find.hpp

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/*
*                         Vortex OpenSplice
*
 *   This software and documentation are Copyright 2006 to 2021 ADLINK
 *   Technology Limited, its affiliated companies and licensors. All rights
 *   reserved.
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
*
*/


#ifndef OSPL_DDS_PUB_DETAIL_FIND_HPP_
#define OSPL_DDS_PUB_DETAIL_FIND_HPP_

#include <string>

#include <dds/pub/DataWriter.hpp>
#include <dds/pub/Publisher.hpp>
#include <org/opensplice/pub/PublisherDelegate.hpp>
#include <org/opensplice/pub/AnyDataWriterDelegate.hpp>

namespace dds
{
namespace pub
{

template <typename WRITER, typename FwdIterator>
uint32_t
find(const dds::pub::Publisher& pub, const std::string& topic_name,
     FwdIterator begin, int32_t max_size)
{
    ISOCPP_REPORT_STACK_DDS_BEGIN(pub);
    if(max_size > 0) {
        org::opensplice::pub::AnyDataWriterDelegate::ref_type writer_base = pub.delegate()->find_datawriter(topic_name);
        if (writer_base) {
            /* Cast base writer to typed delegate: */
            typename WRITER::DELEGATE_REF_T writer_typed =
                    OSPL_CXX11_STD_MODULE::dynamic_pointer_cast<typename WRITER::DELEGATE_T>(writer_base);
            WRITER dw(writer_typed);
            if(dw != dds::core::null)
            {
                *begin = dw;
                return 1;
            }
        }
    }
    return 0;
}


template <typename WRITER, typename BinIterator>
uint32_t
find(const dds::pub::Publisher& pub,
     const std::string& topic_name,
     BinIterator begin)
{
    ISOCPP_REPORT_STACK_DDS_BEGIN(pub);
    org::opensplice::pub::AnyDataWriterDelegate::ref_type writer_base = pub.delegate()->find_datawriter(topic_name);
    if (writer_base) {
        /* Cast base writer to typed delegate: */
        typename WRITER::DELEGATE_REF_T writer_typed =
                OSPL_CXX11_STD_MODULE::dynamic_pointer_cast<typename WRITER::DELEGATE_T>(writer_base);
        WRITER dw(writer_typed);
        if(dw != dds::core::null)
        {
            *begin = dw;
            return 1;
        }
    }
    return 0;
}


}
}

#endif /* OSPL_DDS_PUB_DETAIL_FIND_HPP_ */