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CARMIN_R2S (CARMIN Rest server to Soap server)
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CARMIN_R2S

CARMIN_R2S (CARMIN Rest server to Soap server) <img src="https://travis-ci.org/JinpengLI/CARMIN_R2S.svg?branch=master">

Assuming that your server is based on CARMIN rest (carmin.yaml in https://github.com/fli-iam/CARMIN),
CARMIN_R2S module is used for translating the rest server to the soap server (api.wsdl, https://github.com/fli-iam/CARMIN).

Build from Source

For the moment, this tutorial is only tested on Ubuntu 14.04 TLS.

gSOAP

Ubuntu Dependencies

$ sudo apt-get install bison flex
$ sudo apt-get install libcurl4-gnutls-dev

This module is based on gsoap. Therefore we first download the source of gsoap_2.7.17.zip.

https://sourceforge.net/projects/gsoap2/files/gSOAP/

Try to download the version gsoap_2.7.17.zip if it exists.

We don't propose to use the latest version of 2.8 since the license has been changed to GPL.

Extract gsoap_2.7.17.zip into ~/local/sources

$ SOURCES=/root/local/sources
$ INSTALL_PREFIX=/root/local
$ mkdir -p $SOURCES
$ mkdir -p $INSTALL_PREFIX
$ unzip gsoap_2.7.17.zip -d $SOURCES
$ cd $SOURCES/gsoap-2.7

Add the below codes in the beginning of the header file ./gsoap/stdsoap2.h

#ifndef WITH_COOKIES
#define WITH_COOKIES
#endif

It is used for enabling the cookie module in gsoap.

$ ./configure --prefix=$INSTALL_PREFIX

you may miss some packages, please install them and re-run ./configure --prefix=$INSTALL_PREFIX.

$ make
$ make install

You can add your installed path bin in your PATH enviroment variable with ~/.bashrc

$ echo "export PATH=$INSTALL_PREFIX/bin:\$PATH" >> ~/.bashrc
$ echo "export LD_LIBRARY_PATH=$INSTALL_PREFIX/lib:\$LD_LIBRARY_PATH" >> ~/.bashrc

rapidjson

$ SOURCES=/root/local/sources
$ INSTALL_PREFIX=/root/local

$ git clone https://github.com/miloyip/rapidjson.git ${SOURCES}/rapidjson
$ ln -s ${SOURCES}/rapidjson/include/rapidjson ${INSTALL_PREFIX}/include/

libcurl

On ubuntu, you can install it via apt-get

$ apt-get install libcurl4-gnutls-dev
$ apt-get install libcurl4-openssl-dev

or built it from sources

$ SOURCES=/root/local/sources
$ INSTALL_PREFIX=/root/local

$ cd $SOURCES
$ wget https://curl.haxx.se/snapshots/curl-7.50.0-20160705.tar.gz
$ tar -xvf curl-7.50.0-20160705.tar.gz
$ cd curl-7.50.0-20160705
$ ./configure --prefix=$INSTALL_PREFIX
$ make
$ make install

If you build libcurl from source, you have to modify TARGET_LINK_LIBRARIES as below in the CMakeLists.txt from the project CARMIN_R2S.

TARGET_LINK_LIBRARIES(carmin_server
${LOCAL_INSTALL_PREFIX}/lib/libgsoap++.a
${LOCAL_INSTALL_PREFIX}/lib/libgsoapssl++.a
${LOCAL_INSTALL_PREFIX}/lib/libcurl.so
)

CARMIN_R2S

$ SOURCES=/root/local/sources
$ INSTALL_PREFIX=/root/local

$ git clone https://github.com/fli-iam/CARMIN_R2S.git ${SOURCES}/CARMIN_R2S
$ cd ${SOURCES}/CARMIN_R2S
$ cp CMakeLists.txt.origin CMakeLists.txt

Modify LOCAL_INSTALL_PREFIX's value as the gsoap and rapidjson location in CMakeLists.txt.

set(LOCAL_INSTALL_PREFIX "/root/local")
$ mkdir builds
$ cd builds
$ cmake ..
$ make

Hope there is no error during compilation.

If there is no error, you can start the server as below:

$ ${SOURCES}/CARMIN_R2S/builds/carmin_server ${SOURCES}/CARMIN_R2S/config_template/config_demo.ini

How to update the .h file from a .wsdl file

For example, you can start with a wsdl file for example api.wsdl.

The api.h file can be producced by the command below:

$ wsdl2h api.wsdl

By default, the wsdl2h will generate the function such as

int ns2__xxxxx(xxx xxxx, xxxx xxxx);

which has a prefix ns2__. This prefix could be changed by adding the below line in the file which called typemap.dat.

api = "http://france-life-imaging.fr/api"

typemap.dat can be found in the source of gSoap.

Put this file typemap.dat within the same directory of api.wsdl. You can generate the api.h again.

$ wsdl2h api.wsdl

Therefore all the prefixes will be changed as below:

int api_xxxxx(xxx xxxx, xxxx xxxx);

How to generate .cpp file

soapcpp2 -I/path/to/share/gsoap/import -S -x api.h
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