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Updating store with new vegetables catalog and adding basic support for shoppingCart services using JSON-RPC

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git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@829149 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
lresende 2009-10-23 17:56:00 +00:00
parent f60bcd37dc
commit a6e0a1a959
18 changed files with 480 additions and 48 deletions
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14
sandbox/sca-cloud-tutorial/store-appengine-webapp/.classpath
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@ -1,9 +1,11 @@
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" path="src"/>
<classpathentry kind="con" path="com.google.appengine.eclipse.core.GAE_CONTAINER"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
<classpathentry kind="lib" path="war/WEB-INF/lib/tuscany-sca-api-2.0-SNAPSHOT.jar"/>
<classpathentry kind="output" path="war/WEB-INF/classes"/>
<classpathentry kind="src" path="src"/>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
<classpathentry kind="lib" path="war/WEB-INF/lib/tuscany-sca-api-2.0-SNAPSHOT.jar"/>
<classpathentry kind="con" path="com.google.appengine.eclipse.core.GAE_CONTAINER"/>
<classpathentry combineaccessrules="false" kind="src" path="/tuscany-cloud-api"/>
<classpathentry combineaccessrules="false" kind="src" path="/tuscany-cloud-google"/>
<classpathentry combineaccessrules="false" kind="src" path="/tuscany-data-api"/>
<classpathentry kind="output" path="war/WEB-INF/classes"/>
</classpath>

11
sandbox/sca-cloud-tutorial/store-appengine-webapp/.project
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@ -21,19 +21,24 @@
</arguments>
</buildCommand>
<buildCommand>
<name>com.google.appengine.eclipse.core.projectValidator</name>
<name>com.google.gdt.eclipse.core.webAppProjectValidator</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>com.google.gdt.eclipse.core.webAppProjectValidator</name>
<name>com.google.appengine.eclipse.core.enhancerbuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>com.google.appengine.eclipse.core.projectValidator</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
<nature>com.google.appengine.eclipse.core.gaeNature</nature>
<nature>com.google.gdt.eclipse.core.webAppNature</nature>
<nature>com.google.appengine.eclipse.core.gaeNature</nature>
</natures>
</projectDescription>

2
sandbox/sca-cloud-tutorial/store-appengine-webapp/.settings/com.google.appengine.eclipse.core.prefs
View file

@ -1,4 +1,4 @@
#Thu Oct 15 18:16:29 PDT 2009
#Sun Oct 18 17:07:56 PDT 2009
eclipse.preferences.version=1
filesCopiedToWebInfLib=appengine-api-1.0-sdk-1.2.6.jar|appengine-api-labs-1.2.6.jar|datanucleus-appengine-1.0.3.jar|datanucleus-core-1.1.5.jar|datanucleus-jpa-1.1.5.jar|geronimo-jpa_3.0_spec-1.1.1.jar|geronimo-jta_1.1_spec-1.1.1.jar|jdo2-api-2.3-eb.jar
ormEnhancementInclusions=

12
sandbox/sca-cloud-tutorial/store-appengine-webapp/pom.xml
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@ -35,7 +35,19 @@
<artifactId>tuscany-sca-api</artifactId>
<version>2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.apache.tuscany.sca</groupId>
<artifactId>tuscany-cloud-api</artifactId>
<version>2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.apache.tuscany.sca</groupId>
<artifactId>tuscany-cloud-google</artifactId>
<version>2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.apache.tuscany.sca</groupId>
<artifactId>tuscany-implementation-java-runtime</artifactId>

37
sandbox/sca-cloud-tutorial/store-appengine-webapp/src/log4j.properties
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@ -1,27 +1,28 @@
# A default log4j configuration for log4j users.
#
# To use this configuration, deploy it into your application's WEB-INF/classes
# directory. You are also encouraged to edit it as you like.
#
# 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.
#
#
# Configure the console as our one appender
log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%d{HH:mm:ss,SSS} %-5p [%c] - %m%n
# tighten logging on the DataNucleus Categories
log4j.category.DataNucleus.JDO=WARN, A1
log4j.category.DataNucleus.Persistence=WARN, A1
log4j.category.DataNucleus.Cache=WARN, A1
log4j.category.DataNucleus.MetaData=WARN, A1
log4j.category.DataNucleus.General=WARN, A1
log4j.category.DataNucleus.Utility=WARN, A1
log4j.category.DataNucleus.Transaction=WARN, A1
log4j.category.DataNucleus.Datastore=WARN, A1
log4j.category.DataNucleus.ClassLoading=WARN, A1
log4j.category.DataNucleus.Plugin=WARN, A1
log4j.category.DataNucleus.ValueGeneration=WARN, A1
log4j.category.DataNucleus.Enhancer=WARN, A1
log4j.category.DataNucleus.SchemaTool=WARN, A1
#tuscany debug messages
log4j.category.org.apache.tuscany=ALL,A1

28
sandbox/sca-cloud-tutorial/store-appengine-webapp/src/services/Cart.java Normal file
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@ -0,0 +1,28 @@
/*
* 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;
import org.apache.tuscany.sca.data.collection.Collection;
import org.oasisopen.sca.annotation.Remotable;
@Remotable
public interface Cart extends Collection<String, Item> {
}

19
sandbox/sca-cloud-tutorial/store-appengine-webapp/src/services/Catalog.java
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@ -1,3 +1,22 @@
/*
* 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;
import org.oasisopen.sca.annotation.Remotable;

12
sandbox/sca-cloud-tutorial/store-appengine-webapp/src/services/CatalogAggregatorImpl.java
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@ -36,19 +36,29 @@ public class CatalogAggregatorImpl implements Catalog {
@Reference
public Catalog fruitsCatalog;
@Reference
public Catalog vegetablesCatalog;
public Item[] get() {
String currencySymbol = currencyConverter.getCurrencySymbol(currencyCode);
Item[] fruits = fruitsCatalog.get();
Item[] vegetables = vegetablesCatalog.get();
Item[] catalog = new Item[fruits.length];
Item[] catalog = new Item[fruits.length + vegetables.length];
int i =0;
for (Item item: fruits) {
double price = Double.valueOf(item.getPrice().substring(1));
price = currencyConverter.getConversion("USD", currencyCode, price);
catalog[i++] = new Item(item.getName(), currencySymbol + price);
}
for (Item item: vegetables) {
double price = Double.valueOf(item.getPrice().substring(1));
price = currencyConverter.getConversion("USD", currencyCode, price);
catalog[i++] = new Item(item.getName(), currencySymbol + price);
}
return catalog;
}

19
sandbox/sca-cloud-tutorial/store-appengine-webapp/src/services/CurrencyConverter.java
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@ -1,3 +1,22 @@
/*
* 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;
import org.oasisopen.sca.annotation.Remotable;

19
sandbox/sca-cloud-tutorial/store-appengine-webapp/src/services/CurrencyConverterImpl.java
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@ -1,3 +1,22 @@
/*
* 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;
import org.oasisopen.sca.annotation.Service;

19
sandbox/sca-cloud-tutorial/store-appengine-webapp/src/services/Item.java
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@ -1,3 +1,22 @@
/*
* 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;
import java.io.Serializable;

112
sandbox/sca-cloud-tutorial/store-appengine-webapp/src/services/ShoppingCartImpl.java Normal file
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@ -0,0 +1,112 @@
/*
* 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;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import org.apache.tuscany.sca.data.collection.Entry;
import org.apache.tuscany.sca.data.collection.NotFoundException;
import org.oasisopen.sca.annotation.Init;
import org.oasisopen.sca.annotation.Scope;
@Scope("COMPOSITE")
public class ShoppingCartImpl implements Cart, Total {
private Map<String, Item> cart;
@Init
public void init() {
cart = new HashMap<String, Item>();
}
public Entry<String, Item>[] getAll() {
Entry<String, Item>[] entries = new Entry[cart.size()];
int i = 0;
for (Map.Entry<String, Item> e: cart.entrySet()) {
entries[i++] = new Entry<String, Item>(e.getKey(), e.getValue());
}
return entries;
}
public Item get(String key) throws NotFoundException {
Item item = cart.get(key);
if (item == null) {
throw new NotFoundException(key);
} else {
return item;
}
}
public String post(String key, Item item) {
if (key == null || key.length() == 0) {
key ="cart-" + UUID.randomUUID().toString();
}
cart.put(key, item);
return key;
}
public void put(String key, Item item) throws NotFoundException {
if (!cart.containsKey(key)) {
throw new NotFoundException(key);
}
cart.put(key, item);
}
public void delete(String key) throws NotFoundException {
if (key == null || key.equals("")) {
cart.clear();
} else {
Item item = cart.remove(key);
if (item == null)
throw new NotFoundException(key);
}
}
public Entry<String, Item>[] query(String queryString) {
List<Entry<String, Item>> entries = new ArrayList<Entry<String,Item>>();
if (queryString.startsWith("name=")) {
String name = queryString.substring(5);
for (Map.Entry<String, Item> e: cart.entrySet()) {
Item item = e.getValue();
if (item.getName().equals(name)) {
entries.add(new Entry<String, Item>(e.getKey(), e.getValue()));
}
}
}
return entries.toArray(new Entry[entries.size()]);
}
public String getTotal() {
double total = 0;
String currencySymbol = "";
if (!cart.isEmpty()) {
Item item = cart.values().iterator().next();
currencySymbol = item.getPrice().substring(0, 1);
}
for (Item item : cart.values()) {
total += Double.valueOf(item.getPrice().substring(1));
}
return currencySymbol + String.valueOf(total);
}
}

29
sandbox/sca-cloud-tutorial/store-appengine-webapp/src/services/Total.java Normal file
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@ -0,0 +1,29 @@
/*
* 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;
import org.oasisopen.sca.annotation.Remotable;
@Remotable
public interface Total {
String getTotal();
}

14
sandbox/sca-cloud-tutorial/store-appengine-webapp/src/store.composite
View file

@ -34,6 +34,10 @@
<interface.java interface="services.Catalog"/>
<tuscany:binding.jsonrpc uri="http://tuscany-store-catalog.appspot.com/catalog"/>
</reference>
<reference name="vegetablesCatalog">
<interface.java interface="services.Catalog"/>
<tuscany:binding.jsonrpc uri="http://tuscany.figueiredos.com/store-catalog-ibmcloud-2x-webapp/Catalog"/>
</reference>
<reference name="currencyConverter" target="CurrencyConverter" />
</component>
@ -43,4 +47,14 @@
<interface.java interface="services.CurrencyConverter"/>
</service>
</component>
<component name="ShoppingCart">
<implementation.java class="services.ShoppingCartImpl"/>
<service name="Cart">
<tuscany:binding.jsonrpc uri="/shoppingCart/Cart"/>
</service>
<service name="Total">
<tuscany:binding.jsonrpc uri="/shoppingCart/Total"/>
</service>
</component>
</composite>

20
sandbox/sca-cloud-tutorial/store-appengine-webapp/war/WEB-INF/appengine-web.xml
View file

@ -1,7 +1,25 @@
<?xml version="1.0" encoding="utf-8"?>
<!--
* 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.
-->
<appengine-web-app xmlns="http://appengine.google.com/ns/1.0">
<application>tuscany-store</application>
<version>1</version>
<version>3</version>
<!-- Configure java.util.logging -->
<system-properties>

35
sandbox/sca-cloud-tutorial/store-appengine-webapp/war/WEB-INF/logging.properties
View file

@ -1,3 +1,23 @@
#
#
# 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.
#
#
# A default java.util.logging configuration.
# (All App Engine logging is through java.util.logging by default).
#
@ -12,21 +32,6 @@
# Set the default logging level for all loggers to WARNING
.level = WARNING
# Set the default logging level for ORM, specifically, to WARNING
DataNucleus.JDO.level=WARNING
DataNucleus.Persistence.level=WARNING
DataNucleus.Cache.level=WARNING
DataNucleus.MetaData.level=WARNING
DataNucleus.General.level=WARNING
DataNucleus.Utility.level=WARNING
DataNucleus.Transaction.level=WARNING
DataNucleus.Datastore.level=WARNING
DataNucleus.ClassLoading.level=WARNING
DataNucleus.Plugin.level=WARNING
DataNucleus.ValueGeneration.level=WARNING
DataNucleus.Enhancer.level=WARNING
DataNucleus.SchemaTool.level=WARNING
#tuscany debug messages
org.apache.tuscany.level=WARNING

18
sandbox/sca-cloud-tutorial/store-appengine-webapp/war/WEB-INF/web.xml
View file

@ -1,4 +1,22 @@
<?xml version="1.0" encoding="UTF-8"?>
<!--
* 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.
-->
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">

108
sandbox/sca-cloud-tutorial/store-appengine-webapp/war/store.html
View file

@ -1,6 +1,25 @@
<!--
* 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.
-->
<html>
<head>
<title>Store</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Online Store - Powered by Apache Tuscany</title>
<script type="text/javascript" src="dojo/dojo/dojo.js"></script>
@ -11,6 +30,10 @@
<script language="JavaScript">
var catalog = new dojo.rpc.JsonService("/catalogAggregator?smd");
var shoppingCart = new dojo.rpc.JsonService("/shoppingCart/Cart?smd");
var shoppingTotal = new dojo.rpc.JsonService("/shoppingCart/Total?smd");
var catalogItems;
@ -25,9 +48,76 @@
catalogItems = items;
}
// This handles the response from shoppingCart.getAll
// which is a collection of Entry<K,D>
function shoppingCart_getResponse(items) {
var list='';
for (var i=0; i<items.length; i++) {
//get the actual item, that is Entry.data
var item = items[i].data;
// process its attributes
var name = item.name;
var price = item.price
list += name + ' - ' + price + ' <br>';
}
document.getElementById("shoppingCart").innerHTML = list;
if (items.length != 0) {
try {
shoppingTotal.getTotal().addCallback(shoppingTotal_getTotalResponse);
}
catch(e){
alert(e);
}
}
}
function shoppingTotal_getTotalResponse(total,exception) {
if(exception) {
alert(exception.message);
return;
}
document.getElementById('total').innerHTML = total;
}
function shoppingCart_postResponse(entry) {
shoppingCart.getAll().addCallback(shoppingCart_getResponse);
}
function addToCart() {
var items = document.catalogForm.items;
var j = 0;
for (var i=0; i<items.length; i++)
if (items[i].checked) {
shoppingCart.post("", catalogItems[i]).addCallback(shoppingCart_postResponse);
items[i].checked = false;
}
}
function checkoutCart() {
document.getElementById('store').innerHTML='<h2>' +
'Thanks for Shopping With Us!</h2>'+
'<h2>Your Order</h2>'+
'<form name="orderForm">'+
document.getElementById('shoppingCart').innerHTML+
'<br>'+
document.getElementById('total').innerHTML+
'<br>'+
'<br>'+
'<input type="submit" value="Continue Shopping">'+
'</form>';
shoppingCart.del("");
}
function deleteCart() {
shoppingCart.del("");
document.getElementById('shoppingCart').innerHTML = "";
document.getElementById('total').innerHTML = "";
}
function init() {
try {
catalog.get().addCallback(catalog_getResponse);
shoppingCart.get("").addCallback(shoppingCart_getResponse);
} catch (e) {
alert(e);
}
@ -44,10 +134,22 @@
<h2>Catalog</h2>
<form name="catalogForm">
<div id="catalog" ></div>
<br>
<br>
<input type="button" onClick="addToCart()" value="Add to Cart">
</form>
<br>
<br>
<h2>Your Shopping Cart</h2>
<form name="shoppingCartForm">
<div id="shoppingCart"></div>
<br>
<div id="total"></div>
<br>
<input type="button" onClick="checkoutCart()" value="Checkout">
<input type="button" onClick="deleteCart()" value="Empty">
</form>
</div>
</body>
</html>