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Posted to commits@pdfbox.apache.org by le...@apache.org on 2015/05/27 20:20:17 UTC

svn commit: r1682091 - in /pdfbox/trunk/pdfbox/src: main/java/org/apache/pdfbox/io/RandomAccessBuffer.java test/java/org/apache/pdfbox/io/TestRandomAccessBuffer.java

Author: lehmi
Date: Wed May 27 18:20:17 2015
New Revision: 1682091

URL: http://svn.apache.org/r1682091
Log:
PDFBOX-2811: fixed another corner case concerning the currentBufferPointer, added junit test

Modified:
    pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/io/RandomAccessBuffer.java
    pdfbox/trunk/pdfbox/src/test/java/org/apache/pdfbox/io/TestRandomAccessBuffer.java

Modified: pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/io/RandomAccessBuffer.java
URL: http://svn.apache.org/viewvc/pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/io/RandomAccessBuffer.java?rev=1682091&r1=1682090&r2=1682091&view=diff
==============================================================================
--- pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/io/RandomAccessBuffer.java (original)
+++ pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/io/RandomAccessBuffer.java Wed May 27 18:20:17 2015
@@ -203,6 +203,7 @@ public class RandomAccessBuffer implemen
                 nextBuffer();
                 System.arraycopy(currentBuffer, 0, b, newOffset, CHUNK_SIZE);
                 newOffset += CHUNK_SIZE;
+                currentBufferPointer = CHUNK_SIZE;
             }
             remainingBytes2Read = remainingBytes2Read % CHUNK_SIZE;
             // are there still some bytes to be read?
@@ -210,7 +211,7 @@ public class RandomAccessBuffer implemen
             {
                 nextBuffer();
                 System.arraycopy(currentBuffer, 0, b, newOffset, (int)remainingBytes2Read);
-                currentBufferPointer += remainingBytes2Read;
+                currentBufferPointer = remainingBytes2Read;
             }
         }
         else

Modified: pdfbox/trunk/pdfbox/src/test/java/org/apache/pdfbox/io/TestRandomAccessBuffer.java
URL: http://svn.apache.org/viewvc/pdfbox/trunk/pdfbox/src/test/java/org/apache/pdfbox/io/TestRandomAccessBuffer.java?rev=1682091&r1=1682090&r2=1682091&view=diff
==============================================================================
--- pdfbox/trunk/pdfbox/src/test/java/org/apache/pdfbox/io/TestRandomAccessBuffer.java (original)
+++ pdfbox/trunk/pdfbox/src/test/java/org/apache/pdfbox/io/TestRandomAccessBuffer.java Wed May 27 18:20:17 2015
@@ -31,7 +31,7 @@ public class TestRandomAccessBuffer exte
     private static final int CHUNK_SIZE = 1024;
     
     /**
-     * This test checks a corner case where the last read ends
+     * This test checks two corner cases where the last read ends
      * exactly at the end of a chunck (remainingBytes == 0)
      * @throws IOException
      */
@@ -53,6 +53,24 @@ public class TestRandomAccessBuffer exte
         // check the values read from the second chunk
         assertEquals(2, byteArray[0]+byteArray[1]);
         buffer.close();
+
+        buffer = new RandomAccessBuffer();
+        byteArray = new byte[2*CHUNK_SIZE + 2];
+        // fill the second chunk with "1"
+        for (int i = 0; i < CHUNK_SIZE; i++)
+        {
+            byteArray[CHUNK_SIZE + i] = 1;
+        }
+        // fill the third chunk with "2"
+        for (int i = 0; i < 2; i++)
+        {
+            byteArray[2*CHUNK_SIZE + i] = 2;
+        }
+        buffer.write(byteArray, 0, byteArray.length);
+        buffer.seek(700);
+        byte[] bytesRead = new byte[1348];
+        buffer.read(bytesRead, 0, bytesRead.length);
+        assertEquals(2, buffer.read());
     }
 
     /**