On Biff5 files, include the sheet name. (Older formats are single sheet)

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1642563 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/poi/hssf/extractor/OldExcelExtractor.java

@@ -30,6 +30,7 @@ import org.apache.poi.hssf.record.FormulaRecord;
 import org.apache.poi.hssf.record.NumberRecord;
 import org.apache.poi.hssf.record.OldFormulaRecord;
 import org.apache.poi.hssf.record.OldLabelRecord;
+import org.apache.poi.hssf.record.OldSheetRecord;
 import org.apache.poi.hssf.record.OldStringRecord;
 import org.apache.poi.hssf.record.RKRecord;
 import org.apache.poi.hssf.record.RecordInputStream;
@@ -140,6 +141,15 @@ public class OldExcelExtractor {
             ris.nextRecord();
 
             switch (sid) {
+                // Biff 5+ only, no sheet names in older formats
+                case OldSheetRecord.sid:
+                    OldSheetRecord shr = new OldSheetRecord(ris);
+                    shr.setCodePage(codepage);
+                    text.append("Sheet: ");
+                    text.append(shr.getSheetname());
+                    text.append('\n');
+                    break;
+            
                 // label - 5.63 - TODO Needs codepages
                 case OldLabelRecord.biff2_sid:
                 case OldLabelRecord.biff345_sid:

src/java/org/apache/poi/hssf/record/OldSheetRecord.java

@@ -0,0 +1,82 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+==================================================================== */
+
+package org.apache.poi.hssf.record;
+
+import org.apache.poi.util.HexDump;
+
+/**
+ * Title:        Bound Sheet Record (aka BundleSheet) (0x0085) for BIFF 5<P>
+ * Description:  Defines a sheet within a workbook.  Basically stores the sheet name
+ *               and tells where the Beginning of file record is within the HSSF
+ *               file.
+ */
+public final class OldSheetRecord {
+    public final static short sid = 0x0085;
+
+    private int field_1_position_of_BOF;
+    private int field_2_visibility;
+    private int field_3_type;
+    private byte[] field_5_sheetname;
+    private CodepageRecord codepage;
+
+    public OldSheetRecord(RecordInputStream in) {
+        field_1_position_of_BOF = in.readInt();
+        field_2_visibility = in.readUByte();
+        field_3_type = in.readUByte();
+        int field_4_sheetname_length = in.readUByte();
+        field_5_sheetname = new byte[field_4_sheetname_length];
+        in.read(field_5_sheetname, 0, field_4_sheetname_length);
+    }
+
+    public void setCodePage(CodepageRecord codepage) {
+        this.codepage = codepage;
+    }
+
+    public short getSid() {
+        return sid;
+    }
+
+    /**
+     * get the offset in bytes of the Beginning of File Marker within the HSSF Stream part of the POIFS file
+     *
+     * @return offset in bytes
+     */
+    public int getPositionOfBof() {
+        return field_1_position_of_BOF;
+    }
+
+    /**
+     * get the sheetname for this sheet.  (this appears in the tabs at the bottom)
+     * @return sheetname the name of the sheet
+     */
+    public String getSheetname() {
+        return OldStringRecord.getString(field_5_sheetname, codepage);
+    }
+
+    public String toString() {
+        StringBuffer buffer = new StringBuffer();
+
+        buffer.append("[BOUNDSHEET]\n");
+        buffer.append("    .bof        = ").append(HexDump.intToHex(getPositionOfBof())).append("\n");
+        buffer.append("    .visibility = ").append(HexDump.shortToHex(field_2_visibility)).append("\n");
+        buffer.append("    .type       = ").append(HexDump.byteToHex(field_3_type)).append("\n");
+        buffer.append("    .sheetname  = ").append(getSheetname()).append("\n");
+        buffer.append("[/BOUNDSHEET]\n");
+        return buffer.toString();
+    }
+}

src/java/org/apache/poi/hssf/record/OldStringRecord.java

@@ -80,8 +80,7 @@ public final class OldStringRecord {
         try {
             return CodePageUtil.getStringFromCodePage(data, cp);
         } catch (UnsupportedEncodingException uee) {
-            // Hope the system default is ok...
-            return new String(data);
+            throw new IllegalArgumentException("Unsupported codepage requested", uee);
         }
     }
 

src/testcases/org/apache/poi/hssf/extractor/TestOldExcelExtractor.java

@@ -66,6 +66,9 @@ public final class TestOldExcelExtractor extends POITestCase {
             // Check we find a few numbers we expect in there
             assertContains(text, "15");
             assertContains(text, "169");
+            
+            // Check we got the sheet names (new formats only)
+            assertContains(text, "Sheet: Feuil3");
         }
     }