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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 services.db;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import org.apache.tuscany.sca.data.collection.Entry;
import org.apache.tuscany.sca.data.collection.NotFoundException;
import org.osoa.sca.ServiceRuntimeException;
import org.osoa.sca.annotations.Destroy;
import org.osoa.sca.annotations.Init;
import org.osoa.sca.annotations.Property;
import services.Cart;
import services.Item;
import services.Total;
public class ShoppingCartTableImpl implements Cart, Total {
@Property
public String database;
private Connection connection;
@Init
public void init() throws Exception {
Class.forName("org.apache.derby.jdbc.EmbeddedDriver", true, Thread.currentThread().getContextClassLoader());
String baseDir = System.getProperty("basedir");
String url = "jdbc:derby:directory:" + (baseDir != null? baseDir + "/" + database : database);
System.out.println("Connecting to database: " + url);
connection = DriverManager.getConnection(url, "", "");
}
@Destroy
public void shutdown() throws Exception {
if(connection != null) {
connection.close();
connection = null;
}
}
public Entry<String, Item>[] getAll() {
try {
Statement statement = connection.createStatement();
ResultSet results = statement.executeQuery("select * from Cart");
List<Entry<String, Item>> entries = new ArrayList<Entry<String, Item>>();
while (results.next()) {
Item item = new Item(results.getString("name"), results.getString("price"));
entries.add(new Entry<String, Item>(results.getString("id"), item));
}
return entries.toArray(new Entry[entries.size()]);
} catch (SQLException e) {
throw new ServiceRuntimeException(e);
}
}
public Item get(String key) throws NotFoundException {
try {
Statement statement = connection.createStatement();
ResultSet results = statement.executeQuery("select * from Cart where id = '" + key + "'");
if (results.next()) {
return new Item(results.getString("name"), results.getString("price"));
} else {
throw new NotFoundException(key);
}
} catch (SQLException e) {
throw new ServiceRuntimeException(e);
}
}
public String post(String key, Item item) {
if (key == null) {
key = "cart-" + UUID.randomUUID().toString();
}
try {
Statement statement = connection.createStatement();
String query = "insert into Cart values ('" + key + "', '" + item.getName() + "', '" + item.getPrice() + "')";
System.out.println(query);
statement.executeUpdate(query);
} catch (SQLException e) {
throw new ServiceRuntimeException(e);
}
return key;
}
public void put(String key, Item item) throws NotFoundException {
try {
Statement statement = connection.createStatement();
String query = "update into Cart set name = '" + item.getName() + "', price = '" + item.getPrice() + "' where id = '" + key + "'";
System.out.println(query);
int count = statement.executeUpdate(query);
if (count == 0)
throw new NotFoundException(key);
} catch (SQLException e) {
throw new ServiceRuntimeException(e);
}
}
public void delete(String key) throws NotFoundException {
try {
Statement statement = connection.createStatement();
if (key == null || key.equals("")) {
String query = "delete from Cart";
System.out.println(query);
statement.executeUpdate(query);
} else {
String query = "delete from Cart where id = '" + key + "'";
System.out.println(query);
int count = statement.executeUpdate(query);
if (count == 0)
throw new NotFoundException(key);
}
} catch (SQLException e) {
throw new ServiceRuntimeException(e);
}
}
public Entry<String, Item>[] query(String queryString) {
try {
Statement statement = connection.createStatement();
ResultSet results = statement.executeQuery("select * from Cart where " + queryString);
List<Entry<String, Item>> entries = new ArrayList<Entry<String, Item>>();
while (results.next()) {
Item item = new Item(results.getString("name"), results.getString("price"));
entries.add(new Entry<String, Item>(results.getString("id"), item));
}
return entries.toArray(new Entry[entries.size()]);
} catch (SQLException e) {
throw new ServiceRuntimeException(e);
}
}
public String getTotal() {
Entry<String, Item>[] entries = getAll();
double total = 0;
String currencySymbol = "";
if (entries.length > 0) {
Item item = entries[0].getData();
currencySymbol = item.getPrice().substring(0, 1);
}
for (Entry<String, Item> entry : entries) {
Item item = entry.getData();
total += Double.valueOf(item.getPrice().substring(1));
}
return currencySymbol + total;
}
public void confirmTotal() {
}
}
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