org.jbpm.gd.jpdl.wizard.NewProcessDefinitionWizard.java Source code

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Here is the source code for org.jbpm.gd.jpdl.wizard.NewProcessDefinitionWizard.java

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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jbpm.gd.jpdl.wizard;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.net.MalformedURLException;

import org.dom4j.Attribute;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.io.SAXReader;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.QualifiedName;
import org.eclipse.core.variables.VariablesPlugin;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.Wizard;
import org.eclipse.ui.INewWizard;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.ide.IDE;
import org.eclipse.ui.wizards.newresource.BasicNewResourceWizard;
import org.jboss.tools.jbpm.preferences.JbpmInstallation;
import org.jboss.tools.jbpm.preferences.PreferencesManager;
import org.jbpm.gd.jpdl.Logger;
import org.jbpm.gd.jpdl.Plugin;

public class NewProcessDefinitionWizard extends Wizard implements INewWizard {

    private IStructuredSelection selection;
    private NewProcessDefinitionWizardPage page;

    public NewProcessDefinitionWizard() {
        setWindowTitle("New Process Definition");
    }

    public void init(IWorkbench workbench, IStructuredSelection currentSelection) {
        this.selection = currentSelection;
    }

    public void addPages() {
        page = new NewProcessDefinitionWizardPage();
        addPage(page);
        page.init(selection);
    }

    public boolean performFinish() {
        try {
            IFile processDefinitionFile = page.getProcessDefinitionFile();
            processDefinitionFile.create(createInitialProcessDefinition(), true, null);
            IFile gpdFile = page.getGpdFile();
            gpdFile.create(createInitialGpdInfo(), true, null);
            IDE.openEditor(getActivePage(), processDefinitionFile);
            openPropertiesView();
            BasicNewResourceWizard.selectAndReveal(processDefinitionFile, getActiveWorkbenchWindow());
            return true;
        } catch (CoreException e) {
            e.printStackTrace();
            return false;
        }
    }

    private void openPropertiesView() {
        try {
            if (getActivePage().findView("org.eclipse.ui.views.PropertySheet") == null) {
                getActivePage().showView("org.eclipse.ui.views.PropertySheet");
            }
        } catch (PartInitException e) {
            e.printStackTrace();
        }
    }

    private IWorkbenchPage getActivePage() {
        return getActiveWorkbenchWindow().getActivePage();
    }

    private IWorkbenchWindow getActiveWorkbenchWindow() {
        return PlatformUI.getWorkbench().getActiveWorkbenchWindow();
    }

    private ByteArrayInputStream createInitialProcessDefinition() throws JavaModelException {
        StringBuffer buffer = new StringBuffer();
        buffer.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        buffer.append("\n");
        buffer.append("\n");
        buffer.append("<process-definition" + getSchemaText() + "  name=\"" + page.getProcessName()
                + "\"></process-definition>");
        return new ByteArrayInputStream(buffer.toString().getBytes());
    }

    private String getSchemaText() throws JavaModelException {
        if (!Plugin.getDefault().getPreferenceStore().getBoolean("exclude xsd")) {
            return "  xmlns=\"" + getJbpmSchemaNameSpace() + "\"";
        } else {
            return "";
        }

    }

    private ByteArrayInputStream createInitialGpdInfo() {
        StringBuffer buffer = new StringBuffer();
        buffer.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        buffer.append("\n");
        buffer.append("\n");
        buffer.append("<root-container></root-container>");
        return new ByteArrayInputStream(buffer.toString().getBytes());
    }

    private String getJbpmSchemaNameSpace() throws JavaModelException {
        try {
            IProject project = page.getProcessDefinitionFile().getProject();
            String jbpmName = project.getPersistentProperty(new QualifiedName("", "jbpmName"));
            if (jbpmName == null)
                return "";
            JbpmInstallation jbpmInstallation = PreferencesManager.getInstance().getJbpmInstallation(jbpmName);
            if (jbpmInstallation == null)
                return "";
            String location = VariablesPlugin.getDefault().getStringVariableManager()
                    .performStringSubstitution(jbpmInstallation.location);
            if (location == null)
                return "";
            File file = new Path(location).append("src/resources/gpd/version.info.xml").toFile();
            if (!file.exists())
                return "";
            return getNameSpace(file);
        } catch (CoreException e) {
            return "";
        }
    }

    private String getNameSpace(File file) {
        try {
            Document document = new SAXReader().read(file);
            Attribute attribute = document.getRootElement().attribute("namespace");
            if (attribute != null) {
                return attribute.getValue();
            } else {
                return "";
            }
        } catch (DocumentException e) {
            Logger.logError(e);
            return "";
        } catch (MalformedURLException e) {
            Logger.logError(e);
            return "";
        }
    }

}