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bug 59773: move loop invariants out of for-loop for performance, use for-each instead of for loop when possible 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1756345 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Javen O'Neal 2016-08-15 04:42:31 +00:00
parent 34a6732b01
commit e97b333ea0
1 changed files with 14 additions and 12 deletions
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26
src/scratchpad/src/org/apache/poi/hslf/extractor/PowerPointExtractor.java
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@ -257,8 +257,8 @@ public final class PowerPointExtractor extends POIOLE2TextExtractor {
// Comments, if requested and present
if (getCommentText) {
Comment[] comments = slide.getComments();
for (int j = 0; j < comments.length; j++) {
ret.append(comments[j].getAuthor() + " - " + comments[j].getText() + "\n");
for (Comment comment : slide.getComments()) {
ret.append(comment.getAuthor() + " - " + comment.getText() + "\n");
}
}
}
@ -285,8 +285,8 @@ public final class PowerPointExtractor extends POIOLE2TextExtractor {
}
for (int i = 0; i < _slides.size(); i++) {
HSLFNotes notes = _slides.get(i).getNotes();
for (HSLFSlide slide : _slides) {
HSLFNotes notes = slide.getNotes();
if (notes == null) {
continue;
}
@ -297,13 +297,13 @@ public final class PowerPointExtractor extends POIOLE2TextExtractor {
seenNotes.add(id);
// Repeat the Notes header, if set
ret.append(headerText);
ret.append(headerText);
// Notes text
textRunsToText(ret, notes.getTextParagraphs());
textRunsToText(ret, notes.getTextParagraphs());
// Repeat the notes footer, if set
ret.append(footerText);
ret.append(footerText);
}
}
@ -315,16 +315,18 @@ public final class PowerPointExtractor extends POIOLE2TextExtractor {
}
private void extractTableText(StringBuffer ret, HSLFTable table) {
for (int row = 0; row < table.getNumberOfRows(); row++){
for (int col = 0; col < table.getNumberOfColumns(); col++){
final int nrows = table.getNumberOfRows();
final int ncols = table.getNumberOfColumns();
for (int row = 0; row < nrows; row++){
for (int col = 0; col < ncols; col++){
HSLFTableCell cell = table.getCell(row, col);
//defensive null checks; don't know if they're necessary
if (cell != null){
String txt = cell.getText();
txt = (txt == null) ? "" : txt;
ret.append(txt);
if (col < table.getNumberOfColumns()-1){
ret.append("\t");
if (col < ncols-1){
ret.append('\t');
}
}
}
@ -339,7 +341,7 @@ public final class PowerPointExtractor extends POIOLE2TextExtractor {
for (List<HSLFTextParagraph> lp : paragraphs) {
ret.append(HSLFTextParagraph.getText(lp));
if (ret.length() > 0 && ret.charAt(ret.length()-1) != '\n') {
ret.append("\n");
ret.append('\n');
}
}
}