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      1 /*
      2  * Copyright (C) 2007 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package org.apache.harmony.xml.dom;
     18 
     19 import org.w3c.dom.DOMException;
     20 import org.w3c.dom.DocumentType;
     21 import org.w3c.dom.NamedNodeMap;
     22 import org.w3c.dom.Node;
     23 
     24 /**
     25  * Provides a straightforward implementation of the corresponding W3C DOM
     26  * interface. The class is used internally only, thus only notable members that
     27  * are not in the original interface are documented (the W3C docs are quite
     28  * extensive). Hope that's ok.
     29  * <p>
     30  * Some of the fields may have package visibility, so other classes belonging to
     31  * the DOM implementation can easily access them while maintaining the DOM tree
     32  * structure.
     33  */
     34 public final class DocumentTypeImpl extends LeafNodeImpl implements DocumentType {
     35 
     36     private String qualifiedName;
     37 
     38     private String publicId;
     39 
     40     private String systemId;
     41 
     42     public DocumentTypeImpl(DocumentImpl document, String qualifiedName,
     43             String publicId, String systemId) {
     44         super(document);
     45 
     46         if (qualifiedName == null || "".equals(qualifiedName)) {
     47             throw new DOMException(DOMException.NAMESPACE_ERR, qualifiedName);
     48         }
     49 
     50         int prefixSeparator = qualifiedName.lastIndexOf(":");
     51         if (prefixSeparator != -1) {
     52             String prefix = qualifiedName.substring(0, prefixSeparator);
     53             String localName = qualifiedName.substring(prefixSeparator + 1);
     54 
     55             if (!DocumentImpl.isXMLIdentifier(prefix)) {
     56                 throw new DOMException(DOMException.NAMESPACE_ERR, qualifiedName);
     57             }
     58 
     59             if (!DocumentImpl.isXMLIdentifier(localName)) {
     60                 throw new DOMException(DOMException.INVALID_CHARACTER_ERR, qualifiedName);
     61             }
     62         } else {
     63             if (!DocumentImpl.isXMLIdentifier(qualifiedName)) {
     64                 throw new DOMException(DOMException.INVALID_CHARACTER_ERR, qualifiedName);
     65             }
     66         }
     67 
     68         this.qualifiedName = qualifiedName;
     69         this.publicId = publicId;
     70         this.systemId = systemId;
     71     }
     72 
     73     @Override
     74     public String getNodeName() {
     75         return qualifiedName;
     76     }
     77 
     78     @Override
     79     public short getNodeType() {
     80         return Node.DOCUMENT_TYPE_NODE;
     81     }
     82 
     83     public NamedNodeMap getEntities() {
     84         // TODO Dummy. Implement this later, if at all (we're DOM level 2 only).
     85         return null;
     86     }
     87 
     88     public String getInternalSubset() {
     89         // TODO Dummy. Implement this later, if at all (we're DOM level 2 only).
     90         return null;
     91     }
     92 
     93     public String getName() {
     94         return qualifiedName;
     95     }
     96 
     97     public NamedNodeMap getNotations() {
     98         // TODO Dummy. Implement this later, if at all (we're DOM level 2 only).
     99         return null;
    100     }
    101 
    102     public String getPublicId() {
    103         return publicId;
    104     }
    105 
    106     public String getSystemId() {
    107         return systemId;
    108     }
    109 
    110     @Override public String getTextContent() throws DOMException {
    111         return null;
    112     }
    113 }
    114