cidades vizinhas

Author: boaglio

src/main/java/com/boaglio/casadocodigo/mongodb/controller/ZipcodesController.java

@@ -28,26 +28,29 @@ public String index(ModelMap model) {
 
 }
 
-@RequestMapping(value = "/calcular",method = RequestMethod.GET)
+@RequestMapping(value = "/calcular",method = RequestMethod.POST)
 public String detalhe(@RequestParam("idCidadeOrigem") String idCidadeOrigem,@RequestParam("idCidadeDestino") String idCidadeDestino,ModelMap model) {
 
-Zip zip1 = repository.findById(idCidadeOrigem);
-System.out.println("cidade origem =" + zip1);
-Zip zip2 = repository.findById(idCidadeDestino);
-System.out.println("cidade destino =" + zip2);
+Zip zipOrigem = repository.findById(idCidadeOrigem);
+System.out.println("cidade origem =" + zipOrigem);
+Zip zipDestino = repository.findById(idCidadeDestino);
+System.out.println("cidade destino =" + zipDestino);
 
-double distancia = CalculaDistancia.distance(zip1.getLoc().getX(),zip1.getLoc().getY(),zip2.getLoc().getX(),zip2.getLoc().getY());
+double distancia = CalculaDistancia.distance(zipOrigem.getLoc().getX(),zipOrigem.getLoc().getY(),zipDestino.getLoc().getX(),zipDestino.getLoc().getY());
 model.addAttribute("distancia",distancia);
 System.out.println("distancia entre as duas =" + distancia);
 
-model.addAttribute("cidadeOrigem",zip1.getCity() + " (" + zip1.getState() + ")");
-model.addAttribute("cidadeDestino",zip2.getCity() + " (" + zip2.getState() + ")");
+model.addAttribute("cidadeOrigem",zipOrigem.getCity() + " (" + zipOrigem.getState() + ")");
+model.addAttribute("cidadeDestino",zipDestino.getCity() + " (" + zipDestino.getState() + ")");
 
-model.addAttribute("latitudeOrigem",zip1.getLoc().getX());
-model.addAttribute("longitudeOrigem",zip1.getLoc().getY());
+model.addAttribute("latitudeOrigem",zipOrigem.getLoc().getX());
+model.addAttribute("longitudeOrigem",zipOrigem.getLoc().getY());
 
-model.addAttribute("latitudeDestino",zip2.getLoc().getX());
-model.addAttribute("longitudeDestino",zip2.getLoc().getY());
+model.addAttribute("latitudeDestino",zipDestino.getLoc().getX());
+model.addAttribute("longitudeDestino",zipDestino.getLoc().getY());
+
+List<Zip> cidadesProximas = repository.findCidadesProximas(zipDestino.getLoc().getX(),zipDestino.getLoc().getY());
+model.addAttribute("cidadesProximas",cidadesProximas);
 
 return "calcular";
 

src/main/java/com/boaglio/casadocodigo/mongodb/model/Loc.java

@@ -53,4 +53,24 @@ public String toString() {
 return "Zip [id=" + id + ", city=" + city + ", state=" + state + ", loc=" + loc + "]";
 }
 
+@Override
+public int hashCode() {
+final int prime = 31;
+int result = 1;
+result = prime * result + (id == null ? 0 : id.hashCode());
+return result;
+}
+
+@Override
+public boolean equals(Object obj) {
+if (this == obj) { return true; }
+if (obj == null) { return false; }
+if (getClass() != obj.getClass()) { return false; }
+Zip other = (Zip) obj;
+if (id == null) {
+if (other.id != null) { return false; }
+} else if (!id.equals(other.id)) { return false; }
+return true;
+}
+
 }

src/main/java/com/boaglio/casadocodigo/mongodb/model/Zip.java

@@ -5,16 +5,20 @@
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.domain.Sort;
+import org.springframework.data.geo.Point;
 import org.springframework.data.mongodb.core.MongoTemplate;
 import org.springframework.data.mongodb.core.query.Criteria;
 import org.springframework.data.mongodb.core.query.Query;
 import org.springframework.stereotype.Repository;
 
 import com.boaglio.casadocodigo.mongodb.model.Zip;
+import com.boaglio.casadocodigo.mongodb.util.CalculaDistancia;
 
 @Repository
 public class ZipsRepository {
 
+public static final Double RAIO_DE_DISTANCIA_EM_KM = 90.0d;
+
 @Autowired
 private MongoTemplate mongoTemplate;
 
@@ -25,7 +29,7 @@ public List<Zip> findAll() {
 query.with(new Sort(Sort.Direction.ASC,"city"));
 zips = mongoTemplate.find(query,Zip.class);
 
-System.out.println("total de zips = " + zips.size());
+System.out.println("total de cidades = " + zips.size());
 return zips;
 }
 
@@ -41,4 +45,19 @@ public Zip findById(String id) {
 return zip;
 }
 
+public List<Zip> findCidadesProximas(Double x,Double y) {
+
+List<Zip> zips = new ArrayList<Zip>();
+
+Criteria criteria = new Criteria("loc").near(new Point(x,y)).maxDistance(CalculaDistancia.getInKilometer(RAIO_DE_DISTANCIA_EM_KM));
+Query buscaCidades = new Query(criteria);
+zips = mongoTemplate.find(buscaCidades.limit(11),Zip.class);
+
+zips.remove(zips.get(0));
+
+System.out.println("total de cidades proximas = " + zips.size());
+
+return zips;
+}
+
 }

src/main/java/com/boaglio/casadocodigo/mongodb/repository/ZipsRepository.java

@@ -6,6 +6,8 @@
  */
 public class CalculaDistancia {
 
+public static final Double KILOMETER = 111.0d;
+
 public static double distance(double lon1,double lat1,double lon2,double lat2) {
 double theta = lon1 - lon2;
 double dist = Math.sin(deg2rad(lat1)) * Math.sin(deg2rad(lat2)) + Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2)) * Math.cos(deg2rad(theta));
@@ -30,6 +32,10 @@ private static double rad2deg(double rad) {
 return rad * 180 / Math.PI;
 }
 
+public static Double getInKilometer(Double maxdistance) {
+return maxdistance / KILOMETER;
+}
+
 public static void main(String[] args) {
 System.out.println("Miami ate Orlando");
 System.out.println(distance(80.441031,25.661502,81.408162,28.487102) + " Km");

src/main/java/com/boaglio/casadocodigo/mongodb/util/CalculaDistancia.java

@@ -2,11 +2,13 @@
 <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
 
 <%@ page import="java.util.*" %>
+<%@ page import="com.boaglio.casadocodigo.mongodb.util.*" %>
 
 <html>
  <head>
  <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
  <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap-theme.min.css">
+ <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
  <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
 </head>
 <body>
@@ -42,6 +44,19 @@
  </a>
  </div>
 
+ <div class="col-md-2">
+ <span class="label label-info"> Cidades pr&oacute;ximas</span>
+ <ul class="list-group">
+ <c:forEach var="cidadeProxima" items="${cidadesProximas}">
+ <li class="list-group-item">
+ <a href="http://maps.google.com/?q=<c:out value="${cidadeProxima.loc.y}" />,-<c:out value="${cidadeProxima.loc.x}" />" target="_BLANK">
+ <c:out value="${cidadeProxima.city}" />-<c:out value="${cidadeProxima.state}" />
+ </a>
+ </li>
+ </c:forEach>
+ </ul>
+ </div>
+
  </div>
  <br/><br/>
  <div class="row">
@@ -52,7 +67,6 @@
  <input class="btn btn-primary btn-lg" type="submit" value="voltar" />
  </form>
 
-
  </div>
 
  </div>

src/main/webapp/WEB-INF/pages/calcular.jsp

@@ -4,6 +4,7 @@
  <head>
  <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
  <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap-theme.min.css">
+ <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
  <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
 </head>
 <body>
@@ -16,40 +17,40 @@
  <span class="alert alert-info">Dist&acirc;ncia entre cidades americanas</span>
  </div>
  <br/>
- <form class="form-horizontal" action="calcular" >
+
+ <form class="form-horizontal" action="calcular" method="post" >
 
  <div class="form-group">
  <label for="sel1">Origem::</label>
- <select name="idCidadeOrigem" class="form-control">
+ <select id="idCidadeOrigem" name="idCidadeOrigem" class="form-control">
  <c:forEach var="zip1" items="${zips}">
- <option value="<c:out value="${zip1.id}" />">
+ <option value="<c:out value="${zip1.id}" />"<c:if test="${zip1.city=='MIAMI' && zip1.state=='FL' }">selected</c:if> >
  <c:out value="${zip1.city}" /> - <c:out value="${zip1.state}" />
  </option>
  </c:forEach>
  </select>
  </div>
 
- <div class="form-group">
+  <div class="form-group">
  <label for="sel1">Destino:</label>
- <select name="idCidadeDestino" class="form-control">
+  <select name="idCidadeDestino" class="form-control">
  <c:forEach var="zip2" items="${zips}">
- <option value="<c:out value="${zip2.id}" />">
+ <option value="<c:out value="${zip2.id}" />"<c:if test="${zip2.city=='ORLANDO' && zip2.state=='FL' }">selected</c:if> >
  <c:out value="${zip2.city}" /> - <c:out value="${zip2.state}" />
  </option>
  </c:forEach>
- </select>
- </div>
+  </select>
+  </div>
 
- <div class="form-group">
- <input class="btn btn-primary btn-lg" type="submit" value="calcular..." />
- </div>
-
- </div>
+ <div class="form-group">
+ <input class="btn btn-primary btn-lg" type="submit" value="calcular..." />
+ </div>
 
  </form>
 
  </div>
+ </div>
 
  <br/><br/>
  </body>
-</html>
+</html>