Author: buildbot
Date: Tue Jun 5 16:18:29 2012
New Revision: 820361
Log:
Production update by buildbot for camel
Modified:
websites/production/camel/content/cache/main.pageCache
websites/production/camel/content/loan-broker-example.html
Modified: websites/production/camel/content/cache/main.pageCache
==============================================================================
Binary files - no diff available.
Modified: websites/production/camel/content/loan-broker-example.html
==============================================================================
--- websites/production/camel/content/loan-broker-example.html (original)
+++ websites/production/camel/content/loan-broker-example.html Tue Jun 5
16:18:29 2012
@@ -83,7 +83,7 @@
The JMS version which leverages the message queue to connect the credit agency
and bank loan quote processors together, it just uses the InOnly exchange
pattern to handle the message asynchronously; <br clear="none">
the webservice version which shows how to integrate the credit agency and bank
web services together by using the InOut exchange pattern synchronously.</p>
-<h2><a shape="rect"
name="LoanBrokerExample-Implementationwithmessagequeue%28JMS%29"></a>Implementation
with message queue (JMS)</h2>
+<h2><a shape="rect"
name="LoanBrokerExample-Examplewithmessagequeue%28JMS%29"></a>Example with
message queue (JMS)</h2>
<p>The <a shape="rect" class="external-link"
href="https://svn.apache.org/repos/asf/camel/trunk/examples/camel-example-loan-broker/src/main/java/org/apache/camel/loanbroker/queue/version";>queue
version of loan broker</a> is based on the camel-jms component, and it shows
how to using the message queue to connect the different service models (such as
the credit agency , and banks). </p>
@@ -98,114 +98,8 @@ mvn exec:java -PQueue.Client
<p>To stop the example hit ctrl + c</p>
-<p>let's take a look how this service modules are put together.</p>
-<div class="error"><span class="error">Error formatting macro: snippet:
java.lang.IndexOutOfBoundsException: Index: 20, Size: 20</span> </div>
-
-<p>The CreditAgency , Bank and Translator are all the implementation of
Processor interface. We implement the business logical in the void
process(Exchange exchange) method.</p>
-
-<p>CreditAgency</p>
-
-<div class="error"><span class="error">Error formatting macro: snippet:
java.lang.IndexOutOfBoundsException: Index: 20, Size: 20</span> </div>
-
-<p>Bank</p>
-
-<div class="error"><span class="error">Error formatting macro: snippet:
java.lang.IndexOutOfBoundsException: Index: 20, Size: 20</span> </div>
-
-<p>Translator</p>
-
-<div class="error"><span class="error">Error formatting macro: snippet:
java.lang.IndexOutOfBoundsException: Index: 20, Size: 20</span> </div>
-
-
-<p>You may found we set a custom aggregation strategy to find out the lowest
loan rate from bank response message.</p>
-
-<div class="code panel" style="border-width: 1px;"><div class="codeContent
panelContent">
-<pre class="code-java"><span class="code-keyword">public</span> class
BankResponseAggregationStrategy <span class="code-keyword">implements</span>
AggregationStrategy {
-
- @Override
- <span class="code-keyword">public</span> Exchange aggregate(Exchange
oldExchange, Exchange newExchange) {
- <span class="code-comment">// the first time we only have the <span
class="code-keyword">new</span> exchange
-</span> <span class="code-keyword">if</span> (oldExchange == <span
class="code-keyword">null</span>) {
- <span class="code-keyword">return</span> newExchange;
- }
-
- <span class="code-object">Double</span> oldQuote =
oldExchange.getIn().getHeader(Constants.PROPERTY_RATE, <span
class="code-object">Double</span>.class);
- <span class="code-object">Double</span> newQuote =
newExchange.getIn().getHeader(Constants.PROPERTY_RATE, <span
class="code-object">Double</span>.class);
-
- <span class="code-comment">// <span class="code-keyword">return</span>
the winner with the lowest rate
-</span> <span class="code-keyword">if</span> (oldQuote.doubleValue()
<= newQuote.doubleValue()) {
- <span class="code-keyword">return</span> oldExchange;
- } <span class="code-keyword">else</span> {
- <span class="code-keyword">return</span> newExchange;
- }
- }
-
-}
-</pre>
-</div></div>
-
-<p>We start the loan broker after we start up the ActiveMq broker and the
connection factory of Camel-JMS component.</p>
-
-<div class="code panel" style="border-width: 1px;"><div class="codeContent
panelContent">
-<pre class="code-java"><span class="code-keyword">public</span> <span
class="code-keyword">static</span> void main(<span
class="code-object">String</span>... args) <span
class="code-keyword">throws</span> Exception {
- <span class="code-comment">// setup an embedded JMS broker
-</span> JmsBroker broker = <span class="code-keyword">new</span>
JmsBroker();
- broker.start();
-
- <span class="code-comment">// create a camel context
-</span> CamelContext context = <span class="code-keyword">new</span>
DefaultCamelContext();
-
- <span class="code-comment">// Set up the ActiveMQ JMS Components
-</span> ConnectionFactory connectionFactory = <span
class="code-keyword">new</span> ActiveMQConnectionFactory(<span
class="code-quote">"tcp:<span class="code-comment">//localhost:51616"</span>);
-</span> <span class="code-comment">// Note we can explicitly name the
component
-</span> context.addComponent(<span class="code-quote">"jms"</span>,
JmsComponent.jmsComponentAutoAcknowledge(connectionFactory));
-
- <span class="code-comment">// add the route
-</span> context.addRoutes(<span class="code-keyword">new</span>
LoanBrokerRoute());
-
- <span class="code-comment">// start Camel
-</span> context.start();
- <span class="code-object">System</span>.out.println(<span
class="code-quote">"Server is ready"</span>);
-
- <span class="code-comment">// let it run <span
class="code-keyword">for</span> 5 minutes before shutting down
-</span> <span class="code-object">Thread</span>.sleep(5 * 60 * 1000);
- context.stop();
- <span class="code-object">Thread</span>.sleep(1000);
- broker.stop();
-}
-</pre>
-</div></div>
-
-<p>Now we can send the request from client and pull the response message
back</p>
-
-<div class="code panel" style="border-width: 1px;"><div class="codeContent
panelContent">
-<pre class="code-java"><span class="code-keyword">public</span> <span
class="code-keyword">final</span> class Client {
-
- <span class="code-keyword">private</span> Client() {
- }
-
- <span class="code-keyword">public</span> <span
class="code-keyword">static</span> void main(<span
class="code-object">String</span> args[]) <span
class="code-keyword">throws</span> Exception {
- CamelContext context = <span class="code-keyword">new</span>
DefaultCamelContext();
- <span class="code-comment">// Set up the ActiveMQ JMS Components
-</span> ConnectionFactory connectionFactory = <span
class="code-keyword">new</span> ActiveMQConnectionFactory(<span
class="code-quote">"tcp:<span class="code-comment">//localhost:51616"</span>);
-</span> <span class="code-comment">// Note we can explicit name of the
component
-</span> context.addComponent(<span class="code-quote">"jms"</span>,
JmsComponent.jmsComponentAutoAcknowledge(connectionFactory));
- context.start();
-
- ProducerTemplate template = context.createProducerTemplate();
-
- <span class="code-object">String</span> out =
template.requestBodyAndHeader(<span class="code-quote">"jms:queue:loan"</span>,
<span class="code-keyword">null</span>, Constants.PROPERTY_SSN, <span
class="code-quote">"Client-A"</span>, <span
class="code-object">String</span>.class);
- <span class="code-object">System</span>.out.println(out);
-
- template.stop();
- context.stop();
- }
-
-}
-</pre>
-</div></div>
-
-<h2><a shape="rect"
name="LoanBrokerExample-Implementationwithwebservice"></a>Implementation with
web service</h2>
+<h2><a shape="rect" name="LoanBrokerExample-Examplewithwebservice"></a>Example
with web service</h2>
<p>The <a shape="rect" class="external-link"
href="https://svn.apache.org/repos/asf/camel/trunk/examples/camel-example-loan-broker/src/main/java/org/apache/camel/loanbroker/webservie/version";>web
service version of loan broker</a> is based on the camel-cxf component which
can produce and consume the SOAP message on the wire. It uses the InOut Message
exchange pattern, when the client send out the message to the router , it can
get the response message back from the same endpoint.<br clear="none">
When we send out the quote message to the three different banks, we could
choice to call the bank service one by one or send out the message
parallelly(one request thread per request).<br clear="none">
You can compare the response time after you run the sample.</p>
@@ -219,150 +113,7 @@ mvn exec:java -PWS.Client
</pre>
</div></div>
-<p>To stop the example hit ctrl + c</p>
-
-<p>First, let's go through the SEI (Service Endpoint Interface) for
LoanBroker, CreditAgency and Bank.</p>
-
-<p>LoanBroker</p>
-
-<div class="code panel" style="border-width: 1px;"><div class="codeContent
panelContent">
-<pre class="code-java">
-<span class="code-comment">// This SEI has no @WebService annotation, we use
the simple frontend API to create client and server
-</span><span class="code-keyword">public</span> <span
class="code-keyword">interface</span> LoanBrokerWS {
-
- <span class="code-object">String</span> getLoanQuote(<span
class="code-object">String</span> ssn, <span class="code-object">Double</span>
loanAmount, <span class="code-object">Integer</span> loanDuration);
-
-}
-</pre>
-</div></div>
-
-<p>CreditAgency</p>
-
-<div class="code panel" style="border-width: 1px;"><div class="codeContent
panelContent">
-<pre class="code-java">@WebService
-<span class="code-keyword">public</span> <span
class="code-keyword">interface</span> CreditAgencyWS {
-
- <span class="code-object">int</span> getCreditScore(<span
class="code-object">String</span> ssn);
-
- <span class="code-object">int</span> getCreditHistoryLength(<span
class="code-object">String</span> ssn);
-
-}
-</pre>
-</div></div>
-
-<p>Bank</p>
-
-<div class="code panel" style="border-width: 1px;"><div class="codeContent
panelContent">
-<pre class="code-java"><span class="code-comment">// Since we use @WebServices
here, please make sure to use JaxWs frontend API create the client and server
-</span>@WebService
-<span class="code-keyword">public</span> <span
class="code-keyword">interface</span> BankWS {
-
- <span class="code-object">String</span> getBankName();
-
- BankQuote getQuote(<span class="code-object">String</span> ssn, <span
class="code-object">double</span> loanAmount, <span
class="code-object">int</span> loanDuration, <span
class="code-object">int</span> creditHistory, <span
class="code-object">int</span> creditScore);
-
-}
-</pre>
-</div></div>
-
-<p>Here are two routing rules in DSL , one is for routing the request to bank
sequentially, the other is for calling the bank service parallely.</p>
-
-<div class="error"><span class="error">Error formatting macro: snippet:
java.lang.IndexOutOfBoundsException: Index: 20, Size: 20</span> </div>
-
-<p>We use the CreditScoreProcessor to send two request to credit agency to get
the credit history length and the credit score and prepare the request message
for the bank.</p>
-
-<div class="error"><span class="error">Error formatting macro: snippet:
java.lang.IndexOutOfBoundsException: Index: 20, Size: 20</span> </div>
-
-<p>Now we implement the Bank and CreditAgency SEI with the business logical
codes.</p>
-
-<p>Bank</p>
-
-<div class="code panel" style="border-width: 1px;"><div class="codeContent
panelContent">
-<pre class="code-java"><span class="code-keyword">public</span> class Bank
<span class="code-keyword">implements</span> BankWS {
- <span class="code-keyword">private</span> <span
class="code-object">String</span> bankName;
- <span class="code-keyword">private</span> <span
class="code-object">double</span> primeRate;
-
- <span class="code-keyword">public</span> Bank(<span
class="code-object">String</span> name) {
- bankName = name;
- primeRate = 3.5;
- }
-
- <span class="code-keyword">public</span> <span
class="code-object">String</span> getBankName() {
- <span class="code-keyword">return</span> bankName;
- }
-
- <span class="code-keyword">public</span> BankQuote getQuote(<span
class="code-object">String</span> ssn, <span class="code-object">double</span>
loanAmount, <span class="code-object">int</span> loanDuration, <span
class="code-object">int</span> creditHistory, <span
class="code-object">int</span> creditScore) {
- <span class="code-object">Double</span> rate = primeRate + (<span
class="code-object">double</span>)(loanDuration / 12) / 10 + <span
class="code-object">Math</span>.random() * 10 / 10;
- <span class="code-comment">// Wait <span
class="code-keyword">for</span> a <span class="code-keyword">while</span>
-</span> <span class="code-keyword">try</span> {
- <span class="code-object">Thread</span>.sleep(1000);
- } <span class="code-keyword">catch</span> (InterruptedException e) {
- <span class="code-comment">// <span class="code-keyword">do</span>
nothing here
-</span> }
- BankQuote result = <span class="code-keyword">new</span>
BankQuote(bankName, ssn, rate);
- <span class="code-keyword">return</span> result;
- }
-
-}
-</pre>
-</div></div>
-
-<p>CreditAgency</p>
-
-<div class="code panel" style="border-width: 1px;"><div class="codeContent
panelContent">
-<pre class="code-java"><span class="code-keyword">public</span> class
CreditAgency <span class="code-keyword">implements</span> CreditAgencyWS {
-
- <span class="code-keyword">public</span> <span
class="code-object">int</span> getCreditHistoryLength(<span
class="code-object">String</span> ssn) {
- <span class="code-object">int</span> creditScore = (<span
class="code-object">int</span>)(<span class="code-object">Math</span>.random()
* 600 + 300);
- <span class="code-keyword">return</span> creditScore;
- }
-
- <span class="code-keyword">public</span> <span
class="code-object">int</span> getCreditScore(<span
class="code-object">String</span> ssn) {
- <span class="code-object">int</span> creditHistoryLength = (<span
class="code-object">int</span>)(<span class="code-object">Math</span>.random()
* 19 + 1);
- <span class="code-keyword">return</span> creditHistoryLength;
- }
-
-}
-</pre>
-</div></div>
-
-<p>The below codes show how the start the loan broker.</p>
-
-<div class="error"><span class="error">Error formatting macro: snippet:
java.lang.IndexOutOfBoundsException: Index: 20, Size: 20</span> </div>
-
-<p>We can send the request by creating a client proxy with the LoanBroker SEI
in the client code. BTW, you can compare the two different routing rule's
performance by running the client.</p>
-
-<div class="code panel" style="border-width: 1px;"><div class="codeContent
panelContent">
-<pre class="code-java"><span class="code-keyword">public</span> <span
class="code-keyword">final</span> class Client {
-
- <span class="code-keyword">private</span> <span
class="code-keyword">static</span> <span class="code-object">String</span> url
= <span class="code-quote">"http:<span
class="code-comment">//localhost:9008/loanBroker"</span>;
-</span>
- <span class="code-keyword">private</span> Client() {
- }
-
- <span class="code-keyword">public</span> <span
class="code-keyword">static</span> LoanBrokerWS getProxy(<span
class="code-object">String</span> address) {
- <span class="code-comment">// Now we use the simple front API to
create the client proxy
-</span> ClientProxyFactoryBean proxyFactory = <span
class="code-keyword">new</span> ClientProxyFactoryBean();
- ClientFactoryBean clientBean = proxyFactory.getClientFactoryBean();
- clientBean.setAddress(address);
- clientBean.setServiceClass(LoanBrokerWS.class);
- clientBean.setBus(BusFactory.getDefaultBus());
- <span class="code-keyword">return</span> (LoanBrokerWS)
proxyFactory.create();
- }
-
- <span class="code-keyword">public</span> <span
class="code-keyword">static</span> void main(<span
class="code-object">String</span>[] args) {
- LoanBrokerWS loanBroker = getProxy(url);
-
- StopWatch watch = <span class="code-keyword">new</span> StopWatch();
- <span class="code-object">String</span> result =
loanBroker.getLoanQuote(<span class="code-quote">"SSN"</span>, 5000.00, 24);
-
- <span class="code-object">System</span>.out.println(<span
class="code-quote">"Took "</span> + watch.stop() + <span class="code-quote">"
milliseconds to call the loan broker service"</span>);
- <span class="code-object">System</span>.out.println(result);
- }
-
-}
-</pre>
-</div></div></div>
+<p>To stop the example hit ctrl + c</p></div>
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