org.jboss.tools.jst.web.project.AddServletSupportWizard.java Source code

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Here is the source code for org.jboss.tools.jst.web.project.AddServletSupportWizard.java

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/*******************************************************************************
 * Copyright (c) 2007 Exadel, Inc. and Red Hat, Inc.
 * Distributed under license by Red Hat, Inc. All rights reserved.
 * This program is 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:
 *     Exadel, Inc. and Red Hat, Inc. - initial API and implementation
 ******************************************************************************/
package org.jboss.tools.jst.web.project;

import org.eclipse.core.runtime.*;
import org.eclipse.jdt.core.*;
import org.jboss.tools.common.meta.action.SpecialWizard;
import org.jboss.tools.common.model.*;
import org.jboss.tools.common.model.plugin.ModelPlugin;
import org.jboss.tools.common.model.project.ClassPathUpdate;
import org.jboss.tools.jst.web.*;

public class AddServletSupportWizard implements SpecialWizard {
    XModel model;
    ClassPathUpdate update;

    public void setObject(Object object) {
        update = (ClassPathUpdate) object;
        model = update.getModel();
    }

    public int execute() {
        try {
            addServletSupport();
        } catch (XModelException e) {
            //TODO probably wizard should throw XModelException?
            ModelPlugin.getPluginLog().logError(e);
            return 1;
        }
        return 0;
    }

    private void addServletSupport() throws XModelException {
        XModelObject web = model.getByPath("Web"); //$NON-NLS-1$
        if (web == null)
            return;
        String servletVersion = web.getAttributeValue("servlet version"); //$NON-NLS-1$
        if (servletVersion == null || "".equals(servletVersion)) { //$NON-NLS-1$
            servletVersion = WebPreference.DEFAULT_SERVLET_VERSION.getValue();
            model.changeObjectAttribute(web, "servlet version", servletVersion); //$NON-NLS-1$
        }
        String[] jars = WebUtils.getServletLibraries(getTemplatesBase(), servletVersion);
        if (web.getChildren(WebModuleConstants.ENTITY_WEB_MODULE).length == 0
                && web.getChildren("WebJSFModule").length == 0) { //$NON-NLS-1$
            return;
        }
        for (int i = 0; i < jars.length; i++) {
            IPath jarPath = new Path(jars[i]);
            IPath variablePath = JavaCore.getClasspathVariable(jarPath.segment(0));
            IClasspathEntry entry = null;
            if (variablePath == null)
                entry = update.createNewClasspathEntry(jarPath, IClasspathEntry.CPE_LIBRARY);
            else
                entry = update.createNewClasspathEntry(jarPath, IClasspathEntry.CPE_VARIABLE);
            update.registerEntry(entry);
        }
    }

    public String getTemplatesBase() {
        return WebModelPlugin.getTemplateStateLocation() + "templates"; //$NON-NLS-1$
    }

}