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downloading a git-generated archive based on the 'upstream' tag
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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;
+  }
+
+}