List of usage examples for com.fasterxml.jackson.core JsonParser readValueAsTree
@SuppressWarnings("unchecked") public <T extends TreeNode> T readValueAsTree() throws IOException, JsonProcessingException
From source file:org.opendaylight.groupbasedpolicy.jsonrpc.JsonRpcDecoder.java
@Override protected void decode(ChannelHandlerContext ctx, ByteBuf buf, List<Object> out) throws Exception { logger.trace("readable bytes {}, records read {}, incomplete record bytes {}", buf.readableBytes(), recordsRead, lastRecordBytes); if (lastRecordBytes == 0) { if (buf.readableBytes() < 4) { return; //wait for more data }/*from w w w . ja v a 2 s . c om*/ skipSpaces(buf); byte[] buff = new byte[4]; buf.getBytes(buf.readerIndex(), buff); ByteSourceJsonBootstrapper strapper = new ByteSourceJsonBootstrapper(jacksonIOContext, buff, 0, 4); JsonEncoding jsonEncoding = strapper.detectEncoding(); if (!JsonEncoding.UTF8.equals(jsonEncoding)) { throw new InvalidEncodingException(jsonEncoding.getJavaName(), "currently only UTF-8 is supported"); } } int i = lastRecordBytes + buf.readerIndex(); for (; i < buf.writerIndex(); i++) { switch (buf.getByte(i)) { case '{': if (!inS) leftCurlies++; break; case '}': if (!inS) rightCurlies++; break; case '"': { if (buf.getByte(i - 1) != '\\') inS = !inS; break; } default: break; } if (leftCurlies != 0 && leftCurlies == rightCurlies && !inS) { ByteBuf slice = buf.readSlice(1 + i - buf.readerIndex()); JsonParser jp = jacksonJsonFactory.createParser(new ByteBufInputStream(slice)); JsonNode root = jp.readValueAsTree(); out.add(root); leftCurlies = rightCurlies = lastRecordBytes = 0; recordsRead++; break; } if (i - buf.readerIndex() >= maxFrameLength) { fail(ctx, i - buf.readerIndex()); } } // end of stream, save the incomplete record index to avoid reexamining the whole on next run if (i >= buf.writerIndex()) { lastRecordBytes = buf.readableBytes(); return; } }
From source file:com.github.fge.jsonpatch.mergepatch.JsonMergePatchDeserializer.java
@Override public JsonMergePatch deserialize(final JsonParser jp, final DeserializationContext ctxt) throws IOException, JsonProcessingException { // FIXME: see comment above jp.setCodec(CODEC);/* ww w . j ava 2 s. c om*/ final JsonNode node = jp.readValueAsTree(); /* * Not an object: the simple case */ if (!node.isObject()) return new NonObjectMergePatch(node); /* * The complicated case... * * We have to build a set of removed members, plus a map of modified * members. */ final Set<String> removedMembers = Sets.newHashSet(); final Map<String, JsonMergePatch> modifiedMembers = Maps.newHashMap(); final Iterator<Map.Entry<String, JsonNode>> iterator = node.fields(); Map.Entry<String, JsonNode> entry; while (iterator.hasNext()) { entry = iterator.next(); if (entry.getValue().isNull()) removedMembers.add(entry.getKey()); else { final JsonMergePatch value = deserialize(entry.getValue().traverse(), ctxt); modifiedMembers.put(entry.getKey(), value); } } return new ObjectMergePatch(removedMembers, modifiedMembers); }
From source file:org.opendaylight.ovsdb.lib.jsonrpc.JsonRpcDecoder.java
@Override protected void decode(ChannelHandlerContext ctx, ByteBuf buf, List<Object> out) throws Exception { logger.trace("readable bytes {}, records read {}, incomplete record bytes {}", buf.readableBytes(), recordsRead, lastRecordBytes); if (lastRecordBytes == 0) { if (buf.readableBytes() < 4) { return; //wait for more data }/*from w ww. ja v a 2s.c om*/ skipSpaces(buf); byte[] buff = new byte[4]; buf.getBytes(buf.readerIndex(), buff); ByteSourceJsonBootstrapper strapper = new ByteSourceJsonBootstrapper(jacksonIOContext, buff, 0, 4); JsonEncoding jsonEncoding = strapper.detectEncoding(); if (!JsonEncoding.UTF8.equals(jsonEncoding)) { throw new InvalidEncodingException(jsonEncoding.getJavaName(), "currently only UTF-8 is supported"); } } int index = lastRecordBytes + buf.readerIndex(); for (; index < buf.writerIndex(); index++) { switch (buf.getByte(index)) { case '{': if (!inS) { leftCurlies++; } break; case '}': if (!inS) { rightCurlies++; } break; case '"': if (buf.getByte(index - 1) != '\\') { inS = !inS; } break; default: break; } if (leftCurlies != 0 && leftCurlies == rightCurlies && !inS) { ByteBuf slice = buf.readSlice(1 + index - buf.readerIndex()); JsonParser jp = jacksonJsonFactory.createParser(new ByteBufInputStream(slice)); JsonNode root = jp.readValueAsTree(); out.add(root); leftCurlies = rightCurlies = lastRecordBytes = 0; recordsRead++; break; } if (index - buf.readerIndex() >= maxFrameLength) { fail(ctx, index - buf.readerIndex()); } } // end of stream, save the incomplete record index to avoid reexamining the whole on next run if (index >= buf.writerIndex()) { lastRecordBytes = buf.readableBytes(); return; } }
From source file:com.unboundid.scim2.common.utils.Parser.java
/** * Read a filter from the reader./*from w w w .j a v a2s . com*/ * * @param reader The reader to read the filter from. * @param isValueFilter Whether to read the filter as a value filter. * @return The parsed filter. * @throws BadRequestException If the filter string could not be parsed. */ private static Filter readFilter(final StringReader reader, final boolean isValueFilter) throws BadRequestException { final Stack<Filter> outputStack = new Stack<Filter>(); final Stack<String> precedenceStack = new Stack<String>(); String token; String previousToken = null; while ((token = readFilterToken(reader, isValueFilter)) != null) { if (token.equals("(") && expectsNewFilter(previousToken)) { precedenceStack.push(token); } else if (token.equalsIgnoreCase(FilterType.NOT.getStringValue()) && expectsNewFilter(previousToken)) { // "not" should be followed by an ( String nextToken = readFilterToken(reader, isValueFilter); if (nextToken == null) { throw BadRequestException.invalidFilter("Unexpected end of filter string"); } if (!nextToken.equals("(")) { final String msg = String.format("Expected '(' at position %d", reader.mark); throw BadRequestException.invalidFilter(msg); } precedenceStack.push(token); } else if (token.equals(")") && !expectsNewFilter(previousToken)) { String operator = closeGrouping(precedenceStack, outputStack, false); if (operator == null) { final String msg = String.format( "No opening parenthesis matching closing " + "parenthesis at position %d", reader.mark); throw BadRequestException.invalidFilter(msg); } if (operator.equalsIgnoreCase(FilterType.NOT.getStringValue())) { // Treat "not" the same as "(" except wrap everything in a not filter. outputStack.push(Filter.not(outputStack.pop())); } } else if (token.equalsIgnoreCase(FilterType.AND.getStringValue()) && !expectsNewFilter(previousToken)) { // and has higher precedence than or. precedenceStack.push(token); } else if (token.equalsIgnoreCase(FilterType.OR.getStringValue()) && !expectsNewFilter(previousToken)) { // pop all the pending ands first before pushing or. LinkedList<Filter> andComponents = new LinkedList<Filter>(); while (!precedenceStack.isEmpty()) { if (precedenceStack.peek().equalsIgnoreCase(FilterType.AND.getStringValue())) { precedenceStack.pop(); andComponents.addFirst(outputStack.pop()); } else { break; } if (!andComponents.isEmpty()) { andComponents.addFirst(outputStack.pop()); outputStack.push(Filter.and(andComponents)); } } precedenceStack.push(token); } else if (token.endsWith("[") && expectsNewFilter(previousToken)) { // This is a complex value filter. final Path filterAttribute; try { filterAttribute = parsePath(token.substring(0, token.length() - 1)); } catch (final BadRequestException e) { Debug.debugException(e); final String msg = String.format("Invalid attribute path at position %d: %s", reader.mark, e.getMessage()); throw BadRequestException.invalidFilter(msg); } if (filterAttribute.isRoot()) { final String msg = String.format("Attribute path expected at position %d", reader.mark); throw BadRequestException.invalidFilter(msg); } outputStack.push(Filter.hasComplexValue(filterAttribute, readFilter(reader, true))); } else if (isValueFilter && token.equals("]") && !expectsNewFilter(previousToken)) { break; } else if (expectsNewFilter(previousToken)) { // This must be an attribute path followed by operator and maybe value. final Path filterAttribute; try { filterAttribute = parsePath(token); } catch (final BadRequestException e) { Debug.debugException(e); final String msg = String.format("Invalid attribute path at position %d: %s", reader.mark, e.getMessage()); throw BadRequestException.invalidFilter(msg); } if (filterAttribute.isRoot()) { final String msg = String.format("Attribute path expected at position %d", reader.mark); throw BadRequestException.invalidFilter(msg); } String op = readFilterToken(reader, isValueFilter); if (op == null) { throw BadRequestException.invalidFilter("Unexpected end of filter string"); } if (op.equalsIgnoreCase(FilterType.PRESENT.getStringValue())) { outputStack.push(Filter.pr(filterAttribute)); } else { ValueNode valueNode; try { // Mark the beginning of the JSON value so we can later reset back // to this position and skip the actual chars that were consumed // by Jackson. The Jackson parser is buffered and reads everything // until the end of string. reader.mark(0); ScimJsonFactory scimJsonFactory = (ScimJsonFactory) JsonUtils.getObjectReader() .getFactory(); JsonParser parser = scimJsonFactory.createScimFilterParser(reader); // The object mapper will return a Java null for JSON null. // Have to distinguish between reading a JSON null and encountering // the end of string. if (parser.getCurrentToken() == null && parser.nextToken() == null) { // End of string. valueNode = null; } else { valueNode = parser.readValueAsTree(); // This is actually a JSON null. Use NullNode. if (valueNode == null) { valueNode = JsonUtils.getJsonNodeFactory().nullNode(); } } // Reset back to the beginning of the JSON value. reader.reset(); // Skip the number of chars consumed by JSON parser. reader.skip(parser.getCurrentLocation().getCharOffset()); } catch (IOException e) { final String msg = String.format("Invalid comparison value at position %d: %s", reader.mark, e.getMessage()); throw BadRequestException.invalidFilter(msg); } if (valueNode == null) { throw BadRequestException.invalidFilter("Unexpected end of filter string"); } if (op.equalsIgnoreCase(FilterType.EQUAL.getStringValue())) { outputStack.push(Filter.eq(filterAttribute, valueNode)); } else if (op.equalsIgnoreCase(FilterType.NOT_EQUAL.getStringValue())) { outputStack.push(Filter.ne(filterAttribute, valueNode)); } else if (op.equalsIgnoreCase(FilterType.CONTAINS.getStringValue())) { outputStack.push(Filter.co(filterAttribute, valueNode)); } else if (op.equalsIgnoreCase(FilterType.STARTS_WITH.getStringValue())) { outputStack.push(Filter.sw(filterAttribute, valueNode)); } else if (op.equalsIgnoreCase(FilterType.ENDS_WITH.getStringValue())) { outputStack.push(Filter.ew(filterAttribute, valueNode)); } else if (op.equalsIgnoreCase(FilterType.GREATER_THAN.getStringValue())) { outputStack.push(Filter.gt(filterAttribute, valueNode)); } else if (op.equalsIgnoreCase(FilterType.GREATER_OR_EQUAL.getStringValue())) { outputStack.push(Filter.ge(filterAttribute, valueNode)); } else if (op.equalsIgnoreCase(FilterType.LESS_THAN.getStringValue())) { outputStack.push(Filter.lt(filterAttribute, valueNode)); } else if (op.equalsIgnoreCase(FilterType.LESS_OR_EQUAL.getStringValue())) { outputStack.push(Filter.le(filterAttribute, valueNode)); } else { final String msg = String.format("Unrecognized attribute operator '%s' at position %d. " + "Expected: eq,ne,co,sw,ew,pr,gt,ge,lt,le", op, reader.mark); throw BadRequestException.invalidFilter(msg); } } } else { final String msg = String.format("Unexpected character '%s' at position %d", token, reader.mark); throw BadRequestException.invalidFilter(msg); } previousToken = token; } closeGrouping(precedenceStack, outputStack, true); if (outputStack.isEmpty()) { throw BadRequestException.invalidFilter("Unexpected end of filter string"); } return outputStack.pop(); }
From source file:com.proofpoint.event.collector.S3Uploader.java
private void verifyFile(File file) throws IOException { SnappyInputStream input = new SnappyInputStream(new FileInputStream(file)); JsonParser parser = new ObjectMapper().getFactory().createParser(input); try {/*w ww .j a v a 2 s .co m*/ while (parser.readValueAsTree() != null) { // ignore contents } } finally { parser.close(); } }
From source file:com.strategicgains.hyperexpress.serialization.siren.jackson.SirenResourceDeserializer.java
@Override public SirenResource deserialize(JsonParser jp, DeserializationContext context) throws IOException, JsonProcessingException { ObjectCodec oc = jp.getCodec();//from ww w . j a v a 2 s . c om return deserializeResource((JsonNode) jp.readValueAsTree(), oc); }
From source file:com.strategicgains.hyperexpress.serialization.jackson.HalResourceDeserializer.java
@Override public HalResource deserialize(JsonParser jp, DeserializationContext context) throws IOException, JsonProcessingException { ObjectCodec oc = jp.getCodec();// w w w. j a va2 s. c o m return deserializeResource((JsonNode) jp.readValueAsTree(), oc); }
From source file:com.brainlounge.zooterrain.netty.WebSocketServerInboundHandler.java
private void handleWebSocketFrame(ChannelHandlerContext ctx, WebSocketFrame frame) { // Check for closing frame if (frame instanceof CloseWebSocketFrame) { handshaker.close(ctx.channel(), (CloseWebSocketFrame) frame.retain()); return;//from ww w. j av a 2s . c om } if (frame instanceof PingWebSocketFrame) { ctx.channel().write(new PongWebSocketFrame(frame.content().retain())); return; } if (!(frame instanceof TextWebSocketFrame)) { throw new UnsupportedOperationException( String.format("%s frame types not supported", frame.getClass().getName())); } String request = ((TextWebSocketFrame) frame).text(); if (logger.isLoggable(Level.FINE)) { logger.fine(String.format("%s received %s", ctx.channel(), request)); } // expecting JSON, parse now TreeNode jsonRequest; ClientRequest.Type requestType; try { final JsonParser parser = jsonMapper.getFactory().createParser(request); jsonRequest = parser.readValueAsTree(); TextNode type = (TextNode) jsonRequest.get("r"); requestType = ClientRequest.Type.valueOf(type.textValue()); } catch (Exception e) { logger.info("parsing JSON failed for '" + request + "'"); // TODO return error to client return; } if (requestType == ClientRequest.Type.i) { // client requested initial data // sending connection string info final ControlMessage handshakeInfo = new ControlMessage(zkStateObserver.getZkConnection(), ControlMessage.Type.H); writeClientMessage(ctx, handshakeInfo); // sending initial znodes try { zkStateObserver.initialTree("/", 6, Sets.<ZkStateListener>newHashSet(new OutboundConnector(ctx))); } catch (InterruptedException e) { e.printStackTrace(); } } else if (requestType == ClientRequest.Type.b) { final String znode; try { znode = ((TextNode) jsonRequest.get("z")).textValue(); } catch (Exception e) { return; // TODO return error } final DataMessage dataMessage = zkStateObserver.retrieveNodeData(znode); if (dataMessage != null) { writeClientMessage(ctx, dataMessage); } } else { System.out.println("unknown, unhandled client request = " + request); } }
From source file:com.anrisoftware.simplerest.oanda.rest.AbstractInstrumentHistory.java
private Collection<T> parseResponseList0(ObjectMapper mapper, JsonParser parser) throws IOException, JsonParseException, JsonMappingException { TreeNode tree = parser.readValueAsTree(); TreeNode candlesNode = tree.get(CANDLES_NAME); int size = candlesNode.size(); TreeNode node;/* ww w.j a v a 2 s . co m*/ for (int i = 0; i < size; i++) { node = candlesNode.get(i); T obj = mapper.readValue(node.traverse(), candleType); log.parsedInstrumentHistory(obj); container.add(obj); } return container; }
From source file:com.trenurbanoapp.webapi.WebApiRestClient.java
public AssetsResponse assets() { HttpClient httpClient = getHttpClient(); HttpGet httpGet = new HttpGet(urlbase + "/asset"); getRequestCallback().doWithRequest(httpGet); try {/*from w w w . j av a 2 s .co m*/ return httpClient.execute(httpGet, response -> { int status = response.getStatusLine().getStatusCode(); if (!(status >= 200 && status < 300)) { return new AssetsResponse(status, response.getStatusLine().getReasonPhrase()); } List<Asset> assets = new ArrayList<>(); final JsonFactory jsonFactory = getObjectMapper().getFactory(); final JsonParser parser = jsonFactory.createParser(response.getEntity().getContent()); JsonToken token; while ((token = parser.nextToken()) != null) { switch (token) { case START_OBJECT: JsonNode node = parser.readValueAsTree(); Asset asset = createAsset(node); assets.add(asset); break; } } return new AssetsResponse(assets); }); } catch (IOException e) { throw new RuntimeException(e); } }