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/*******************************************************************************
* Copyright (c) 2015 QNX Software Systems and others.
* All rights reserved. This program and the accompanying materials
* are 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
*******************************************************************************/
package org.eclipse.cdt.internal.qt.core;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.io.StringWriter;
import java.net.URISyntaxException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;
public class QtTemplateGenerator {
private final Configuration config;
public QtTemplateGenerator() throws CoreException {
config = new Configuration(Configuration.VERSION_2_3_22);
URL templateDirURL = FileLocator.find(Activator.getDefault().getBundle(), new Path("/templates"), null); //$NON-NLS-1$
try {
config.setDirectoryForTemplateLoading(new File(FileLocator.toFileURL(templateDirURL).toURI()));
} catch (IOException | URISyntaxException e) {
throw new CoreException(new Status(IStatus.ERROR, Activator.ID, "Template configuration", e));
}
}
public void generateFile(final Object model, String templateFile, final IFile outputFile, IProgressMonitor monitor)
throws CoreException {
try {
final Template template = config.getTemplate(templateFile);
try (StringWriter writer = new StringWriter()) {
template.process(model, writer);
try (ByteArrayInputStream in = new ByteArrayInputStream(
writer.getBuffer().toString().getBytes(StandardCharsets.UTF_8))) {
if (outputFile.exists()) {
outputFile.setContents(in, true, true, monitor);
} else {
outputFile.create(in, true, monitor);
}
}
}
} catch (IOException | TemplateException e) {
throw new CoreException(new Status(IStatus.ERROR, Activator.ID, "Processing template " + templateFile, e));
}
}
}
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