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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/javax/print/CupsPrintServiceLookup.java | |
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Diffstat (limited to 'libjava/classpath/gnu/javax/print/CupsPrintServiceLookup.java')
-rw-r--r-- | libjava/classpath/gnu/javax/print/CupsPrintServiceLookup.java | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/print/CupsPrintServiceLookup.java b/libjava/classpath/gnu/javax/print/CupsPrintServiceLookup.java new file mode 100644 index 000000000..d537c398f --- /dev/null +++ b/libjava/classpath/gnu/javax/print/CupsPrintServiceLookup.java @@ -0,0 +1,260 @@ +/* CupsPrintServiceLookup.java -- Implementation based on CUPS + Copyright (C) 2006 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.javax.print; + +import gnu.javax.print.ipp.IppException; + +import java.util.ArrayList; + +import javax.print.DocFlavor; +import javax.print.MultiDocPrintService; +import javax.print.PrintService; +import javax.print.PrintServiceLookup; +import javax.print.attribute.Attribute; +import javax.print.attribute.AttributeSet; + +/** + * The platform default implementation based on CUPS. + * + * @author Wolfgang Baer (WBaer@gmx.de) + */ +public class CupsPrintServiceLookup extends PrintServiceLookup +{ + private CupsServer server; + + /** + * Default constructor checking security access. + */ + public CupsPrintServiceLookup() + { + // security + SecurityManager sm = System.getSecurityManager(); + if (sm != null) + sm.checkPrintJobAccess(); + + // use the localhost cups server + server = new CupsServer(null, null); + } + + /** + * This is the printer marked as default in CUPS. + * + * @return The default lookup service or + * <code>null</code> if there is no default. + */ + public PrintService getDefaultPrintService() + { + try + { + return server.getDefaultPrinter(); + } + catch (IppException e) + { + // if discovery fails treat as if there is none + return null; + } + } + + /** + * All printers and printer classes of the CUPS server are checked. + * If flavors or attributes are null the constraint is not used. + * + * @param flavors the document flavors which have to be supported. + * @param attributes the attributes which have to be supported. + * + * @return The multidoc print services of the implementing lookup service + * for the given parameters, or an array of length 0 if none is available. + */ + public MultiDocPrintService[] getMultiDocPrintServices(DocFlavor[] flavors, + AttributeSet attributes) + { + ArrayList result = new ArrayList(); + PrintService[] services = getPrintServices(); + + for (int i=0; i < services.length; i++) + { + if (checkMultiDocPrintService(flavors, attributes, services[i])) + result.add(services[i]); + } + + return (MultiDocPrintService[]) result.toArray( + new MultiDocPrintService[result.size()]); + } + + /** + * These are all printers and printer classes of the CUPS server. + * + * @return All known print services regardless of supported features, + * or an array of length 0 if none is available. + */ + public PrintService[] getPrintServices() + { + ArrayList result = new ArrayList(); + + try + { + result.addAll(server.getAllPrinters()); + result.addAll(server.getAllClasses()); + } + catch (IppException e) + { + // ignore as this method cannot throw exceptions + // if print service discovery fails - bad luck + } + return (PrintService[]) result.toArray(new PrintService[result.size()]); + } + + + /** + * All printers and printer classes of the CUPS server are checked. + * If flavor or attributes are null the constraint is not used. + * + * @param flavor the document flavor which has to be supported. + * @param attributes the attributes which have to be supported. + * + * @return The print services of the implementing lookup service + * for the given parameters, or an array of length 0 if none is available. + */ + public PrintService[] getPrintServices(DocFlavor flavor, + AttributeSet attributes) + { + ArrayList result = new ArrayList(); + PrintService[] services = getPrintServices(); + + for (int i=0; i < services.length; i++) + { + if (checkPrintService(flavor, attributes, services[i])) + result.add(services[i]); + } + + return (PrintService[]) result.toArray(new PrintService[result.size()]); + } + + /** + * Checks the given print service - own method so it can be used also + * to check application registered print services from PrintServiceLookup. + * + * @param flavor the document flavor which has to be supported. + * @param attributes the attributes which have to be supported. + * @param service the service to check + * + * @return <code>true</code> if all constraints match, <code>false</code> + * otherwise. + */ + public boolean checkPrintService(DocFlavor flavor, AttributeSet attributes, + PrintService service) + { + boolean allAttributesSupported = true; + if (flavor == null || service.isDocFlavorSupported(flavor)) + { + if (attributes == null || attributes.size() == 0) + return allAttributesSupported; + + Attribute[] atts = attributes.toArray(); + for (int i = 0; i < atts.length; i++) + { + if (! service.isAttributeCategorySupported(atts[i].getCategory())) + { + allAttributesSupported = false; + break; + } + } + return allAttributesSupported; + } + + return false; + } + + /** + * Checks the given print service - own method so it can be used also + * to check application registered print services from PrintServiceLookup. + * + * @param flavors the document flavors which have to be supported. + * @param attributes the attributes which have to be supported. + * @param service the service to check + * + * @return <code>true</code> if all constraints match, <code>false</code> + * otherwise. + */ + public boolean checkMultiDocPrintService(DocFlavor[] flavors, + AttributeSet attributes, PrintService service) + { + if (service instanceof MultiDocPrintService) + { + boolean allFlavorsSupported = true; + boolean allAttributesSupported = true; + + if (flavors == null || flavors.length != 0) + allFlavorsSupported = true; + else + { + for (int k = 0; k < flavors.length; k++) + { + if (! service.isDocFlavorSupported(flavors[k])) + { + allFlavorsSupported = false; + break; + } + } + } + + if (attributes == null || attributes.size() == 0) + allAttributesSupported = true; + else + { + Attribute[] atts = attributes.toArray(); + for (int j = 0; j < atts.length; j++) + { + if (! service.isAttributeCategorySupported( + atts[j].getCategory())) + { + allAttributesSupported = false; + break; + } + } + } + + if (allAttributesSupported && allFlavorsSupported) + return true; + } + + return false; + } + +} |