Spring-Boot: How to restrict the visibility of Beans











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I have two custom PlatformTransactionManager beans injected into the Spring framework with specific names as follows:



@Bean(name = "ubldbTransactionManager")
protected PlatformTransactionManager transactionManager(
@Qualifier("ubldbEntityManagerFactory") EntityManagerFactory entityManagerFactory) {
return new JpaTransactionManager(entityManagerFactory);
}

@Bean(name = "bpdbTransactionManager")
public PlatformTransactionManager bpdbTransactionManager(
@Qualifier("bpdbEntityManagerFactory") EntityManagerFactory entityManagerFactory) {
return new JpaTransactionManager(entityManagerFactory);
}


A 3rd-party library has a @Autowired protected PlatformTransactionManager transactionManager; dependency. So, the 3rd party library is not supposed to use none of the two TransactionManagers. However, as you see there is no Qualifier for the dependency injection in the external library and I get an error as follows:



Field transactionManager in org.camunda.bpm.spring.boot.starter.configuration.impl.DefaultDatasourceConfiguration required a single bean, but 2 were found:
- bpdbTransactionManager: defined by method 'bpdbTransactionManager' in class path resource [eu/nimble/service/bp/config/BusinessProcessDBConfig.class]
- ubldbTransactionManager: defined by method 'transactionManager' in class path resource [eu/nimble/service/bp/config/UBLDBConfig.class]


So, how can I restrict the visibility of the two Beans so that they would not be accessible by the 3rd-party library?










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  • Does that 3rd party library interacts with any database of its own? Have you disabled DataSourceAutoConfiguration ? If that library uses TransactionManager then there must be an underlying DB for that library. Have you identified that?
    – Himanshu Bhardwaj
    yesterday












  • I've not disabled DataSourceAutoConfiguration since the 3rd party library interacts with its own database. I'm aware of the DB.
    – suat
    yesterday















up vote
1
down vote

favorite
1












I have two custom PlatformTransactionManager beans injected into the Spring framework with specific names as follows:



@Bean(name = "ubldbTransactionManager")
protected PlatformTransactionManager transactionManager(
@Qualifier("ubldbEntityManagerFactory") EntityManagerFactory entityManagerFactory) {
return new JpaTransactionManager(entityManagerFactory);
}

@Bean(name = "bpdbTransactionManager")
public PlatformTransactionManager bpdbTransactionManager(
@Qualifier("bpdbEntityManagerFactory") EntityManagerFactory entityManagerFactory) {
return new JpaTransactionManager(entityManagerFactory);
}


A 3rd-party library has a @Autowired protected PlatformTransactionManager transactionManager; dependency. So, the 3rd party library is not supposed to use none of the two TransactionManagers. However, as you see there is no Qualifier for the dependency injection in the external library and I get an error as follows:



Field transactionManager in org.camunda.bpm.spring.boot.starter.configuration.impl.DefaultDatasourceConfiguration required a single bean, but 2 were found:
- bpdbTransactionManager: defined by method 'bpdbTransactionManager' in class path resource [eu/nimble/service/bp/config/BusinessProcessDBConfig.class]
- ubldbTransactionManager: defined by method 'transactionManager' in class path resource [eu/nimble/service/bp/config/UBLDBConfig.class]


So, how can I restrict the visibility of the two Beans so that they would not be accessible by the 3rd-party library?










share|improve this question
























  • Does that 3rd party library interacts with any database of its own? Have you disabled DataSourceAutoConfiguration ? If that library uses TransactionManager then there must be an underlying DB for that library. Have you identified that?
    – Himanshu Bhardwaj
    yesterday












  • I've not disabled DataSourceAutoConfiguration since the 3rd party library interacts with its own database. I'm aware of the DB.
    – suat
    yesterday













up vote
1
down vote

favorite
1









up vote
1
down vote

favorite
1






1





I have two custom PlatformTransactionManager beans injected into the Spring framework with specific names as follows:



@Bean(name = "ubldbTransactionManager")
protected PlatformTransactionManager transactionManager(
@Qualifier("ubldbEntityManagerFactory") EntityManagerFactory entityManagerFactory) {
return new JpaTransactionManager(entityManagerFactory);
}

@Bean(name = "bpdbTransactionManager")
public PlatformTransactionManager bpdbTransactionManager(
@Qualifier("bpdbEntityManagerFactory") EntityManagerFactory entityManagerFactory) {
return new JpaTransactionManager(entityManagerFactory);
}


A 3rd-party library has a @Autowired protected PlatformTransactionManager transactionManager; dependency. So, the 3rd party library is not supposed to use none of the two TransactionManagers. However, as you see there is no Qualifier for the dependency injection in the external library and I get an error as follows:



Field transactionManager in org.camunda.bpm.spring.boot.starter.configuration.impl.DefaultDatasourceConfiguration required a single bean, but 2 were found:
- bpdbTransactionManager: defined by method 'bpdbTransactionManager' in class path resource [eu/nimble/service/bp/config/BusinessProcessDBConfig.class]
- ubldbTransactionManager: defined by method 'transactionManager' in class path resource [eu/nimble/service/bp/config/UBLDBConfig.class]


So, how can I restrict the visibility of the two Beans so that they would not be accessible by the 3rd-party library?










share|improve this question















I have two custom PlatformTransactionManager beans injected into the Spring framework with specific names as follows:



@Bean(name = "ubldbTransactionManager")
protected PlatformTransactionManager transactionManager(
@Qualifier("ubldbEntityManagerFactory") EntityManagerFactory entityManagerFactory) {
return new JpaTransactionManager(entityManagerFactory);
}

@Bean(name = "bpdbTransactionManager")
public PlatformTransactionManager bpdbTransactionManager(
@Qualifier("bpdbEntityManagerFactory") EntityManagerFactory entityManagerFactory) {
return new JpaTransactionManager(entityManagerFactory);
}


A 3rd-party library has a @Autowired protected PlatformTransactionManager transactionManager; dependency. So, the 3rd party library is not supposed to use none of the two TransactionManagers. However, as you see there is no Qualifier for the dependency injection in the external library and I get an error as follows:



Field transactionManager in org.camunda.bpm.spring.boot.starter.configuration.impl.DefaultDatasourceConfiguration required a single bean, but 2 were found:
- bpdbTransactionManager: defined by method 'bpdbTransactionManager' in class path resource [eu/nimble/service/bp/config/BusinessProcessDBConfig.class]
- ubldbTransactionManager: defined by method 'transactionManager' in class path resource [eu/nimble/service/bp/config/UBLDBConfig.class]


So, how can I restrict the visibility of the two Beans so that they would not be accessible by the 3rd-party library?







java spring spring-boot visibility camunda






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share|improve this question








edited yesterday

























asked yesterday









suat

2,93022040




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  • Does that 3rd party library interacts with any database of its own? Have you disabled DataSourceAutoConfiguration ? If that library uses TransactionManager then there must be an underlying DB for that library. Have you identified that?
    – Himanshu Bhardwaj
    yesterday












  • I've not disabled DataSourceAutoConfiguration since the 3rd party library interacts with its own database. I'm aware of the DB.
    – suat
    yesterday


















  • Does that 3rd party library interacts with any database of its own? Have you disabled DataSourceAutoConfiguration ? If that library uses TransactionManager then there must be an underlying DB for that library. Have you identified that?
    – Himanshu Bhardwaj
    yesterday












  • I've not disabled DataSourceAutoConfiguration since the 3rd party library interacts with its own database. I'm aware of the DB.
    – suat
    yesterday
















Does that 3rd party library interacts with any database of its own? Have you disabled DataSourceAutoConfiguration ? If that library uses TransactionManager then there must be an underlying DB for that library. Have you identified that?
– Himanshu Bhardwaj
yesterday






Does that 3rd party library interacts with any database of its own? Have you disabled DataSourceAutoConfiguration ? If that library uses TransactionManager then there must be an underlying DB for that library. Have you identified that?
– Himanshu Bhardwaj
yesterday














I've not disabled DataSourceAutoConfiguration since the 3rd party library interacts with its own database. I'm aware of the DB.
– suat
yesterday




I've not disabled DataSourceAutoConfiguration since the 3rd party library interacts with its own database. I'm aware of the DB.
– suat
yesterday












2 Answers
2






active

oldest

votes

















up vote
3
down vote



accepted










DefaultDatasourceConfiguration is provided to use default Spring beans e.g. DataSource named dataSource and PlatformTransactionManager named transcationManager. It's there to glue Camunda into a Spring Boot application which be default has a single data source.



Since you have created your own PlatformTransactionManager beans this disabled Spring Boot's default transaction manager bean named transcationManager (as per TransactionAutoConfiguration Spring Boot auto-configuration logic).



You most likely need to define one more transactionManager (and potentially dataSource) for Camunda's process engine, which requires it's own schema. Make sure to use the right bean name as below:



@Bean
public PlatformTransactionManager transactionManager() {
...
}


Starting from Spring 4 the bean name is the default qualifier when auto-wiring so the new transaction manager will be wired into DefaultDatasourceConfiguration as it matches the field name in the class.



Alternatively don't use DefaultDatasourceConfiguration and roll out your own configuration if Spring Boot defaults are not working for you.






share|improve this answer























  • I'll try to inject a default PlatformTransactionManager but I wouldn't prefer that if there is a sort of visibility restriction capability. Because, I might have reserved the default data source for the application's own database. I saw some posts mentioning package level restrictions but it seems they do not work anymore.
    – suat
    yesterday












  • If you are overwriting Spring Boot defaults be prepared that Camunda integration with Spring Boot won't work. Your problem is about bean names, not visibility restrictions. If you have a custom setup you might want to roll out your own version of DefaultDatasourceConfiguration.
    – Karol Dowbecki
    yesterday












  • Yes, but if Camunda didn't have access to the custom TransactionManager it might have used the default one. But I guess it does not fit the way Spring works. I won't overwrite the defaults but try to inject also the default PlatformTransactionManager which will be created by the DataSource instantiated for Camunda.
    – suat
    yesterday










  • @suat You have recognized that you are going against Spring Boot defaults. It might be easier to write your own version of DefaultDatasourceConfiguration at this point.
    – Karol Dowbecki
    yesterday










  • do you have any idea how can I inject the transactionManager you mentioned? I mean how exactly can I create the instance. I a bit got lost in configuring Camunda? Even if I write my own DefaultDatasourceConfiguration, I'll still need to provide this instance. See: github.com/camunda/camunda-bpm-spring-boot-starter/blob/… If you want I can create a dedicated question
    – suat
    yesterday




















up vote
0
down vote













Use @Qualifier annotation
The @Qualifier annotation is used to resolve the autowiring conflict, when there are multiple beans of same type.



@Bean
@Qualifier("ubldbTransactionManager")
protected PlatformTransactionManager transactionManager


and



@Bean
@Qualifier("bpdbTransactionManager")
public PlatformTransactionManager bpdbTransactionManager





share|improve this answer





















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    up vote
    3
    down vote



    accepted










    DefaultDatasourceConfiguration is provided to use default Spring beans e.g. DataSource named dataSource and PlatformTransactionManager named transcationManager. It's there to glue Camunda into a Spring Boot application which be default has a single data source.



    Since you have created your own PlatformTransactionManager beans this disabled Spring Boot's default transaction manager bean named transcationManager (as per TransactionAutoConfiguration Spring Boot auto-configuration logic).



    You most likely need to define one more transactionManager (and potentially dataSource) for Camunda's process engine, which requires it's own schema. Make sure to use the right bean name as below:



    @Bean
    public PlatformTransactionManager transactionManager() {
    ...
    }


    Starting from Spring 4 the bean name is the default qualifier when auto-wiring so the new transaction manager will be wired into DefaultDatasourceConfiguration as it matches the field name in the class.



    Alternatively don't use DefaultDatasourceConfiguration and roll out your own configuration if Spring Boot defaults are not working for you.






    share|improve this answer























    • I'll try to inject a default PlatformTransactionManager but I wouldn't prefer that if there is a sort of visibility restriction capability. Because, I might have reserved the default data source for the application's own database. I saw some posts mentioning package level restrictions but it seems they do not work anymore.
      – suat
      yesterday












    • If you are overwriting Spring Boot defaults be prepared that Camunda integration with Spring Boot won't work. Your problem is about bean names, not visibility restrictions. If you have a custom setup you might want to roll out your own version of DefaultDatasourceConfiguration.
      – Karol Dowbecki
      yesterday












    • Yes, but if Camunda didn't have access to the custom TransactionManager it might have used the default one. But I guess it does not fit the way Spring works. I won't overwrite the defaults but try to inject also the default PlatformTransactionManager which will be created by the DataSource instantiated for Camunda.
      – suat
      yesterday










    • @suat You have recognized that you are going against Spring Boot defaults. It might be easier to write your own version of DefaultDatasourceConfiguration at this point.
      – Karol Dowbecki
      yesterday










    • do you have any idea how can I inject the transactionManager you mentioned? I mean how exactly can I create the instance. I a bit got lost in configuring Camunda? Even if I write my own DefaultDatasourceConfiguration, I'll still need to provide this instance. See: github.com/camunda/camunda-bpm-spring-boot-starter/blob/… If you want I can create a dedicated question
      – suat
      yesterday

















    up vote
    3
    down vote



    accepted










    DefaultDatasourceConfiguration is provided to use default Spring beans e.g. DataSource named dataSource and PlatformTransactionManager named transcationManager. It's there to glue Camunda into a Spring Boot application which be default has a single data source.



    Since you have created your own PlatformTransactionManager beans this disabled Spring Boot's default transaction manager bean named transcationManager (as per TransactionAutoConfiguration Spring Boot auto-configuration logic).



    You most likely need to define one more transactionManager (and potentially dataSource) for Camunda's process engine, which requires it's own schema. Make sure to use the right bean name as below:



    @Bean
    public PlatformTransactionManager transactionManager() {
    ...
    }


    Starting from Spring 4 the bean name is the default qualifier when auto-wiring so the new transaction manager will be wired into DefaultDatasourceConfiguration as it matches the field name in the class.



    Alternatively don't use DefaultDatasourceConfiguration and roll out your own configuration if Spring Boot defaults are not working for you.






    share|improve this answer























    • I'll try to inject a default PlatformTransactionManager but I wouldn't prefer that if there is a sort of visibility restriction capability. Because, I might have reserved the default data source for the application's own database. I saw some posts mentioning package level restrictions but it seems they do not work anymore.
      – suat
      yesterday












    • If you are overwriting Spring Boot defaults be prepared that Camunda integration with Spring Boot won't work. Your problem is about bean names, not visibility restrictions. If you have a custom setup you might want to roll out your own version of DefaultDatasourceConfiguration.
      – Karol Dowbecki
      yesterday












    • Yes, but if Camunda didn't have access to the custom TransactionManager it might have used the default one. But I guess it does not fit the way Spring works. I won't overwrite the defaults but try to inject also the default PlatformTransactionManager which will be created by the DataSource instantiated for Camunda.
      – suat
      yesterday










    • @suat You have recognized that you are going against Spring Boot defaults. It might be easier to write your own version of DefaultDatasourceConfiguration at this point.
      – Karol Dowbecki
      yesterday










    • do you have any idea how can I inject the transactionManager you mentioned? I mean how exactly can I create the instance. I a bit got lost in configuring Camunda? Even if I write my own DefaultDatasourceConfiguration, I'll still need to provide this instance. See: github.com/camunda/camunda-bpm-spring-boot-starter/blob/… If you want I can create a dedicated question
      – suat
      yesterday















    up vote
    3
    down vote



    accepted







    up vote
    3
    down vote



    accepted






    DefaultDatasourceConfiguration is provided to use default Spring beans e.g. DataSource named dataSource and PlatformTransactionManager named transcationManager. It's there to glue Camunda into a Spring Boot application which be default has a single data source.



    Since you have created your own PlatformTransactionManager beans this disabled Spring Boot's default transaction manager bean named transcationManager (as per TransactionAutoConfiguration Spring Boot auto-configuration logic).



    You most likely need to define one more transactionManager (and potentially dataSource) for Camunda's process engine, which requires it's own schema. Make sure to use the right bean name as below:



    @Bean
    public PlatformTransactionManager transactionManager() {
    ...
    }


    Starting from Spring 4 the bean name is the default qualifier when auto-wiring so the new transaction manager will be wired into DefaultDatasourceConfiguration as it matches the field name in the class.



    Alternatively don't use DefaultDatasourceConfiguration and roll out your own configuration if Spring Boot defaults are not working for you.






    share|improve this answer














    DefaultDatasourceConfiguration is provided to use default Spring beans e.g. DataSource named dataSource and PlatformTransactionManager named transcationManager. It's there to glue Camunda into a Spring Boot application which be default has a single data source.



    Since you have created your own PlatformTransactionManager beans this disabled Spring Boot's default transaction manager bean named transcationManager (as per TransactionAutoConfiguration Spring Boot auto-configuration logic).



    You most likely need to define one more transactionManager (and potentially dataSource) for Camunda's process engine, which requires it's own schema. Make sure to use the right bean name as below:



    @Bean
    public PlatformTransactionManager transactionManager() {
    ...
    }


    Starting from Spring 4 the bean name is the default qualifier when auto-wiring so the new transaction manager will be wired into DefaultDatasourceConfiguration as it matches the field name in the class.



    Alternatively don't use DefaultDatasourceConfiguration and roll out your own configuration if Spring Boot defaults are not working for you.







    share|improve this answer














    share|improve this answer



    share|improve this answer








    edited yesterday

























    answered yesterday









    Karol Dowbecki

    13.2k62745




    13.2k62745












    • I'll try to inject a default PlatformTransactionManager but I wouldn't prefer that if there is a sort of visibility restriction capability. Because, I might have reserved the default data source for the application's own database. I saw some posts mentioning package level restrictions but it seems they do not work anymore.
      – suat
      yesterday












    • If you are overwriting Spring Boot defaults be prepared that Camunda integration with Spring Boot won't work. Your problem is about bean names, not visibility restrictions. If you have a custom setup you might want to roll out your own version of DefaultDatasourceConfiguration.
      – Karol Dowbecki
      yesterday












    • Yes, but if Camunda didn't have access to the custom TransactionManager it might have used the default one. But I guess it does not fit the way Spring works. I won't overwrite the defaults but try to inject also the default PlatformTransactionManager which will be created by the DataSource instantiated for Camunda.
      – suat
      yesterday










    • @suat You have recognized that you are going against Spring Boot defaults. It might be easier to write your own version of DefaultDatasourceConfiguration at this point.
      – Karol Dowbecki
      yesterday










    • do you have any idea how can I inject the transactionManager you mentioned? I mean how exactly can I create the instance. I a bit got lost in configuring Camunda? Even if I write my own DefaultDatasourceConfiguration, I'll still need to provide this instance. See: github.com/camunda/camunda-bpm-spring-boot-starter/blob/… If you want I can create a dedicated question
      – suat
      yesterday




















    • I'll try to inject a default PlatformTransactionManager but I wouldn't prefer that if there is a sort of visibility restriction capability. Because, I might have reserved the default data source for the application's own database. I saw some posts mentioning package level restrictions but it seems they do not work anymore.
      – suat
      yesterday












    • If you are overwriting Spring Boot defaults be prepared that Camunda integration with Spring Boot won't work. Your problem is about bean names, not visibility restrictions. If you have a custom setup you might want to roll out your own version of DefaultDatasourceConfiguration.
      – Karol Dowbecki
      yesterday












    • Yes, but if Camunda didn't have access to the custom TransactionManager it might have used the default one. But I guess it does not fit the way Spring works. I won't overwrite the defaults but try to inject also the default PlatformTransactionManager which will be created by the DataSource instantiated for Camunda.
      – suat
      yesterday










    • @suat You have recognized that you are going against Spring Boot defaults. It might be easier to write your own version of DefaultDatasourceConfiguration at this point.
      – Karol Dowbecki
      yesterday










    • do you have any idea how can I inject the transactionManager you mentioned? I mean how exactly can I create the instance. I a bit got lost in configuring Camunda? Even if I write my own DefaultDatasourceConfiguration, I'll still need to provide this instance. See: github.com/camunda/camunda-bpm-spring-boot-starter/blob/… If you want I can create a dedicated question
      – suat
      yesterday


















    I'll try to inject a default PlatformTransactionManager but I wouldn't prefer that if there is a sort of visibility restriction capability. Because, I might have reserved the default data source for the application's own database. I saw some posts mentioning package level restrictions but it seems they do not work anymore.
    – suat
    yesterday






    I'll try to inject a default PlatformTransactionManager but I wouldn't prefer that if there is a sort of visibility restriction capability. Because, I might have reserved the default data source for the application's own database. I saw some posts mentioning package level restrictions but it seems they do not work anymore.
    – suat
    yesterday














    If you are overwriting Spring Boot defaults be prepared that Camunda integration with Spring Boot won't work. Your problem is about bean names, not visibility restrictions. If you have a custom setup you might want to roll out your own version of DefaultDatasourceConfiguration.
    – Karol Dowbecki
    yesterday






    If you are overwriting Spring Boot defaults be prepared that Camunda integration with Spring Boot won't work. Your problem is about bean names, not visibility restrictions. If you have a custom setup you might want to roll out your own version of DefaultDatasourceConfiguration.
    – Karol Dowbecki
    yesterday














    Yes, but if Camunda didn't have access to the custom TransactionManager it might have used the default one. But I guess it does not fit the way Spring works. I won't overwrite the defaults but try to inject also the default PlatformTransactionManager which will be created by the DataSource instantiated for Camunda.
    – suat
    yesterday




    Yes, but if Camunda didn't have access to the custom TransactionManager it might have used the default one. But I guess it does not fit the way Spring works. I won't overwrite the defaults but try to inject also the default PlatformTransactionManager which will be created by the DataSource instantiated for Camunda.
    – suat
    yesterday












    @suat You have recognized that you are going against Spring Boot defaults. It might be easier to write your own version of DefaultDatasourceConfiguration at this point.
    – Karol Dowbecki
    yesterday




    @suat You have recognized that you are going against Spring Boot defaults. It might be easier to write your own version of DefaultDatasourceConfiguration at this point.
    – Karol Dowbecki
    yesterday












    do you have any idea how can I inject the transactionManager you mentioned? I mean how exactly can I create the instance. I a bit got lost in configuring Camunda? Even if I write my own DefaultDatasourceConfiguration, I'll still need to provide this instance. See: github.com/camunda/camunda-bpm-spring-boot-starter/blob/… If you want I can create a dedicated question
    – suat
    yesterday






    do you have any idea how can I inject the transactionManager you mentioned? I mean how exactly can I create the instance. I a bit got lost in configuring Camunda? Even if I write my own DefaultDatasourceConfiguration, I'll still need to provide this instance. See: github.com/camunda/camunda-bpm-spring-boot-starter/blob/… If you want I can create a dedicated question
    – suat
    yesterday














    up vote
    0
    down vote













    Use @Qualifier annotation
    The @Qualifier annotation is used to resolve the autowiring conflict, when there are multiple beans of same type.



    @Bean
    @Qualifier("ubldbTransactionManager")
    protected PlatformTransactionManager transactionManager


    and



    @Bean
    @Qualifier("bpdbTransactionManager")
    public PlatformTransactionManager bpdbTransactionManager





    share|improve this answer

























      up vote
      0
      down vote













      Use @Qualifier annotation
      The @Qualifier annotation is used to resolve the autowiring conflict, when there are multiple beans of same type.



      @Bean
      @Qualifier("ubldbTransactionManager")
      protected PlatformTransactionManager transactionManager


      and



      @Bean
      @Qualifier("bpdbTransactionManager")
      public PlatformTransactionManager bpdbTransactionManager





      share|improve this answer























        up vote
        0
        down vote










        up vote
        0
        down vote









        Use @Qualifier annotation
        The @Qualifier annotation is used to resolve the autowiring conflict, when there are multiple beans of same type.



        @Bean
        @Qualifier("ubldbTransactionManager")
        protected PlatformTransactionManager transactionManager


        and



        @Bean
        @Qualifier("bpdbTransactionManager")
        public PlatformTransactionManager bpdbTransactionManager





        share|improve this answer












        Use @Qualifier annotation
        The @Qualifier annotation is used to resolve the autowiring conflict, when there are multiple beans of same type.



        @Bean
        @Qualifier("ubldbTransactionManager")
        protected PlatformTransactionManager transactionManager


        and



        @Bean
        @Qualifier("bpdbTransactionManager")
        public PlatformTransactionManager bpdbTransactionManager






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered yesterday









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