import javax.print.attribute.standard.PagesPerMinute; //导入依赖的package包/类
public PrintServiceAttributeSet getAttributes() {
    PrintServiceAttributeSet attributes =
        new HashPrintServiceAttributeSet();
    attributes.add(new PrinterName(serviceName, Locale.getDefault()));
    if (getColorSupported(serviceName)) {
        attributes.add(ColorSupported.SUPPORTED);
        int colorPPM = getPagesPerMinuteColor(serviceName);
        if (colorPPM > 0) {
            attributes.add(new PagesPerMinuteColor(colorPPM));
        }
    } else {
        attributes.add(ColorSupported.NOT_SUPPORTED);
    }
    
    int pagesPerMinute = getPagesPerMinute(serviceName);
    if (pagesPerMinute > 0) {
        attributes.add(new PagesPerMinute(pagesPerMinute));
    }
    
    String printerLocation = getPrinterLocation(serviceName);
    if (printerLocation != null) {
        attributes.add(new PrinterLocation(printerLocation,
                Locale.getDefault()));
    }
    
    int acceptingJobs = getPrinterIsAcceptingJobs(serviceName);
    if (acceptingJobs == 0) {
        attributes.add(PrinterIsAcceptingJobs.NOT_ACCEPTING_JOBS);
    } else if (acceptingJobs == 1) {
        attributes.add(PrinterIsAcceptingJobs.ACCEPTING_JOBS);
    }
    
    int jobCount = getQueuedJobCount(serviceName);
    if (jobCount >= 0) {
        attributes.add(new QueuedJobCount(jobCount));
    }
    return attributes;
}
 

import javax.print.attribute.standard.PagesPerMinute; //导入依赖的package包/类
public final void testGetValue() {
    is1 = new PagesPerMinute(30);
    assertTrue(is1.getValue() == 30);
}