com.regnosys.rosetta.maven.RosettaLanguageAccessFactory Maven / Gradle / Ivy

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Responsibilities: calling the Rosetta code generator from Maven.

There is a newer version: 9.22.1

/*
 * Copyright 2024 REGnosys
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.regnosys.rosetta.maven;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.xtext.ISetup;
import org.eclipse.xtext.builder.standalone.ILanguageConfiguration;
import org.eclipse.xtext.builder.standalone.LanguageAccess;
import org.eclipse.xtext.builder.standalone.LanguageAccessFactory;
import org.eclipse.xtext.resource.FileExtensionProvider;
import org.eclipse.xtext.resource.IResourceServiceProvider;

import com.google.inject.Injector;

/**
 * This will setup language access with the `SingletonGeneratorResourceServiceProvider`
 * instead of the default `IResourceServiceProvider`.
 *
 */
public class RosettaLanguageAccessFactory extends LanguageAccessFactory {

	@Override
	public Map createLanguageAccess(List languageConfigs, ClassLoader compilerClassLoder) {
		Map result = new HashMap();
		for (ILanguageConfiguration languageGenConf : languageConfigs) {
			ISetup setup;
			try {
				Class loadClass = compilerClassLoder.loadClass(languageGenConf.getSetup());
				if (!ISetup.class.isAssignableFrom(loadClass)) {
					throw new IllegalArgumentException("Language setup class " + languageGenConf.getSetup()
							+ " must implement " + ISetup.class.getName());
				}
				setup = (ISetup) loadClass.getDeclaredConstructor().newInstance();
			} catch (Exception e) {
				throw new IllegalStateException("Failed to load language setup for class '"+languageGenConf.getSetup()+"'.", e);
			}

			Injector injector = setup.createInjectorAndDoEMFRegistration();
			IResourceServiceProvider singletonServiceProvider = injector.getInstance(SingletonGeneratorResourceServiceProvider.class);
			FileExtensionProvider fileExtensionProvider = injector.getInstance(FileExtensionProvider.class);
			LanguageAccess languageAccess = new LanguageAccess(languageGenConf.getOutputConfigurations(), singletonServiceProvider, languageGenConf.isJavaSupport());
			for (String extension : fileExtensionProvider.getFileExtensions()) {
				result.put(extension, languageAccess);
			}
		}
		return result;
	}

}