abstractdocumenttype.java

Java的面向对象数据库系统的源代码

/*
 * Copyright 2001 (C) MetaStuff, Ltd. All Rights Reserved.
 * 
 * This software is open source. 
 * See the bottom of this file for the licence.
 * 
 * $Id: AbstractDocumentType.java,v 1.2 2003/06/10 16:18:35 per_nyfelt Exp $
 */

package org.dom4j.tree;

import org.dom4j.DocumentType;
import org.dom4j.Element;
import org.dom4j.Visitor;

import java.io.IOException;
import java.io.Writer;
import java.util.Iterator;
import java.util.List;

/** <p><code>AbstractDocumentType</code> is an abstract base class for 
  * tree implementors to use for implementation inheritence.</p>
  *
  * @author <a href="mailto:[e-mail]">James Strachan</a>
  * @version $Revision: 1.2 $
  */
public abstract class AbstractDocumentType extends AbstractNode implements DocumentType {

    public AbstractDocumentType() {
    }
    
    public short getNodeType() {
        return DOCUMENT_TYPE_NODE;
    }

    public String getName() {
        return getElementName();
    }
    
    public void setName(String name) {
        setElementName(name);
    }
    
    public String getPath(Element context) {
        // not available in XPath
        return "";
    }

    public String getUniquePath(Element context) {
        // not available in XPath
        return "";
    }

    /** Returns the text format of the declarations if applicable, or the empty String */
    public String getText() {
        List list = getInternalDeclarations();
        if ( list != null && list.size() > 0 ) {
            StringBuffer buffer = new StringBuffer();
            Iterator iter = list.iterator(); 
            if ( iter.hasNext() ) {
                Object decl = iter.next();
                buffer.append( decl.toString() );
                while ( iter.hasNext() ) {
                    decl = iter.next();
                    buffer.append( "\n" );
                    buffer.append( decl.toString() );
                }
            }
            return buffer.toString();
        }
        return "";
    }
    public String toString() {
        return super.toString() + " [DocumentType: " + asXML() + "]";
    }

    public String asXML() {
        StringBuffer buffer = new StringBuffer( "<!DOCTYPE " );
        buffer.append( getElementName() );
        
        boolean hasPublicID = false;
        String publicID = getPublicID();
        
        if ( publicID != null && publicID.length() > 0 ) {
            buffer.append( " PUBLIC \"" );
            buffer.append( publicID );
            buffer.append( "\"" );
            hasPublicID = true;
        }
        
        String systemID = getSystemID();
        if ( systemID != null && systemID.length() > 0 ) {
            if (!hasPublicID) {
                buffer.append(" SYSTEM");
            }
            buffer.append( " \"" );
            buffer.append( systemID );
            buffer.append( "\"" );
        }
        buffer.append(">");
        return buffer.toString();
    }
    
    public void write(Writer writer) throws IOException {
        writer.write( "<!DOCTYPE " );
        writer.write( getElementName() );
        
        boolean hasPublicID = false;
        String publicID = getPublicID();
        
        if ( publicID != null && publicID.length() > 0 ) {
            writer.write( " PUBLIC \"" );
            writer.write( publicID );
            writer.write( "\"" );
            hasPublicID = true;
        }
        
        String systemID = getSystemID();
        if ( systemID != null && systemID.length() > 0 ) {
            if (!hasPublicID) {
                writer.write(" SYSTEM");
            }
            writer.write( " \"" );
            writer.write( systemID );
            writer.write( "\"" );
        }
        List list = getInternalDeclarations();
        if ( list != null && list.size() > 0 ) {
            writer.write( " [" );
            for ( Iterator iter = list.iterator(); iter.hasNext(); ) {
                Object decl = iter.next();
                writer.write( "\n  " );
                writer.write( decl.toString() );
            }
            writer.write( "\n]" );
        }
        writer.write(">");
    }
    
    public void accept(Visitor visitor) {
        visitor.visit(this);
    }
}






/*
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided
 * that the following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright
 *    statements and notices.  Redistributions must also contain a
 *    copy of this document.
 *
 * 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 name "DOM4J" must not be used to endorse or promote
 *    products derived from this Software without prior written
 *    permission of MetaStuff, Ltd.  For written permission,
 *    please contact [e-mail].
 *
 * 4. Products derived from this Software may not be called "DOM4J"
 *    nor may "DOM4J" appear in their names without prior written
 *    permission of MetaStuff, Ltd. DOM4J is a registered
 *    trademark of MetaStuff, Ltd.
 *
 * 5. Due credit should be given to the DOM4J Project
 *    (http://dom4j.org/).
 *
 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * METASTUFF, LTD. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Copyright 2001 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * $Id: AbstractDocumentType.java,v 1.2 2003/06/10 16:18:35 per_nyfelt Exp $
 */