Package org.structr.rest.maintenance

Source Code of org.structr.rest.maintenance.DeleteSpatialIndexCommand

/**
* Copyright (C) 2010-2014 Morgner UG (haftungsbeschränkt)
*
* 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.rest.maintenance;

import java.util.Map;
import java.util.List;
import java.util.LinkedList;
import java.util.logging.Logger;
import java.util.logging.Level;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.Relationship;
import org.neo4j.tooling.GlobalGraphOperations;
import org.structr.common.error.FrameworkException;
import org.structr.core.app.App;
import org.structr.core.app.StructrApp;
import org.structr.core.graph.MaintenanceCommand;
import org.structr.core.graph.NodeService;
import org.structr.core.graph.NodeServiceCommand;
import org.structr.core.graph.Tx;
import org.structr.rest.resource.MaintenanceParameterResource;


/**
*
* @author Christian Morgner
*/
public class DeleteSpatialIndexCommand extends NodeServiceCommand implements MaintenanceCommand {

  private static final Logger logger = Logger.getLogger(DeleteSpatialIndexCommand.class.getName());

  static {

    MaintenanceParameterResource.registerMaintenanceCommand("deleteSpatialIndex", DeleteSpatialIndexCommand.class);
  }

  @Override
  public void execute(Map<String, Object> attributes) throws FrameworkException {


    final GraphDatabaseService graphDb = StructrApp.getInstance().getService(NodeService.class).getGraphDb();
    final List<Node> toDelete          = new LinkedList<>();

    for (final Node node: GlobalGraphOperations.at(graphDb).getAllNodes()) {

      try {
        if (node.hasProperty("bbox") && node.hasProperty("gtype") && node.hasProperty("id") && node.hasProperty("latitude") && node.hasProperty("longitude")) {

          toDelete.add(node);
        }

      } catch (Throwable t) {}

    }

    final App app = StructrApp.getInstance(securityContext);

    try (final Tx tx = app.tx()) {

      for (Node node : toDelete) {

        logger.log(Level.INFO, "Deleting node {0}", node);

        try {

          for (Relationship rel : node.getRelationships()) {

            rel.delete();
          }

          node.delete();

        } catch (Throwable t) {

          t.printStackTrace();
        }

      }

      tx.success();
    }
  }

  @Override
  public boolean requiresEnclosingTransaction() {
    return true;
  }
}
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