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authorAnton Tananaev <anton.tananaev@gmail.com>2015-12-07 10:09:08 +1300
committerAnton Tananaev <anton.tananaev@gmail.com>2015-12-07 10:09:08 +1300
commit5b57c0fdb81bae87ca487e1d0087f8927b3fd07f (patch)
treec3733bca54002ca694b6d7b83b147de87212c5eb /src/org/traccar
parent33b2a5c9ab70ffe7bbdd074ce430920d2a0d3941 (diff)
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Replace factory method with reflection
Diffstat (limited to 'src/org/traccar')
-rw-r--r--src/org/traccar/database/DataManager.java20
-rw-r--r--src/org/traccar/database/QueryBuilder.java23
-rw-r--r--src/org/traccar/model/Command.java7
-rw-r--r--src/org/traccar/model/Device.java7
-rw-r--r--src/org/traccar/model/Factory.java22
-rw-r--r--src/org/traccar/model/Permission.java7
-rw-r--r--src/org/traccar/model/Position.java7
-rw-r--r--src/org/traccar/model/Schema.java7
-rw-r--r--src/org/traccar/model/Server.java7
-rw-r--r--src/org/traccar/model/User.java7
-rw-r--r--src/org/traccar/web/DeviceServlet.java6
-rw-r--r--src/org/traccar/web/JsonConverter.java31
-rw-r--r--src/org/traccar/web/ServerServlet.java2
-rw-r--r--src/org/traccar/web/UserServlet.java6
14 files changed, 44 insertions, 115 deletions
diff --git a/src/org/traccar/database/DataManager.java b/src/org/traccar/database/DataManager.java
index 66d94ac91..7d8966d9a 100644
--- a/src/org/traccar/database/DataManager.java
+++ b/src/org/traccar/database/DataManager.java
@@ -171,7 +171,7 @@ public class DataManager implements IdentityManager {
if (schemaVersionQuery != null) {
Schema schema = QueryBuilder.create(dataSource, schemaVersionQuery)
- .executeQuerySingle(new Schema());
+ .executeQuerySingle(Schema.class);
int version = 0;
if (schema != null) {
@@ -246,7 +246,7 @@ public class DataManager implements IdentityManager {
public User login(String email, String password) throws SQLException {
User user = QueryBuilder.create(dataSource, getQuery("database.loginUser"))
.setString("email", email)
- .executeQuerySingle(new User());
+ .executeQuerySingle(User.class);
if (user != null && user.isPasswordValid(password)) {
return user;
} else {
@@ -256,13 +256,13 @@ public class DataManager implements IdentityManager {
public Collection<User> getUsers() throws SQLException {
return QueryBuilder.create(dataSource, getQuery("database.selectUsersAll"))
- .executeQuery(new User());
+ .executeQuery(User.class);
}
public User getUser(long userId) throws SQLException {
return QueryBuilder.create(dataSource, getQuery("database.selectUser"))
.setLong("id", userId)
- .executeQuerySingle(new User());
+ .executeQuerySingle(User.class);
}
public void addUser(User user) throws SQLException {
@@ -297,18 +297,18 @@ public class DataManager implements IdentityManager {
public Collection<Permission> getPermissions() throws SQLException {
return QueryBuilder.create(dataSource, getQuery("database.getPermissionsAll"))
- .executeQuery(new Permission());
+ .executeQuery(Permission.class);
}
public Collection<Device> getAllDevices() throws SQLException {
return QueryBuilder.create(dataSource, getQuery("database.selectDevicesAll"))
- .executeQuery(new Device());
+ .executeQuery(Device.class);
}
public Collection<Device> getDevices(long userId) throws SQLException {
return QueryBuilder.create(dataSource, getQuery("database.selectDevices"))
.setLong("userId", userId)
- .executeQuery(new Device());
+ .executeQuery(Device.class);
}
public void addDevice(Device device) throws SQLException {
@@ -365,7 +365,7 @@ public class DataManager implements IdentityManager {
.setLong("deviceId", deviceId)
.setDate("from", from)
.setDate("to", to)
- .executeQuery(new Position());
+ .executeQuery(Position.class);
}
public void addPosition(Position position) throws SQLException {
@@ -392,12 +392,12 @@ public class DataManager implements IdentityManager {
public Collection<Position> getLatestPositions() throws SQLException {
return QueryBuilder.create(dataSource, getQuery("database.selectLatestPositions"))
- .executeQuery(new Position());
+ .executeQuery(Position.class);
}
public Server getServer() throws SQLException {
return QueryBuilder.create(dataSource, getQuery("database.selectServers"))
- .executeQuerySingle(new Server());
+ .executeQuerySingle(Server.class);
}
public void updateServer(Server server) throws SQLException {
diff --git a/src/org/traccar/database/QueryBuilder.java b/src/org/traccar/database/QueryBuilder.java
index ca6335556..d0c1c649f 100644
--- a/src/org/traccar/database/QueryBuilder.java
+++ b/src/org/traccar/database/QueryBuilder.java
@@ -38,7 +38,6 @@ import javax.json.stream.JsonParsingException;
import javax.sql.DataSource;
import org.traccar.Context;
import org.traccar.helper.Log;
-import org.traccar.model.Factory;
import org.traccar.model.MiscFormatter;
public final class QueryBuilder {
@@ -272,8 +271,8 @@ public final class QueryBuilder {
void process(T object, ResultSet resultSet) throws SQLException;
}
- public <T extends Factory> T executeQuerySingle(T prototype) throws SQLException {
- Collection<T> result = executeQuery(prototype);
+ public <T> T executeQuerySingle(Class<T> clazz) throws SQLException {
+ Collection<T> result = executeQuery(clazz);
if (!result.isEmpty()) {
return result.iterator().next();
} else {
@@ -281,7 +280,7 @@ public final class QueryBuilder {
}
}
- private <T extends Factory> void addProcessors(
+ private <T> void addProcessors(
List<ResultSetProcessor<T>> processors, Class<?> parameterType, final Method method, final String name) {
if (parameterType.equals(boolean.class)) {
@@ -367,7 +366,7 @@ public final class QueryBuilder {
}
}
- public <T extends Factory> Collection<T> executeQuery(T prototype) throws SQLException {
+ public <T> Collection<T> executeQuery(Class<T> clazz) throws SQLException {
List<T> result = new LinkedList<>();
if (query != null) {
@@ -380,7 +379,7 @@ public final class QueryBuilder {
List<ResultSetProcessor<T>> processors = new LinkedList<>();
- Method[] methods = prototype.getClass().getMethods();
+ Method[] methods = clazz.getMethods();
for (final Method method : methods) {
if (method.getName().startsWith("set") && method.getParameterTypes().length == 1) {
@@ -404,11 +403,15 @@ public final class QueryBuilder {
}
while (resultSet.next()) {
- T object = (T) prototype.create();
- for (ResultSetProcessor<T> processor : processors) {
- processor.process(object, resultSet);
+ try {
+ T object = clazz.newInstance();
+ for (ResultSetProcessor<T> processor : processors) {
+ processor.process(object, resultSet);
+ }
+ result.add(object);
+ } catch (InstantiationException | IllegalAccessException e) {
+ throw new IllegalArgumentException();
}
- result.add(object);
}
}
diff --git a/src/org/traccar/model/Command.java b/src/org/traccar/model/Command.java
index fb3a37795..df62164c2 100644
--- a/src/org/traccar/model/Command.java
+++ b/src/org/traccar/model/Command.java
@@ -15,7 +15,7 @@
*/
package org.traccar.model;
-public class Command extends Extensible implements Factory {
+public class Command extends Extensible {
public static final String TYPE_POSITION_SINGLE = "positionSingle";
public static final String TYPE_POSITION_PERIODIC = "positionPeriodic";
@@ -35,9 +35,4 @@ public class Command extends Extensible implements Factory {
public static final String KEY_DEVICE_PASSWORD = "devicePassword";
public static final String KEY_RADIUS = "radius";
- @Override
- public Command create() {
- return new Command();
- }
-
}
diff --git a/src/org/traccar/model/Device.java b/src/org/traccar/model/Device.java
index fd62cc691..c82581c63 100644
--- a/src/org/traccar/model/Device.java
+++ b/src/org/traccar/model/Device.java
@@ -17,12 +17,7 @@ package org.traccar.model;
import java.util.Date;
-public class Device implements Factory {
-
- @Override
- public Device create() {
- return new Device();
- }
+public class Device {
private long id;
diff --git a/src/org/traccar/model/Factory.java b/src/org/traccar/model/Factory.java
deleted file mode 100644
index 150f52b80..000000000
--- a/src/org/traccar/model/Factory.java
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.traccar.model;
-
-public interface Factory {
-
- Object create();
-
-}
diff --git a/src/org/traccar/model/Permission.java b/src/org/traccar/model/Permission.java
index 065295ff9..393de2359 100644
--- a/src/org/traccar/model/Permission.java
+++ b/src/org/traccar/model/Permission.java
@@ -15,12 +15,7 @@
*/
package org.traccar.model;
-public class Permission implements Factory {
-
- @Override
- public Permission create() {
- return new Permission();
- }
+public class Permission {
private long userId;
diff --git a/src/org/traccar/model/Position.java b/src/org/traccar/model/Position.java
index 9494da042..1a38681ca 100644
--- a/src/org/traccar/model/Position.java
+++ b/src/org/traccar/model/Position.java
@@ -17,12 +17,7 @@ package org.traccar.model;
import java.util.Date;
-public class Position extends Event implements Factory {
-
- @Override
- public Position create() {
- return new Position();
- }
+public class Position extends Event {
private Date fixTime;
diff --git a/src/org/traccar/model/Schema.java b/src/org/traccar/model/Schema.java
index 3d1ce755f..0d0e58831 100644
--- a/src/org/traccar/model/Schema.java
+++ b/src/org/traccar/model/Schema.java
@@ -15,12 +15,7 @@
*/
package org.traccar.model;
-public class Schema implements Factory {
-
- @Override
- public Schema create() {
- return new Schema();
- }
+public class Schema {
private int version;
diff --git a/src/org/traccar/model/Server.java b/src/org/traccar/model/Server.java
index e96a40e27..880636a4c 100644
--- a/src/org/traccar/model/Server.java
+++ b/src/org/traccar/model/Server.java
@@ -15,12 +15,7 @@
*/
package org.traccar.model;
-public class Server implements Factory {
-
- @Override
- public Server create() {
- return new Server();
- }
+public class Server {
private long id;
diff --git a/src/org/traccar/model/User.java b/src/org/traccar/model/User.java
index 31e54752a..1531ba9e4 100644
--- a/src/org/traccar/model/User.java
+++ b/src/org/traccar/model/User.java
@@ -18,12 +18,7 @@ package org.traccar.model;
import org.traccar.helper.Hashing;
import org.traccar.web.JsonIgnore;
-public class User implements Factory {
-
- @Override
- public User create() {
- return new User();
- }
+public class User {
private long id;
diff --git a/src/org/traccar/web/DeviceServlet.java b/src/org/traccar/web/DeviceServlet.java
index 8f983ad78..a501bd8f6 100644
--- a/src/org/traccar/web/DeviceServlet.java
+++ b/src/org/traccar/web/DeviceServlet.java
@@ -70,7 +70,7 @@ public class DeviceServlet extends BaseServlet {
}
private void add(HttpServletRequest req, HttpServletResponse resp) throws Exception {
- Device device = JsonConverter.objectFromJson(req.getReader(), new Device());
+ Device device = JsonConverter.objectFromJson(req.getReader(), Device.class);
long userId = getUserId(req);
Context.getDataManager().addDevice(device);
Context.getDataManager().linkDevice(userId, device.getId());
@@ -79,14 +79,14 @@ public class DeviceServlet extends BaseServlet {
}
private void update(HttpServletRequest req, HttpServletResponse resp) throws Exception {
- Device device = JsonConverter.objectFromJson(req.getReader(), new Device());
+ Device device = JsonConverter.objectFromJson(req.getReader(), Device.class);
Context.getPermissionsManager().checkDevice(getUserId(req), device.getId());
Context.getDataManager().updateDevice(device);
sendResponse(resp.getWriter(), true);
}
private void remove(HttpServletRequest req, HttpServletResponse resp) throws Exception {
- Device device = JsonConverter.objectFromJson(req.getReader(), new Device());
+ Device device = JsonConverter.objectFromJson(req.getReader(), Device.class);
Context.getPermissionsManager().checkDevice(getUserId(req), device.getId());
Context.getDataManager().removeDevice(device);
Context.getPermissionsManager().refresh();
diff --git a/src/org/traccar/web/JsonConverter.java b/src/org/traccar/web/JsonConverter.java
index 2ef61fb13..8bf5607fb 100644
--- a/src/org/traccar/web/JsonConverter.java
+++ b/src/org/traccar/web/JsonConverter.java
@@ -35,7 +35,6 @@ import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormatter;
import org.joda.time.format.ISODateTimeFormat;
import org.traccar.helper.Log;
-import org.traccar.model.Factory;
import org.traccar.model.MiscFormatter;
public final class JsonConverter {
@@ -43,32 +42,12 @@ public final class JsonConverter {
private JsonConverter() {
}
- private static <T> T newClassInstance(Class<T> clazz) {
- try {
- return clazz.newInstance();
- } catch (InstantiationException | IllegalAccessException e) {
- throw new IllegalArgumentException();
- }
- }
-
private static final DateTimeFormatter DATE_FORMAT = ISODateTimeFormat.dateTime();
public static Date parseDate(String value) {
return DATE_FORMAT.parseDateTime(value).toDate();
}
- public static <T extends Factory> T objectFromJson(Reader reader, T prototype) throws ParseException {
- try (JsonReader jsonReader = Json.createReader(reader)) {
- return objectFromJson(jsonReader.readObject(), prototype);
- }
- }
-
- public static <T extends Factory> T objectFromJson(JsonObject json, T prototype) {
- T object = (T) prototype.create();
- Method[] methods = object.getClass().getMethods();
- return objectFromJson(json, object, methods);
- }
-
public static <T> T objectFromJson(Reader reader, Class<T> clazz) throws ParseException {
try (JsonReader jsonReader = Json.createReader(reader)) {
return objectFromJson(jsonReader.readObject(), clazz);
@@ -76,9 +55,13 @@ public final class JsonConverter {
}
public static <T> T objectFromJson(JsonObject json, Class<T> clazz) {
- T object = newClassInstance(clazz);
- Method[] methods = object.getClass().getMethods();
- return objectFromJson(json, object, methods);
+ try {
+ T object = clazz.newInstance();
+ Method[] methods = object.getClass().getMethods();
+ return objectFromJson(json, object, methods);
+ } catch (InstantiationException | IllegalAccessException e) {
+ throw new IllegalArgumentException();
+ }
}
private static <T> T objectFromJson(JsonObject json, T object, Method[] methods) {
diff --git a/src/org/traccar/web/ServerServlet.java b/src/org/traccar/web/ServerServlet.java
index 7ed096bc6..b0ee181da 100644
--- a/src/org/traccar/web/ServerServlet.java
+++ b/src/org/traccar/web/ServerServlet.java
@@ -44,7 +44,7 @@ public class ServerServlet extends BaseServlet {
}
private void update(HttpServletRequest req, HttpServletResponse resp) throws Exception {
- Server server = JsonConverter.objectFromJson(req.getReader(), new Server());
+ Server server = JsonConverter.objectFromJson(req.getReader(), Server.class);
Context.getPermissionsManager().checkAdmin(getUserId(req));
Context.getDataManager().updateServer(server);
sendResponse(resp.getWriter(), true);
diff --git a/src/org/traccar/web/UserServlet.java b/src/org/traccar/web/UserServlet.java
index 6bd870d4d..ef1888667 100644
--- a/src/org/traccar/web/UserServlet.java
+++ b/src/org/traccar/web/UserServlet.java
@@ -51,7 +51,7 @@ public class UserServlet extends BaseServlet {
}
private void add(HttpServletRequest req, HttpServletResponse resp) throws Exception {
- User user = JsonConverter.objectFromJson(req.getReader(), new User());
+ User user = JsonConverter.objectFromJson(req.getReader(), User.class);
Context.getPermissionsManager().checkUser(getUserId(req), user.getId());
Context.getDataManager().addUser(user);
Context.getPermissionsManager().refresh();
@@ -59,7 +59,7 @@ public class UserServlet extends BaseServlet {
}
private void update(HttpServletRequest req, HttpServletResponse resp) throws Exception {
- User user = JsonConverter.objectFromJson(req.getReader(), new User());
+ User user = JsonConverter.objectFromJson(req.getReader(), User.class);
if (user.getAdmin()) {
Context.getPermissionsManager().checkAdmin(getUserId(req));
} else {
@@ -71,7 +71,7 @@ public class UserServlet extends BaseServlet {
}
private void remove(HttpServletRequest req, HttpServletResponse resp) throws Exception {
- User user = JsonConverter.objectFromJson(req.getReader(), new User());
+ User user = JsonConverter.objectFromJson(req.getReader(), User.class);
Context.getPermissionsManager().checkUser(getUserId(req), user.getId());
Context.getDataManager().removeUser(user);
Context.getPermissionsManager().refresh();