we check now if the parent article is allowed for publication while adding a child...

[mir.git] / source / mircoders / localizer / basic / MirBasicWriterEngine.java

diff --git a/source/mircoders/localizer/basic/MirBasicWriterEngine.java b/source/mircoders/localizer/basic/MirBasicWriterEngine.java
index 34cac2b..f746623 100755 (executable)
--- a/source/mircoders/localizer/basic/MirBasicWriterEngine.java
+++ b/source/mircoders/localizer/basic/MirBasicWriterEngine.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2001, 2002  The Mir-coders group
+ * Copyright (C) 2001, 2002 The Mir-coders group
  *
  * This file is part of Mir.
  *
@@ -18,61 +18,119 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
  * In addition, as a special exception, The Mir-coders gives permission to link
- * the code of this program with the com.oreilly.servlet library, any library
- * licensed under the Apache Software License, The Sun (tm) Java Advanced
- * Imaging library (JAI), The Sun JIMI library (or with modified versions of
- * the above that use the same license as the above), and distribute linked
- * combinations including the two.  You must obey the GNU General Public
- * License in all respects for all of the code used other than the above
- * mentioned libraries.  If you modify this file, you may extend this exception
- * to your version of the file, but you are not obligated to do so.  If you do
- * not wish to do so, delete this exception statement from your version.
+ * the code of this program with  any library licensed under the Apache Software License,
+ * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
+ * (or with modified versions of the above that use the same license as the above),
+ * and distribute linked combinations including the two.  You must obey the
+ * GNU General Public License in all respects for all of the code used other than
+ * the above mentioned libraries.  If you modify this file, you may extend this
+ * exception to your version of the file, but you are not obligated to do so.
+ * If you do not wish to do so, delete this exception statement from your version.
  */
-
 package mircoders.localizer.basic;
 
-import java.util.*;
-import java.io.*;
-import mir.generator.*;
-import mircoders.localizer.*;
+import mir.config.MirPropertiesConfiguration;
+import mir.generator.WriterEngine;
+import mir.log.LoggerWrapper;
+import mir.util.FileRoutines;
+import mircoders.localizer.MirLocalizerFailure;
+
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
+import java.io.Writer;
 
 public class MirBasicWriterEngine implements WriterEngine {
   private String defaultEncoding;
 
+  protected static LoggerWrapper logger = new LoggerWrapper("Localizer.WriterEngine");
+  protected MirPropertiesConfiguration configuration = MirPropertiesConfiguration.instance();
+
+  /**
+   * Directory to store temp files into
+   */
+  private File tempDirectory;
+
   public MirBasicWriterEngine(String aDefaultEncoding) {
     defaultEncoding = aDefaultEncoding;
+    tempDirectory = configuration.getFile("TempDir");
   }
 
+  /**
+   * {@inheritDoc}
+   */
   public Object openWriter(String anIdentifier, String anEncoding) throws MirLocalizerFailure {
     String encoding;
-    File file;
-    File dir;
 
-    if (anEncoding!=null && !anEncoding.equals(""))
+    if (anEncoding != null && !anEncoding.equals("")) {
       encoding = anEncoding;
-    else
+    }
+    else {
       encoding = defaultEncoding;
-//      MirGlobal.getConfigProperty("Mir.DefaultEncoding");
+    }
 
-    try {
-      file = new File( anIdentifier );
-      dir = new File(file.getParent());
-        if (dir!=null && !dir.exists()){
-          dir.mkdirs();
-      }
+    File destinationFile = new File(anIdentifier);
 
+    File destinationDirectory  = destinationFile.getParentFile();
+
+    if (destinationDirectory != null && !destinationDirectory.exists()) {
+      destinationDirectory.mkdirs();
+    }
+
+    try {
       return new PrintWriter(
-        new OutputStreamWriter(
-          new FileOutputStream(file), encoding
-        )
+          new TempWriter(destinationFile, encoding)
       );
     }
-    catch (Throwable t) {
-      throw new MirLocalizerFailure("Failure while opening a PrintWriter: "+t.getMessage(),t);
+    catch (IOException t) {
+      throw new MirLocalizerFailure("Failure while opening a writer", t);
     }
-  };
+  }
 
   public void closeWriter(Object aWriter) {
     ((PrintWriter) aWriter).close();
-  };
+  }
+
+  private class TempWriter extends Writer {
+    TempWriter(File aDestination, String anEncoding) throws IOException {
+      destinationFile = aDestination;
+      slaveFile = File.createTempFile("Mir", ".generated", tempDirectory);
+      slaveFile.deleteOnExit();
+      slaveWriter = new BufferedWriter(
+          new OutputStreamWriter(
+            new FileOutputStream(slaveFile), anEncoding
+      ), 8192);
+    }
+
+    public void close() throws IOException {
+      slaveWriter.close();
+
+      try {
+        FileRoutines.move(slaveFile, destinationFile);
+
+        slaveFile.delete();
+      }
+      catch (Throwable e) {
+        System.out.println("error: " + e.toString());
+
+        throw new IOException(e.getMessage());
+      }
+    }
+
+    public void flush() throws IOException {
+      slaveWriter.flush();
+    }
+
+    public void write(char cbuf[], int off, int len) throws IOException {
+      slaveWriter.write(cbuf, off, len);
+    }
+
+    private Writer slaveWriter;
+    private File slaveFile;
+    private File destinationFile;
+  }
+
 }
\ No newline at end of file