    001    // Copyright 2007, 2011 The Apache Software Foundation
    002    //
    003    // Licensed under the Apache License, Version 2.0 (the "License");
    004    // you may not use this file except in compliance with the License.
    005    // You may obtain a copy of the License at
    006    //
    007    //     http://www.apache.org/licenses/LICENSE-2.0
    008    //
    009    // Unless required by applicable law or agreed to in writing, software
    010    // distributed under the License is distributed on an "AS IS" BASIS,
    011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012    // See the License for the specific language governing permissions and
    013    // limitations under the License.
    014
    015    package org.apache.tapestry5.dom;
    016
    017    import org.apache.tapestry5.ioc.internal.util.InternalUtils;
    018
    019    import java.io.PrintWriter;
    020
    021    /**
    022     * Representation of a document type. Note that technically, a Doctype isn't a node in an xml document; hence this
    023     * doesn't extend node.
    024     */
    025    public class DTD
    026    {
    027        private final String name;
    028
    029        private final String publicId;
    030
    031        private final String systemId;
    032
    033        public DTD(String name, String publicId, String systemId)
    034        {
    035            assert InternalUtils.isNonBlank(name);
    036
    037            this.name = name;
    038            this.publicId = publicId;
    039            this.systemId = systemId;
    040        }
    041
    042        public void toMarkup(PrintWriter writer)
    043        {
    044            if (publicId != null)
    045            {
    046                if (systemId != null)
    047                {
    048                    writer.printf("<!DOCTYPE %s PUBLIC \"%s\" \"%s\">", name, publicId, systemId);
    049                } else
    050                {
    051                    writer.printf("<!DOCTYPE %s PUBLIC \"%s\">", name, publicId);
    052                }
    053            } else if (systemId != null)
    054            {
    055                writer.printf("<!DOCTYPE %s SYSTEM \"%s\">", name, systemId);
    056            } else
    057            {
    058                writer.printf("<!DOCTYPE %s>", name);
    059            }
    060        }
    061    }