configurable max record len

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1894526 13f79535-47bb-0310-9956-ffa450edef68

poi-scratchpad/src/main/java/org/apache/poi/hslf/record/SoundData.java

@@ -34,7 +34,22 @@ public final class SoundData extends RecordAtom {
 
 
     //arbitrarily selected; may need to increase
-    private static final int MAX_RECORD_LENGTH = 100_000_000;
+    private static final int DEFAULT_MAX_RECORD_LENGTH = 100_000_000;
+    private static int MAX_RECORD_LENGTH = DEFAULT_MAX_RECORD_LENGTH;
+
+    /**
+     * @param length the max record length allowed for SoundData
+     */
+    public static void setMaxRecordLength(int length) {
+        MAX_RECORD_LENGTH = length;
+    }
+
+    /**
+     * @return the max record length allowed for SoundData
+     */
+    public static int getMaxRecordLength() {
+        return MAX_RECORD_LENGTH;
+    }
 
     /**
      * Record header.

poi-scratchpad/src/main/java/org/apache/poi/hwmf/record/HwmfText.java

@@ -49,7 +49,22 @@ import org.apache.poi.util.LocaleUtil;
 
 public class HwmfText {
     private static final Logger LOG = LogManager.getLogger(HwmfText.class);
-    private static final int MAX_RECORD_LENGTH = 1_000_000;
+    private static final int DEFAULT_MAX_RECORD_LENGTH = 1_000_000;
+    private static int MAX_RECORD_LENGTH = DEFAULT_MAX_RECORD_LENGTH;
+
+    /**
+     * @param length the max record length allowed for HwmfText
+     */
+    public static void setMaxRecordLength(int length) {
+        MAX_RECORD_LENGTH = length;
+    }
+
+    /**
+     * @return the max record length allowed for HwmfText
+     */
+    public static int getMaxRecordLength() {
+        return MAX_RECORD_LENGTH;
+    }
 
     /**
      * The META_SETTEXTCHAREXTRA record defines inter-character spacing for text justification in the

poi-scratchpad/src/main/java/org/apache/poi/hwpf/HWPFDocumentCore.java

@@ -67,7 +67,22 @@ public abstract class HWPFDocumentCore extends POIDocument {
     protected static final String STREAM_TABLE_1 = "1Table";
 
     //arbitrarily selected; may need to increase
-    private static final int MAX_RECORD_LENGTH = 500_000_000;
+    private static final int DEFAULT_MAX_RECORD_LENGTH = 500_000_000;
+    private static int MAX_RECORD_LENGTH = DEFAULT_MAX_RECORD_LENGTH;
+
+    /**
+     * @param length the max record length allowed for HWPFDocumentCore
+     */
+    public static void setMaxRecordLength(int length) {
+        MAX_RECORD_LENGTH = length;
+    }
+
+    /**
+     * @return the max record length allowed for HWPFDocumentCore
+     */
+    public static int getMaxRecordLength() {
+        return MAX_RECORD_LENGTH;
+    }
 
     /**
      * Size of the not encrypted part of the FIB

poi-scratchpad/src/main/java/org/apache/poi/hwpf/HWPFOldDocument.java

@@ -46,15 +46,29 @@ import org.apache.poi.util.NotImplemented;
 import org.apache.poi.util.StringUtil;
 
 /**
- * Provides very simple support for old (Word 6 / Word 95)
+ * Provides very simple support for old (Word 6 / Word 95) files.
- *  files.
  */
 public class HWPFOldDocument extends HWPFDocumentCore {
 
     private static final Logger LOG = LogManager.getLogger(HWPFOldDocument.class);
 
     //arbitrarily selected; may need to increase
-    private static final int MAX_RECORD_LENGTH = 10_000_000;
+    private static final int DEFAULT_MAX_RECORD_LENGTH = 10_000_000;
+    private static int MAX_RECORD_LENGTH = DEFAULT_MAX_RECORD_LENGTH;
+
+    /**
+     * @param length the max record length allowed for HWPFOldDocument
+     */
+    public static void setMaxRecordLength(int length) {
+        MAX_RECORD_LENGTH = length;
+    }
+
+    /**
+     * @return the max record length allowed for HWPFOldDocument
+     */
+    public static int getMaxRecordLength() {
+        return MAX_RECORD_LENGTH;
+    }
 
     private static final Charset DEFAULT_CHARSET = StringUtil.WIN_1252;
 

poi-scratchpad/src/main/java/org/apache/poi/hwpf/model/OldTextPieceTable.java

@@ -26,8 +26,6 @@ import org.apache.poi.util.Internal;
 
 @Internal
 public class OldTextPieceTable extends TextPieceTable {
-    //arbitrarily selected; may need to increase
-    private static final int MAX_RECORD_LENGTH = 100_000_000;
 
     public OldTextPieceTable() {
         super();
@@ -82,7 +80,7 @@ public class OldTextPieceTable extends TextPieceTable {
             int textSizeBytes = textSizeChars * multiple;
 
             // Grab the data that makes up the piece
-            byte[] buf = IOUtils.safelyClone(documentStream, start, textSizeBytes, MAX_RECORD_LENGTH);
+            byte[] buf = IOUtils.safelyClone(documentStream, start, textSizeBytes, getMaxRecordLength());
 
             // And now build the piece
             final TextPiece newTextPiece = newTextPiece(nodeStartChars, nodeEndChars, buf, pieces[x]);

poi-scratchpad/src/main/java/org/apache/poi/hwpf/model/TextPieceTable.java

@@ -36,13 +36,28 @@ import static org.apache.logging.log4j.util.Unbox.box;
 /**
  * The piece table for matching up character positions to bits of text. This
  * mostly works in bytes, but the TextPieces themselves work in characters. This
- * does the icky convertion.
+ * does the icky conversion.
  */
 @Internal
 public class TextPieceTable implements CharIndexTranslator {
     private static final Logger LOG = LogManager.getLogger(TextPieceTable.class);
     //arbitrarily selected; may need to increase
-    private static final int MAX_RECORD_LENGTH = 100_000_000;
+    private static final int DEFAULT_MAX_RECORD_LENGTH = 100_000_000;
+    private static int MAX_RECORD_LENGTH = DEFAULT_MAX_RECORD_LENGTH;
+
+    /**
+     * @param length the max record length allowed for TextPieceTable
+     */
+    public static void setMaxRecordLength(int length) {
+        MAX_RECORD_LENGTH = length;
+    }
+
+    /**
+     * @return the max record length allowed for TextPieceTable
+     */
+    public static int getMaxRecordLength() {
+        return MAX_RECORD_LENGTH;
+    }
 
 
     // int _multiple;