/*
* $Id: ImportAttributeDirective.java 902403 2010-01-23 13:31:17Z apetrelli $
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tiles.velocity.template;
import java.io.Writer;
import java.util.Map;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.tiles.servlet.context.ServletUtil;
import org.apache.tiles.template.ImportAttributeModel;
import org.apache.tiles.velocity.context.VelocityUtil;
import org.apache.velocity.context.InternalContextAdapter;
import org.apache.velocity.runtime.directive.Directive;
import org.apache.velocity.runtime.parser.node.Node;
import org.apache.velocity.tools.view.ViewContext;
/**
* Wraps {@link ImportAttributeModel} to be used in Velocity. For the list of
* parameters, see
* {@link ImportAttributeModel#getImportedAttributes(org.apache.tiles.TilesContainer,
* String, String, boolean, Object...)}.
*
* @version $Rev: 902403 $ $Date: 2010-01-23 14:31:17 +0100 (sab, 23 gen 2010) $
* @since 2.2.2
*/
public class ImportAttributeDirective extends Directive {
/**
* The template model.
*/
private ImportAttributeModel model = new ImportAttributeModel();
/**
* Default constructor.
*
* @since 2.2.2
*/
public ImportAttributeDirective() {
// Does nothing.
}
/**
* Constructor.
*
* @param model The used model.
* @since 2.2.2
*/
public ImportAttributeDirective(ImportAttributeModel model) {
this.model = model;
}
/** {@inheritDoc} */
@Override
public String getName() {
return "tiles_importAttribute";
}
/** {@inheritDoc} */
@Override
public int getType() {
return LINE;
}
/** {@inheritDoc} */
@Override
public boolean render(InternalContextAdapter context, Writer writer, Node node) {
ViewContext viewContext = (ViewContext) context
.getInternalUserContext();
Map<String, Object> params = VelocityUtil.getParameters(context, node);
HttpServletRequest request = viewContext.getRequest();
HttpServletResponse response = viewContext.getResponse();
ServletContext servletContext = viewContext.getServletContext();
Map<String, Object> attributes = model.getImportedAttributes(
ServletUtil
.getCurrentContainer(request, servletContext),
(String) params.get("name"), (String) params
.get("toName"), VelocityUtil.toSimpleBoolean(
(Boolean) params.get("ignore"), false),
context, request, response);
String scope = (String) params.get("scope");
for (Map.Entry<String, Object> entry : attributes.entrySet()) {
VelocityUtil.setAttribute(context, request,
servletContext, entry.getKey(), entry.getValue(),
scope);
}
return true;
}
}