package org.springframework.roo.addon.web.mvc.embedded.provider;
import java.io.ByteArrayInputStream;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Service;
import org.springframework.roo.addon.web.mvc.embedded.AbstractEmbeddedProvider;
import org.springframework.roo.addon.web.mvc.embedded.EmbeddedCompletor;
import org.springframework.roo.support.util.XmlElementBuilder;
import org.springframework.roo.support.util.XmlRoundTripUtils;
import org.springframework.roo.support.util.XmlUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
/**
* Provider to embed videos via a URL or specific install method.
*
* @author Stefan Schmidt
* @since 1.1
*/
@Component(immediate = true)
@Service
public class VideoEmbeddedProvider extends AbstractEmbeddedProvider {
public enum VideoProvider implements EmbeddedCompletor {
GOOGLE_VIDEO, SCREENR, VIDDLER, VIMEO, YOUTUBE;
@Override
public String toString() {
final ToStringBuilder builder = new ToStringBuilder(this);
builder.append("provider", name());
return builder.toString();
}
}
public boolean embed(final String url, final String viewName) {
if (url.contains("youtube.com")) {
// Expected format: http://www.youtube.com/watch?v=Gb1Z0lfl52I
final Map<String, String> options = new HashMap<String, String>();
options.put("provider", VideoProvider.YOUTUBE.name());
options.put("id", url.substring(url.indexOf("v=") + 2));
return install(viewName, options);
}
else if (url.contains("video.google.")) {
// Expected format:
// http://video.google.com/videoplay?docid=1753096859715615067#
final Map<String, String> options = new HashMap<String, String>();
options.put("provider", VideoProvider.GOOGLE_VIDEO.name());
options.put("id", url.substring(url.indexOf("docid=") + 6));
return install(viewName, options);
}
else if (url.contains("vimeo.com")) {
// Expected format http://vimeo.com/11262623
final Map<String, String> options = new HashMap<String, String>();
options.put("provider", VideoProvider.VIMEO.name());
options.put("id", url.substring(url.indexOf("vimeo.com/") + 10));
return install(viewName, options);
}
else if (url.contains("viddler.com")) {
// Expected format
// http://www.viddler.com/explore/failblog/videos/715/
final Map<String, String> options = new HashMap<String, String>();
options.put("provider", VideoProvider.VIDDLER.name());
options.put("id", getViddlerId(url));
return install(viewName, options);
}
else if (url.contains("screenr.com")) {
// Expected format http://screenr.com/GlR
final String[] split = url.split("/");
if (split.length > 3) {
final Map<String, String> options = new HashMap<String, String>();
options.put("provider", VideoProvider.SCREENR.name());
options.put("id", split[3]);
return install(viewName, options);
}
return false;
}
return false;
}
private String getViddlerId(final String url) {
final String xml = sendHttpGetRequest("http://lab.viddler.com/services/oembed/?url="
+ url + "&type=simple&format=xml");
if (xml != null) {
try {
final Document doc = XmlUtils.readXml(new ByteArrayInputStream(
xml.getBytes()));
final Element movie = XmlUtils.findRequiredElement(
"//param[@name='movie']", doc.getDocumentElement());
final String movieUrl = movie.getAttribute("value");
return movieUrl.substring(movieUrl.indexOf("simple/") + 7);
}
catch (final Exception e) {
throw new IllegalStateException(
"Could not parse oembed document from viddler.com", e);
}
}
return null;
}
public boolean install(final String viewName,
final Map<String, String> options) {
if (options == null || options.size() != 2
|| !options.containsKey("provider")
|| !options.containsKey("id")) {
return false;
}
final String provider = options.get("provider");
if (!isProviderSupported(provider, VideoProvider.values())) {
return false;
}
final String id = options.get("id");
if (StringUtils.isBlank(id)) {
return false;
}
installTagx("video");
final Element video = new XmlElementBuilder("embed:video", XmlUtils
.getDocumentBuilder().newDocument())
.addAttribute("id", "video_" + id).addAttribute("videoId", id)
.addAttribute("provider", provider.toLowerCase()).build();
video.setAttribute("z", XmlRoundTripUtils.calculateUniqueKeyFor(video));
installJspx(getViewName(viewName, provider.toLowerCase()), null, video);
return true;
}
}