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使用 Maven 构建 XText 2.0 和 XPand 1.1

发布于 2024-12-08 14:13:59 字数 625 浏览 0 评论 0原文

我正在寻找使用 XText 2.0 的项目的示例 pom.xml，尤其是“普通”maven 项目中的代码生成器 XPand 1.1。

我已经花时间在谷歌上，但我可能使用了错误的术语，或者没有例子。

我已经有一个 xtext 0.7.2 的工作 pom，我想将项目更新到 2.0。但我不知道从哪里开始。 我目前拥有的是 4 个 maven 项目的结构：

  • mydsl
  • mydsl.generator （未使用）
  • mydsl.ui
  • 应用程序（包含用于生成代码的 xpand 模板）

mydsl 项目是 xtext 0.7.2 项目，并在 (< code>mydsl) 提供生成的类作为 Maven 依赖项。

应用程序有一个mwe工作流程和xpand模板来生成源代码。这个项目有一个对 mydsl 的 Maven 依赖，

因为我还没有实现这么多的 gui 编辑器功能，我什至会扔掉所有的 xtext 东西（除了 grammer 和 xpand 模板）并构建一个完整的新 xtext 2个项目。

但我真的不知道如何为（新的）mydsl 项目构建 pom。

原文

I am looking for an example pom.xml for an project using XText 2.0, especially the code generator XPand 1.1 in a "plain" maven project.

I already spend time with google, but may I use the wrong terms, or there is no example.

I have an already working pom for xtext 0.7.2 and I want to update the project to 2.0. but I don't know where to start.
What I have at the moment is this structure of 4 maven projects:

  • mydsl
  • mydsl.generator (not used)
  • mydsl.ui
  • application (containing xpand templates to generate code)

The mydsl projects are xtext 0.7.2 projects with and additional pom in (mydsl) that provides the generated classes as maven dependency.

The application has a mwe workflow and xpand template to generate source code. This project has a maven dependency to mydsl

Because I have not implemented so many gui editor functionality I would even except to throw all the xtext stuff away (except the grammer and xpand templates) and build a complete new xtext 2 project.

But I have really no glue how to build the pom for the (new) mydsl project.

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评论（2）

罗罗贝儿 2024-12-15 14:13:59

我找到了真正的 maven xtext2 项目。

检查这个：
http://code.google.com/a/eclipselabs.org/p/喷雾/

I've found real maven xtext2 project.

Check this one:
http://code.google.com/a/eclipselabs.org/p/spray/

回复 原文
眼泪淡了忧伤 2024-12-15 14:13:59

最棘手的部分之一是，在 XText2 语法项目中，xtend-gen 文件夹中会有一个名为 <>Generator.java 的文件。该文件不是由 Generate<>.mwe2 工作流程创建的，而是由某些 Eclipse 魔法创建的。但是编译代码需要这个文件！

所以我的解决方案是让 eclipse 生成该文件，然后像任何正常的手写类一样将其添加到 svn 中。

然后只需要将这个pom添加到项目中即可。所以maven也会启动工作流程。
但有一个缺点：工作流程还会生成相邻项目的类，.ui 和 .test，因此它需要清单文件。为了克服 Maven 发布插件的麻烦，可以添加一个父 Maven 项目，其中包含 grammer 项目和两个虚拟项目 .ui 和 .test

包含 xtext 语法的项目的 Pom：

...
<dependencies>
    <dependency>
        <groupId>org.eclipse.plugins</groupId>
        <artifactId>org.eclipse.xtext.generator</artifactId>
        <version>2.0.0.v201106070531</version>
    </dependency>
    <dependency>
        <groupId>org.eclipse.plugins</groupId>
        <artifactId>org.eclipse.emf.codegen.ecore</artifactId>
        <version>2.6.1.v20100914-1218</version>
    </dependency>
    <dependency>
        <groupId>org.antlr.generator</groupId>
        <artifactId>org.antlr.generator</artifactId>
        <version>3.2.0</version>
    </dependency>
    <dependency>
        <groupId>org.eclipse.plugins</groupId>
        <artifactId>org.eclipse.emf.mwe2.launch</artifactId>
        <version>2.0.0.v201106070634</version>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.13</version>
    </dependency>
</dependencies>
<build>
    <sourceDirectory>src</sourceDirectory>
    <resources>
        <resource>
            <directory>src</directory>
        </resource>
        <resource>
            <directory>src-gen</directory>
        </resource>
    </resources>
    <plugins>
        <plugin>
            <artifactId>maven-clean-plugin</artifactId>
            <version>2.4.1</version>
            <configuration>
                <filesets>
                    <fileset>
                        <directory>${basedir}/src-gen</directory>
                        <includes>
                            <include>com/</include>
                            <include>org/</include>
                        </includes>
                        <followSymlinks>false</followSymlinks>
                    </fileset>
                    <fileset>
                        <directory>${basedir}/xtend-gen</directory>
                        <includes>
                            <include>com/</include>
                            <include>org/</include>
                        </includes>
                        <excludes>
                            <exclude>**/ProdDef2Generator.java</exclude>
                        </excludes>
                        <followSymlinks>false</followSymlinks>
                    </fileset>
                </filesets>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.fornax.toolsupport</groupId>
            <artifactId>fornax-oaw-m2-plugin</artifactId>
            <version>3.2.1</version>

            <configuration>
                <!-- <checkResources> <checkResource> src/com\queomedia\bcsweb\productdefinition\ProdDef2.xtext 
                    </checkResource> </checkResources> -->
                <outletSrcDir>src-gen</outletSrcDir>
                <outletSrcOnceDir>src</outletSrcOnceDir>
                <rootDir>${project.basedir}</rootDir>
            </configuration>
            <executions>
                <execution>
                    <id>generateGrammer</id>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>run-workflow</goal>
                    </goals>


                    <configuration>
                        <workflowDescriptor>src/org/test/test/GenerateProdDef2.mwe2</workflowDescriptor>
                        <workflowEngine>mwe2</workflowEngine>
                        <timestampFileName>generator-generateGrammer-timestamp.tmp</timestampFileName>
                    </configuration>
                </execution>
            </executions>
        </plugin>


        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>build-helper-maven-plugin</artifactId>
            <version>1.3</version>
            <executions>
                <execution>
                    <id>add-source</id>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>add-source</goal>
                    </goals>
                    <configuration>
                        <sources>
                            <source>src-gen</source>
                            <source>xtend-gen</source>
                        </sources>
                    </configuration>
                </execution>
            </executions>
        </plugin>

        <!-- The plugin.xml must be included, but is not on a resource path -->
        <plugin>
            <artifactId>maven-antrun-plugin</artifactId>
            <executions>
                <execution>
                    <phase>process-resources</phase>
                    <configuration>
                        <tasks>
                            <copy todir="${basedir}/target/classes" file="${basedir}/plugin.xml" />
                        </tasks>
                    </configuration>
                    <goals>
                        <goal>run</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>

使用语法和 dsl 进行源代码生成的项目的 POM。这与 xtext 0.7.1 几乎相同。但有一点不同。 mwe 文件中使用的 MweReader 不再存在（自 xtext 1.0.1 起），因此需要使用 org.eclipse.xtext.mwe.Reader。该读取器不再将模型文件作为输入，而是将文件的路径作为输入。它还将其存储在所谓的“插槽”中。但这个槽是一个元素列表。因此需要将 中的 FOR 更改为 FOREACH

<dependencies>

    <dependency>
        <groupId>test.xtext</groupId>           
        <artifactId>grammerProject</artifactId>         
        <version>1.0.0</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.eclipse.plugins</groupId>
        <artifactId>org.eclipse.xtext.generator</artifactId>
        <version>2.0.0.v201106070531</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.eclipse.plugins</groupId>
        <artifactId>org.eclipse.emf.codegen.ecore</artifactId>
        <version>2.6.1.v20100914-1218</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.antlr.generator</groupId>
        <artifactId>org.antlr.generator</artifactId>
        <version>3.2.0</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.eclipse.plugins</groupId>
        <artifactId>org.eclipse.emf.mwe2.launch</artifactId>
        <version>2.0.0.v201106070634</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.13</version>
        <scope>provided</scope>
    </dependency>
</dependencies>
<build>
    <resources>
        <resource>
            <directory>src/main/resources</directory>
        </resource>
        <resource>
        <!-- there is the .mwe workflow located, in a sub dir called model, the dsl and in an other sub dir called templates, the xpt files. -->
            <directory>src/main/xtext</directory>               
        </resource>
    </resources>
    <plugins>
        <plugin>
            <groupId>org.fornax.toolsupport</groupId>
            <artifactId>fornax-oaw-m2-plugin</artifactId>
            <version>3.2.1</version>
            <configuration>

                <rootDir>${project.basedir}</rootDir>

                <!--  run only if this file is changed -->
                <checkResources>
                    <checkResource>
                        src/main/xtext/model/GermanDesk.proddef2
                    </checkResource>
                </checkResources>
                <!--  
                <outletSrcDir>src-gen</outletSrcDir>
                <outletSrcOnceDir>src</outletSrcOnceDir>
                -->                 
            </configuration>
            <executions>
                <execution>
                    <id>generateJavaClassesFromXText</id>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>run-workflow</goal>
                    </goals>
                    <configuration>
                        <!-- Die Workflow-Description wird in einem Ressourcen-Verzeichnis gesucht. -->
                        <workflowDescriptor>ProdDef2JavaGenerator.mwe</workflowDescriptor>
                        <workflowEngine>mwe</workflowEngine>
                        <properties>
                            <projectBasedir>${project.basedir}</projectBasedir>
                        </properties>
                    </configuration>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>build-helper-maven-plugin</artifactId>
            <executions>
                <execution>
                    <id>add-source</id>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>add-source</goal>
                    </goals>
                    <configuration>     
                        <sources>
                            <source>${basedir}/target/generated-sources</source>
                        </sources>
                    </configuration>
                </execution>
            </executions>
        </plugin>

该项目中的 Mwe 工作流程

<workflow>  
    <property name="project.src.directory" value="${projectBasedir}/src/main"/>
    <property name="project.target.directory" value="${projectBasedir}/target"/>

    <property name="modelFileDir" value="${project.src.directory}/xtext/model/"/>   
    <property name="srcGenTargetDir" value="${project.target.directory}/generated-sources"/>    
    <property name="templateTargetDir" value="${project.target.directory}/generated-sources-templates"/>

    <bean class="org.eclipse.emf.mwe.utils.StandaloneSetup" platformUri=".."/>

    <component class="org.eclipse.emf.mwe.utils.DirectoryCleaner" directory="${srcGenTargetDir}"/>
    <component class="org.eclipse.emf.mwe.utils.DirectoryCleaner" directory="${templateTargetDir}"/>
    <component class="org.eclipse.xtext.mwe.Reader" path="${modelFileDir}" >
        <register class="com.queomedia.bcsweb.productdefinition.ProdDef2StandaloneSetup"/>
        <load slot='model' type='Model'/>
    </component>

    <component class="org.eclipse.xpand2.Generator">
        <metaModel class="org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel"/>
        <fileEncoding value="UTF-8"/>
        <expand value="templates::ProductCustomClass::productCustomClasses FOREACH model"/>
        <genPath value="${templateTargetDir}"/>

        <beautifier class="org.eclipse.xpand2.output.JavaBeautifier"/>  
    </component>

    <component class="org.eclipse.xpand2.Generator">
        <metaModel class="org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel"/>
        <fileEncoding value="UTF-8"/>       
        <expand value="templates::Main::main FOREACH model"/>
        <genPath value="${srcGenTargetDir}"/>

        <beautifier class="org.eclipse.xpand2.output.JavaBeautifier"/>
    </component>

</workflow>

One of the most trickiest parts is that in an XText2 grammer project there will be a file in xtend-gen folder woth name <<project>>Generator.java. That file is not created by the Generate<<project>>.mwe2 workflow, instead it seams that it is created by some eclipse magic. But this file is needed to compile the code!

So my solution is to let eclipse generate that file, and then add it to the svn like any normal hand written class.

Then one only need to add this pom to the project. So maven will start the Workflow too.
But there is one drawback: the workflow also generate the classes for the neighbour projects, .ui and .test and therefor it needs there manifest files. To overcome the trouble of the maven release plugin, one could add a parent maven project, that contains the grammer project and the two dummies .ui and .test

Pom of project containing the xtext grammer:

...
<dependencies>
    <dependency>
        <groupId>org.eclipse.plugins</groupId>
        <artifactId>org.eclipse.xtext.generator</artifactId>
        <version>2.0.0.v201106070531</version>
    </dependency>
    <dependency>
        <groupId>org.eclipse.plugins</groupId>
        <artifactId>org.eclipse.emf.codegen.ecore</artifactId>
        <version>2.6.1.v20100914-1218</version>
    </dependency>
    <dependency>
        <groupId>org.antlr.generator</groupId>
        <artifactId>org.antlr.generator</artifactId>
        <version>3.2.0</version>
    </dependency>
    <dependency>
        <groupId>org.eclipse.plugins</groupId>
        <artifactId>org.eclipse.emf.mwe2.launch</artifactId>
        <version>2.0.0.v201106070634</version>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.13</version>
    </dependency>
</dependencies>
<build>
    <sourceDirectory>src</sourceDirectory>
    <resources>
        <resource>
            <directory>src</directory>
        </resource>
        <resource>
            <directory>src-gen</directory>
        </resource>
    </resources>
    <plugins>
        <plugin>
            <artifactId>maven-clean-plugin</artifactId>
            <version>2.4.1</version>
            <configuration>
                <filesets>
                    <fileset>
                        <directory>${basedir}/src-gen</directory>
                        <includes>
                            <include>com/</include>
                            <include>org/</include>
                        </includes>
                        <followSymlinks>false</followSymlinks>
                    </fileset>
                    <fileset>
                        <directory>${basedir}/xtend-gen</directory>
                        <includes>
                            <include>com/</include>
                            <include>org/</include>
                        </includes>
                        <excludes>
                            <exclude>**/ProdDef2Generator.java</exclude>
                        </excludes>
                        <followSymlinks>false</followSymlinks>
                    </fileset>
                </filesets>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.fornax.toolsupport</groupId>
            <artifactId>fornax-oaw-m2-plugin</artifactId>
            <version>3.2.1</version>

            <configuration>
                <!-- <checkResources> <checkResource> src/com\queomedia\bcsweb\productdefinition\ProdDef2.xtext 
                    </checkResource> </checkResources> -->
                <outletSrcDir>src-gen</outletSrcDir>
                <outletSrcOnceDir>src</outletSrcOnceDir>
                <rootDir>${project.basedir}</rootDir>
            </configuration>
            <executions>
                <execution>
                    <id>generateGrammer</id>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>run-workflow</goal>
                    </goals>


                    <configuration>
                        <workflowDescriptor>src/org/test/test/GenerateProdDef2.mwe2</workflowDescriptor>
                        <workflowEngine>mwe2</workflowEngine>
                        <timestampFileName>generator-generateGrammer-timestamp.tmp</timestampFileName>
                    </configuration>
                </execution>
            </executions>
        </plugin>


        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>build-helper-maven-plugin</artifactId>
            <version>1.3</version>
            <executions>
                <execution>
                    <id>add-source</id>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>add-source</goal>
                    </goals>
                    <configuration>
                        <sources>
                            <source>src-gen</source>
                            <source>xtend-gen</source>
                        </sources>
                    </configuration>
                </execution>
            </executions>
        </plugin>

        <!-- The plugin.xml must be included, but is not on a resource path -->
        <plugin>
            <artifactId>maven-antrun-plugin</artifactId>
            <executions>
                <execution>
                    <phase>process-resources</phase>
                    <configuration>
                        <tasks>
                            <copy todir="${basedir}/target/classes" file="${basedir}/plugin.xml" />
                        </tasks>
                    </configuration>
                    <goals>
                        <goal>run</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>

POM of the project that uses the grammer and a dsl for source code generation. This is nearly the same as it was for xtext 0.7.1. But with one difference. The MweReader used in the mwe file does not exit any more (since xtext 1.0.1) So one need to use the org.eclipse.xtext.mwe.Reader. This reader not longer take the model file as input, but the path to the file. And it also stores it in a so called "slot". But this slot is an LIST of elements. So one need to change: the FOR in <expand value="templates::Main::main FOR model"/> to FOREACH

<dependencies>

    <dependency>
        <groupId>test.xtext</groupId>           
        <artifactId>grammerProject</artifactId>         
        <version>1.0.0</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.eclipse.plugins</groupId>
        <artifactId>org.eclipse.xtext.generator</artifactId>
        <version>2.0.0.v201106070531</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.eclipse.plugins</groupId>
        <artifactId>org.eclipse.emf.codegen.ecore</artifactId>
        <version>2.6.1.v20100914-1218</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.antlr.generator</groupId>
        <artifactId>org.antlr.generator</artifactId>
        <version>3.2.0</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.eclipse.plugins</groupId>
        <artifactId>org.eclipse.emf.mwe2.launch</artifactId>
        <version>2.0.0.v201106070634</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.13</version>
        <scope>provided</scope>
    </dependency>
</dependencies>
<build>
    <resources>
        <resource>
            <directory>src/main/resources</directory>
        </resource>
        <resource>
        <!-- there is the .mwe workflow located, in a sub dir called model, the dsl and in an other sub dir called templates, the xpt files. -->
            <directory>src/main/xtext</directory>               
        </resource>
    </resources>
    <plugins>
        <plugin>
            <groupId>org.fornax.toolsupport</groupId>
            <artifactId>fornax-oaw-m2-plugin</artifactId>
            <version>3.2.1</version>
            <configuration>

                <rootDir>${project.basedir}</rootDir>

                <!--  run only if this file is changed -->
                <checkResources>
                    <checkResource>
                        src/main/xtext/model/GermanDesk.proddef2
                    </checkResource>
                </checkResources>
                <!--  
                <outletSrcDir>src-gen</outletSrcDir>
                <outletSrcOnceDir>src</outletSrcOnceDir>
                -->                 
            </configuration>
            <executions>
                <execution>
                    <id>generateJavaClassesFromXText</id>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>run-workflow</goal>
                    </goals>
                    <configuration>
                        <!-- Die Workflow-Description wird in einem Ressourcen-Verzeichnis gesucht. -->
                        <workflowDescriptor>ProdDef2JavaGenerator.mwe</workflowDescriptor>
                        <workflowEngine>mwe</workflowEngine>
                        <properties>
                            <projectBasedir>${project.basedir}</projectBasedir>
                        </properties>
                    </configuration>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>build-helper-maven-plugin</artifactId>
            <executions>
                <execution>
                    <id>add-source</id>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>add-source</goal>
                    </goals>
                    <configuration>     
                        <sources>
                            <source>${basedir}/target/generated-sources</source>
                        </sources>
                    </configuration>
                </execution>
            </executions>
        </plugin>

Mwe workflow in that project

<workflow>  
    <property name="project.src.directory" value="${projectBasedir}/src/main"/>
    <property name="project.target.directory" value="${projectBasedir}/target"/>

    <property name="modelFileDir" value="${project.src.directory}/xtext/model/"/>   
    <property name="srcGenTargetDir" value="${project.target.directory}/generated-sources"/>    
    <property name="templateTargetDir" value="${project.target.directory}/generated-sources-templates"/>

    <bean class="org.eclipse.emf.mwe.utils.StandaloneSetup" platformUri=".."/>

    <component class="org.eclipse.emf.mwe.utils.DirectoryCleaner" directory="${srcGenTargetDir}"/>
    <component class="org.eclipse.emf.mwe.utils.DirectoryCleaner" directory="${templateTargetDir}"/>
    <component class="org.eclipse.xtext.mwe.Reader" path="${modelFileDir}" >
        <register class="com.queomedia.bcsweb.productdefinition.ProdDef2StandaloneSetup"/>
        <load slot='model' type='Model'/>
    </component>

    <component class="org.eclipse.xpand2.Generator">
        <metaModel class="org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel"/>
        <fileEncoding value="UTF-8"/>
        <expand value="templates::ProductCustomClass::productCustomClasses FOREACH model"/>
        <genPath value="${templateTargetDir}"/>

        <beautifier class="org.eclipse.xpand2.output.JavaBeautifier"/>  
    </component>

    <component class="org.eclipse.xpand2.Generator">
        <metaModel class="org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel"/>
        <fileEncoding value="UTF-8"/>       
        <expand value="templates::Main::main FOREACH model"/>
        <genPath value="${srcGenTargetDir}"/>

        <beautifier class="org.eclipse.xpand2.output.JavaBeautifier"/>
    </component>

</workflow>
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