| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2000-2002 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xerces" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
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| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 1999, International |
| * Business Machines, Inc., http://www.apache.org. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| package com.sun.org.apache.xerces.internal.impl.dtd; |
| |
| import java.util.ArrayList; |
| import java.util.Vector; |
| |
| import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarDescription; |
| import com.sun.org.apache.xerces.internal.xni.XMLResourceIdentifier; |
| import com.sun.org.apache.xerces.internal.xni.parser.XMLInputSource; |
| import com.sun.org.apache.xerces.internal.util.XMLResourceIdentifierImpl; |
| |
| /** |
| * All information specific to DTD grammars. |
| * |
| * @xerces.internal |
| * |
| * @author Neil Graham, IBM |
| * @version $Id: XMLDTDDescription.java,v 1.4 2010/08/11 07:18:38 joehw Exp $ |
| */ |
| public class XMLDTDDescription extends XMLResourceIdentifierImpl |
| implements com.sun.org.apache.xerces.internal.xni.grammars.XMLDTDDescription { |
| |
| // Data |
| |
| // pieces of information needed to make this usable as a Grammar key |
| // if we know the root of this grammar, here's its name: |
| protected String fRootName = null; |
| |
| // if we don't know the root name, this stores all elements that |
| // could serve; fPossibleRoots and fRootName cannot both be non-null |
| protected ArrayList fPossibleRoots = null; |
| |
| // Constructors: |
| public XMLDTDDescription(XMLResourceIdentifier id, String rootName) { |
| this.setValues(id.getPublicId(), id.getLiteralSystemId(), |
| id.getBaseSystemId(), id.getExpandedSystemId()); |
| this.fRootName = rootName; |
| this.fPossibleRoots = null; |
| } // init(XMLResourceIdentifier, String) |
| |
| public XMLDTDDescription(String publicId, String literalId, |
| String baseId, String expandedId, String rootName) { |
| this.setValues(publicId, literalId, baseId, expandedId); |
| this.fRootName = rootName; |
| this.fPossibleRoots = null; |
| } // init(String, String, String, String, String) |
| |
| public XMLDTDDescription(XMLInputSource source) { |
| this.setValues(source.getPublicId(), null, |
| source.getBaseSystemId(), source.getSystemId()); |
| this.fRootName = null; |
| this.fPossibleRoots = null; |
| } // init(XMLInputSource) |
| |
| // XMLGrammarDescription methods |
| |
| public String getGrammarType () { |
| return XMLGrammarDescription.XML_DTD; |
| } // getGrammarType(): String |
| |
| /** |
| * @return the root name of this DTD or null if root name is unknown |
| */ |
| public String getRootName() { |
| return fRootName; |
| } // getRootName(): String |
| |
| /** Set the root name **/ |
| public void setRootName(String rootName) { |
| fRootName = rootName; |
| fPossibleRoots = null; |
| } |
| |
| /** Set possible roots **/ |
| public void setPossibleRoots(ArrayList possibleRoots) { |
| fPossibleRoots = possibleRoots; |
| } |
| |
| /** Set possible roots **/ |
| public void setPossibleRoots(Vector possibleRoots) { |
| fPossibleRoots = (possibleRoots != null) ? new ArrayList(possibleRoots) : null; |
| } |
| |
| /** |
| * Compares this grammar with the given grammar. Currently, we compare |
| * as follows: |
| * - if grammar type not equal return false immediately |
| * - try and find a common root name: |
| * - if both have roots, use them |
| * - else if one has a root, examine other's possible root's for a match; |
| * - else try all combinations |
| * - test fExpandedSystemId and fPublicId as above |
| * |
| * @param desc The description of the grammar to be compared with |
| * @return True if they are equal, else false |
| */ |
| public boolean equals(Object desc) { |
| if (!(desc instanceof XMLGrammarDescription)) return false; |
| if (!getGrammarType().equals(((XMLGrammarDescription)desc).getGrammarType())) { |
| return false; |
| } |
| // assume it's a DTDDescription |
| XMLDTDDescription dtdDesc = (XMLDTDDescription)desc; |
| if (fRootName != null) { |
| if ((dtdDesc.fRootName) != null && !dtdDesc.fRootName.equals(fRootName)) { |
| return false; |
| } |
| else if (dtdDesc.fPossibleRoots != null && !dtdDesc.fPossibleRoots.contains(fRootName)) { |
| return false; |
| } |
| } |
| else if (fPossibleRoots != null) { |
| if (dtdDesc.fRootName != null) { |
| if (!fPossibleRoots.contains(dtdDesc.fRootName)) { |
| return false; |
| } |
| } |
| else if (dtdDesc.fPossibleRoots == null) { |
| return false; |
| } |
| else { |
| boolean found = false; |
| final int size = fPossibleRoots.size(); |
| for (int i = 0; i < size; ++i) { |
| String root = (String) fPossibleRoots.get(i); |
| found = dtdDesc.fPossibleRoots.contains(root); |
| if (found) break; |
| } |
| if (!found) return false; |
| } |
| } |
| // if we got this far we've got a root match... try other two fields, |
| // since so many different DTD's have roots in common: |
| if (fExpandedSystemId != null) { |
| if (!fExpandedSystemId.equals(dtdDesc.fExpandedSystemId)) { |
| return false; |
| } |
| } |
| else if (dtdDesc.fExpandedSystemId != null) { |
| return false; |
| } |
| if (fPublicId != null) { |
| if (!fPublicId.equals(dtdDesc.fPublicId)) { |
| return false; |
| } |
| } |
| else if (dtdDesc.fPublicId != null) { |
| return false; |
| } |
| return true; |
| } |
| |
| /** |
| * Returns the hash code of this grammar |
| * Because our .equals method is so complex, we just return a very |
| * simple hash that might avoid calls to the equals method a bit... |
| * @return The hash code |
| */ |
| public int hashCode() { |
| if (fExpandedSystemId != null) { |
| return fExpandedSystemId.hashCode(); |
| } |
| if (fPublicId != null) { |
| return fPublicId.hashCode(); |
| } |
| // give up; hope .equals can handle it: |
| return 0; |
| } |
| } // class XMLDTDDescription |
