[Openutils-svn] SF.net SVN: openutils:[1567] trunk/openutils-mgnlmedia/src/main/java/net/ sourceforge/openutils/mgnlmedia/media/utils/ImageUtils.java

[<fg...@us...>]

Revision: 1567
          http://openutils.svn.sourceforge.net/openutils/?rev=1567&view=rev
Author:   fgiust
Date:     2009-12-30 22:44:55 +0000 (Wed, 30 Dec 2009)

Log Message:
-----------
use less memory, write to temporary files instead of byte arrays

Modified Paths:
--------------
    trunk/openutils-mgnlmedia/src/main/java/net/sourceforge/openutils/mgnlmedia/media/utils/ImageUtils.java

Modified: trunk/openutils-mgnlmedia/src/main/java/net/sourceforge/openutils/mgnlmedia/media/utils/ImageUtils.java
===================================================================
--- trunk/openutils-mgnlmedia/src/main/java/net/sourceforge/openutils/mgnlmedia/media/utils/ImageUtils.java	2009-12-30 22:31:48 UTC (rev 1566)
+++ trunk/openutils-mgnlmedia/src/main/java/net/sourceforge/openutils/mgnlmedia/media/utils/ImageUtils.java	2009-12-30 22:44:55 UTC (rev 1567)
@@ -43,9 +43,11 @@
 import java.awt.Transparency;
 import java.awt.image.BufferedImage;
 import java.awt.image.ColorModel;
+import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.text.SimpleDateFormat;
@@ -469,9 +471,12 @@
     public static InputStream getStream(BufferedImage image, String extension, float quality, boolean forceProgressive)
         throws IOException
     {
-        ByteArrayOutputStream bos = new ByteArrayOutputStream();
-        BufferedOutputStream out = new BufferedOutputStream(bos);
 
+        final File tempFile = File.createTempFile("image-", "." + extension);
+        FileOutputStream fos = new FileOutputStream(tempFile);
+
+        BufferedOutputStream out = new BufferedOutputStream(fos);
+
         try
         {
 
@@ -568,14 +573,22 @@
             throw ex;
         }
 
-        byte[] byteArray = bos.toByteArray();
-
-        if (byteArray.length == 0)
+        out.flush();
+        IOUtils.closeQuietly(out);
+        return new BufferedInputStream(new FileInputStream(tempFile)
         {
-            return null;
-        }
 
-        return new ByteArrayInputStream(byteArray);
+            /**
+             * {@inheritDoc}
+             */
+            @Override
+            public void close() throws IOException
+            {
+                tempFile.delete();
+                super.close();
+            }
+
+        });
     }
 
     /**


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