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/*******************************************************************************
* Copyright (c) 2011 protos software gmbh (http://www.protos.de).
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* CONTRIBUTORS:
* Thomas Schuetz and Henrik Rentz-Reichert (initial contribution)
*
*******************************************************************************/
package org.eclipse.etrice.generator.base;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.etrice.core.room.RoomModel;
import org.eclipse.etrice.core.scoping.PlatformRelativeUriResolver;
import org.eclipse.etrice.core.genmodel.builder.GeneratorModelBuilder;
import org.eclipse.etrice.core.genmodel.etricegen.IDiagnostician;
import org.eclipse.etrice.core.genmodel.etricegen.Root;
import org.eclipse.xtext.diagnostics.Severity;
import org.eclipse.xtext.generator.JavaIoFileSystemAccess;
import org.eclipse.xtext.util.CancelIndicator;
import org.eclipse.xtext.validation.CheckMode;
import org.eclipse.xtext.validation.IResourceValidator;
import org.eclipse.xtext.validation.Issue;
import com.google.inject.Guice;
import com.google.inject.Inject;
import com.google.inject.Injector;
import com.google.inject.Module;
import com.google.inject.Provider;
/**
* @author Henrik Rentz-Reichert
*
*/
public abstract class AbstractGenerator {
public static final int GENERATOR_OK = 0;
public static final int GENERATOR_ERROR = 1;
private static boolean terminateOnError = true;
public static void setTerminateOnError(boolean terminateOnError) {
AbstractGenerator.terminateOnError = terminateOnError;
}
public static boolean isTerminateOnError() {
return terminateOnError;
}
protected static ILineOutput output = new StdLineOutput();
private static Injector injector;
public static void setOutput(ILineOutput out) {
if (out!=null)
output = out;
}
/**
* creates an instance of the generator and invokes the {@link #runGenerator(String[])} method
* @param generatorModule a Guice module from which the {@link Injector} is created
* @return
*/
protected static int createAndRunGenerator(Module generatorModule, String[] args) {
injector = Guice.createInjector(generatorModule);
AbstractGenerator generator = injector.getInstance(AbstractGenerator.class);
generator.logger.setOutput(output);
return generator.runGenerator(args);
}
public static Injector getInjector() {
return injector;
}
@Inject
protected Provider<ResourceSet> resourceSetProvider;
@Inject
protected ILineOutputLogger logger;
@Inject
protected IDiagnostician diagnostician;
@Inject
protected JavaIoFileSystemAccess fileAccess;
@Inject
protected PlatformRelativeUriResolver uriResolver;
protected IResourceValidator validator;
/**
* setup the ROOM core model plug-in and create a validator using injection
*/
protected void setupRoomModel() {
Injector roomInjector = new org.eclipse.etrice.core.RoomStandaloneSetup().createInjectorAndDoEMFRegistration();
validator = roomInjector.getInstance(IResourceValidator.class);
org.eclipse.etrice.core.genmodel.SetupGenmodel.doSetup();
}
/**
* @param rs the {@link ResourceSet} to which the generator model should be added
* @param genModelPath path to store the generator model (not stored if {@code null})
*
* @return the {@link Root} object of the generator model (is added to a new Resource also)
*/
protected Root createGeneratorModel(ResourceSet rs, boolean asLibrary, String genModelPath) {
// create a list of ROOM models
List<RoomModel> rml = new ArrayList<RoomModel>();
for (Resource resource : rs.getResources()) {
List<EObject> contents = resource.getContents();
if (!contents.isEmpty() && contents.get(0) instanceof RoomModel) {
rml.add((RoomModel)contents.get(0));
}
}
if (rml.isEmpty()) {
logger.logError("no ROOM models found", null);
logger.logError("-- terminating", null);
return null;
}
else {
logger.logInfo("-- creating generator model");
GeneratorModelBuilder gmb = new GeneratorModelBuilder(logger, diagnostician);
Root gmRoot = gmb.createGeneratorModel(rml, asLibrary);
if (diagnostician.isFailed()) {
logger.logInfo("validation failed during build of generator model");
logger.logError("-- terminating", null);
return null;
}
URI genModelURI = genModelPath!=null? URI.createFileURI(genModelPath) : URI.createFileURI("tmp.rim");
Resource genResource = rs.createResource(genModelURI);
genResource.getContents().add(gmRoot);
if (genModelPath!=null) {
try {
logger.logInfo("saving genmodel to "+genModelPath);
genResource.save(Collections.EMPTY_MAP);
}
catch (IOException e) {
logger.logError(e.getMessage(), null);
logger.logError("-- terminating", null);
return null;
}
}
return gmRoot;
}
}
/**
* validate the models
*
* @param rs
*/
protected boolean validateModels(ResourceSet rs) {
logger.logInfo("-- validating models");
int errors = 0;
int warnings = 0;
for (Resource resource : rs.getResources()) {
List<Issue> list = validator.validate(resource, CheckMode.ALL, CancelIndicator.NullImpl);
if (!list.isEmpty()) {
for (Issue issue : list) {
if (issue.getSeverity()==Severity.ERROR) {
++errors;
logger.logError(issue.toString(), null);
}
else {
++warnings;
logger.logInfo(issue.toString());
}
}
}
}
logger.logInfo("validation finished with "+errors+" errors and "+warnings+" warnings");
if (errors>0) {
logger.logError("-- terminating", null);
return false;
}
return true;
}
protected boolean loadModel(String uriString, ResourceSet rs)
throws RuntimeException, IOException {
String can = URI.createFileURI(uriString).toFileString();
File f = new File(can);
can = f.getCanonicalPath(); // e.g. remove embedded ../
if (rs.getResource(URI.createFileURI(can), false) != null)
// already loaded
return false;
logger.logInfo("Loading " + can);
rs.getResource(URI.createFileURI(can), true); // Could throw an exception...
return true;
}
/**
* load all models into a {@link ResourceSet}
*
* @param uriList a list of {@link URI}s as Strings
* @param rs the {@link ResourceSet}
*/
protected boolean loadModels(List<String> uriList, ResourceSet rs) {
logger.logInfo("-- reading models");
boolean ok = true;
for (String uriString : uriList) {
//logger.logInfo("Loading " + uriString);
try {
loadModel(uriString,rs);
}
catch (Exception e) {
ok = false;
logger.logError("couldn't load '"+uriString+"'", null);
}
}
EcoreUtil.resolveAll(rs);
return ok;
}
/**
* abstract method which is finally called by {@link #createAndRunGenerator(Module, String[])}
* @param args
* @return GENERATOR_OK or GENERATOR_ERROR
*/
protected abstract int runGenerator(String[] args);
}
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