import org.xml.sax.XMLReader;

 /**

  * Recommended base class for all alternative format readers.

  *

  * @author Ing. František Kučera (frantovo.cz)

  */

 public abstract class AbstractAlt2XmlReader implements XMLReader {

 	private static final String PROPERTY_BASE_URL = "https://alt2xml.globalcode.info/sax-property/";

 	protected ContentHandler contentHandler;

 	protected ErrorHandler errorHandler;

 	protected DTDHandler dtdHandler;

 	protected EntityResolver entityResolver;

 	protected Map<String, Object> properties = new HashMap<>();

 	protected Map<String, Boolean> features = new HashMap<>();

 	@Override

 	public void parse(String systemId) throws IOException, SAXException {

 		parse(new InputSource(systemId));

 	}

 	@Override

 	public boolean getFeature(String name) throws SAXNotRecognizedException, SAXNotSupportedException {

 		/**

 		 * TODO:

 		 * All XMLReaders are required to recognize

 		 * the http://xml.org/sax/features/namespaces

 		 * and the http://xml.org/sax/features/namespace-prefixes feature names.

 		 */

 		Boolean feature = features.get(name);

 		return feature == null ? false : feature;

 	}

 	@Override

 	public void setFeature(String name, boolean value) throws SAXNotRecognizedException, SAXNotSupportedException {

 		/**

 		 * TODO: filtrovat – povolit jen náš jmenný prostor

 		 */

 		features.put(name, value);

 	}

 	/**

 	 *

 	 * @param readerId should be [a-z0-9] and same as specific part of the module/project name (e.g.

 	 * alt2xml-in-properties → properties)

 	 * @param propertyId should be [a-z0-9-] and unique per module/reader

 	 * @return URL

 	 */

 	protected static String constructPropertyName(String readerId, String propertyId) {

 		return PROPERTY_BASE_URL + readerId + "/" + propertyId;

 	}

 	@Override

 	public Object getProperty(String name) throws SAXNotRecognizedException, SAXNotSupportedException {

 		return properties.get(name);

 	}

 	@Override

 	public void setProperty(String name, Object value) throws SAXNotRecognizedException, SAXNotSupportedException {

 		properties.put(name, value);

 	}

 	@Override

 	public void setEntityResolver(EntityResolver entityResolver) {

 		this.entityResolver = entityResolver;

 	}

 	@Override

 	public EntityResolver getEntityResolver() {

 		return entityResolver;

 	}

 	@Override

 	public void setDTDHandler(DTDHandler dtdHandler) {

 		this.dtdHandler = dtdHandler;

 	}

 	@Override

 	public DTDHandler getDTDHandler() {

 		return dtdHandler;

 	}

 	@Override

 	public void setContentHandler(ContentHandler contentHandler) {

 		this.contentHandler = contentHandler;

 	}

 	@Override

 	public ContentHandler getContentHandler() {

 		return contentHandler;

 	}

 	@Override

 	public void setErrorHandler(ErrorHandler errorHandler) {

 		this.errorHandler = errorHandler;

 	}

 	@Override

 	public ErrorHandler getErrorHandler() {

 		return errorHandler;

 	}

 }