Clever Geek Handbook

InterSystems IRIS集成产品中的Java / .Net网关

InterSystems IRIS中的网关是InterSystems IRIS核心与Java / .Net应用程序代码之间的通信机制。借助网关，您既可以使用ObjectScript和ObjectScript对象中的Java / .NET对象，也可以使用Java / .NET中的全局变量。网关可以在任何地方运行-本地，远程服务器上，泊坞窗中。

在本文中，我将向您展示如何使用.Net / Java代码轻松开发和容器化集成产品。为了与Java / .Net语言的代码进行交互，我们将使用PEX，它提供了机会以Java / .Net语言实现集成产品的任何元素。

对于我们的示例，我们将开发与Apache Kafka的集成。

建筑

Apache Kafka是流行的消息代理。在Kafka中有一个主题（主题）消息，发布者（发布者）在其中编写消息，并在读取这些消息的线程上拥有订阅者（消费者）。

首先，我们将编写一个Java业务操作，该操作将消息发布到Apache Kafka。然后，我们将在C＃中添加一个业务服务，该服务将读取，保存和传输消息，以在InterSystems IRIS中进行进一步处理。

我们的解决方案将在docker中运行，如下所示：

Java网关

首先，我们将使用Java开发业务操作，以将消息发送到Apache Kafka。该代码可以在任何Java IDE中编写，如下所示：

  • PEX - com.intersystems.enslib.pex.BusinessOperation.

  • — -

  • OnInit Apache Kafka InterSystems IRIS

  • OnTearDown Apache Kafka ( ).

  • OnMessage dc.KafkaRequest Apache Kafka.

- Docker .

-:

FROM openjdk:8 AS builder

ARG APP_HOME=/tmp/app

COPY src $APP_HOME/src

COPY --from=intersystemscommunity/jgw:latest /jgw/*.jar $APP_HOME/jgw/

WORKDIR $APP_HOME/jar/
ADD https://repo1.maven.org/maven2/org/apache/kafka/kafka-clients/2.5.0/kafka-clients-2.5.0.jar .
ADD https://repo1.maven.org/maven2/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar .
ADD https://repo1.maven.org/maven2/ch/qos/logback/logback-core/1.2.3/logback-core-1.2.3.jar .
ADD https://repo1.maven.org/maven2/org/slf4j/slf4j-api/1.7.30/slf4j-api-1.7.30.jar .

WORKDIR $APP_HOME/src

RUN javac -classpath $APP_HOME/jar/*:$APP_HOME/jgw/* dc/rmq/KafkaOperation.java && \
    jar -cvf $APP_HOME/jar/KafkaOperation.jar dc/rmq/KafkaOperation.class

FROM intersystemscommunity/jgw:latest

COPY --from=builder /tmp/app/jar/*.jar $GWDIR/

, ( , ):

FROM openjdk:8 AS builder

JDK8 , . 

ARG APP_HOME=/tmp/app
COPY src $APP_HOME/src

/src /tmp/app.

COPY --from=intersystemscommunity/jgw:latest /jgw/*.jar $APP_HOME/jgw/

Java Gateway /tmp/app/jgw.

WORKDIR $APP_HOME/jar/
ADD https://repo1.maven.org/maven2/org/apache/kafka/kafka-clients/2.5.0/kafka-clients-2.5.0.jar .
ADD https://repo1.maven.org/maven2/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar .
ADD https://repo1.maven.org/maven2/ch/qos/logback/logback-core/1.2.3/logback-core-1.2.3.jar .
ADD https://repo1.maven.org/maven2/org/slf4j/slf4j-api/1.7.30/slf4j-api-1.7.30.jar .

WORKDIR $APP_HOME/src

RUN javac -classpath $APP_HOME/jar/*:$APP_HOME/jgw/* dc/rmq/KafkaOperation.java && \
    jar -cvf $APP_HOME/jar/KafkaOperation.jar dc/rmq/KafkaOperation.class

- javac/jar jar . maven gradle.

FROM intersystemscommunity/jgw:latest

COPY --from=builder /tmp/app/jar/*.jar $GWDIR/

, , jar Java , Java .

.Net Gateway

.Net, Apache Kafka. .Net IDE .

:

  • PEX - InterSystems.EnsLib.PEX.BusinessService.

  • — -

  • OnInit Apache Kafka, Apache Kafka InterSystems IRIS

  • OnTearDown Apache Kafka ( )

  • OnMessage Apache Kafka Ens.StringContainer -

- Docker .

-:

FROM mcr.microsoft.com/dotnet/core/sdk:2.1 AS build

ENV ISC_PACKAGE_INSTALLDIR /usr/irissys
ENV GWLIBDIR lib
ENV ISC_LIBDIR ${ISC_PACKAGE_INSTALLDIR}/dev/dotnet/bin/Core21

WORKDIR /source
COPY --from=store/intersystems/iris-community:2020.2.0.211.0 $ISC_LIBDIR/*.nupkg $GWLIBDIR/

# copy csproj and restore as distinct layers
COPY *.csproj ./
RUN dotnet restore

# copy and publish app and libraries
COPY . .
RUN dotnet publish -c release -o /app

# final stage/image
FROM mcr.microsoft.com/dotnet/core/runtime:2.1
WORKDIR /app
COPY --from=build /app ./

# Configs to start the Gateway Server
RUN cp KafkaConsumer.runtimeconfig.json IRISGatewayCore21.runtimeconfig.json && \
    cp KafkaConsumer.deps.json IRISGatewayCore21.deps.json

ENV PORT 55556

CMD dotnet IRISGatewayCore21.dll $PORT 0.0.0.0

, :

FROM mcr.microsoft.com/dotnet/core/sdk:2.1 AS build

.Net Core 2.1 SDK .

ENV ISC_PACKAGE_INSTALLDIR /usr/irissys
ENV GWLIBDIR lib
ENV ISC_LIBDIR ${ISC_PACKAGE_INSTALLDIR}/dev/dotnet/bin/Core21

WORKDIR /source
COPY --from=store/intersystems/iris-community:2020.2.0.211.0 $ISC_LIBDIR/*.nupkg $GWLIBDIR/

.Net Gateway InterSystems IRIS:

# copy csproj and restore as distinct layers
COPY *.csproj ./
RUN dotnet restore

# copy and publish app and libraries
COPY . .
RUN dotnet publish -c release -o /app

-.

FROM mcr.microsoft.com/dotnet/core/runtime:2.1
WORKDIR /app
COPY --from=build /app ./

.

RUN cp KafkaConsumer.runtimeconfig.json IRISGatewayCore21.runtimeconfig.json && \
    cp KafkaConsumer.deps.json IRISGatewayCore21.deps.json

.Net , .

ENV PORT 55556

CMD dotnet IRISGatewayCore21.dll $PORT 0.0.0.0

55556, .

!

docker-compose, ( UI Apache Kafka, ).

:

:

:

git clone https://github.com/intersystems-community/pex-demo.git
cd pex-demo
docker-compose pull
docker-compose up -d

  • InterSystems IRIS Java/.Net

  • Java/.Net InterSystems ObjectScript , InterSystems ObjectScript Java/.Net

  • , Docker



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