Java tutorial
/** SpagoBI, the Open Source Business Intelligence suite Copyright (C) 2012 Engineering Ingegneria Informatica S.p.A. - SpagoBI Competency Center This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/. **/ package it.eng.spagobi.studio.core.services.modelTemplate; import it.eng.spagobi.meta.model.Model; import it.eng.spagobi.meta.model.business.BusinessModel; import it.eng.spagobi.meta.model.serializer.EmfXmiSerializer; import it.eng.spagobi.studio.utils.bo.Document; import it.eng.spagobi.studio.utils.bo.DocumentParameter; import it.eng.spagobi.studio.utils.bo.Engine; import it.eng.spagobi.studio.utils.bo.Template; import it.eng.spagobi.studio.utils.exceptions.AlreadyPresentException; import it.eng.spagobi.studio.utils.exceptions.NoActiveServerException; import it.eng.spagobi.studio.utils.exceptions.NoDocumentException; import it.eng.spagobi.studio.utils.services.SpagoBIServerObjectsFactory; import it.eng.spagobi.studio.utils.util.SpagoBIStudioConstants; import java.io.IOException; import java.io.InputStream; import java.lang.reflect.InvocationTargetException; import java.rmi.RemoteException; import javax.activation.DataHandler; import org.eclipse.core.internal.resources.File; import org.eclipse.core.internal.resources.Folder; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IFolder; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IWorkspaceRoot; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.dialogs.ProgressMonitorDialog; import org.eclipse.jface.operation.IRunnableWithProgress; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.wizard.ProgressMonitorPart; import org.eclipse.ui.PlatformUI; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * Called by action of model refresh * @author Antonella Giachino (antonella.giachino@eng.it) * */ public class RefreshModelService { private final Template template = new Template(); Document document = null; ISelection selection; String projectName = null; String modelName = null; // fields to retrieve only once String[] roles = null; DocumentParameter[] parameters = null; Engine engine = null; AlreadyPresentException alreadyPresentException = new AlreadyPresentException(); private static Logger logger = LoggerFactory.getLogger(RefreshModelService.class); public RefreshModelService(ISelection _selection) { selection = _selection; } public void refreshModelTemplate() { IStructuredSelection sel = (IStructuredSelection) selection; // go on only if you selected a document (a file) Object objSel = sel.toList().get(0); File fileSel = null; try { fileSel = (File) objSel; projectName = fileSel.getProject().getName(); modelName = fileSel.getName(); } catch (Exception e) { logger.error("No file selected", e); MessageDialog.openWarning(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), "Not a file", "You must select a file to refresh"); return; } logger.debug("get datamart.jar of model file name " + fileSel.getName()); EmfXmiSerializer emfXmiSerializer = new EmfXmiSerializer(); Model root = null; BusinessModel businessModel = null; try { root = emfXmiSerializer.deserialize(fileSel.getContents(true)); logger.debug("Model root is [{}] ", root); businessModel = root.getBusinessModels().get(0); logger.debug("model " + businessModel.getName()); } catch (Exception e) { logger.error("error in retrieving business model; try refreshing model folder ", e); MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), "Warning", "error in retrieving business model: try refreshing model folder"); return; } final BusinessModel finalBusinessModel = businessModel; ProgressMonitorPart monitor; monitor = new ProgressMonitorPart(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), null); logger.debug("Do the model template refresh, model with name " + modelName); final org.eclipse.core.internal.resources.File fileSel2 = fileSel; final NoDocumentException documentException = new NoDocumentException(); final NoActiveServerException noActiveServerException = new NoActiveServerException(); IRunnableWithProgress op = new IRunnableWithProgress() { public void run(IProgressMonitor monitor) throws InvocationTargetException { monitor.beginTask("Template Refresh for model " + modelName, IProgressMonitor.UNKNOWN); // document associated, upload the template SpagoBIServerObjectsFactory spagoBIServerObjects = null; try { spagoBIServerObjects = new SpagoBIServerObjectsFactory(projectName); documentException.setNoDocument(false); Template mytemplate = spagoBIServerObjects.getServerDocuments() .downloadDatamartFile(finalBusinessModel.getName(), modelName); if (mytemplate == null) { logger.error("The download operation has returned a null object!"); documentException.setNoDocument(true); return; } template.setContent(mytemplate.getContent()); template.setFileName(mytemplate.getFileName()); overwriteTemplate(template, fileSel2); } catch (NoActiveServerException e1) { noActiveServerException.setNoServer(true); return; } catch (RemoteException re) { logger.error("Error comunicating with server", re); MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), "Error comunicating with server", "Error while uploading the template: missing comunication with server"); return; } catch (CoreException ec) { logger.error("Error in fie creation", ec); MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), "Error in file creation", "Error in file creation"); return; } monitor.done(); if (monitor.isCanceled()) logger.error("The long running operation was cancelled"); } }; ProgressMonitorDialog dialog = new ProgressMonitorDialog( PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell()); try { dialog.run(true, true, op); } catch (InvocationTargetException e1) { logger.error("Error comunicating with server", e1); MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), "Error", "Missing comunication with server; check server definition and if service is avalaible"); dialog.close(); return; } catch (InterruptedException e1) { logger.error("Error comunicating with server"); MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), "Error", "Missing comunication with server; check server definition and if service is avalaible"); dialog.close(); return; } if (noActiveServerException.isNoServer()) { logger.error("No server is defined active"); MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), "Error", "No server is defined active"); return; } // check if document has been found (could have been deleted) if (documentException.isNoDocument() || template.getContent() == null) { logger.warn("Document no more present on server or no permission " + modelName); MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), "Error upload", "Document not retrieved; check it is still on server and you have enough permission to reach it. Make a new Upload."); return; } dialog.close(); String succesfullMessage = "Succesfully replaced with the last model template (" + modelName + ")"; logger.debug(succesfullMessage); MessageDialog.openInformation(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), "Refresh succesfull", succesfullMessage); } public void overwriteTemplate(Template template, File fileSel) throws CoreException { try { // get the directory Folder folder = (Folder) fileSel.getParent(); String projectName = folder.getProject().getName(); IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot(); IProject project = root.getProject(projectName); IPath pathFolder = folder.getProjectRelativePath(); String templateFileName = template.getFileName(); DataHandler dh = template.getContent(); InputStream is = dh.getInputStream(); IPath pathNewFile = pathFolder.append(templateFileName); IFile newFile = project.getFile(pathNewFile); //Rename the actual in backup file into a dedicated bck folder IFolder bckFolder = project .getFolder(pathFolder.append(SpagoBIStudioConstants.FOLDER_METADATA_MODEL_BCK)); if (bckFolder == null || !bckFolder.exists()) { bckFolder.create(true, true, null); } IPath pathOldFile = pathFolder.append(SpagoBIStudioConstants.FOLDER_METADATA_MODEL_BCK); pathOldFile = pathOldFile.append(templateFileName + "." + SpagoBIStudioConstants.BACKUP_EXTENSION); IFile oldFile = project.getFile(pathOldFile); if (oldFile.exists()) { oldFile.delete(true, null); } oldFile.create(fileSel.getContents(), true, null); // Delete the local old file if (fileSel.exists()) { fileSel.delete(true, null); } // create new File newFile.create(is, true, null); //set the dirty property to true newFile.setPersistentProperty(SpagoBIStudioConstants.DIRTY_MODEL, "true"); } catch (IOException e1) { MessageDialog.openError(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), "Error", "Error in writing the file"); logger.error("Error in writing the file", e1); return; } } }