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class DefaultPreview implements PreviewContext, PreviewEmitter {
// implementation for methods, emit, getEmittedRecords, getLogs and getMetrics.
}
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@Singleton
class PreviewHelper {
Map<PreviewId, DefaultPreview> previewIdToDefaultPreview;
PreviewEmitter getPreviewEmitter(PreviewId identifier) {
// create DefaultPreview for identifier in previewIdToDefaultPreview and return if doesn't exist already, else get and return.
}
PreviewContext getPreviewContext(PreviewId identifier) {
// create DefaultPreview for identifier in previewIdToDefaultPreview and return if doesn't exist already, else get and return.
}
} |
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