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From source file:org.sfs.nodes.compute.container.GetContainer.java
@Override public void handle(final SfsRequest httpServerRequest) { VertxContext<Server> vertxContext = httpServerRequest.vertxContext(); aVoid().flatMap(new Authenticate(httpServerRequest)) .flatMap(new ValidateActionAuthenticated(httpServerRequest)) .map(aVoid -> fromSfsRequest(httpServerRequest)).map(new ValidateContainerPath()) .flatMap(new LoadAccountAndContainer(vertxContext)) .flatMap(new ValidateActionContainerListObjects(httpServerRequest)).flatMap(persistentContainer -> { HttpServerResponse httpServerResponse = httpServerRequest.response(); MultiMap queryParams = httpServerRequest.params(); MultiMap headerParams = httpServerRequest.headers(); String format = queryParams.get(FORMAT); String accept = headerParams.get(ACCEPT); MediaType parsedAccept = null; if (equalsIgnoreCase("xml", format)) { parsedAccept = APPLICATION_XML_UTF_8; } else if (equalsIgnoreCase("json", format)) { parsedAccept = JSON_UTF_8; }/* w ww .java 2 s. com*/ if (parsedAccept == null) { if (!isNullOrEmpty(accept)) { parsedAccept = parse(accept); } } if (parsedAccept == null || (!PLAIN_TEXT_UTF_8.is(parsedAccept) && !APPLICATION_XML_UTF_8.is(parsedAccept) && !JSON_UTF_8.equals(parsedAccept))) { parsedAccept = PLAIN_TEXT_UTF_8; } Observable<Optional<ContainerStats>> oContainerStats; boolean hasPrefix = !Strings.isNullOrEmpty(queryParams.get(SfsHttpQueryParams.PREFIX)); if (hasPrefix) { oContainerStats = just(persistentContainer) .flatMap(new LoadContainerStats(httpServerRequest.vertxContext())) .map(Optional::of); } else { oContainerStats = Defer.just(Optional.<ContainerStats>absent()); } Observable<ObjectList> oObjectListing = just(persistentContainer) .flatMap(new ListObjects(httpServerRequest)); MediaType finalParsedAccept = parsedAccept; return combineSinglesDelayError(oContainerStats, oObjectListing, (containerStats, objectList) -> { if (containerStats.isPresent()) { Metadata metadata = persistentContainer.getMetadata(); for (String key : metadata.keySet()) { SortedSet<String> values = metadata.get(key); if (values != null && !values.isEmpty()) { httpServerResponse.putHeader( format("%s%s", X_ADD_CONTAINER_META_PREFIX, key), values); } } httpServerResponse.putHeader(X_CONTAINER_OBJECT_COUNT, valueOf(containerStats.get().getObjectCount())); httpServerResponse.putHeader(X_CONTAINER_BYTES_USED, BigDecimal.valueOf(containerStats.get().getBytesUsed()) .setScale(0, ROUND_HALF_UP).toString()); } BufferOutputStream bufferOutputStream = new BufferOutputStream(); if (JSON_UTF_8.is(finalParsedAccept)) { try { JsonFactory jsonFactory = vertxContext.verticle().jsonFactory(); JsonGenerator jg = jsonFactory.createGenerator(bufferOutputStream, UTF8); jg.writeStartArray(); for (ListedObject listedObject : ordered(objectList.getObjects())) { jg.writeStartObject(); jg.writeStringField("hash", base16().lowerCase().encode(listedObject.getEtag())); jg.writeStringField("last_modified", toDateTimeString(listedObject.getLastModified())); jg.writeNumberField("bytes", listedObject.getLength()); jg.writeStringField("content_type", listedObject.getContentType()); jg.writeStringField("name", listedObject.getName()); jg.writeEndObject(); } jg.writeEndArray(); jg.close(); } catch (IOException e) { throw new RuntimeException(e); } } else if (APPLICATION_XML_UTF_8.is(finalParsedAccept)) { String charset = UTF_8.toString(); XMLStreamWriter writer = null; try { writer = newFactory().createXMLStreamWriter(bufferOutputStream, charset); writer.writeStartDocument(charset, "1.0"); writer.writeStartElement("container"); writer.writeAttribute("name", fromPaths(persistentContainer.getId()).containerName().get()); for (ListedObject listedObject : ordered(objectList.getObjects())) { writer.writeStartElement("object"); writer.writeStartElement("name"); writer.writeCharacters(listedObject.getName()); writer.writeEndElement(); writer.writeStartElement("hash"); writer.writeCharacters( base16().lowerCase().encode(listedObject.getEtag())); writer.writeEndElement(); writer.writeStartElement("bytes"); writer.writeCharacters(valueOf(listedObject.getLength())); writer.writeEndElement(); writer.writeStartElement("content_type"); writer.writeCharacters(listedObject.getContentType()); writer.writeEndElement(); writer.writeStartElement("last_modified"); writer.writeCharacters( toDateTimeString(listedObject.getLastModified())); writer.writeEndElement(); writer.writeEndElement(); } writer.writeEndElement(); writer.writeEndDocument(); } catch (XMLStreamException e) { throw new RuntimeException(e); } finally { try { if (writer != null) { writer.close(); } } catch (XMLStreamException e) { LOGGER.warn(e.getLocalizedMessage(), e); } } } else { String charset = UTF_8.toString(); try (OutputStreamWriter outputStreamWriter = new OutputStreamWriter( bufferOutputStream, charset)) { for (ListedObject listedObject : ordered(objectList.getObjects())) { outputStreamWriter.write(listedObject.getName()); outputStreamWriter.write("\n"); } } catch (IOException e) { throw new RuntimeException(e); } } objectList.clear(); return bufferOutputStream; }).flatMap(bufferOutputStream -> { Buffer buffer = bufferOutputStream.toBuffer(); httpServerResponse.putHeader(HttpHeaders.CONTENT_TYPE, finalParsedAccept.toString()) .putHeader(HttpHeaders.CONTENT_LENGTH, String.valueOf(buffer.length())); return AsyncIO.append(buffer, httpServerRequest.response()); }); }).single().subscribe(new ConnectionCloseTerminus<Void>(httpServerRequest) { @Override public void onNext(Void aVoid) { } } ); }