package io.lumify.web.routes.vertex;
import io.lumify.miniweb.HandlerChain;
import io.lumify.miniweb.utils.UrlUtils;
import com.google.inject.Inject;
import io.lumify.core.config.Configuration;
import io.lumify.core.model.artifactThumbnails.ArtifactThumbnailRepository;
import io.lumify.core.model.user.UserRepository;
import io.lumify.core.model.workspace.WorkspaceRepository;
import io.lumify.core.user.User;
import io.lumify.core.util.LumifyLogger;
import io.lumify.core.util.LumifyLoggerFactory;
import io.lumify.web.BaseRequestHandler;
import org.apache.commons.io.IOUtils;
import org.securegraph.Authorizations;
import org.securegraph.Graph;
import org.securegraph.Vertex;
import org.securegraph.property.StreamingPropertyValue;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.InputStream;
import static io.lumify.core.model.properties.MediaLumifyProperties.VIDEO_PREVIEW_IMAGE;
public class VertexVideoPreviewImage extends BaseRequestHandler {
private static final LumifyLogger LOGGER = LumifyLoggerFactory.getLogger(VertexVideoPreviewImage.class);
private final Graph graph;
private final ArtifactThumbnailRepository artifactThumbnailRepository;
@Inject
public VertexVideoPreviewImage(
final Graph graph,
final ArtifactThumbnailRepository artifactThumbnailRepository,
final UserRepository userRepository,
final WorkspaceRepository workspaceRepository,
final Configuration configuration) {
super(userRepository, workspaceRepository, configuration);
this.graph = graph;
this.artifactThumbnailRepository = artifactThumbnailRepository;
}
@Override
public void handle(HttpServletRequest request, HttpServletResponse response, HandlerChain chain) throws Exception {
User user = getUser(request);
Authorizations authorizations = getAuthorizations(request, user);
String graphVertexId = UrlUtils.urlDecode(getAttributeString(request, "graphVertexId"));
Vertex artifactVertex = graph.getVertex(graphVertexId, authorizations);
if (artifactVertex == null) {
respondWithNotFound(response);
return;
}
String widthStr = getOptionalParameter(request, "width");
int[] boundaryDims = new int[]{200 * ArtifactThumbnailRepository.FRAMES_PER_PREVIEW, 200};
if (widthStr != null) {
boundaryDims[0] = Integer.parseInt(widthStr) * ArtifactThumbnailRepository.FRAMES_PER_PREVIEW;
boundaryDims[1] = Integer.parseInt(widthStr);
response.setContentType("image/jpeg");
response.addHeader("Content-Disposition", "inline; filename=videoPreview" + boundaryDims[0] + ".jpg");
setMaxAge(response, EXPIRES_1_HOUR);
byte[] thumbnailData = artifactThumbnailRepository.getThumbnailData(artifactVertex.getId(), "video-preview", boundaryDims[0], boundaryDims[1], user);
if (thumbnailData != null) {
LOGGER.debug("Cache hit for: %s (video-preview) %d x %d", artifactVertex.getId().toString(), boundaryDims[0], boundaryDims[1]);
ServletOutputStream out = response.getOutputStream();
out.write(thumbnailData);
out.close();
return;
}
}
StreamingPropertyValue videoPreviewImageValue = VIDEO_PREVIEW_IMAGE.getPropertyValue(artifactVertex);
if (videoPreviewImageValue == null) {
LOGGER.warn("Could not find video preview image for artifact: %s", artifactVertex.getId().toString());
respondWithNotFound(response);
return;
}
InputStream in = videoPreviewImageValue.getInputStream();
try {
if (widthStr != null) {
LOGGER.info("Cache miss for: %s (video-preview) %d x %d", artifactVertex.getId().toString(), boundaryDims[0], boundaryDims[1]);
response.setContentType("image/jpeg");
response.addHeader("Content-Disposition", "inline; filename=videoPreview" + boundaryDims[0] + ".jpg");
setMaxAge(response, EXPIRES_1_HOUR);
byte[] thumbnailData = artifactThumbnailRepository.createThumbnail(artifactVertex, "video-preview", in, boundaryDims, user).getThumbnailData();
ServletOutputStream out = response.getOutputStream();
out.write(thumbnailData);
out.close();
} else {
response.setContentType("image/png");
IOUtils.copy(in, response.getOutputStream());
}
} finally {
in.close();
}
}
}