使用 ant 构建 xtext 项目时出错:生成语法类失败 [英] Error while building an xtext project with ant: Generation of the Grammar classes fails

问题描述

我正在为我的学士论文的 eclipse 应用程序开发 xtext 插件项目.

I am developing an xtext plug-in project for an eclipse application for my Bachelor thesis.

我想在运行时使用执行 Mwe2Launcher 类的 ant 脚本执行生成 Xtext Artifacts"，并在临时文件夹中进行生成.

I want to do the 'Generate Xtext Artifacts' at runtime with an ant script executing the Mwe2Launcher class and do the generation in an temp folder.

我写了一个 Activator 在 temp 文件夹中创建一个项目文件夹并复制 mwe2 文件、我的语法文件和 ant 脚本.

I wrote an Activator to create in the temp folder a project folder and copy the mwe2 file, my grammar file and the ant script.

执行 Ant 脚本导致此错误:

Executing the Ant script leads to this error:

osgi> start 360
gen:
 [java] 0    INFO  StandaloneSetup    - Registering platform uri 'C:\Foo-test'
 [java] 2461 INFO  DirectoryCleaner   - Cleaning C:\Foo-test\org.xtext.example.foobar\..\org.xtext.example.foobar\src-gen
 [java] 2503 INFO  DirectoryCleaner   - Cleaning C:\Foo-test\org.xtext.example.foobar\..\org.xtext.example.foobar.ui\src-gen
 [java] 3056 INFO  LanguageConfig     - generating infrastructure for org.xtext.example.foobar.Foo with fragments : ImplicitRuntimeFragment, ImplicitUiFragment, GrammarAccessFragment, EcoreGeneratorFragment, ParseTreeConstructorFragment, ResourceFactoryFragment, XtextAntlrGeneratorFragment, JavaValidatorFragment, ImportNamespacesScopingFragment, QualifiedNamesFragment, BuilderIntegrationFragment, GeneratorFragment, FormatterFragment, LabelProviderFragment, OutlineTreeProviderFragment, QuickOutlineFragment, QuickfixProviderFragment, JavaBasedContentAssistFragment, XtextAntlrUiGeneratorFragment, TypesGeneratorFragment, XbaseGeneratorFragment, CodetemplatesGeneratorFragment
 [java] 6253 INFO  GenModelHelper     - Registered GenModel 'http://www.xtext.org/example/foobar/Foo' from 'file:/C:/Foo-test/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/Foo.genmodel'
 [java] org.eclipse.emf.common.util.WrappedException: java.io.IOException: The path '/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/foo/FooPackage.java' is unmapped
 [java]     at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.generateJava(AbstractGeneratorAdapter.java:1112)
 [java]     at org.eclipse.emf.codegen.ecore.genmodel.generator.GenPackageGeneratorAdapter.generatePackageInterface(GenPackageGeneratorAdapter.java:467)
 [java]     at org.eclipse.emf.codegen.ecore.genmodel.generator.GenPackageGeneratorAdapter.generateModel(GenPackageGeneratorAdapter.java:219)
 [java]     at org.eclipse.emf.codegen.ecore.genmodel.generator.GenBaseGeneratorAdapter.doGenerate(GenBaseGeneratorAdapter.java:221)
 [java]     at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.generate(AbstractGeneratorAdapter.java:290)
 [java]     at org.eclipse.emf.codegen.ecore.generator.Generator.generate(Generator.java:617)
 [java]     at org.eclipse.emf.codegen.ecore.generator.Generator.generate(Generator.java:528)
 [java]     at org.eclipse.xtext.generator.ecore.EcoreGeneratorFragment.doGenerate(EcoreGeneratorFragment.java:144)
 [java]     at org.eclipse.xtext.generator.ecore.EcoreGeneratorFragment.generate(EcoreGeneratorFragment.java:211)
 [java]     at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:81)
 [java]     at org.eclipse.xtext.generator.LanguageConfig.generate(LanguageConfig.java:108)
 [java]     at org.eclipse.xtext.generator.Generator.generate(Generator.java:352)
 [java]     at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:126)
 [java]     at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
 [java]     at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
 [java]     at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
 [java]     at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
 [java]     at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
 [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:97)
 [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:73)
 [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:76)
 [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:35)
 [java] Caused by: java.io.IOException: The path '/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/foo/FooPackage.java' is unmapped
 [java]     at org.eclipse.emf.ecore.resource.impl.PlatformResourceURIHandlerImpl.createOutputStream(PlatformResourceURIHandlerImpl.java:428)
 [java]     at org.eclipse.emf.ecore.resource.impl.ExtensibleURIConverterImpl.createOutputStream(ExtensibleURIConverterImpl.java:339)
 [java]     at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.createOutputStream(AbstractGeneratorAdapter.java:1440)
 [java]     at org.eclipse.emf.mwe2.ecore.CvsIdFilteringGeneratorAdapterFactoryDescriptor$IdFilteringGenModelGeneratorAdapterFactory$IdFilteringGenPackageAdapter.createOutputStream(CvsIdFilteringGeneratorAdapterFactoryDescriptor.java:39)
 [java]     at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.generateJava(AbstractGeneratorAdapter.java:1104)
 [java]     ... 21 more
 [java] org.eclipse.emf.common.util.WrappedException: java.io.IOException: The path '/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/foo/Model.java' is unmapped
 [java]     at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.generateJava(AbstractGeneratorAdapter.java:1112)
 [java]     at org.eclipse.emf.codegen.ecore.genmodel.generator.GenClassGeneratorAdapter.generateInterface(GenClassGeneratorAdapter.java:123)
 [java]     at org.eclipse.emf.codegen.ecore.genmodel.generator.GenClassGeneratorAdapter.generateModel(GenClassGeneratorAdapter.java:106)
 [java]     at org.eclipse.emf.codegen.ecore.genmodel.generator.GenBaseGeneratorAdapter.doGenerate(GenBaseGeneratorAdapter.java:221)
 [java]     at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.generate(AbstractGeneratorAdapter.java:290)
 [java]     at org.eclipse.emf.codegen.ecore.generator.Generator.generate(Generator.java:617)
 [java]     at org.eclipse.emf.codegen.ecore.generator.Generator.generate(Generator.java:528)
 [java]     at org.eclipse.xtext.generator.ecore.EcoreGeneratorFragment.doGenerate(EcoreGeneratorFragment.java:144)
 [java]     at org.eclipse.xtext.generator.ecore.EcoreGeneratorFragment.generate(EcoreGeneratorFragment.java:211)
 [java]     at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:81)
 [java]     at org.eclipse.xtext.generator.LanguageConfig.generate(LanguageConfig.java:108)
 [java]     at org.eclipse.xtext.generator.Generator.generate(Generator.java:352)
 [java]     at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:126)
 [java]     at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
 [java]     at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
 [java]     at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
 [java]     at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
 [java]     at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
 [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:97)
 [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:73)
 [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:76)
 [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:35)
 [java] Caused by: java.io.IOException: The path '/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/foo/Model.java' is unmapped
 [java]     at org.eclipse.emf.ecore.resource.impl.PlatformResourceURIHandlerImpl.createOutputStream(PlatformResourceURIHandlerImpl.java:428)
 [java]     at org.eclipse.emf.ecore.resource.impl.ExtensibleURIConverterImpl.createOutputStream(ExtensibleURIConverterImpl.java:339)
 [java]     at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.createOutputStream(AbstractGeneratorAdapter.java:1440)
 [java]     at org.eclipse.emf.mwe2.ecore.CvsIdFilteringGeneratorAdapterFactoryDescriptor$IdFilteringGenModelGeneratorAdapterFactory$IdFilteringGenClassAdapter.createOutputStream(CvsIdFilteringGeneratorAdapterFactoryDescriptor.java:73)
 [java]     at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.generateJava(AbstractGeneratorAdapter.java:1104)
 [java]     ... 21 more
 [java] org.eclipse.emf.common.util.WrappedException: java.io.IOException: The path '/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/foo/Greeting.java' is unmapped
 [java]     at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.generateJava(AbstractGeneratorAdapter.java:1112)
 [java]     at org.eclipse.emf.codegen.ecore.genmodel.generator.GenClassGeneratorAdapter.generateInterface(GenClassGeneratorAdapter.java:123)
 [java]     at org.eclipse.emf.codegen.ecore.genmodel.generator.GenClassGeneratorAdapter.generateModel(GenClassGeneratorAdapter.java:106)
 [java]     at org.eclipse.emf.codegen.ecore.genmodel.generator.GenBaseGeneratorAdapter.doGenerate(GenBaseGeneratorAdapter.java:221)
 [java]     at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.generate(AbstractGeneratorAdapter.java:290)
 [java]     at org.eclipse.emf.codegen.ecore.generator.Generator.generate(Generator.java:617)
 [java]     at org.eclipse.emf.codegen.ecore.generator.Generator.generate(Generator.java:528)
 [java]     at org.eclipse.xtext.generator.ecore.EcoreGeneratorFragment.doGenerate(EcoreGeneratorFragment.java:144)
 [java]     at org.eclipse.xtext.generator.ecore.EcoreGeneratorFragment.generate(EcoreGeneratorFragment.java:211)
 [java]     at org.eclipse.xtext.generator.CompositeGeneratorFragment.generate(CompositeGeneratorFragment.java:81)
 [java]     at org.eclipse.xtext.generator.LanguageConfig.generate(LanguageConfig.java:108)
 [java]     at org.eclipse.xtext.generator.Generator.generate(Generator.java:352)
 [java]     at org.eclipse.xtext.generator.Generator.invokeInternal(Generator.java:126)
 [java]     at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:126)
 [java]     at org.eclipse.emf.mwe.core.lib.Mwe2Bridge.invoke(Mwe2Bridge.java:34)
 [java]     at org.eclipse.emf.mwe.core.lib.AbstractWorkflowComponent.invoke(AbstractWorkflowComponent.java:201)
 [java]     at org.eclipse.emf.mwe2.runtime.workflow.AbstractCompositeWorkflowComponent.invoke(AbstractCompositeWorkflowComponent.java:35)
 [java]     at org.eclipse.emf.mwe2.runtime.workflow.Workflow.run(Workflow.java:19)
 [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:97)
 [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Runner.run(Mwe2Runner.java:73)
 [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.run(Mwe2Launcher.java:76)
 [java]     at org.eclipse.emf.mwe2.launch.runtime.Mwe2Launcher.main(Mwe2Launcher.java:35)
 [java] Caused by: java.io.IOException: The path '/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/foo/Greeting.java' is unmapped
 [java]     at org.eclipse.emf.ecore.resource.impl.PlatformResourceURIHandlerImpl.createOutputStream(PlatformResourceURIHandlerImpl.java:428)
 [java]     at org.eclipse.emf.ecore.resource.impl.ExtensibleURIConverterImpl.createOutputStream(ExtensibleURIConverterImpl.java:339)
 [java]     at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.createOutputStream(AbstractGeneratorAdapter.java:1440)
 [java]     at org.eclipse.emf.mwe2.ecore.CvsIdFilteringGeneratorAdapterFactoryDescriptor$IdFilteringGenModelGeneratorAdapterFactory$IdFilteringGenClassAdapter.createOutputStream(CvsIdFilteringGeneratorAdapterFactoryDescriptor.java:73)
 [java]     at org.eclipse.emf.codegen.ecore.generator.AbstractGeneratorAdapter.generateJava(AbstractGeneratorAdapter.java:1104)
 [java]     ... 21 more
 [java] 6768 INFO  EcoreGeneratorFragment - Diagnostic ERROR source=org.eclipse.emf.codegen.ecore code=0 Generating code data=[] [Diagnostic OK source=org.eclipse.emf.common code=0 OK data=[], Diagnostic OK source=org.eclipse.emf.common code=0 OK data=[], Diagnostic OK source=org.eclipse.emf.common code=0 OK data=[], Diagnostic OK source=org.eclipse.emf.common code=0 OK data=[], Diagnostic OK source=org.eclipse.emf.common code=0 OK data=[], Diagnostic ERROR source=org.eclipse.emf.codegen.ecore code=0 Generating Java interface org.xtext.example.foobar.foo.FooPackage failed with an unhandled exception data=[] [Diagnostic ERROR source=org.eclipse.emf.common code=0 IOException: The path '/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/foo/FooPackage.java' is unmapped data=[java.io.IOException: The path '/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/foo/FooPackage.java' is unmapped]], Diagnostic ERROR source=org.eclipse.emf.codegen.ecore code=0 Generating Java interface org.xtext.example.foobar.foo.Model failed with an unhandled exception data=[] [Diagnostic ERROR source=org.eclipse.emf.common code=0 IOException: The path '/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/foo/Model.java' is unmapped data=[java.io.IOException: The path '/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/foo/Model.java' is unmapped]], Diagnostic ERROR source=org.eclipse.emf.codegen.ecore code=0 Generating Java interface org.xtext.example.foobar.foo.Greeting failed with an unhandled exception data=[] [Diagnostic ERROR source=org.eclipse.emf.common code=0 IOException: The path '/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/foo/Greeting.java' is unmapped data=[java.io.IOException: The path '/org.xtext.example.foobar/src-gen/org/xtext/example/foobar/foo/Greeting.java' is unmapped]], Diagnostic OK source=org.eclipse.emf.common code=0 OK data=[], Diagnostic OK source=org.eclipse.emf.common code=0 OK data=[], Diagnostic OK source=org.eclipse.emf.common code=0 OK data=[], Diagnostic OK source=org.eclipse.emf.common code=0 OK data=[]]
 [java] 10385 INFO  JavaValidatorFragment - generating Java-based EValidator API
 [java] 13246 INFO  Workflow           - Done. BUILD SUCCESSFUL Total time: 27 seconds

未映射的.java"文件也未生成.整个/src-gen/...../foobar/foo"文件夹丢失.

The ".java" file which are unmapped were also not generated. The whole "/src-gen/...../foobar/foo" folder is missing.

我想这就是原因，应该修复什么.

I guess this is the reason and what should be fixed.

我真的不知道，问题出在哪里.我已经在 Eclipse 论坛 中进行了讨论，你可以找到 build.xml 但对于另一个项目，还有一个 Activator 类来激活插件并执行复制内容并执行 ant 脚本，您还可以找到我使用的 mwe2 文件.

I really don't know, where the problem is. I already had a discussion in an Eclipse forum there you can find the build.xml but for another project, also an Activator class to activate the plugin and do the copy stuff and execute the ant script, also you find the mwe2 file I use.

推荐答案

您必须确保将临时文件夹注册为工作流中的平台 URI.Xtext 使用 EMF 的平台:/资源 URI 方案.因此，必须注册平台根目录，以便根据平台路径定义从文件系统上的绝对位置到逻辑位置的路径映射.您也可以尝试复制 .project 文件.如果您已经将临时文件夹注册为平台路径，我认为这会有所帮助.

You have to make sure that your register your temp folder as platform URI in your workflow. Xtext uses the platform:/resource URI scheme of EMF. Therefore, the platform root has to be registered in order to define the path mappings from absolute locations on the filesystem to logical locations according the the platform path. You could try to copy the .project file, too. I assume that will help if you already register the temp folder as platform path.

这篇关于使用 ant 构建 xtext 项目时出错:生成语法类失败的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！