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TableCursor.java
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55 lines (46 loc) · 1.24 KB
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package act.cli.util;
import act.app.CliContext;
import act.cli.view.CliView;
import act.util.PropertySpec;
import org.osgl.util.C;
import java.util.List;
/**
* Used to paginate table layout
*/
public class TableCursor implements CliCursor {
private List data;
private int pageSize;
private int pageNo;
private PropertySpec.MetaInfo propertySpec;
public TableCursor(List data, int pageSize, PropertySpec.MetaInfo propertySpec) {
this.data = data;
this.pageSize = pageSize;
this.propertySpec = propertySpec;
}
private List get() {
int history = pageSize * pageNo++;
if (history >= data.size()) {
return C.list();
}
return C.list(data).drop(history).take(pageSize);
}
@Override
public boolean hasNext() {
return pageSize * pageNo < data.size();
}
@Override
public void output(CliContext context) {
List list = get();
if (list.isEmpty()) {
context.session().removeCursor();
context.println("no cursor");
return;
} else {
CliView.TABLE.print(list, propertySpec, context);
}
}
@Override
public int records() {
return data.size();
}
}