Initial import.

[clinton/mirror/jspi/.git] / jspi / src / main / java / de / lohndirekt / print / IppPrintService.java

/**\r
 * Copyright (C) 2003 <a href="http://www.lohndirekt.de/">lohndirekt.de</a>\r
 *\r
 * This library is free software; you can redistribute it and/or\r
 * modify it under the terms of the GNU Lesser General Public\r
 * License as published by the Free Software Foundation; either\r
 * version 2.1 of the License, or (at your option) any later version.\r
 * \r
 * This library is distributed in the hope that it will be useful,\r
 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\r
 * Lesser General Public License for more details.\r
 * \r
 * You should have received a copy of the GNU Lesser General Public\r
 * License along with this library; if not, write to the Free Software\r
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
 *  \r
 */\r
package de.lohndirekt.print;\r
import java.io.IOException;\r
import java.net.URI;\r
import java.util.ArrayList;\r
import java.util.Arrays;\r
import java.util.HashSet;\r
import java.util.Iterator;\r
import java.util.List;\r
import java.util.Locale;\r
import java.util.Map;\r
import java.util.Set;\r
import java.util.logging.Level;\r
import java.util.logging.Logger;\r
\r
import javax.print.DocFlavor;\r
import javax.print.DocPrintJob;\r
import javax.print.PrintException;\r
import javax.print.PrintService;\r
import javax.print.ServiceUIFactory;\r
import javax.print.attribute.*;\r
import javax.print.attribute.standard.PrinterURI;\r
import javax.print.attribute.standard.RequestingUserName;\r
import javax.print.event.PrintServiceAttributeListener;\r
\r
import de.lohndirekt.print.attribute.IppAttributeName;\r
import de.lohndirekt.print.attribute.IppStatus;\r
import de.lohndirekt.print.attribute.auth.RequestingUserPassword;\r
import de.lohndirekt.print.attribute.ipp.DocumentFormat;\r
import de.lohndirekt.print.attribute.ipp.jobdesc.JobId;\r
import de.lohndirekt.print.attribute.ipp.printerdesc.supported.DocumentFormatSupported;\r
import de.lohndirekt.print.attribute.ipp.printerdesc.supported.OperationsSupported;\r
\r
/**\r
 * @author bpusch\r
 *\r
 * \r
 */\r
public class IppPrintService implements PrintService {\r
\r
	private final Logger log = Logger.getLogger(this.getClass().getName());\r
	private DocFlavor[] supportedFlavors = null;\r
	private URI uri;\r
	private RequestingUserName requestingUserName = null;\r
	private RequestingUserPassword requestingUserPassword = null;\r
	private Map attributes = null;\r
	\r
	/**\r
	 * @param uri\r
	 */\r
	public IppPrintService(URI uri) {\r
		this.uri = uri;\r
	}\r
	\r
	\r
\r
	/**\r
	 * @return\r
	 */\r
	URI getUri() {\r
		return this.uri;\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#getName()\r
	 */\r
	public String getName() {\r
		return uri.getPath().substring(uri.getPath().lastIndexOf("/") + 1);\r
	}\r
\r
	/**\r
	 * \r
	 */\r
	public void reset() {\r
		supportedFlavors = null;\r
		attributes = null;\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#createPrintJob()\r
	 */\r
	public DocPrintJob createPrintJob() {\r
		return new CancelableJob(this);\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#getAttributes()\r
	 */\r
	public PrintServiceAttributeSet getAttributes() {\r
		PrintServiceAttributeSet set = new HashPrintServiceAttributeSet();\r
		for (Iterator mapIter = getAllAttributes().values().iterator(); mapIter.hasNext();) {\r
			Set values = (Set) mapIter.next();\r
			for (Iterator listIter = values.iterator(); listIter.hasNext();) {\r
				Attribute attribute = (Attribute) listIter.next();\r
				if (attribute instanceof PrintServiceAttribute) {\r
					set.add(attribute);\r
				}\r
			}\r
		}\r
		return set;\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#getAttribute(java.lang.Class)\r
	 */\r
	public PrintServiceAttribute getAttribute(Class category) {\r
		if (category == null) {\r
			throw new NullPointerException("category must not be null");\r
		}\r
		//TODO As CUPS seems not to support this operation-tag (requested-attributes), we need to get all attributes\r
		Set attributes = (Set) getAllAttributes().get(category);\r
		if (attributes != null) {\r
			try {\r
				return (PrintServiceAttribute) attributes.iterator().next();\r
			} catch (ClassCastException e) {\r
				throw new IllegalArgumentException("category must be a Class that implements interface PrintServiceAttribute");\r
			}\r
		}\r
		return null;\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#getSupportedDocFlavors()\r
	 */\r
	public DocFlavor[] getSupportedDocFlavors() {\r
		if (supportedFlavors == null) {\r
			List flavors = new ArrayList();\r
			Set flavorAttributes =\r
				(Set) getAllAttributes().get(IppAttributeName.DOCUMENT_FORMAT_SUPORTED.getCategory());\r
			if (flavorAttributes != null) {\r
				for (Iterator iter = flavorAttributes.iterator(); iter.hasNext();) {\r
					Attribute attribute = (Attribute) iter.next();\r
					String mimeType = ((DocumentFormatSupported) attribute).getValue();\r
					if (mimeType.equals(DocFlavor.BYTE_ARRAY.AUTOSENSE.getMimeType())) {\r
						flavors.add(DocFlavor.INPUT_STREAM.AUTOSENSE);\r
					} else if (mimeType.equals(DocFlavor.BYTE_ARRAY.GIF.getMimeType())) {\r
						flavors.add(DocFlavor.INPUT_STREAM.GIF);\r
					} else if (mimeType.equals(DocFlavor.BYTE_ARRAY.JPEG.getMimeType())) {\r
						flavors.add(DocFlavor.INPUT_STREAM.JPEG);\r
					} else if (mimeType.equals(DocFlavor.BYTE_ARRAY.PCL.getMimeType())) {\r
						flavors.add(DocFlavor.INPUT_STREAM.PCL);\r
					} else if (mimeType.equals(DocFlavor.BYTE_ARRAY.PDF.getMimeType())) {\r
						flavors.add(DocFlavor.INPUT_STREAM.PDF);\r
					} else if (mimeType.equals(DocFlavor.BYTE_ARRAY.POSTSCRIPT.getMimeType())) {\r
						flavors.add(DocFlavor.INPUT_STREAM.POSTSCRIPT);\r
					} else if (mimeType.equals(DocFlavor.BYTE_ARRAY.PNG.getMimeType())) {\r
						flavors.add(DocFlavor.INPUT_STREAM.PNG);\r
					} else if (mimeType.equals(DocFlavor.BYTE_ARRAY.TEXT_HTML_HOST.getMimeType().substring(0, 9))) {\r
						flavors.add(DocFlavor.INPUT_STREAM.TEXT_HTML_HOST);\r
					} else if (mimeType.equals(DocFlavor.BYTE_ARRAY.TEXT_PLAIN_HOST.getMimeType().substring(0, 10))) {\r
						flavors.add(DocFlavor.INPUT_STREAM.TEXT_PLAIN_HOST);\r
					}\r
				}\r
			}\r
			DocFlavor[] flavorArray = new DocFlavor[flavors.size()];\r
			flavorArray = (DocFlavor[]) flavors.toArray(flavorArray);\r
			supportedFlavors = flavorArray;\r
		}\r
		return supportedFlavors;\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#isDocFlavorSupported(javax.print.DocFlavor)\r
	 */\r
	public boolean isDocFlavorSupported(DocFlavor flavor) {\r
		List supportedFlavors = Arrays.asList(getSupportedDocFlavors());\r
		return supportedFlavors.contains(flavor);\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#getSupportedAttributeCategories()\r
	 */\r
	public Class[] getSupportedAttributeCategories() {\r
		Set supportedCategories = new HashSet();\r
		//Attributes named in 4.2 of rfc2911 are optional\r
		if (getAllAttributes().containsKey(IppAttributeName.JOB_PRIORIY_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.JOB_PRIORIY.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.JOB_HOLD_UNTIL_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.JOB_HOLD_UNTIL.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.JOB_SHEETS_SUPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.JOB_SHEETS.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.MULTIPLE_DOCUMENT_HANDLING_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.MULTIPLE_DOCUMENT_HANDLING.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.COPIES_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.COPIES.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.FINISHINGS_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.FINISHINGS.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.PAGE_RANGES_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.PAGE_RANGES.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.SIDES_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.SIDES.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.NUMBER_UP_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.NUMBER_UP.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.ORIENTATION_REQUESTED_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.ORIENTATION_REQUESTED.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.MEDIA_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.MEDIA.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.PRINTER_RESOLUTION.getCategory())) {\r
			//printer-resolution-supported attribute currently not implemented\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.PRINT_QUALITY.getCategory())) {\r
			//print-quality-supported attribute currently not implemented\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.JOB_K_OCTETS_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.JOB_K_OCTETS.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.JOB_IMPRESSIONS_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.JOB_IMPRESSIONS.getCategory());\r
		}\r
		if (getAllAttributes().containsKey(IppAttributeName.JOB_MEDIA_SHEETS_SUPPORTED.getCategory())) {\r
			supportedCategories.add(IppAttributeName.JOB_MEDIA_SHEETS.getCategory());\r
		}\r
		//Printer object MUST support compression attribute\r
		supportedCategories.add(IppAttributeName.COMPRESSION.getCategory());\r
		Class[] categories = new Class[supportedCategories.size()];\r
		categories = (Class[]) supportedCategories.toArray(categories);\r
		return categories;\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#isAttributeCategorySupported(java.lang.Class)\r
	 */\r
	public boolean isAttributeCategorySupported(Class category) {\r
		return Arrays.asList(this.getSupportedAttributeCategories()).contains(category);\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#getDefaultAttributeValue(java.lang.Class)\r
	 */\r
	public Object getDefaultAttributeValue(Class category) {\r
		//Only the attributes listed in rfc2911 4.2(Job Template Attributes) make sense here\r
		Object value = null;\r
		if (category.equals(IppAttributeName.JOB_PRIORIY.getCategory())) {\r
			Attribute attr = getAttribute(IppAttributeName.JOB_PRIORITY_DEFAULT.getCategory());\r
			if (attr != null) {\r
				value = new Integer(((IntegerSyntax) attr).getValue());\r
			}\r
		} else if (category.equals(IppAttributeName.JOB_HOLD_UNTIL.getCategory())) {\r
			Attribute attr = getAttribute(IppAttributeName.JOB_HOLD_UNTIL.getCategory());\r
			if (attr != null) {\r
				value = new Integer(((TextSyntax) attr).getValue());\r
			}\r
		} else if (category.equals(IppAttributeName.JOB_SHEETS_DEFAULT.getCategory())) {\r
			Attribute attr = getAttribute(IppAttributeName.JOB_SHEETS_DEFAULT.getCategory());\r
			if (attr != null) {\r
				value = new Integer(((TextSyntax) attr).getValue());\r
			}\r
		} else if (category.equals(IppAttributeName.COPIES.getCategory())) {\r
			Attribute attr = getAttribute(IppAttributeName.COPIES_DEFAULT.getCategory());\r
			if (attr != null) {\r
				value = new Integer(((IntegerSyntax) attr).getValue());\r
			}\r
		} else if (category.equals(IppAttributeName.FINISHINGS.getCategory())) {\r
			Attribute attr = getAttribute(IppAttributeName.FINISHINGS_DEFAULT.getCategory());\r
			if (attr != null) {\r
				value = new Integer(((IntegerSyntax) attr).toString());\r
			}\r
		} else if (category.equals(IppAttributeName.SIDES.getCategory())) {\r
			Attribute attr = getAttribute(IppAttributeName.SIDES_DEFAULT.getCategory());\r
			if (attr != null) {\r
				value = new Integer(((TextSyntax) attr).getValue());\r
			}\r
		} else if (category.equals(IppAttributeName.NUMBER_UP.getCategory())) {\r
			Attribute attr = getAttribute(IppAttributeName.NUMBER_UP_DEFAULT.getCategory());\r
			if (attr != null) {\r
				value = new Integer(((IntegerSyntax) attr).getValue());\r
			}\r
		} else if (category.equals(IppAttributeName.ORIENTATION_REQUESTED.getCategory())) {\r
			Attribute attr = getAttribute(IppAttributeName.ORIENTATION_REQUESTED_DEFAULT.getCategory());\r
			if (attr != null) {\r
				value = ((TextSyntax) attr).getValue();\r
			}\r
		} else if (category.equals(IppAttributeName.MEDIA.getCategory())) {\r
			Attribute attr = getAttribute(IppAttributeName.MEDIA_DEFAULT.getCategory());\r
			if (attr != null) {\r
				value = ((TextSyntax) attr).getValue();\r
			}\r
		} else if (category.equals(IppAttributeName.PRINTER_RESOLUTION.getCategory())) {\r
			//Cups does not support the printer-resolution-default attribute\r
		} else if (category.equals(IppAttributeName.PRINT_QUALITY.getCategory())) {\r
			//Cups does not support the print-quality-default attribute\r
		} else if (category.equals(IppAttributeName.MULTIPLE_DOCUMENT_HANDLING.getCategory())) {\r
			Attribute attr = getAttribute(IppAttributeName.MULTIPLE_DOCUMENT_HANDLING_DEFAULT.getCategory());\r
			if (attr != null) {\r
				value = ((TextSyntax) attr).getValue();\r
			}\r
		}\r
		return value;\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#getSupportedAttributeValues(java.lang.Class, javax.print.DocFlavor, javax.print.attribute.AttributeSet)\r
	 */\r
	public Object getSupportedAttributeValues(Class category, DocFlavor flavor, AttributeSet attributes) {\r
		Set supportedAttributes = new HashSet();\r
		// Only the attributes listed in rfc2911 4.2(Job Template Attributes) do make sense here\r
		if (category.equals(IppAttributeName.JOB_PRIORIY.getCategory())) {\r
			supportedAttributes = (Set) getAllAttributes().get(IppAttributeName.JOB_PRIORIY_SUPPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.JOB_HOLD_UNTIL.getCategory())) {\r
			supportedAttributes = (Set) getAllAttributes().get(IppAttributeName.JOB_HOLD_UNTIL_SUPPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.JOB_SHEETS.getCategory())) {\r
			supportedAttributes = (Set) getAllAttributes().get(IppAttributeName.JOB_SHEETS_SUPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.MULTIPLE_DOCUMENT_HANDLING.getCategory())) {\r
			supportedAttributes =\r
				(Set) getAllAttributes().get(IppAttributeName.MULTIPLE_DOCUMENT_HANDLING_SUPPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.COPIES.getCategory())) {\r
			supportedAttributes = (Set) getAllAttributes().get(IppAttributeName.COPIES_SUPPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.FINISHINGS.getCategory())) {\r
			supportedAttributes = (Set) getAllAttributes().get(IppAttributeName.FINISHINGS_SUPPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.SIDES.getCategory())) {\r
			supportedAttributes = (Set) getAllAttributes().get(IppAttributeName.SIDES_SUPPORTED.getCategory());\r
		}\r
		//TODO page-ranges\r
		else if (category.equals(IppAttributeName.NUMBER_UP.getCategory())) {\r
			supportedAttributes = (Set) getAllAttributes().get(IppAttributeName.NUMBER_UP_SUPPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.ORIENTATION_REQUESTED.getCategory())) {\r
			supportedAttributes =\r
				(Set) getAllAttributes().get(IppAttributeName.ORIENTATION_REQUESTED_SUPPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.MEDIA.getCategory())) {\r
			supportedAttributes = (Set) getAllAttributes().get(IppAttributeName.MEDIA_SUPPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.PRINTER_RESOLUTION)) {\r
			//printer-resolution-supported attribute currently not implemented\r
		} else if (category.equals(IppAttributeName.PRINT_QUALITY.getCategory())) {\r
			//printer-quality-supported attribute currently not implemented\r
		} else if (category.equals(IppAttributeName.MULTIPLE_DOCUMENT_HANDLING.getCategory())) {\r
			supportedAttributes =\r
				(Set) getAllAttributes().get(IppAttributeName.MULTIPLE_DOCUMENT_HANDLING_SUPPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.JOB_IMPRESSIONS.getCategory())) {\r
			supportedAttributes =\r
				(Set) getAllAttributes().get(IppAttributeName.JOB_IMPRESSIONS_SUPPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.JOB_K_OCTETS.getCategory())) {\r
			supportedAttributes = (Set) getAllAttributes().get(IppAttributeName.JOB_K_OCTETS_SUPPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.JOB_MEDIA_SHEETS.getCategory())) {\r
			supportedAttributes =\r
				(Set) getAllAttributes().get(IppAttributeName.JOB_MEDIA_SHEETS_SUPPORTED.getCategory());\r
		} else if (category.equals(IppAttributeName.COMPRESSION.getCategory())) {\r
			supportedAttributes = (Set) getAllAttributes().get(IppAttributeName.COMPRESSION_SUPORTED.getCategory());\r
		}\r
		if (supportedAttributes == null) {\r
			supportedAttributes = new HashSet();\r
		}\r
		return supportedAttributes.toArray(new Attribute[supportedAttributes.size()]);\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#isAttributeValueSupported(javax.print.attribute.Attribute, javax.print.DocFlavor, javax.print.attribute.AttributeSet)\r
	 */\r
	public boolean isAttributeValueSupported(Attribute attrVal, DocFlavor flavor, AttributeSet attributes) {\r
		AttributeSet operationAttributes = new HashAttributeSet();\r
		if (flavor != null) {\r
			operationAttributes.add(new DocumentFormat(flavor.getMimeType(), Locale.getDefault()));\r
		}\r
		IppRequest request = this.request(OperationsSupported.VALIDATE_JOB);\r
		if (attributes == null) {\r
			attributes = new HashAttributeSet();\r
		}\r
		attributes.add(attrVal);\r
		Object[] attributeArray = attributes.toArray();\r
		PrintJobAttributeSet jobAttributes = new HashPrintJobAttributeSet();\r
		for (int i = 0; i < attributeArray.length; i++) {\r
			Attribute attribute = (Attribute) attributeArray[i];\r
			//attributes-charset, attributes-natural-language etc. are not set by the user\r
			if (attribute instanceof PrintRequestAttribute && attribute instanceof PrintJobAttribute) {\r
				if (attribute.getCategory().equals(IppAttributeName.JOB_NAME.getCategory())\r
					|| attribute.getCategory().equals(IppAttributeName.FIDELITY.getCategory())\r
					|| attribute.getCategory().equals(IppAttributeName.JOB_IMPRESSIONS.getCategory())\r
					|| attribute.getCategory().equals(IppAttributeName.JOB_K_OCTETS.getCategory())\r
					|| attribute.getCategory().equals(IppAttributeName.JOB_MEDIA_SHEETS.getCategory())) {\r
					operationAttributes.add(attribute);\r
				} else if (\r
					attribute.getCategory().equals(IppAttributeName.JOB_NAME.getCategory())\r
						|| attribute.getCategory().equals(IppAttributeName.FIDELITY.getCategory())) {\r
					//do nothing, Job Template Attributes can not be used in a Validate-Job operation\r
				} else {\r
					jobAttributes.add(attribute);\r
				}\r
			}\r
		}\r
		request.addOperationAttributes(operationAttributes);\r
		request.setJobAttributes(jobAttributes);\r
		IppResponse response = null;\r
		try {\r
			response = request.send();\r
		} catch (IOException e) {\r
			log.log(Level.SEVERE, e.getMessage(), e);\r
		}\r
		boolean supported = false;\r
		if (response != null) {\r
			if (response.getStatus().equals(IppStatus.SUCCESSFUL_OK)\r
				|| response.getStatus().equals(IppStatus.SUCCESSFUL_OK_CONFLICTING_ATTRIBUTES)\r
				|| response.getStatus().equals(IppStatus.SUCCESSFUL_OK_CONFLICTING_ATTRIBUTES)) {\r
				supported = true;\r
			}\r
		}\r
		return supported;\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#getUnsupportedAttributes(javax.print.DocFlavor, javax.print.attribute.AttributeSet)\r
	 */\r
	public AttributeSet getUnsupportedAttributes(DocFlavor flavor, AttributeSet attributes) {\r
		return null;\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#getServiceUIFactory()\r
	 */\r
	public ServiceUIFactory getServiceUIFactory() {\r
		return null;\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#addPrintServiceAttributeListener(javax.print.event.PrintServiceAttributeListener)\r
	 */\r
	public void addPrintServiceAttributeListener(PrintServiceAttributeListener listener) {\r
	}\r
\r
	/* (non-Javadoc)\r
	 * @see javax.print.PrintService#removePrintServiceAttributeListener(javax.print.event.PrintServiceAttributeListener)\r
	 */\r
	public void removePrintServiceAttributeListener(PrintServiceAttributeListener listener) {\r
	}\r
\r
	/**\r
	 * @return\r
	 */\r
	private Map getAllAttributes() {\r
		if (this.attributes == null) {\r
			IppRequest request = this.request(OperationsSupported.GET_PRINTER_ATTRIBUTES);\r
			IppResponse response = null;\r
			try {\r
				response = request.send();\r
			} catch (IOException e) {\r
				log.log(Level.SEVERE, e.getMessage(), e);\r
			}\r
			if (response != null) {\r
				this.attributes = response.getAttributes();\r
			}\r
		}\r
		return this.attributes;\r
	}\r
\r
	public String toString() {\r
		return this.getName();\r
	}\r
\r
	/**\r
	 * @param operation\r
	 * @return\r
	 */\r
	protected IppRequest request(OperationsSupported operation) {\r
		IppRequest request = IppRequestFactory.createIppRequest(this.uri, operation, this.getRequestingUserName(), this.getRequestingUserPassword());\r
		AttributeSet operationAttributes = new HashAttributeSet();\r
		operationAttributes.add(new PrinterURI(this.uri));\r
		request.addOperationAttributes(operationAttributes);\r
		return request;\r
	}\r
\r
	/**\r
	 * Returns a job with the given JobId, or null if no such\r
	 * Job exists.\r
	 * <br>\r
	 * Use jobExists to check for a Job with this JobId.\r
	 * <br>\r
	 * This method might return a Job which is not hold by this PrintService\r
	 * but the same CUPS server \r
	 * \r
	 * @param jobId\r
	 * @return the corresponding Job wihth the given JobId, or null if no such Job exists \r
	 * @throws PrintException\r
	 */\r
	//public Methods which are not part of the JPS API\r
	public DocPrintJob getJob(JobId jobId) throws PrintException {\r
		Job job = Job.getJob(this, jobId);\r
		return job;\r
	}\r
\r
	/**\r
	 * \r
	 * Check for a Job with the given JobId.\r
	 * <br>\r
	 * This method might return true, even if the printservice does not hold any \r
	 * job with the given JobId, but another PrintService on the same \r
	 * Cups server does. \r
	 * \r
	 * @param jobId\r
	 * @return true if a Job with the given JobId exists, false otherwise\r
	 * @throws PrintException\r
	 */\r
	public boolean jobExists(JobId jobId) throws PrintException {\r
		return Job.getJob(this, jobId) != null;\r
	}\r
\r
    \r
    public RequestingUserName getRequestingUserName() {\r
        return requestingUserName;\r
    }\r
    public void setRequestingUserName(RequestingUserName requestingUserName) {\r
        this.requestingUserName = requestingUserName;\r
    }\r
    public RequestingUserPassword getRequestingUserPassword() {\r
        return requestingUserPassword;\r
    }\r
    public void setRequestingUserPassword(\r
            RequestingUserPassword requestingUserPassword) {\r
        this.requestingUserPassword = requestingUserPassword;\r
    }\r
}\r