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1   ////////////////////////////////////////////////////////////////////////////////
2   // MillScript: an Open Spice interpreter and batch website creation tool
3   // Copyright (C) 2001-2004 Open World Ltd
4   //
5   // This file is part of MillScript.
6   //
7   // MillScript is free software; you can redistribute it and/or modify it under
8   // the terms of the GNU General Public License as published by the Free
9   // Software Foundation; either version 2 of the License, or (at your option)
10  // any later version.
11  //
12  // MillScript is distributed in the hope that it will be useful, but WITHOUT
13  // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
15  // more details.
16  //
17  // You should have received a copy of the GNU General Public License along with
18  // MillScript; if not, write to the Free Software Foundation, Inc., 59 Temple
19  // Place, Suite 330, Boston, MA  02111-1307  USA
20  ////////////////////////////////////////////////////////////////////////////////
21  package org.millscript.millscript.loaders;
22  
23  import org.millscript.commons.vfs.VFile;
24  import org.millscript.millscript.alert.Alerts;
25  
26  import java.io.IOException;
27  
28  /**
29   * This class implements the MillScript text loader. The contents of the file
30   * are read and then bound, as a string, to the symbol registered with this
31   * loader.
32   */
33  public final class TextLoader extends AbsTextLoader {
34  
35      /**
36       * @see org.millscript.millscript.loaders.Loader#loadValue()
37       */
38      @Override
39      public Object loadValue() throws IOException {
40          if ( this.entry instanceof VFile && this.entry.exists() ) {
41              return readAll( ((VFile) entry).getReader() );
42          } else {
43              throw(
44                  Alerts.compile(
45                      "Inventory entry is not a file",
46                      "Text loader can only be used to load files"
47                  ).culprit( "entry", this.entry ).mishap()
48              );
49          }
50      }
51  
52  }