source: default/trunk/de.ugoe.cs.swe.bnftools.xtools/src/resource/tools/xtools/ResourceTool.java @ 58

package resource.tools.xtools;

import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

import org.apache.commons.io.FileUtils;
import org.eclipse.emf.common.util.BasicDiagnostic;
import org.eclipse.emf.common.util.Diagnostic;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.common.util.TreeIterator;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EOperation;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.EValidator;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.emf.ecore.resource.impl.FileURIHandlerImpl;
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
import org.eclipse.emf.ecore.util.Diagnostician;
import org.eclipse.emf.ecore.util.EObjectValidator;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.ecore.xmi.impl.XMIResourceFactoryImpl;
import org.eclipse.emf.ecore.xmi.impl.XMIResourceImpl;
import org.eclipse.ocl.common.OCLConstants;
import org.eclipse.ocl.ecore.delegate.OCLInvocationDelegateFactory;
import org.eclipse.ocl.ecore.delegate.OCLSettingDelegateFactory;
import org.eclipse.ocl.ecore.delegate.OCLValidationDelegateFactory;
import org.eclipse.xtext.resource.SaveOptions;
import org.eclipse.xtext.resource.XtextResource;
import org.eclipse.xtext.resource.XtextResourceSet;
import org.eclipse.xtext.serializer.impl.Serializer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.impl.SimpleLogger;

import com.google.inject.Injector;

public class ResourceTool {

        protected static Logger log;
        protected Injector injector;

        public ResourceTool() {
                System.setProperty(Logger.class.getName(),SimpleLogger.class.getName());
                System.setProperty("org.slf4j.simpleLogger.logFile","validation.log");
                System.setProperty("org.slf4j.simpleLogger.logFile","System.out");
                log = LoggerFactory.getLogger(ResourceTool.class);      
        }

        public Resource loadResourceFromXtext(String workspace, String pathName, boolean resolveAll) {
                // "workspace" is a string that contains the path to the workspace containing the DSL program.
                new org.eclipse.emf.mwe.utils.StandaloneSetup().setPlatformUri(workspace);
                
                XtextResourceSet resourceSet = injector.getInstance(XtextResourceSet.class);

                //TODO:why is this not needed for FAMIX but needed for DAG?
                if (resolveAll) {
                        resourceSet.addLoadOption(XtextResource.OPTION_RESOLVE_ALL, Boolean.TRUE);
                }

                Resource resource = resourceSet.getResource(URI.createURI(pathName), true);
                for (org.eclipse.emf.ecore.resource.Resource.Diagnostic diagnostic : resource.getErrors()) {
                        log.warn("xtext: "+diagnostic.getLine() +" :"+diagnostic.getMessage());
                }
                return resource;
        }

        @SuppressWarnings("restriction")
        public Resource storeResourceInXtext(String workspace, String pathName, EList<EObject> contents) {
                // "workspace" is a string that contains the path to the workspace containing the DSL program.
                new org.eclipse.emf.mwe.utils.StandaloneSetup().setPlatformUri(workspace);
                
                XtextResourceSet resourceSet = injector.getInstance(XtextResourceSet.class);

                String s = "";
                Serializer serializer = injector.getInstance(Serializer.class); 

                try {  
                        EObject tdlPackage = contents.get(0);
                        s += serializer.serialize(tdlPackage);  
                } catch (Exception ex) { // fall back:  
                        System.out.println("Model could not be serialized"); 
                        ex.printStackTrace();
                }  
//              TreeIterator<Object> iterator = EcoreUtil.getAllContents(contents);
//              while (iterator.hasNext()) {
//                      EObject next = (EObject) iterator.next();
//                      try {  
//                              s += serializer.serialize(next)+"\n";  
//                      } catch (Exception ex) { // fall back:  
//                              System.out.println(next.eClass().getName() +" could not be serialized");  
//                      }  
//              }
                System.out.println(s);
                
                try {
                        FileUtils.writeStringToFile(new File(pathName), s);
                } catch (IOException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                }
                Resource resource = null;
                //Resource resource = loadResourceFromXtext(workspace, pathName, true);

                return resource;
        }

        
        @SuppressWarnings({ "rawtypes", "unchecked" })
        public Resource loadResourceFromXMI(String inputPath, String extension) {
            Resource.Factory.Registry reg = Resource.Factory.Registry.INSTANCE;
            Map<String, Object> m = reg.getExtensionToFactoryMap();
                m.put(extension, new XMIResourceFactoryImpl());
            ResourceSet resSetIn = new ResourceSetImpl();
            Resource inputResource = resSetIn.createResource(URI.createURI(inputPath));
            try {
                Map options = new HashMap<>();
                options.put(XMIResourceImpl.OPTION_DEFER_IDREF_RESOLUTION, Boolean.TRUE);
//              options.put(XMIResourceImpl.OPTION_PROCESS_DANGLING_HREF, XMIResourceImpl.OPTION_PROCESS_DANGLING_HREF_DISCARD);
                        inputResource.load(options);
                } catch (IOException e) {
                        e.printStackTrace();
                }
                return inputResource;
        }

        protected void initializeValidator() {
        //              OCL.initialize(null);
                        String oclDelegateURI = OCLConstants.OCL_DELEGATE_URI+"/Pivot";
                        
                    EOperation.Internal.InvocationDelegate.Factory.Registry.INSTANCE.put(oclDelegateURI,
                        new OCLInvocationDelegateFactory(oclDelegateURI));
                    EStructuralFeature.Internal.SettingDelegate.Factory.Registry.INSTANCE.put(oclDelegateURI,
                        new OCLSettingDelegateFactory(oclDelegateURI));
                    EValidator.ValidationDelegate.Registry.INSTANCE.put(oclDelegateURI,
                        new OCLValidationDelegateFactory(oclDelegateURI));
                    
        //          EStructuralFeature.Internal.SettingDelegate.Factory.Registry.INSTANCE.put(oclDelegateURI, 
        //              new OCLSettingDelegateFactory.Global());
        //          QueryDelegate.Factory.Registry.INSTANCE.put(oclDelegateURI, new OCLQueryDelegateFactory.Global());
                    
                }

        public void validateResource(Resource resource) {
            BasicDiagnostic diagnostics = new BasicDiagnostic();
            boolean valid = true;
            for (EObject eo : resource.getContents())
            {
                Map<Object, Object> context = new HashMap<Object, Object>();
                boolean validationResult = Diagnostician.INSTANCE.validate(eo, diagnostics, context);
                showDiagnostics(diagnostics, "");
                        valid &= validationResult;
            }
            
            if (!valid){
                System.out.println("Problem with validation!");
            }
        }

        protected void showDiagnostics(Diagnostic diagnostics, String indent) {
                indent+="  ";
                for (Diagnostic d : diagnostics.getChildren()){
                        log.warn(indent+d.getSource());
                        log.warn(indent+"  "+d.getMessage());
                        showDiagnostics(d,indent);
                }
        }

        @SuppressWarnings({ "unchecked", "rawtypes" })
        protected void storeResourceContents(EList<EObject> contents, String outputPath, String extension) {
                //TODO: duplicated from loadResourceFromXMI => move to a more appropriate location
                Resource.Factory.Registry reg = Resource.Factory.Registry.INSTANCE;
            Map<String, Object> m = reg.getExtensionToFactoryMap();
                m.put(extension, new XMIResourceFactoryImpl());
                
            ResourceSet resSet = new ResourceSetImpl();
                Resource outputResource = resSet.createResource(URI.createURI(outputPath));
            outputResource.getContents().addAll(contents);
            try {
              Map options = new HashMap<>();
              options.put(XMIResourceImpl.OPTION_ENCODING, "UTF-8");
//            options.put(XMIResourceImpl.OPTION_PROCESS_DANGLING_HREF, XMIResourceImpl.OPTION_PROCESS_DANGLING_HREF_DISCARD);
              outputResource.save(options);
            } catch (IOException e) {
              e.printStackTrace();
            }
        }

}