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    1   /*
    2    * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
    3    *
    4    * This software is open source.
    5    * See the bottom of this file for the licence.
    6    */
    7
    8   package org.dom4j.util;
    9
    10  import java.util.Map;
    11
    12  import org.dom4j.Attribute;
    13  import org.dom4j.CDATA;
    14  import org.dom4j.Comment;
    15  import org.dom4j.Document;
    16  import org.dom4j.DocumentFactory;
    17  import org.dom4j.DocumentType;
    18  import org.dom4j.Element;
    19  import org.dom4j.Entity;
    20  import org.dom4j.Namespace;
    21  import org.dom4j.NodeFilter;
    22  import org.dom4j.ProcessingInstruction;
    23  import org.dom4j.QName;
    24  import org.dom4j.Text;
    25  import org.dom4j.XPath;
    26  import org.dom4j.rule.Pattern;
    27
    28  import org.jaxen.VariableContext;
    29
    30  /***
    31   * <p>
    32   * <code>ProxyDocumentFactory</code> implements a proxy to a DocumentFactory
    33   * which is useful for implementation inheritence, allowing the pipelining of
    34   * various factory implementations. For example an EncodingDocumentFactory which
    35   * takes care of encoding strings outside of allowable XML ranges could be used
    36   * with a DatatypeDocumentFactory which is XML Schema Data Type aware.
    37   * </p>
    38   *
    39   * @author <a href="mailto:jstrachan@apache.org">James Strachan </a>
    40   * @version $Revision: 1.13 $
    41   */
    42  public abstract class ProxyDocumentFactory {
    43      private DocumentFactory proxy;
    44
    45      public ProxyDocumentFactory() {
    46          // use default factory
    47          this.proxy = DocumentFactory.getInstance();
    48      }
    49
    50      public ProxyDocumentFactory(DocumentFactory proxy) {
    51          this.proxy = proxy;
    52      }
    53
    54      // Factory methods
    55      // -------------------------------------------------------------------------
    56      public Document createDocument() {
    57          return proxy.createDocument();
    58      }
    59
    60      public Document createDocument(Element rootElement) {
    61          return proxy.createDocument(rootElement);
    62      }
    63
    64      public DocumentType createDocType(String name, String publicId,
    65              String systemId) {
    66          return proxy.createDocType(name, publicId, systemId);
    67      }
    68
    69      public Element createElement(QName qname) {
    70          return proxy.createElement(qname);
    71      }
    72
    73      public Element createElement(String name) {
    74          return proxy.createElement(name);
    75      }
    76
    77      public Attribute createAttribute(Element owner, QName qname, String value) {
    78          return proxy.createAttribute(owner, qname, value);
    79      }
    80
    81      public Attribute createAttribute(Element owner, String name, String value) {
    82          return proxy.createAttribute(owner, name, value);
    83      }
    84
    85      public CDATA createCDATA(String text) {
    86          return proxy.createCDATA(text);
    87      }
    88
    89      public Comment createComment(String text) {
    90          return proxy.createComment(text);
    91      }
    92
    93      public Text createText(String text) {
    94          return proxy.createText(text);
    95      }
    96
    97      public Entity createEntity(String name, String text) {
    98          return proxy.createEntity(name, text);
    99      }
    100
    101     public Namespace createNamespace(String prefix, String uri) {
    102         return proxy.createNamespace(prefix, uri);
    103     }
    104
    105     public ProcessingInstruction createProcessingInstruction(String target,
    106             String data) {
    107         return proxy.createProcessingInstruction(target, data);
    108     }
    109
    110     public ProcessingInstruction createProcessingInstruction(String target,
    111             Map data) {
    112         return proxy.createProcessingInstruction(target, data);
    113     }
    114
    115     public QName createQName(String localName, Namespace namespace) {
    116         return proxy.createQName(localName, namespace);
    117     }
    118
    119     public QName createQName(String localName) {
    120         return proxy.createQName(localName);
    121     }
    122
    123     public QName createQName(String name, String prefix, String uri) {
    124         return proxy.createQName(name, prefix, uri);
    125     }
    126
    127     public QName createQName(String qualifiedName, String uri) {
    128         return proxy.createQName(qualifiedName, uri);
    129     }
    130
    131     public XPath createXPath(String xpathExpression) {
    132         return proxy.createXPath(xpathExpression);
    133     }
    134
    135     public XPath createXPath(String xpathExpression,
    136             VariableContext variableContext) {
    137         return proxy.createXPath(xpathExpression, variableContext);
    138     }
    139
    140     public NodeFilter createXPathFilter(String xpathFilterExpression,
    141             VariableContext variableContext) {
    142         return proxy.createXPathFilter(xpathFilterExpression, variableContext);
    143     }
    144
    145     public NodeFilter createXPathFilter(String xpathFilterExpression) {
    146         return proxy.createXPathFilter(xpathFilterExpression);
    147     }
    148
    149     public Pattern createPattern(String xpathPattern) {
    150         return proxy.createPattern(xpathPattern);
    151     }
    152
    153     // Implementation methods
    154     // -------------------------------------------------------------------------
    155     protected DocumentFactory getProxy() {
    156         return proxy;
    157     }
    158
    159     protected void setProxy(DocumentFactory proxy) {
    160         if (proxy == null) {
    161             // use default factory
    162             proxy = DocumentFactory.getInstance();
    163         }
    164
    165         this.proxy = proxy;
    166     }
    167 }
    168
    169 /*
    170  * Redistribution and use of this software and associated documentation
    171  * ("Software"), with or without modification, are permitted provided that the
    172  * following conditions are met:
    173  *
    174  * 1. Redistributions of source code must retain copyright statements and
    175  * notices. Redistributions must also contain a copy of this document.
    176  *
    177  * 2. Redistributions in binary form must reproduce the above copyright notice,
    178  * this list of conditions and the following disclaimer in the documentation
    179  * and/or other materials provided with the distribution.
    180  *
    181  * 3. The name "DOM4J" must not be used to endorse or promote products derived
    182  * from this Software without prior written permission of MetaStuff, Ltd. For
    183  * written permission, please contact dom4j-info@metastuff.com.
    184  *
    185  * 4. Products derived from this Software may not be called "DOM4J" nor may
    186  * "DOM4J" appear in their names without prior written permission of MetaStuff,
    187  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
    188  *
    189  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
    190  *
    191  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
    192  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    193  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    194  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
    195  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    196  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    197  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    198  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    199  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    200  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    201  * POSSIBILITY OF SUCH DAMAGE.
    202  *
    203  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
    204  */