Fetch today's xkcd comic
Created: 2013-10-15 11:24:02
Use the local services and some filtering operations to fetch the comic strip image from http://xkcd.com/
Based on the FetchDailyDilbert workflow.
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Authors (1)
Tom Oinn, Stian Soiland-Reyes |
Titles (1)
Descriptions (1)
Use the local services and some filtering operations to fetch the comic strip image from http://xkcd.com/
Based on the FetchDailyDilbert workflow. |
Dependencies (0)
Processors (6)
Name |
Type |
Description |
getPage |
localworker |
ScriptURL inputURL = null;
if (base != void) {
inputURL = new URL(new URL(base), url);
}
else {
inputURL = new URL(url);
}
URLConnection con = inputURL.openConnection();
InputStream in = con.getInputStream();
InputStreamReader isr = new InputStreamReader(in);
Reader inReader = new BufferedReader(isr);
StringBuffer buf = new StringBuffer();
int ch;
while ((ch = inReader.read()) > -1) {
buf.append((char)ch);
}
inReader.close();
contents = buf.toString();
//String NEWLINE = System.getProperty("line.separator");
//
//URL inputURL = null;
//if (base != void) {
// inputURL = new URL(new URL(base), url);
//} else {
// inputURL = new URL(url);
//}
//StringBuffer result = new StringBuffer();
//BufferedReader reader = new BufferedReader(new InputStreamReader(inputURL.openStream()));
//String line = null;
//while ((line = reader.readLine()) != null) {
// result.append(line);
// result.append(NEWLINE);
//}
//
//contents = result.toString();
|
xkcdURL |
stringconstant |
Valuehttp://xkcd.com/ |
getImageLinks |
localworker |
ScriptString lowerCaseContent = document.toLowerCase();
int index = 0;
List imagelinks = new ArrayList();
while ((index = lowerCaseContent.indexOf("#");
String strLink = st.nextToken();
imagelinks.add(strLink);
}
|
findComicURL |
localworker |
Scriptfilteredlist = new ArrayList();
for (Iterator i = stringlist.iterator(); i.hasNext();) {
String item = (String) i.next();
if (item.matches(regex)) {
filteredlist.add(item);
}
}
|
comicURLRegex |
stringconstant |
Value.*/comics/.* |
getComicStrip |
localworker |
ScriptURL inputURL = null;
if (base != void) {
inputURL = new URL(new URL(base), url);
} else {
inputURL = new URL(url);
}
byte[] contents;
if (inputURL.openConnection().getContentLength() == -1) {
// Content size unknown, must read first...
byte[] buffer = new byte[1024];
int bytesRead = 0;
int totalBytesRead = 0;
InputStream is = inputURL.openStream();
while (bytesRead != -1) {
totalBytesRead += bytesRead;
bytesRead = is.read(buffer, 0, 1024);
}
contents = new byte[totalBytesRead];
} else {
contents = new byte[inputURL.openConnection().getContentLength()];
}
int bytesRead = 0;
int totalBytesRead = 0;
InputStream is = inputURL.openStream();
while (bytesRead != -1) {
bytesRead = is.read(contents, totalBytesRead, contents.length - totalBytesRead);
totalBytesRead += bytesRead;
if (contents.length==totalBytesRead) break;
}
image = contents;
|
Outputs (1)
Name |
Description |
todaysXkcd |
|
Datalinks (7)
Source |
Sink |
xkcdURL:value |
getPage:url |
getPage:contents |
getImageLinks:document |
comicURLRegex:value |
findComicURL:regex |
getImageLinks:imagelinks |
findComicURL:stringlist |
xkcdURL:value |
getComicStrip:base |
findComicURL:filteredlist |
getComicStrip:url |
getComicStrip:image |
todaysXkcd |
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