org.visallo.web.routes.vertex.VertexHighlightedText Maven / Gradle / Ivy

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package org.visallo.web.routes.vertex;

import com.google.common.base.Strings;
import com.google.inject.Inject;
import com.v5analytics.webster.ParameterizedHandler;
import com.v5analytics.webster.annotations.Handle;
import com.v5analytics.webster.annotations.Optional;
import com.v5analytics.webster.annotations.Required;
import org.apache.commons.io.IOUtils;
import org.vertexium.Authorizations;
import org.vertexium.Graph;
import org.vertexium.Vertex;
import org.vertexium.property.StreamingPropertyValue;
import org.visallo.core.EntityHighlighter;
import org.visallo.core.exception.VisalloResourceNotFoundException;
import org.visallo.core.ingest.video.VideoTranscript;
import org.visallo.core.model.properties.MediaVisalloProperties;
import org.visallo.core.model.properties.VisalloProperties;
import org.visallo.core.model.termMention.TermMentionRepository;
import org.visallo.core.user.User;
import org.visallo.core.util.JsonSerializer;
import org.visallo.core.util.VisalloLogger;
import org.visallo.core.util.VisalloLoggerFactory;
import org.visallo.web.VisalloResponse;
import org.visallo.web.parameterProviders.ActiveWorkspaceId;

public class VertexHighlightedText implements ParameterizedHandler {
    private static final VisalloLogger LOGGER = VisalloLoggerFactory.getLogger(VertexHighlightedText.class);
    private final Graph graph;
    private final EntityHighlighter entityHighlighter;
    private final TermMentionRepository termMentionRepository;

    @Inject
    public VertexHighlightedText(
            final Graph graph,
            final EntityHighlighter entityHighlighter,
            final TermMentionRepository termMentionRepository
    ) {
        this.graph = graph;
        this.entityHighlighter = entityHighlighter;
        this.termMentionRepository = termMentionRepository;
    }

    @Handle
    public String handle(
            @Required(name = "graphVertexId") String graphVertexId,
            @Required(name = "propertyKey") String propertyKey,
            @Optional(name = "propertyName") String propertyName,
            @ActiveWorkspaceId String workspaceId,
            User user,
            Authorizations authorizations,
            VisalloResponse response
    ) throws Exception {
        Authorizations authorizationsWithTermMention = termMentionRepository.getAuthorizations(authorizations);

        Vertex artifactVertex = graph.getVertex(graphVertexId, authorizations);
        if (artifactVertex == null) {
            throw new VisalloResourceNotFoundException("Could not find vertex with id: " + graphVertexId);
        }

        if (Strings.isNullOrEmpty(propertyName)) {
            propertyName = VisalloProperties.TEXT.getPropertyName();
        }

        StreamingPropertyValue textPropertyValue = (StreamingPropertyValue) artifactVertex.getPropertyValue(propertyKey, propertyName);
        if (textPropertyValue != null) {
            LOGGER.debug("returning text for vertexId:%s property:%s", artifactVertex.getId(), propertyKey);
            String highlightedText;
            String text = IOUtils.toString(textPropertyValue.getInputStream(), "UTF-8");
            if (text == null) {
                highlightedText = "";
            } else {
                Iterable termMentions = termMentionRepository.findByOutVertexAndProperty(artifactVertex.getId(), propertyKey, propertyName, authorizationsWithTermMention);
                highlightedText = entityHighlighter.getHighlightedText(text, termMentions, workspaceId, authorizationsWithTermMention);
            }

            response.setContentType("text/html");
            return highlightedText;
        }

        VideoTranscript videoTranscript = MediaVisalloProperties.VIDEO_TRANSCRIPT.getPropertyValue(artifactVertex, propertyKey);
        if (videoTranscript != null) {
            LOGGER.debug("returning video transcript for vertexId:%s property:%s", artifactVertex.getId(), propertyKey);
            Iterable termMentions = termMentionRepository.findByOutVertexAndProperty(artifactVertex.getId(), propertyKey, propertyName, authorizations);
            VideoTranscript highlightedVideoTranscript = entityHighlighter.getHighlightedVideoTranscript(videoTranscript, termMentions, workspaceId, authorizations);
            response.setContentType("application/json");
            return highlightedVideoTranscript.toJson().toString();
        }

        videoTranscript = JsonSerializer.getSynthesisedVideoTranscription(artifactVertex, propertyKey);
        if (videoTranscript != null) {
            LOGGER.debug("returning synthesised video transcript for vertexId:%s property:%s", artifactVertex.getId(), propertyKey);
            Iterable termMentions = termMentionRepository.findByOutVertexAndProperty(artifactVertex.getId(), propertyKey, propertyName, authorizations);
            VideoTranscript highlightedVideoTranscript = entityHighlighter.getHighlightedVideoTranscript(videoTranscript, termMentions, workspaceId, authorizationsWithTermMention);
            response.setContentType("application/json");
            return highlightedVideoTranscript.toJson().toString();
        }

        return null;
    }
}