Package com.moesol.geoserver.sync.client

Source Code of com.moesol.geoserver.sync.client.StatesClient

/**
*
*  #%L
*  geoserver-sync-core
*  $Id:$
*  $HeadURL:$
*  %%
*  Copyright (C) 2013 Moebius Solutions Inc.
*  %%
*  This program 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 2 of the
*  License, or (at your option) any later version.
*
*  This program 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 this program.  If not, see
<http://www.gnu.org/licenses/gpl-2.0.html>.
*  #L%
*
*/

package com.moesol.geoserver.sync.client;




import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.xml.parsers.ParserConfigurationException;

import org.geotools.feature.simple.SimpleFeatureBuilder;
import org.geotools.feature.simple.SimpleFeatureTypeBuilder;
import org.geotools.filter.identity.FeatureIdImpl;
import org.geotools.util.logging.Logging;
import org.opengis.feature.Feature;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.filter.identity.Identifier;
import org.xml.sax.SAXException;

import com.moesol.geoserver.sync.client.FeatureAccessor;
import com.moesol.geoserver.sync.client.FeatureAccessorImpl;
import com.moesol.geoserver.sync.client.GeoserverClientSynchronizer;
import com.moesol.geoserver.sync.client.xml.ComplexConfiguration;

/**
* Reconcile with the states feature type that
* is a sample feature type in geoserver
* @author hastings
*/
public class StatesClient {
  private static final Logger LOGGER = Logging.getLogger(StatesClient.class.getName());
  private Map<Identifier, FeatureAccessor> m_features = new HashMap<Identifier, FeatureAccessor>();
  private GeoserverClientSynchronizer synchronizer;
  private static final String POST_TEMPLATE = "<wfs:GetFeature "
        + "service=\"WFS\" "
        + "version=\"1.1.0\" "
        + "outputFormat=\"${outputFormat}\" "
        + "xmlns:cdf=\"http://www.opengis.net/cite/data\" "
        + "xmlns:ogc=\"http://www.opengis.net/ogc\" "
        + "xmlns:wfs=\"http://www.opengis.net/wfs\" " + ">\n"
        "<wfs:Query typeName=\"topp:states\"> "
        +   "<ogc:Filter>"
        +    "<ogc:PropertyIsEqualTo> "
        +      "<ogc:Function name=\"sha1Sync\"> "
        +       "<ogc:Literal>-all</ogc:Literal> "
        +       "<ogc:Literal>${sha1Sync}</ogc:Literal> "
        +      "</ogc:Function> "
        +      "<ogc:Literal>true</ogc:Literal> "
        +    "</ogc:PropertyIsEqualTo> "
        +   "</ogc:Filter> "
        "</wfs:Query> "
        + "</wfs:GetFeature>";
 
  public static void main(String args[]) {
    StatesClient client = new StatesClient();
    client.setUp();
    try {
      client.run();
    } finally {
      client.tearDown();
    }
  }

  private void setUp() {
    LOGGER.log(Level.CONFIG, "template {0}", POST_TEMPLATE);
   
    String namespace = "http://www.openplans.org/topp";
    String schemaLocation = "http://localhost/geoserver/ows?service=WFS&version=1.0.0&request=DescribeFeatureType&typeName=topp:states&maxFeatures=50";
    ComplexConfiguration configuration = new ComplexConfiguration(namespace, schemaLocation);

    String wfsUrl = "http://localhost:80/geoserver/wfs";
    synchronizer = new GeoserverClientSynchronizer(configuration, wfsUrl, POST_TEMPLATE);
  }

  private void tearDown() {
  }

  private void run() {
    try {
      while (true) {
        System.out.println("BEGIN PASS");
        onePass();
      }
     
    } catch (Exception e) {
      LOGGER.log(Level.SEVERE, "failed", e);
    }
  }

  private void onePass() throws IOException, SAXException, ParserConfigurationException {
    synchronizer.synchronize(m_features);
    dumpFids();
   
    deleteSomeFids();
   
    synchronizer.synchronize(m_features);
    dumpFids();
   
    changeSomeFids();
   
    synchronizer.synchronize(m_features);
    dumpFids();
   
    addSomeExtraStates();

    synchronizer.synchronize(m_features);
    dumpFids();
   
    m_features.clear();
    synchronizer.synchronize(m_features);
    dumpFids();
   
    // Check when same
    synchronizer.synchronize(m_features);
  }

  private void addSomeExtraStates() {
    SimpleFeatureTypeBuilder typeBuilder = new SimpleFeatureTypeBuilder();
    typeBuilder.setName( "states" );
    typeBuilder.add( "STATE_NAME", String.class );
    typeBuilder.add( "FIPS", Integer.class );
    SimpleFeatureType type = typeBuilder.buildFeatureType();

    SimpleFeatureBuilder builder = new SimpleFeatureBuilder(type);
    builder.add("Hawaii");
    builder.add(51);
    SimpleFeature feature2 = builder.buildFeature("states.5051");

    builder.add("Alaska");
    builder.add(52);
    SimpleFeature feature3 = builder.buildFeature("states.5052");
   
    m_features.put(feature2.getIdentifier(), new FeatureAccessorImpl(feature2));
    m_features.put(feature3.getIdentifier(), new FeatureAccessorImpl(feature3));
  }

  private void changeSomeFids() {
    for (int i = 0; i < 10; i++) {
      int f = i+1;
      FeatureAccessor accessor = m_features.get(new FeatureIdImpl("states." + f));
      Feature feature = accessor.getFeature();
      feature.getProperty("STATE_NAME").setValue("Changed." + i);
    }
  }

  private void deleteSomeFids() {
    for (int i = 0; i < 10; i++) {
      int f = i+1;
      m_features.remove("states." + f);
    }
  }

  private void dumpFids() {
    int i = 1;
    for (Identifier fid : m_features.keySet()) {
      FeatureAccessor accessor = m_features.get(fid);
      Feature feature = accessor.getFeature();
      System.out.printf("%d: fid: %s name: %s%n",
          i, fid, feature.getProperty("STATE_NAME").getValue());
      i++;
    }
  }
}
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