SubstitutedFileXPathBasedConfigItem


1   /*
2    * All content copyright (c) 2003-2006 Terracotta, Inc., except as may otherwise be noted in a separate copyright notice.  All rights reserved.
3    */
4   package com.tc.config.schema.dynamic;
5   
6   import org.apache.xmlbeans.XmlObject;
7   
8   import com.tc.config.schema.context.ConfigContext;
9   
10  import java.io.File  ;
11  
12  /**
13   * A {@link com.tc.config.schema.dynamic.FileXPathBasedConfigItem} that uses the
14   * {@link com.tc.config.schema.dynamic.ParameterSubstituter} to substitute values before processing.
15   */
16  public class SubstitutedFileXPathBasedConfigItem extends FileXPathBasedConfigItem {
17  
18    public SubstitutedFileXPathBasedConfigItem(ConfigContext context, String   xpath, File   relativeTo) {
19      super(context, xpath, relativeTo);
20    }
21  
22    public SubstitutedFileXPathBasedConfigItem(ConfigContext context, String   xpath) {
23      super(context, xpath);
24    }
25  
26    protected Object   fetchDataFromXmlObject(XmlObject xmlObject) {
27      String   theString = (String  ) super.fetchDataFromXmlObjectByReflection(xmlObject, "getStringValue");
28      if (theString == null || theString.trim().length() == 0) return null;
29      String   substituted = ParameterSubstituter.substitute(theString);
30  
31      File   out = new File  (substituted);
32      if (relativeTo() != null && !out.isAbsolute()) out = new File  (relativeTo(), substituted);
33      return out;
34    }
35  
36  }
37

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