WSO2 Mashup Server

JavaScript as a mashup composition language

A Hello World

functionhello(){
return"Hello World";
}

Calling a SOAP web service

functioninvokeGetVersionService(){
varversion=newWSRequest();
varoptions=newArray();
options.useSOAP=1.2;
options.useWSA=1.0;
options.action="http://services.mashup.wso2.org/version/ServiceInterface/getVersionRequest";
varpayload=null;
varresult;
try{
version.open(options,"http://localhost:7762/services/system/version",false);
version.send(payload);
result=version.responseE4X;
}catch(e){
system.log(e.toString(),"error");
returne.toString();
}
returnresult;
}

Working with feeds

// Creating an RSS 2.0 feed and writing it to file.
functioncreateRssFeed(){
// Creating the Feed
varfeed=newFeed();
feed.feedType="rss_2.0";
feed.title="This is a test Feed";
feed.description="This feed demonstrates the use of Feed host object to create an RSS 2.0 feed.";
feed.link="http://mooshup.com/rss20.xml";

// Creating Entries in the Feed
varentry=newEntry();
entry.title="This is a test entry.";
entry.description="This is a sample entry demonstrating the use of the Entry host object.";
feed.insertEntry(entry);

varentry2=newEntry();
entry2.title="This is another test entry.";
entry2.description="This is a sample entry demonstrating the use of the Entry host object.";

// Adding a Media Module to the entry
varmediaModule=new
MediaModule("http://www.earthshots.org/photos/387.jpg");
mediaModule.copyright="2007 Tad Bowman";
mediaModule.type="image/jpeg";
mediaModule.thumbnail="http://www.earthshots.org/photos/387.thumb.jpg";
entry2.addMediaModule(mediaModule);

feed.insertEntry(entry2);

// Writing the newly created Feed to a File
varresult=feed.writeTo("test-created-rss-feed.xml");

returnresult;
}

Web scraping

functionwebScrape(){
varconfig=<config>
<var-defname='response'>
<html-to-xml>
<httpmethod='get'url='http://ww2.wso2.org/~builder/'/>
</html-to-xml>
</var-def>
</config>;
varscraper=newScraper(config);
result=scraper.response;
returnresult;
}

Working with APP

functionpersistAuthenticatedAppFeed(){
// Creating an instance of APPClient
varclient=newAPPClient();
// Creating an instance of AtomFeed
varfeed=newAtomFeed();
// Setting login credentials for the client
client.credentials={username:"you@email.com",password:"xxx",service:"blogger",authtype:"google"};
// Retrieving and online feed
feed=client.getFeed("http://blog.mooshup.com/feeds/posts/default");
// Getting an array of individual entries from the feed
varentries=newArray();
entries=feed.getEntries();
// Writing the retrieved feed to a file
feed.writeTo("my-file-name.xml");
}

Periodic task scheduling

// Scheduling a function to be executed every 2 seconds
varuuid=system.setInterval('myJavaScriptFunction("parameterValue")',2000);
// Stopping the above scheduled task
system.clearInterval(uuid);

Sending an e-mail

functionsendEmail(){
varemail=newEmail("host","port","username","password");
varfile=newFile("temp.txt");
email.from="test@wso2.com";
email.to="test@wso2.com";// alternatively message.to can be an array of strings. Same goes for cc and bcc
email.cc="test@wso2.com";
email.bcc="test@wso2.com";
email.subject="WSO2 Mashup server 1.0 Released";
email.addAttachement(file,"temp.txt");// Optionally can add attachments, it has a variable number of arguments. each argument can be a File hostObject or a string representing a file.
// In this case we are sending two attachments (this demonstrates sending attachments using either a File Host Object or a path to the file).
email.text="WSO2 Mashup server 1.0 was Released on 28th January 2008";
email.send();
}

See also

References

External links