Class PrefixPrinter

core/java/android/util/PrefixPrinter.java:25–50

PrefixPrinter is a Printer which prefixes all lines with a given prefix. @hide

 * @hide
 */
public class PrefixPrinter implements Printer {
    private final Printer mPrinter;
    private final String mPrefix;

    /**
     * Creates a new PrefixPrinter.
     *
     * <p>If prefix is null or empty, the provided printer is returned, rather
     * than making a prefixing printer.
     */
    public static Printer create(Printer printer, String prefix) {
        if (prefix == null || prefix.equals("")) {
            return printer;
        }
        return new PrefixPrinter(printer, prefix);
    }

    private PrefixPrinter(Printer printer, String prefix) {
        mPrinter = printer;
        mPrefix = prefix;
    }

    public void println(String str) {
        mPrinter.println(mPrefix + str);
    }
}