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1   package net.sourceforge.jenesis4java.impl;
2   
3   /*
4    * #%L
5    * Jenesis 4 Java Code Generator
6    * %%
7    * Copyright (C) 2000 - 2015 jenesis4java
8    * %%
9    * This program is free software: you can redistribute it and/or modify
10   * it under the terms of the GNU Lesser General Public License as
11   * published by the Free Software Foundation, either version 3 of the
12   * License, or (at your option) any later version.
13   * 
14   * This program is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17   * GNU General Lesser Public License for more details.
18   * 
19   * You should have received a copy of the GNU General Lesser Public
20   * License along with this program.  If not, see
21   * <http://www.gnu.org/licenses/lgpl-3.0.html>.
22   * #L%
23   */
24  
25  import java.io.*;
26  
27  import net.sourceforge.jenesis4java.CodeWriter;
28  import net.sourceforge.jenesis4java.CompilationUnit;
29  import net.sourceforge.jenesis4java.CompilationUnitEncoder;
30  import net.sourceforge.jenesis4java.impl.MDeclaration.MCompilationUnit;
31  
32  import static java.nio.charset.StandardCharsets.UTF_8;
33  
34  public class BasicCompilationUnitEncoder implements CompilationUnitEncoder {
35  
36      @Override
37      public void encode(CompilationUnit compilationUnit) {
38  
39          // wrap this section for io exceptions
40          PrintWriter fout = null;
41  
42          // Make a file object which corresponds to the
43          // filename which we will write to.
44          File file = new File(((MCompilationUnit) compilationUnit).getFileName());
45  
46          // Get the parent file such that we can create the
47          // directory if necessary. NOTE: JDK1.2 dependency
48          // here.
49          File dir = file.getParentFile();
50  
51          try {
52  
53              // Make sure it exists.
54              if (!dir.exists() && !dir.mkdirs()) {
55                  throw new RuntimeException("Could not create directory(s) " + dir.getCanonicalPath());
56              }
57  
58              // now we want to make the stream...
59              Writer fileWriter = new OutputStreamWriter(new FileOutputStream(file), UTF_8);
60              fout = new PrintWriter(new BufferedWriter(fileWriter));
61  
62              // ...wrap it with a code writer...
63              CodeWriter out = new MCodeWriter(fout);
64  
65              // ...generate the code...
66              compilationUnit.toCode(out);
67  
68              // ... and finally close and drop the stream
69              fout.close();
70              fout = null;
71  
72          } catch (IOException ioex) {
73              ioex.printStackTrace();
74          } finally {
75              if (fout != null) {
76                  try {
77                      fout.close();
78                  } catch (Exception ex) {
79                      throw new RuntimeException(ex);
80                  }
81              }
82          }
83      }
84  
85  }