command-line-interface - Wildfly CLI 添加/更新系统属性批处理和 if-else 问题

Question

我测试了通过 Wildfly Maven 插件在 Wildfly(版本 8.2.1)standalone.xml 中添加系统属性的几种变体。基本上，如果系统属性不存在，它会添加一个系统属性，如果存在则更改其值。理想情况下，我想要一个批处理模式的 CLI 脚本，带有嵌套的 if-else。然而，问题是:

它在批处理模式下不起作用

即使在非批处理模式下，嵌套的 if-else 也不起作用

如果在 CLI 脚本中执行类似的结果 - 批处理和嵌套的 if-else 不起作用

这是我的 pom.xml 中的插件部分

<plugin>
    <groupId>org.wildfly.plugins</groupId>
    <artifactId>wildfly-maven-plugin</artifactId>
    <version>1.0.2.Final</version>
    <executions>
        <execution>
            <id>addConfig</id>
            <phase>install</phase>
            <goals><goal>execute-commands</goal></goals>
            <configuration>
                <execute-commands>
                    <!-- <batch>true</batch>  Issue #1. Not working in batch mode -->
                    <batch>false</batch> <!-- This works -->
                    <commands>
                        <command>if (outcome != success) of /system-property=app.env:read-resource</command>
                        <command>/system-property=app.env:add(value=local)</command>
                        <command>else</command>
                        <command>/system-property=app.env:remove</command>
                        <command>/system-property=app.env:add(value=local)</command>
                        <command>end-if</command>
                    </commands>

                    <!--  Issue #2. Nested if-else not working, even in non-batch mode -->
                    <!--
                    <batch>false</batch>
                    <commands>
                        <command>if (outcome != success) of /system-property=app.env:read-resource</command>
                            <command>/system-property=app.env:add(value=local)</command>
                        <command>else</command>
                        <command>if (result.value == qa) of /system-property=app.env:read-resource</command>
                            <command>/system-property=app.env:remove</command>
                            <command>/system-property=app.env:add(value=local)</command>
                        <command>else</command>
                            <command>/system-property=app.env:remove</command>
                            <command>/system-property=app.env:add(value=qa)</command>
                        <command>end-if</command>
                        <command>end-if</command>
                    </commands>
                    -->

                    <!--  Issue #3. Batch and nested if-else not working in CLI script. -->
                    <!--
                    <scripts>
                        <script>target/classes/scripts/add-config.cli</script>
                    </scripts>
                    -->
                </execute-commands>
            </configuration>    
        </execution>            
    </executions>
</plugin>   

如果在批处理模式下，这是异常(exception):

org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.wildfly.plugins:wildfly-maven-plugin:1.0.2.Final:execute-commands (addConfig)
 on project jboss-config: Execution addConfig of goal org.wildfly.plugins:wildfly-maven-plugin:1.0.2.Final:execute-commands failed: Command 'if (outcome != success) of /system-property=app.env:read-resource' is invalid. The command is not allowed in a batch.
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution addConfig of goal org.wildfly.plugins:wildfly-maven-plugin:1.0.2.Final:execute-commands failed: Command 'if (outcome != success) of /system-property=app.env:read-resource' is invalid. The command is not allowed in a batch.
        ... 20 more
Caused by: java.lang.IllegalArgumentException: Command 'if (outcome != success) of /system-property=app.env:read-resource' is invalid. The command is not allowed in a batch.
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        ... 21 more
Caused by: org.jboss.as.cli.operation.OperationFormatException: The command is not allowed in a batch.
        ... 24 more

如果它具有嵌套的 if-else，非批处理，则这是异常(exception):

org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.wildfly.plugins:wildfly-maven-plugin:1.0.2.Final:execute-commands (addConfig)
 on project jboss-config: Execution addConfig of goal org.wildfly.plugins:wildfly-maven-plugin:1.0.2.Final:execute-commands failed: Command 'if (result.value == qa) of /system-property=app.env:read-resource' is invalid. if is not allowed while in batch mode.
        ...
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution addConfig of goal org.wildfly.plugins:wildfly-maven-plugin:1.0.2.Final:execute-commands failed: Command 'if (result.value == qa) of /system-property=app.env:read-resource' is invalid. if is not allowed while in batch mode.
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:145)
        ... 20 more
Caused by: java.lang.IllegalArgumentException: Command 'if (result.value == qa) of /system-property=app.env:read-resource' is invalid. if is not allowed while in batch mode.
        at org.wildfly.plugin.cli.Commands.executeCommands(Commands.java:178)
        ... 21 more
Caused by: org.jboss.as.cli.CommandFormatException: if is not allowed while in batch mode.
        at org.jboss.as.cli.handlers.ifelse.IfHandler.doHandle(IfHandler.java:130)
        ... 24 more

为了完整起见，这是我要运行的脚本

batch
if (outcome != success) of /system-property=app.env:read-resource
    /system-property=app.env:add(app.env=local)
else
if (result.value == qa) of /system-property=app.env:read-resource
    /system-property=app.env:remove
    /system-property=app.env:add(app.env=local)
else
    /system-property=app.env:remove
    /system-property=app.env:add(app.env=qa)
end-if
end-if
run-batch

以及实际运行的内容:

if (outcome != success) of /system-property=app.env:read-resource
    /system-property=app.env:add(value=local)
else
    /system-property=app.env:remove
    /system-property=app.env:add(value=local)
end-if

Answer 1

问题是在批处理模式下不允许 if-else 流，就像语句已经作为批处理执行一样。这也意味着 nested if statements aren't allowed .

虽然像下面这样的东西会起作用

if (outcome != success) of /system-property=app.env:read-resource
    /system-property=app.env:add(value=local)
end-if

if (result.value == qa) of /system-property=app.env:read-resource
    /system-property=app.env:remove
    /system-property=app.env:add(value=local)
else
    /system-property=app.env:remove
    /system-property=app.env:add(value=qa)
end-if

如果该属性丢失，这将添加它，删除它然后重新添加它。这是让它工作的唯一方法，而且不是一项昂贵的操作。

请注意，您发布的脚本有点过时。添加系统属性时 value属性用于 add手术。还有 test 的混合和 app.env对于属性名称。