ucbhelper/source/provider/registerucb.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <ucbhelper/registerucb.hxx>
  21 #include <com/sun/star/beans/XPropertySet.hpp>
  22 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
  23 #include <com/sun/star/ucb/XContentProviderManager.hpp>
  24 #include <com/sun/star/ucb/XParameterizedContentProvider.hpp>
  25 #include <com/sun/star/ucb/ContentProviderProxyFactory.hpp>
  26 #include <com/sun/star/ucb/XContentProviderFactory.hpp>
  27 #include <com/sun/star/uno/XComponentContext.hpp>
  28 #include <com/sun/star/uno/RuntimeException.hpp>
  29
  30 #include "osl/diagnose.h"
  31
  32 using namespace com::sun::star;
  33
  34 namespace ucbhelper {
  35
  36
  37
  38 //  registerAtUcb
  39
  40
  41
  42 bool
  43 registerAtUcb(
  44     uno::Reference< ucb::XContentProviderManager > const & rManager,
  45     uno::Reference< uno::XComponentContext > const & rxContext,
  46     OUString const & rName,
  47     OUString const & rArguments,
  48     OUString const & rTemplate)
  49     throw (uno::RuntimeException)
  50 {
  51     OSL_ENSURE(rxContext.is(),
  52                "ucb::registerAtUcb(): No service factory");
  53
  54     bool bNoProxy = rArguments.startsWith("{noproxy}");
  55     OUString
  56         aProviderArguments(bNoProxy ?
  57                                rArguments.
  58                                    copy(RTL_CONSTASCII_LENGTH("{noproxy}")) :
  59                                rArguments);
  60
  61     uno::Reference< ucb::XContentProvider > xProvider;
  62
  63     if (!rName.isEmpty())
  64     {
  65         // First, try to instantiate proxy for provider:
  66         if (!bNoProxy)
  67         {
  68             uno::Reference< ucb::XContentProviderFactory > xProxyFactory;
  69             try
  70             {
  71                 xProxyFactory = ucb::ContentProviderProxyFactory::create( rxContext );
  72             }
  73             catch (uno::Exception const &) {}
  74             OSL_ENSURE(xProxyFactory.is(), "No ContentProviderProxyFactory");
  75             if (xProxyFactory.is())
  76                 xProvider = xProxyFactory->createContentProvider(rName);
  77         }
  78
  79         // Then, try to instantiate provider directly:
  80         if (!xProvider.is())
  81             try
  82             {
  83                 xProvider = uno::Reference< ucb::XContentProvider >(
  84                     rxContext->getServiceManager()->createInstanceWithContext(rName, rxContext),
  85                     uno::UNO_QUERY);
  86             }
  87             catch (uno::RuntimeException const &) { throw; }
  88             catch (uno::Exception const &) {}
  89     }
  90
  91     uno::Reference< ucb::XParameterizedContentProvider >
  92         xParameterized(xProvider, uno::UNO_QUERY);
  93     if (xParameterized.is())
  94     {
  95         uno::Reference< ucb::XContentProvider > xInstance;
  96         try
  97         {
  98             xInstance = xParameterized->registerInstance(rTemplate,
  99                                                          aProviderArguments,
 100                                                          true);
 101                 //@@@ if this call replaces an old instance, the commit-or-
 102                 // rollback code below will not work
 103         }
 104         catch (lang::IllegalArgumentException const &) {}
 105
 106         if (xInstance.is())
 107             xProvider = xInstance;
 108     }
 109
 110     bool bSuccess = false;
 111     if (rManager.is() && (rName.isEmpty() || xProvider.is()))
 112     {
 113         try
 114         {
 115             rManager->registerContentProvider(xProvider, rTemplate, true);
 116             bSuccess = true;
 117         }
 118         catch (ucb::DuplicateProviderException const &)
 119         {
 120             if (xParameterized.is())
 121                 try
 122                 {
 123                     xParameterized->deregisterInstance(rTemplate,
 124                                                        aProviderArguments);
 125                 }
 126                 catch (lang::IllegalArgumentException const &) {}
 127         }
 128         catch (...)
 129         {
 130             if (xParameterized.is())
 131                 try
 132                 {
 133                     xParameterized->deregisterInstance(rTemplate,
 134                                                        aProviderArguments);
 135                 }
 136                 catch (lang::IllegalArgumentException const &) {}
 137                 catch (uno::RuntimeException const &) {}
 138             throw;
 139         }
 140     }
 141     return bSuccess;
 142 }
 143
 144 }
 145
 146 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */