private String path(final String resource, final Object... params) {
final String path;
final Escaper escaper = UrlEscapers.urlPathSegmentEscaper();
if (params.length == 0) {
path = resource;
} else {
final List<String> encodedParams = Lists.newArrayList();
for (final Object param : params) {
encodedParams.add(escaper.escape(param.toString()));
}
path = format(resource, encodedParams.toArray());
}
return path;
}
@RequestMapping(
value = "/channel/{channelId}/artifacts/{artifactId}/generate",
method = RequestMethod.GET)
@HttpConstraint(PERMIT)
public ModelAndView generate(
@PathVariable("channelId") final String channelId,
@PathVariable("artifactId") final String artifactId) {
return Channels.withArtifact(
this.service,
channelId,
artifactId,
ModifiableChannel.class,
(channel, artifact) -> {
channel.getContext().regenerate(artifact.getId());
return new ModelAndView(
"redirect:/channel/"
+ UrlEscapers.urlPathSegmentEscaper().escape(artifact.getChannelId().getId())
+ "/view");
});
}
@Override
public void init() {
HttpURLConnection conn = null;
try {
StringBuilder urlMaker = new StringBuilder(url);
if (!params.isEmpty()) {
Escaper escaper = UrlEscapers.urlPathSegmentEscaper();
urlMaker.append('?');
for (Map.Entry<String, String> entry : params.entrySet()) {
urlMaker.append(escaper.escape(entry.getKey()));
urlMaker.append('=');
urlMaker.append(escaper.escape(entry.getValue()));
urlMaker.append('&');
}
}
URL javaUrl = new URL(urlMaker.toString());
conn = (HttpURLConnection) javaUrl.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod("POST");
if (!data.isNull()) {
writeData(conn);
}
underlyingInputStream = conn.getInputStream();
bundleizer = format.createBundleizer(underlyingInputStream, new ListBundle());
} catch (Exception outer) {
if (conn != null && conn.getErrorStream() != null) {
try {
log.error(
"URL connection was unsuccessful. Response is {}",
new String(ByteStreams.toByteArray(conn.getErrorStream())));
} catch (IOException inner) {
log.error("During connection error failure to read error stream: ", inner);
}
}
throw Throwables.propagate(outer);
}
}
