001 /**
002 * GRANITE DATA SERVICES
003 * Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 * This file is part of the Granite Data Services Platform.
006 *
007 * Granite Data Services is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * Granite Data Services is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 * General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 * USA, or see <http://www.gnu.org/licenses/>.
021 */
022
023 package org.granite.generator.gsp;
024
025 import java.io.FileNotFoundException;
026 import java.net.URI;
027
028 import org.granite.generator.Input;
029 import org.granite.generator.Listener;
030 import org.granite.generator.Output;
031 import org.granite.generator.TemplateUri;
032 import org.granite.generator.Transformer;
033 import org.granite.generator.exception.TemplateUriException;
034 import org.granite.util.URIUtil;
035
036 /**
037 * @author Franck WOLFF
038 */
039 public abstract class AbstractGroovyTransformer<I extends Input<?>, O extends Output<?>, C extends GroovyConfiguration>
040 extends Transformer<I, O, C> {
041
042 public AbstractGroovyTransformer() {
043 super();
044 }
045
046 public AbstractGroovyTransformer(GroovyConfiguration config, Listener listener) {
047 super(config, listener);
048 }
049
050 protected GroovyTemplateFactory getTemplateFactory() {
051 return getConfig().getGroovyTemplateFactory();
052 }
053
054 protected GroovyTemplate getTemplate(TemplateUri templateUri) throws TemplateUriException {
055 return getTemplate(templateUri.getUri(), templateUri.isBase());
056 }
057
058 protected GroovyTemplate getTemplate(String path, boolean base) throws TemplateUriException {
059 GroovyTemplateFactory factory = getTemplateFactory();
060 try {
061 path = URIUtil.normalize(path);
062 URI uri = new URI(path);
063 String schemeSpecificPart = uri.getSchemeSpecificPart();
064 if (schemeSpecificPart == null || schemeSpecificPart.length() == 0)
065 throw new FileNotFoundException("Template path cannot be empty: " + uri);
066
067 if (URIUtil.isFileURI(uri) && !URIUtil.isAbsolute(uri)) {
068 URI parent = getConfig().getWorkingDirectory().toURI();
069 if (parent != null)
070 uri = parent.resolve(uri.getRawSchemeSpecificPart());
071 }
072 return factory.getTemplate(uri, base);
073 } catch (Exception e) {
074 throw new TemplateUriException(path, e);
075 }
076 }
077 }