AppliedStereotypePropertyActivator.java example

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modellipse-master
/*
 * generated by Xtext
 */
package org.eclipse.papyrus.uml.textedit.stereotypeproperty.xtext.ui.internal;

import static com.google.inject.util.Modules.override;
import static com.google.inject.Guice.createInjector;

import org.apache.log4j.Logger;

import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

import com.google.inject.Injector;
import com.google.inject.Module;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;

import java.util.concurrent.ExecutionException;

import org.eclipse.xtext.ui.shared.SharedStateModule;

/**
 * This class was generated. Customizations should only happen in a newly
 * introduced subclass.
 */
public class AppliedStereotypePropertyActivator extends AbstractUIPlugin {

	private static final Logger logger = Logger.getLogger(AppliedStereotypePropertyActivator.class);

	private Cache<String, Injector> injectors = CacheBuilder.newBuilder().build(new CacheLoader<String, Injector>() {

		@Override
		public Injector load(String language) throws Exception {
			Module runtimeModule = getRuntimeModule(language);
			Module sharedStateModule = getSharedStateModule();
			Module uiModule = getUiModule(language);
			Module mergedModule = override(override(runtimeModule).with(sharedStateModule)).with(uiModule);
			return createInjector(mergedModule);
		}
	});

	private static AppliedStereotypePropertyActivator INSTANCE;

	public static final String ORG_ECLIPSE_PAPYRUS_UML_TEXTEDIT_STEREOTYPEPROPERTY_XTEXT_APPLIEDSTEREOTYPEPROPERTY = "org.eclipse.papyrus.uml.textedit.stereotypeproperty.xtext.AppliedStereotypeProperty";

	public Injector getInjector(String languageName) {
		try {
			return injectors.get(languageName);
		} catch (ExecutionException e) {
			logger.error("Failed to create injector for " + languageName);
			logger.error(e.getMessage(), e);
			throw new RuntimeException("Failed to create injector for " + languageName, e);
		}
	}

	@Override
	public void start(BundleContext context) throws Exception {
		super.start(context);
		INSTANCE = this;
	}

	@Override
	public void stop(BundleContext context) throws Exception {
		injectors.invalidateAll();
		injectors.cleanUp();
		INSTANCE = null;
		super.stop(context);
	}

	public static AppliedStereotypePropertyActivator getInstance() {
		return INSTANCE;
	}

	protected Module getRuntimeModule(String grammar) {
		if(ORG_ECLIPSE_PAPYRUS_UML_TEXTEDIT_STEREOTYPEPROPERTY_XTEXT_APPLIEDSTEREOTYPEPROPERTY.equals(grammar)) {
			return new org.eclipse.papyrus.uml.textedit.stereotypeproperty.xtext.AppliedStereotypePropertyRuntimeModule();
		}

		throw new IllegalArgumentException(grammar);
	}

	protected Module getUiModule(String grammar) {
		if(ORG_ECLIPSE_PAPYRUS_UML_TEXTEDIT_STEREOTYPEPROPERTY_XTEXT_APPLIEDSTEREOTYPEPROPERTY.equals(grammar)) {
			return new org.eclipse.papyrus.uml.textedit.stereotypeproperty.xtext.ui.AppliedStereotypePropertyUiModule(this);
		}

		throw new IllegalArgumentException(grammar);
	}

	protected Module getSharedStateModule() {
		return new SharedStateModule();
	}

}