Accept or Reject detected changes
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GroupDocs.Comparison allows you to apply or discard specific changes between source and target documents and save output document with (or without) selected changes.
To apply/reject changes to output document, follow these steps:
- Instantiate the Comparer object. Specify the source document path or stream.
- Call the add() method. Specify the target document path or stream.
- Call the compare() method.
- Call the getChanges() method to get changes list.
- Call the setComparisonAction() method of the appropriate change object. Specify the ComparisonAction.ACCEPT or the ComparisonAction.REJECT value.
- Call the applyChanges() method. Specify the collection of changes.
The ApplyChangeOptions class includes the following properties:
- getChanges is a list of changes that must be applied (or not) to the output document
- isSaveOriginalState is an option to reep the original state of the compared result after applying changes
The following code snippets show how to accept/reject changes:
try (Comparer comparer = new Comparer(sourceFile)) {
comparer.add(targetFile);
final Path resultPath = comparer.compare();
ChangeInfo[] changes = comparer.getChanges();
changes[0].setComparisonAction(ComparisonAction.REJECT);
comparer.applyChanges(resultFile, new SaveOptions(), new ApplyChangeOptions(changes));
}
The result is as follows:
Accepted changes | Rejected changes |
---|---|
try (Comparer comparer = new Comparer(sourceInputStream)) {
comparer.add(targetInputStream);
final Path resultPath = comparer.compare(new SaveOptions(), new CompareOptions());
ChangeInfo[] changes = comparer.getChanges();
changes[0].setComparisonAction(ComparisonAction.REJECT);
comparer.applyChanges(resultOutputStream, new ApplyChangeOptions(changes));
}
try (Comparer comparer = new Comparer(sourceFile)) {
comparer.add(targetFile);
final Path resultPath = comparer.compare();
ChangeInfo[] changes = comparer.getChanges();
changes[0].setComparisonAction(ComparisonAction.REJECT);
ApplyChangeOptions changeOptions = new ApplyChangeOptions();
changeOptions.setChanges(changes);
changeOptions.setSaveOriginalState(true);
comparer.applyChanges(resultFileWithRejectedChange, changeOptions);
changes = comparer.getChanges();
changes[0].setComparisonAction(ComparisonAction.ACCEPT);
comparer.applyChanges(resultFileWithAcceptedChange, new ApplyChangeOptions(changes));
}
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