覆盖在将项目作为Eclipse应用程序运行期间添加的依赖项

问题描述

我试图在将插件项目作为Eclipse应用程序运行时编写自定义启动配置。我必须在有限的依赖项下运行插件。是否可以覆盖 org.eclipse.pde.launching.EclipseApplicationLaunchConfiguration 中的方法？如果是，那我该怎么办？

I am trying to write a custom launch configuration while running a plugin project as an eclipse application. I have to run the plugin with limited dependencies. Is it possible to override methods in org.eclipse.pde.launching.EclipseApplicationLaunchConfiguration ? If yes then how do I do it ?

推荐答案

要编写自定义配置文件

1. 扩展类 org.eclipse.jdt.junit.launcher.JUnitLaunchShortcut


2. 覆盖方法 createLaunchConfiguration


3. 调用 super.createLaunchConfiguration（element）将返回 ILaunchConfigurationWorkingCopy


4. 使用副本并设置自己需要修改的属性


5. 可以在<$ c $中找到属性c> IPDELauncherConstants

1. Extend the class org.eclipse.jdt.junit.launcher.JUnitLaunchShortcut
2. Override the method createLaunchConfiguration
3. Invoking super.createLaunchConfiguration(element) will return a ILaunchConfigurationWorkingCopy
4. Use the copy and set your own attributes that have to be modified
5. Attributes can be found in IPDELauncherConstants

默认情况下，Eclipse运行在工作区中找到的所有项目。可以通过使用创建的配置并将其替换为自定义配置来修改此行为。

Eclipse by default runs all the projects found in the workspace. This behavior can be modified by using the configuration created and overriding it with custom configuration.

public class LaunchShortcut extends JUnitLaunchShortcut {

class PluginModelNameBuffer {

    private List<String> nameList;

    PluginModelNameBuffer() {
        super();
        this.nameList = new ArrayList<>();
    }

    void add(final IPluginModelBase model) {
        this.nameList.add(getPluginName(model));
    }

    private String getPluginName(final IPluginModelBase model) {
        IPluginBase base = model.getPluginBase();
        String id = base.getId();
        StringBuilder buffer = new StringBuilder(id);

        ModelEntry entry = PluginRegistry.findEntry(id);
        if ((entry != null) && (entry.getActiveModels().length > 1)) {
            buffer.append('*');
            buffer.append(model.getPluginBase().getVersion());
        }
        return buffer.toString();
    }

    @Override
    public String toString() {
        Collections.sort(this.nameList);
        StringBuilder result = new StringBuilder();
        for (String name : this.nameList) {
            if (result.length() > 0) {
                result.append(',');
            }
            result.append(name);
        }

        if (result.length() == 0) {
            return null;
        }

        return result.toString();
    }
}

@Override
protected ILaunchConfigurationWorkingCopy createLaunchConfiguration(final IJavaElement element)
        throws CoreException {
    ILaunchConfigurationWorkingCopy configuration = super.createLaunchConfiguration(element);
    configuration.setAttribute(IJavaLaunchConfigurationConstants.ATTR_VM_ARGUMENTS, "memory");
    configuration.setAttribute(IPDELauncherConstants.USE_PRODUCT, false);
    configuration.setAttribute(IPDELauncherConstants.USE_DEFAULT, false);
    configuration.setAttribute(IPDELauncherConstants.AUTOMATIC_ADD, false);
    addDependencies(configuration);

    return configuration;
}

@SuppressWarnings("restriction")
private void addDependencies(final ILaunchConfigurationWorkingCopy configuration) throws CoreException {
    PluginModelNameBuffer wBuffer = new PluginModelNameBuffer();
    PluginModelNameBuffer tBuffer = new PluginModelNameBuffer();
    Set<IPluginModelBase> addedModels = new HashSet<>();

    String projectName = configuration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, "");
    IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject(projectName);
    IPluginModelBase model = PluginRegistry.findModel(project);
    wBuffer.add(model);
    addedModels.add(model);

    IPluginModelBase[] externalModels = PluginRegistry.getExternalModels();
    for (IPluginModelBase externalModel : externalModels) {
        String id = externalModel.getPluginBase().getId();
        if (id != null) {
            switch (id) {
            case "org.eclipse.ui.ide.application":
            case "org.eclipse.equinox.ds":
            case "org.eclipse.equinox.event":
                tBuffer.add(externalModel);
                addedModels.add(externalModel);
                break;
            default:
                break;
            }
        }
    }

    TreeSet<String> checkedWorkspace = new TreeSet<>();
    IPluginModelBase[] workspaceModels = PluginRegistry.getWorkspaceModels();
    for (IPluginModelBase workspaceModel : workspaceModels) {
        checkedWorkspace.add(workspaceModel.getPluginBase().getId());
    }

    EclipsePluginValidationOperation eclipsePluginValidationOperation = new EclipsePluginValidationOperation(
            configuration);
    eclipsePluginValidationOperation.run(null);

    while (eclipsePluginValidationOperation.hasErrors()) {
        Set<String> additionalIds = DependencyManager.getDependencies(addedModels.toArray(), true, null);
        if (additionalIds.isEmpty()) {
            break;
        }
        additionalIds.stream().map(PluginRegistry::findEntry).filter(Objects::nonNull).map(ModelEntry::getModel)
                .forEach(addedModels::add);

        for (String id : additionalIds) {
            IPluginModelBase plugin = findPlugin(id);
            if (checkedWorkspace.contains(plugin.getPluginBase().getId())
                    && (!plugin.getPluginBase().getId().endsWith("tests"))) {
                wBuffer.add(plugin);
            } else {
                tBuffer.add(plugin);
            }
        }
        eclipsePluginValidationOperation.run(null);
    }
    configuration.setAttribute(IPDELauncherConstants.SELECTED_WORKSPACE_PLUGINS, wBuffer.toString());
    configuration.setAttribute(IPDELauncherConstants.SELECTED_TARGET_PLUGINS, tBuffer.toString());
}

protected IPluginModelBase findPlugin(final String id) {
    ModelEntry entry = PluginRegistry.findEntry(id);
    if (entry != null) {
        return entry.getModel();
     }
      return null;
   }
}

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