/* ====================================================================
*
* The ObjectStyle Group Software License, Version 1.0
*
* Copyright (c) 2002 - 2004 The ObjectStyle Group
* and individual authors of the software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* ObjectStyle Group (http://objectstyle.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "ObjectStyle Group" and "Cayenne"
* must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact andrus@objectstyle.org.
*
* 5. Products derived from this software may not be called "ObjectStyle"
* nor may "ObjectStyle" appear in their names without prior written
* permission of the ObjectStyle Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE OBJECTSTYLE GROUP OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the ObjectStyle Group. For more
* information on the ObjectStyle Group, please see
* <http://objectstyle.org/>.
*
*/
package org.objectstyle.wolips.templateengine;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.lang.reflect.InvocationTargetException;
import java.net.URL;
import java.text.DateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.LinkedList;
import java.util.List;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.VelocityEngine;
import org.apache.velocity.runtime.RuntimeConstants;
import org.apache.velocity.runtime.resource.loader.FileResourceLoader;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.operation.IRunnableWithProgress;
/**
* @author ulrich
*/
public class TemplateEngine implements IRunnableWithProgress {
public static final String WOLIPS_LOADER = "wolips";
public static final String FILE_LOADER = "file";
private VelocityContext _context;
private List<TemplateDefinition> _templates;
private VelocityEngine _velocityEngine;
private WOLipsContext _wolipsContext;
private String _templatePath;
public void init() throws Exception {
Thread thread = Thread.currentThread();
ClassLoader loader = thread.getContextClassLoader();
thread.setContextClassLoader(this.getClass().getClassLoader());
try {
/*
* create a new instance of the engine
*/
_velocityEngine = new VelocityEngine();
_velocityEngine.setProperty(RuntimeConstants.RUNTIME_LOG_LOGSYSTEM_CLASS, "org.apache.velocity.runtime.log.NullLogSystem");
/*
* initialize the engine
*/
String userHomeWOLipsPath = System.getProperty("user.home") + File.separator + "Library" + File.separator + "TBLips";
URL url = FileLocator.resolve(TemplateEnginePlugin.baseURL());
String templatePaths = userHomeWOLipsPath + ", ";
Path path = new Path(url.getPath());
templatePaths = templatePaths + path.append("templates").toOSString();
_velocityEngine.setProperty("resource.loader", "wolips, file");
// _velocityEngine.setProperty("resource.loader", "wolips");
_velocityEngine.setProperty("wolips.resource.loader.class", org.objectstyle.wolips.thirdparty.velocity.resourceloader.ResourceLoader.class.getName());
_velocityEngine.setProperty("wolips.resource.loader.bundle", TemplateEnginePlugin.getDefault().getBundle());
// _velocityEngine.setProperty("resource.loader", "file");
_velocityEngine.setProperty("file.resource.loader.class", FileResourceLoader.class.getName());
if (_templatePath != null) {
_velocityEngine.setProperty("file.resource.loader.path", _templatePath);
}
_velocityEngine.init();
} finally {
thread.setContextClassLoader(loader);
}
_context = new VelocityContext();
_templates = new LinkedList<TemplateDefinition>();
_wolipsContext = new WOLipsContext();
setPropertyForKey(_wolipsContext, WOLipsContext.Key);
}
public void setTemplatePath(String loaderPath) {
_templatePath = loaderPath;
}
/**
* @param template
*/
public void addTemplate(TemplateDefinition template) {
_templates.add(template);
}
/**
* @param templateDefinitions
*/
public void addTemplates(TemplateDefinition[] templateDefinitions) {
if (_templates == null) {
return;
}
for (TemplateDefinition templateDefinition : templateDefinitions) {
_templates.add(templateDefinition);
}
}
/**
* Sets the property for the given key.
*
* @param property the property value
* @param key the property key
*/
public void setPropertyForKey(Object property, String key) {
_context.put(key, property);
}
/**
* Returns the property value for the given key.
*
* @param key the key to lookup
* @return the property value for the given key
*/
public Object getPropertyForKey(String key) {
return _context.get(key);
}
/**
* Returns the keys from this template engine.
*
* @return the keys from this template engine
*/
public Object[] getKeys() {
return _context.getKeys();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.operation.IRunnableWithProgress#run(org.eclipse.core.runtime.IProgressMonitor)
*/
public void run(IProgressMonitor monitor) throws InvocationTargetException {
try {
setDateInContext();
for (TemplateDefinition templateDefinition : _templates) {
run(templateDefinition);
}
} catch (Exception e) {
throw new InvocationTargetException(e);
}
}
private void run(TemplateDefinition templateDefinition) {
Writer writer = null;
File file = null;
try {
/*
* make a writer, and merge the template 'against' the context
*/
String templateName = templateDefinition.getTemplateName();
Template template = _velocityEngine.getTemplate(templateName, "UTF-8");
//writer = new FileWriter(templateDefinition.getDestinationPath());
file = new File(templateDefinition.getDestinationPath());
File parentDir = file.getParentFile();
if (!parentDir.exists()) {
parentDir.mkdirs();
}
writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file), "UTF-8"));
template.merge(_context, writer);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (writer != null) {
try {
writer.flush();
writer.close();
} catch (Exception ee) {
ee.printStackTrace();
}
}
}
}
/**
* @return Returns the wolipsContext.
*/
public WOLipsContext getWolipsContext() {
return _wolipsContext;
}
/**
* sets the date in the context
*/
private void setDateInContext() {
DateFormat dateFormat = DateFormat.getDateInstance();
DateFormat timeFormat = DateFormat.getTimeInstance();
Date currentDate = Calendar.getInstance().getTime();
String date = dateFormat.format(currentDate) + " " + timeFormat.format(currentDate);
setPropertyForKey(date, "Date");
}
}