mirror of git://gcc.gnu.org/git/gcc.git
289 lines
8.9 KiB
Java
289 lines
8.9 KiB
Java
/* CupsServer.java --
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.javax.print;
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import gnu.javax.print.ipp.IppException;
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import gnu.javax.print.ipp.IppPrintService;
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import gnu.javax.print.ipp.IppRequest;
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import gnu.javax.print.ipp.IppResponse;
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import gnu.javax.print.ipp.attribute.RequestedAttributes;
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import gnu.javax.print.ipp.attribute.supported.PrinterUriSupported;
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import java.io.IOException;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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/**
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* <code>CupsServer</code> represents a host running a cups
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* compatible server. It mainly consists of its URI and optional
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* user and password combination if access is restricted.
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* <p>
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* It provides methods for retrival of valid CUPS printer uris
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* that are used to construct IppPrintService objects.
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* </p>
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*
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* @author Wolfgang Baer (WBaer@gmx.de)
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*/
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public class CupsServer
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{
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/**
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* The URI of the CUPS server.
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* This is something like: http://localhost:631
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*/
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private transient URI uri;
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/**
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* The optional username.
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*/
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private transient String username;
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/**
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* The optional password for the user.
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*/
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private transient String password;
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/**
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* Creates a <code>CupsServer</code> object which
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* tries to connect to a cups server.
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*
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* If <code>gnu.javax.print.server</code> is explicitly set, then
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* that hostname will be used. Otherwise it will default to localhost.
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*
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* @param username the username
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* @param password the password for the username.
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*/
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public CupsServer(String username, String password)
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{
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this.username = username;
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this.password = password;
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this.uri = null;
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try
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{
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String serv = System.getProperty("gnu.javax.print.server");
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if( serv != null )
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this.uri = new URI("http://"+serv+":631");
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}
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catch(URISyntaxException use)
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{
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throw new RuntimeException("gnu.javax.print.CupsServer value is not a valid hostname.");
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}
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catch(SecurityException se)
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{
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}
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try
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{
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if( this.uri == null )
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this.uri = new URI("http://localhost:631");
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}
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catch (URISyntaxException e)
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{
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// does not happen
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}
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}
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/**
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* Creates a <code>CupsServer</code> object which
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* tries to connect to a running cups server on the
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* given URI.
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*
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* @param uri the URI of the server.
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* @param username the username
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* @param password the password for the username.
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*/
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public CupsServer(URI uri, String username, String password)
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{
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this.uri = uri;
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this.username = username;
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this.password = password;
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}
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/**
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* Requests the default printer from this CUPS server.
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* This is always returned as IppPrintService.
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*
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* @return The default printer.
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* @throws IppException if problems during request/response processing occur.
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*/
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public IppPrintService getDefaultPrinter() throws IppException
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{
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IppResponse response = null;
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try
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{
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IppRequest request = new IppRequest(uri, username, password);
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request.setOperationID((short)CupsIppOperation.CUPS_GET_DEFAULT);
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request.setOperationAttributeDefaults();
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RequestedAttributes requestedAttrs
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= new RequestedAttributes("printer-uri-supported");
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request.addOperationAttribute(requestedAttrs);
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response = request.send();
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}
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catch (IOException e)
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{
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throw new IppException("IOException in IPP request/response.", e);
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}
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Map printerAttributes = (Map) response.getPrinterAttributes().get(0);
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Set uris = (Set) printerAttributes.get(PrinterUriSupported.class);
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PrinterUriSupported uri = (PrinterUriSupported) uris.toArray()[0];
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IppPrintService service
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= new CupsPrintService(uri.getURI(), username, password);
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return service;
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}
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/**
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* Requests all printers from this CUPS server.
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*
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* @return The list of available printers.
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* @throws IppException if problems during request/response processing occur.
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*/
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public List getAllPrinters() throws IppException
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{
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IppResponse response = null;
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try
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{
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IppRequest request = new IppRequest(uri, username, password);
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request.setOperationID((short)CupsIppOperation.CUPS_GET_PRINTERS);
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request.setOperationAttributeDefaults();
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RequestedAttributes requestedAttrs
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= new RequestedAttributes("printer-uri-supported");
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request.addOperationAttribute(requestedAttrs);
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response = request.send();
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}
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catch (IOException e)
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{
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throw new IppException("IOException in IPP request/response.", e);
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}
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List prAttr = response.getPrinterAttributes();
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List services = new ArrayList();
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for (int i=0; i < prAttr.size(); i++)
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{
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Map printerAttributes = (Map) prAttr.get(i);
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Set uris = (Set) printerAttributes.get(PrinterUriSupported.class);
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PrinterUriSupported uri = (PrinterUriSupported) uris.toArray()[0];
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try
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{
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CupsPrintService cups = new CupsPrintService(uri.getURI(),
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username, password);
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services.add(cups);
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}
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catch (IppException e)
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{
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// do nothing, we only catch the IppException which could be
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// thrown during instantiation as single printers may be discovered
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// correctly but not usable due to other security restrictions
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}
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}
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return services;
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}
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/**
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* Requests all classes from this CUPS server. Classes in cups are
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* collections of printers. This means jobs directed to a class
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* are forwarded to the first available printer of the collection.
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*
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* @return The list of available classes.
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* @throws IppException if problems during request/response processing occur.
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*/
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public List getAllClasses() throws IppException
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{
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IppResponse response = null;
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try
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{
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IppRequest request = new IppRequest(uri, username, password);
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request.setOperationID((short)CupsIppOperation.CUPS_GET_CLASSES);
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request.setOperationAttributeDefaults();
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RequestedAttributes requestedAttrs
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= new RequestedAttributes("printer-uri-supported");
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request.addOperationAttribute(requestedAttrs);
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response = request.send();
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}
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catch (IOException e)
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{
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throw new IppException("IOException in IPP request/response.", e);
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}
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List prAttr = response.getPrinterAttributes();
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List services = new ArrayList();
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for (int i=0; i < prAttr.size(); i++)
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{
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Map printerAttributes = (Map) prAttr.get(i);
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Set uris = (Set) printerAttributes.get(PrinterUriSupported.class);
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PrinterUriSupported uri = (PrinterUriSupported) uris.toArray()[0];
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try
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{
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CupsPrintService cups = new CupsPrintService(uri.getURI(),
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username, password);
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services.add(cups);
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}
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catch (IppException e)
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{
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// do nothing, we only catch the IppException which could be
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// thrown during instantiation as single printers may be discovered
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// correctly but not usable due to other security restrictions
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}
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}
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return services;
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}
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}
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