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/* * @(#)JobKOctets.java 1.9 05/11/17 * * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package javax.print.attribute.standard; import javax.print.attribute.Attribute; import javax.print.attribute.IntegerSyntax; import javax.print.attribute.PrintRequestAttribute; import javax.print.attribute.PrintJobAttribute; /** * Class JobKOctets is an integer valued printing attribute class that specifies * the total size of the document(s) in K octets, i.e., in units of 1024 octets * requested to be processed in the job. The value must be rounded up, so that a * job between 1 and 1024 octets must be indicated as being 1K octets, 1025 to * 2048 must be 2K octets, etc. For a multidoc print job (a job with multiple * documents), the JobKOctets value is computed by adding up the individual * documents' sizes in octets, then rounding up to the next K octets value. * <P> * The JobKOctets attribute describes the size of the job. This attribute is not * intended to be a counter; it is intended to be useful routing and scheduling * information if known. The printer may try to compute the JobKOctets * attribute's value if it is not supplied in the Print Request. Even if the * client does supply a value for the JobKOctets attribute in the Print Request, * the printer may choose to change the value if the printer is able to compute * a value which is more accurate than the client supplied value. The printer * may be able to determine the correct value for the JobKOctets attribute * either right at job submission time or at any later point in time. * <P> * The JobKOctets value must not include the multiplicative factors contributed * by the number of copies specified by the {@link Copies Copies} attribute, * independent of whether the device can process multiple copies without making * multiple passes over the job or document data and independent of whether the * output is collated or not. Thus the value is independent of the * implementation and indicates the size of the document(s) measured in K octets * independent of the number of copies. * <P> * The JobKOctets value must also not include the multiplicative factor due to a * copies instruction embedded in the document data. If the document data * actually includes replications of the document data, this value will include * such replication. In other words, this value is always the size of the source * document data, rather than a measure of the hardcopy output to be produced. * <P> * The size of a doc is computed based on the print data representation class as * specified by the doc's {@link javax.print.DocFlavor DocFlavor}, as * shown in the table below. * <P> * <TABLE BORDER=1 CELLPADDING=2 CELLSPACING=1 SUMMARY="Table showing computation of doc sizes"> * <TR BGCOLOR="#E5E5E5"> * <TH>Representation Class</TH> * <TH>Document Size</TH> * </TR> * <TR> * <TD>byte[]</TD> * <TD>Length of the byte array</TD> * </TR> * <TR> * <TD>java.io.InputStream</TD> * <TD>Number of bytes read from the stream</TD> * </TR> * <TR> * <TD>char[]</TD> * <TD>Length of the character array x 2</TD> * </TR> * <TR> * <TD>java.lang.String</TD> * <TD>Length of the string x 2</TD> * </TR> * <TR> * <TD>java.io.Reader</TD> * <TD>Number of characters read from the stream x 2</TD> * </TR> * <TR> * <TD>java.net.URL</TD> * <TD>Number of bytes read from the file at the given URL address</TD> * </TR> * <TR> * <TD>java.awt.image.renderable.RenderableImage</TD> * <TD>Implementation dependent*</TD> * </TR> * <TR> * <TD>java.awt.print.Printable</TD> * <TD>Implementation dependent*</TD> * </TR> * <TR> * <TD>java.awt.print.Pageable</TD> * <TD>Implementation dependent*</TD> * </TR> * </TABLE> * <P> * * In these cases the Print Service itself generates the print data sent * to the printer. If the Print Service supports the JobKOctets attribute, for * these cases the Print Service itself must calculate the size of the print * data, replacing any JobKOctets value the client specified. * <P> * <B>IPP Compatibility:</B> The integer value gives the IPP integer value. The * category name returned by <CODE>getName()</CODE> gives the IPP attribute * name. * <P> * * @see JobKOctetsSupported * @see JobKOctetsProcessed * @see JobImpressions * @see JobMediaSheets * * @author Alan Kaminsky */ public final class JobKOctets extends IntegerSyntax implements PrintRequestAttribute, PrintJobAttribute { private static final long serialVersionUID = -8959710146498202869L; /** * Construct a new job K octets attribute with the given integer value. * * @param value Integer value. * * @exception IllegalArgumentException * (Unchecked exception) Thrown if <CODE>value</CODE> is less than 0. */ public JobKOctets(int value) { super (value, 0, Integer.MAX_VALUE); } /** * Returns whether this job K octets attribute is equivalent to the passed * in object. To be equivalent, all of the following conditions must be * true: * <OL TYPE=1> * <LI> * <CODE>object</CODE> is not null. * <LI> * <CODE>object</CODE> is an instance of class JobKOctets. * <LI> * This job K octets attribute's value and <CODE>object</CODE>'s value * are equal. * </OL> * * @param object Object to compare to. * * @return True if <CODE>object</CODE> is equivalent to this job K * octets attribute, false otherwise. */ public boolean equals(Object object) { return super.equals(object) && object instanceof JobKOctets; } /** * Get the printing attribute class which is to be used as the "category" * for this printing attribute value. * <P> * For class JobKOctets, the category is class JobKOctets itself. * * @return Printing attribute class (category), an instance of class * {@link java.lang.Class java.lang.Class}. */ public final Class<? extends Attribute> getCategory() { return JobKOctets.class; } /** * Get the name of the category of which this attribute value is an * instance. * <P> * For class JobKOctets, the category name is <CODE>"job-k-octets"</CODE>. * * @return Attribute category name. */ public final String getName() { return "job-k-octets"; } }