/**
* 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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Structr. If not, see <http://www.gnu.org/licenses/>.
*/
package org.structr.core.function;
import org.structr.api.graph.Node;
import org.structr.common.error.FrameworkException;
import org.structr.core.graph.NodeFactory;
import org.structr.schema.action.ActionContext;
import org.structr.schema.action.Function;
/**
*
*/
public class InstantiateFunction extends Function<Object, Object> {
public static final String ERROR_MESSAGE_INSTANTIATE = "Usage: ${instantiate(node)}. Example: ${instantiate(result.node)}";
@Override
public String getName() {
return "instantiate()";
}
@Override
public Object apply(final ActionContext ctx, final Object caller, final Object[] sources) throws FrameworkException {
try {
if (!arrayHasLengthAndAllElementsNotNull(sources, 1)) {
return null;
}
if (!(sources[0] instanceof Node)) {
throw new IllegalArgumentException();
}
return new NodeFactory<>(ctx.getSecurityContext()).instantiate((Node)sources[0]);
} catch (final IllegalArgumentException e) {
logParameterError(caller, sources, ctx.isJavaScriptContext());
return usage(ctx.isJavaScriptContext());
}
}
@Override
public String usage(boolean inJavaScriptContext) {
return ERROR_MESSAGE_INSTANTIATE;
}
@Override
public String shortDescription() {
return "Instantiates the given Neo4j nodes into Structr nodes";
}
}