/**
* Copyright (C) 2010-2017 Structr GmbH
*
* This file is part of Structr <http://structr.org>.
*
* Structr is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* Structr is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Structr. If not, see <http://www.gnu.org/licenses/>.
*/
package org.structr.web.datasource;
import java.util.LinkedList;
import java.util.List;
import org.structr.common.SecurityContext;
import org.structr.common.error.FrameworkException;
import org.structr.core.GraphObject;
import org.structr.core.app.StructrApp;
import org.structr.core.entity.AbstractNode;
import org.structr.web.common.GraphDataSource;
import org.structr.web.common.RenderContext;
/**
*
*
*/
public class IdRequestParameterGraphDataSource implements GraphDataSource<List<GraphObject>> {
private String parameterName = null;
public IdRequestParameterGraphDataSource(String parameterName) {
this.parameterName = parameterName;
}
@Override
public List<GraphObject> getData(final RenderContext renderContext, final AbstractNode referenceNode) throws FrameworkException {
final SecurityContext securityContext = renderContext.getSecurityContext();
if (securityContext != null && securityContext.getRequest() != null) {
String nodeId = securityContext.getRequest().getParameter(parameterName);
if (nodeId != null) {
AbstractNode node = (AbstractNode) StructrApp.getInstance(securityContext).getNodeById(nodeId);
if (node != null) {
List<GraphObject> graphData = new LinkedList<>();
graphData.add(node);
return graphData;
}
}
}
return null;
}
}