use POILogger instead of System.err in hslf records. If users want verbose output they should explicitly enable it through -Dorg.apache.poi.util.POILogger option. P.S. I think this should be done through the whole HSLF, i.e. no direct calls of System.out and Sysrtem.err

git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@527820 13f79535-47bb-0310-9956-ffa450edef68

src/scratchpad/src/org/apache/poi/hslf/record/Document.java

@@ -19,6 +19,8 @@
 
 package org.apache.poi.hslf.record;
 
+import org.apache.poi.util.POILogger;
+
 import java.io.IOException;
 import java.io.OutputStream;
 
@@ -132,10 +134,10 @@ public class Document extends PositionDependentRecordContainer
 		//  (normally it's 2, or 3 if you have notes)
 		// Complain if it's not
 		if(slwtcount == 0) {
-			System.err.println("No SlideListWithText's found - there should normally be at least one!");
+			logger.log(POILogger.WARN, "No SlideListWithText's found - there should normally be at least one!");
 		}
 		if(slwtcount > 3) {
-			System.err.println("Found " + slwtcount + " SlideListWithTexts - normally there should only be three!");
+			logger.log(POILogger.WARN, "Found " + slwtcount + " SlideListWithTexts - normally there should only be three!");
 		}
 		
 		// Now grab all the SLWTs

src/scratchpad/src/org/apache/poi/hslf/record/FontCollection.java

@@ -19,6 +19,8 @@
 package org.apache.poi.hslf.record;
 
 import org.apache.poi.util.LittleEndian;
+import org.apache.poi.util.POILogger;
+
 import java.io.*;
 import java.util.*;
 
@@ -47,7 +49,7 @@ public class FontCollection extends RecordContainer {
 	            FontEntityAtom atom = (FontEntityAtom)_children[i];
 	            fonts.add(atom.getFontName());
 			} else {
-				System.err.println("Warning: FontCollection child wasn't a FontEntityAtom, was " + _children[i]);
+				logger.log(POILogger.WARN, "Warning: FontCollection child wasn't a FontEntityAtom, was " + _children[i]);
 			}
 		}
 	}

src/scratchpad/src/org/apache/poi/hslf/record/PPDrawing.java

@@ -20,6 +20,7 @@
 package org.apache.poi.hslf.record;
 
 import org.apache.poi.util.LittleEndian;
+import org.apache.poi.util.POILogger;
 
 import org.apache.poi.ddf.*;
 import org.apache.poi.hslf.model.ShapeTypes;
@@ -128,7 +129,7 @@ public class PPDrawing extends RecordAtom
 		// Wind on
 		int size = r.getRecordSize();
 		if(size < 8) {
-			System.err.println("Hit short DDF record at " + startPos + " - " + size);
+			logger.log(POILogger.WARN, "Hit short DDF record at " + startPos + " - " + size);
 		}
 		startPos += size;
 		lenToGo -= size;

src/scratchpad/src/org/apache/poi/hslf/record/PersistPtrHolder.java

@@ -20,6 +20,8 @@
 package org.apache.poi.hslf.record;
 
 import org.apache.poi.util.LittleEndian;
+import org.apache.poi.util.POILogger;
+
 import java.io.IOException;
 import java.io.OutputStream;
 import java.util.Enumeration;
@@ -193,8 +195,8 @@ public class PersistPtrHolder extends PositionDependentRecordAtom
 			Integer newPos = (Integer)oldToNewReferencesLookup.get(oldPos);
 
 			if(newPos == null) {
-				System.err.println("Couldn't find the new location of the \"slide\" with id " + id + " that used to be at " + oldPos);
+				logger.log(POILogger.WARN, "Couldn't find the new location of the \"slide\" with id " + id + " that used to be at " + oldPos);
-				System.err.println("Not updating the position of it, you probably won't be able to find it any more (if you ever could!)");
+				logger.log(POILogger.WARN, "Not updating the position of it, you probably won't be able to find it any more (if you ever could!)");
 				newPos = oldPos;
 			}
 

src/scratchpad/src/org/apache/poi/hslf/record/Record.java

@@ -24,6 +24,8 @@ import java.io.IOException;
 import java.io.OutputStream;
 import java.util.Vector;
 import org.apache.poi.util.LittleEndian;
+import org.apache.poi.util.POILogger;
+import org.apache.poi.util.POILogFactory;
 import org.apache.poi.hslf.exceptions.CorruptPowerPointFileException;
 
 
@@ -37,6 +39,9 @@ import org.apache.poi.hslf.exceptions.CorruptPowerPointFileException;
 
 public abstract class Record
 {
+    // For logging
+    protected POILogger logger = POILogFactory.getLogger(this.getClass());
+
 	/**
 	 * Is this record type an Atom record (only has data),
 	 *  or is it a non-Atom record (has other records)?

src/scratchpad/src/org/apache/poi/hslf/record/StyleTextPropAtom.java

@@ -25,6 +25,8 @@ import org.apache.poi.hslf.model.textproperties.CharFlagsTextProp;
 import org.apache.poi.hslf.model.textproperties.TextProp;
 import org.apache.poi.hslf.model.textproperties.TextPropCollection;
 import org.apache.poi.util.LittleEndian;
+import org.apache.poi.util.POILogger;
+
 import java.io.IOException;
 import java.io.OutputStream;
 import java.io.ByteArrayOutputStream;
@@ -265,7 +267,7 @@ public class StyleTextPropAtom extends RecordAtom
 
 		}
         if (rawContents.length > 0 && textHandled != (size+1)){
-            System.err.println("Problem reading paragraph style runs: textHandled = " + textHandled + ", text.size+1 = " + (size+1));
+            logger.log(POILogger.WARN, "Problem reading paragraph style runs: textHandled = " + textHandled + ", text.size+1 = " + (size+1));
         }
 
 		// Now do the character stylings
@@ -300,7 +302,7 @@ public class StyleTextPropAtom extends RecordAtom
 			}
 		}
         if (rawContents.length > 0 && textHandled != (size+1)){
-            System.err.println("Problem reading character style runs: textHandled = " + textHandled + ", text.size+1 = " + (size+1));
+            logger.log(POILogger.WARN, "Problem reading character style runs: textHandled = " + textHandled + ", text.size+1 = " + (size+1));
         }
 
 		// Handle anything left over