List of usage examples for com.google.gson.stream JsonToken NUMBER
JsonToken NUMBER
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From source file:bind.JsonTreeReader.java
License:Apache License
@Override public JsonToken peek() throws IOException { if (stack.isEmpty()) { return JsonToken.END_DOCUMENT; }//from w w w .jav a 2 s . c o m Object o = peekStack(); if (o instanceof Iterator) { Object secondToTop = stack.get(stack.size() - 2); boolean isObject = secondToTop instanceof JsonElement && ((JsonElement) secondToTop).isJsonObject(); Iterator<?> iterator = (Iterator<?>) o; if (iterator.hasNext()) { if (isObject) { return JsonToken.NAME; } else { stack.add(iterator.next()); return peek(); } } else { return isObject ? JsonToken.END_OBJECT : JsonToken.END_ARRAY; } } else if (o instanceof JsonElement) { JsonElement el = (JsonElement) o; if (el.isJsonObject()) { return JsonToken.BEGIN_OBJECT; } else if (el.isJsonArray()) { return JsonToken.BEGIN_ARRAY; } else if (el.isJsonPrimitive()) { JsonPrimitive primitive = (JsonPrimitive) o; if (primitive.isString()) { return JsonToken.STRING; } else if (primitive.isBoolean()) { return JsonToken.BOOLEAN; } else if (primitive.isNumber()) { return JsonToken.NUMBER; } else { throw new AssertionError(); } } else if (el.isJsonNull()) { return JsonToken.NULL; } throw new AssertionError(); } else if (o == SENTINEL_CLOSED) { throw new IllegalStateException("JsonReader is closed"); } else { throw new AssertionError(); } }
From source file:bind.JsonTreeReader.java
License:Apache License
@Override public String nextString() throws IOException { JsonToken token = peek();//from w w w . ja va 2s. co m if (token != JsonToken.STRING && token != JsonToken.NUMBER) { throw new IllegalStateException("Expected " + JsonToken.STRING + " but was " + token); } return ((JsonPrimitive) popStack()).getAsString(); }
From source file:bind.JsonTreeReader.java
License:Apache License
@Override public double nextDouble() throws IOException { JsonToken token = peek();/* ww w. ja v a2 s . c o m*/ if (token != JsonToken.NUMBER && token != JsonToken.STRING) { throw new IllegalStateException("Expected " + JsonToken.NUMBER + " but was " + token); } double result = ((JsonPrimitive) peekStack()).getAsDouble(); if (!isLenient() && (Double.isNaN(result) || Double.isInfinite(result))) { throw new NumberFormatException("JSON forbids NaN and infinities: " + result); } popStack(); return result; }
From source file:bind.JsonTreeReader.java
License:Apache License
@Override public long nextLong() throws IOException { JsonToken token = peek();//from ww w . j a v a 2s.c o m if (token != JsonToken.NUMBER && token != JsonToken.STRING) { throw new IllegalStateException("Expected " + JsonToken.NUMBER + " but was " + token); } long result = ((JsonPrimitive) peekStack()).getAsLong(); popStack(); return result; }
From source file:bind.JsonTreeReader.java
License:Apache License
@Override public int nextInt() throws IOException { JsonToken token = peek();//from w w w. j a va 2 s. c o m if (token != JsonToken.NUMBER && token != JsonToken.STRING) { throw new IllegalStateException("Expected " + JsonToken.NUMBER + " but was " + token); } int result = ((JsonPrimitive) peekStack()).getAsInt(); popStack(); return result; }
From source file:com.cinchapi.concourse.util.Convert.java
License:Apache License
/** * Convert the next JSON object in the {@code reader} to a mapping that * associates each key with the Java objects that represent the * corresponding values./*from w w w. j a v a2s . c o m*/ * * <p> * This method has the same rules and limitations as * {@link #jsonToJava(String)}. It simply uses a {@link JsonReader} to * handle reading an array of objects. * </p> * <p> * <strong>This method DOES NOT {@link JsonReader#close()} the * {@code reader}.</strong> * </p> * * @param reader the {@link JsonReader} that contains a stream of JSON * @return the JSON data in the form of a {@link Multimap} from keys to * values */ private static Multimap<String, Object> jsonToJava(JsonReader reader) { Multimap<String, Object> data = HashMultimap.create(); try { reader.beginObject(); JsonToken peek0; while ((peek0 = reader.peek()) != JsonToken.END_OBJECT) { String key = reader.nextName(); peek0 = reader.peek(); if (peek0 == JsonToken.BEGIN_ARRAY) { // If we have an array, add the elements individually. If // there are any duplicates in the array, they will be // filtered out by virtue of the fact that a HashMultimap // does not store dupes. reader.beginArray(); JsonToken peek = reader.peek(); do { Object value; if (peek == JsonToken.BOOLEAN) { value = reader.nextBoolean(); } else if (peek == JsonToken.NUMBER) { value = stringToJava(reader.nextString()); } else if (peek == JsonToken.STRING) { String orig = reader.nextString(); value = stringToJava(orig); if (orig.isEmpty()) { value = orig; } // If the token looks like a string, it MUST be // converted to a Java string unless it is a // masquerading double or an instance of Thrift // translatable class that has a special string // representation (i.e. Tag, Link) else if (orig.charAt(orig.length() - 1) != 'D' && !CLASSES_WITH_ENCODED_STRING_REPR.contains(value.getClass())) { value = value.toString(); } } else if (peek == JsonToken.NULL) { reader.skipValue(); continue; } else { throw new JsonParseException("Cannot parse nested object or array within an array"); } data.put(key, value); } while ((peek = reader.peek()) != JsonToken.END_ARRAY); reader.endArray(); } else { Object value; if (peek0 == JsonToken.BOOLEAN) { value = reader.nextBoolean(); } else if (peek0 == JsonToken.NUMBER) { value = stringToJava(reader.nextString()); } else if (peek0 == JsonToken.STRING) { String orig = reader.nextString(); value = stringToJava(orig); if (orig.isEmpty()) { value = orig; } // If the token looks like a string, it MUST be // converted to a Java string unless it is a // masquerading double or an instance of Thrift // translatable class that has a special string // representation (i.e. Tag, Link) else if (orig.charAt(orig.length() - 1) != 'D' && !CLASSES_WITH_ENCODED_STRING_REPR.contains(value.getClass())) { value = value.toString(); } } else if (peek0 == JsonToken.NULL) { reader.skipValue(); continue; } else { throw new JsonParseException("Cannot parse nested object to value"); } data.put(key, value); } } reader.endObject(); return data; } catch (IOException | IllegalStateException e) { throw new JsonParseException(e.getMessage()); } }
From source file:com.flowzr.budget.holo.export.flowzr.FlowzrSyncEngine.java
License:Open Source License
public static <T> int readJsnArr(JsonReader reader, String tableName, Class<T> clazz) throws IOException, JSONException, Exception { JSONObject o = new JSONObject(); JsonToken peek = reader.peek();/* www. jav a2s . c o m*/ String n = null; reader.beginArray(); int j = 0; int i = 0; while (reader.hasNext()) { peek = reader.peek(); if (reader.peek() == JsonToken.BEGIN_OBJECT) { reader.beginObject(); } else if (reader.peek() == JsonToken.END_OBJECT) { reader.endObject(); } o = new JSONObject(); while (reader.hasNext()) { peek = reader.peek(); if (peek == JsonToken.NAME) { n = reader.nextName(); } else if (peek == JsonToken.BEGIN_OBJECT) { reader.beginObject(); } else if (peek == JsonToken.END_OBJECT) { reader.endObject(); } else if (peek == JsonToken.BOOLEAN) { try { o.put(n, reader.nextBoolean()); } catch (JSONException e) { e.printStackTrace(); } } else if (peek == JsonToken.STRING) { try { o.put(n, reader.nextString()); } catch (JSONException e) { e.printStackTrace(); } } else if (peek == JsonToken.NUMBER) { try { o.put(n, reader.nextDouble()); } catch (JSONException e) { e.printStackTrace(); } } } reader.endObject(); if (o.has("key")) { i = i + 1; j = j + 1; if (j % 100 == 0) { j = 2; } saveEntityFromJson(o, tableName, clazz, i); if (i % 10 == 0) { //notifyUser(context.getString(R.string.flowzr_sync_receiving) + " " + tableName + ". " + context.getString(R.string.hint_run_background), (int)(Math.round(j))); } } } reader.endArray(); return i; }
From source file:com.gd.misc.test.JsonReader.java
License:Apache License
/** * Returns the type of the next token without consuming it. *///from www . jav a 2 s .com public JsonToken peek() throws IOException { int p = peeked; if (p == PEEKED_NONE) { p = doPeek(); } switch (p) { case PEEKED_BEGIN_OBJECT: return JsonToken.BEGIN_OBJECT; case PEEKED_END_OBJECT: return JsonToken.END_OBJECT; case PEEKED_BEGIN_ARRAY: return JsonToken.BEGIN_ARRAY; case PEEKED_END_ARRAY: return JsonToken.END_ARRAY; case PEEKED_SINGLE_QUOTED_NAME: case PEEKED_DOUBLE_QUOTED_NAME: case PEEKED_UNQUOTED_NAME: return JsonToken.NAME; case PEEKED_TRUE: case PEEKED_FALSE: return JsonToken.BOOLEAN; case PEEKED_NULL: return JsonToken.NULL; case PEEKED_SINGLE_QUOTED: case PEEKED_DOUBLE_QUOTED: case PEEKED_UNQUOTED: case PEEKED_BUFFERED: return JsonToken.STRING; case PEEKED_LONG: case PEEKED_NUMBER: return JsonToken.NUMBER; case PEEKED_EOF: return JsonToken.END_DOCUMENT; default: throw new AssertionError(); } }
From source file:com.getperka.flatpack.Unpacker.java
License:Apache License
private <T> FlatPackEntity<T> unpack(Type returnType, JsonReader reader, Principal principal) throws IOException { // Hold temporary state for deserialization DeserializationContext context = contexts.get(); /*/* w w w . jav a2s . com*/ * Decoding is done as a two-pass operation since the runtime type of an allocated object cannot * be swizzled. The per-entity data is held as a semi-reified JsonObject to be passed off to a * Codex. */ Map<HasUuid, JsonObject> entityData = FlatPackCollections.mapForIteration(); // Used to populate the entityData map JsonParser jsonParser = new JsonParser(); /* * The reader is placed in lenient mode as an aid to developers, however all output will be * strictly formatted. */ reader.setLenient(true); // The return value @SuppressWarnings("unchecked") FlatPackEntity<T> toReturn = (FlatPackEntity<T>) FlatPackEntity.create(returnType, null, principal); // Stores the single, top-level value in the payload for two-pass reification JsonElement value = null; if (reader.peek().equals(JsonToken.NULL)) { return toReturn; } reader.beginObject(); while (JsonToken.NAME.equals(reader.peek())) { String name = reader.nextName(); if ("data".equals(name)) { // data : { "fooEntity" : [ { ... }, { ... } ] reader.beginObject(); while (JsonToken.NAME.equals(reader.peek())) { // Turn "fooEntity" into the actual FooEntity class String simpleName = reader.nextName(); Class<? extends HasUuid> clazz = typeContext.getClass(simpleName); if (clazz == null) { if (ignoreUnresolvableTypes) { reader.skipValue(); continue; } else { throw new UnsupportedOperationException("Cannot resolve type " + simpleName); } } else if (Modifier.isAbstract(clazz.getModifiers())) { throw new UnsupportedOperationException( "A subclass of " + simpleName + " must be used instead"); } context.pushPath("allocating " + simpleName); try { // Find the Codex for the requested entity type EntityCodex<?> codex = (EntityCodex<?>) typeContext.getCodex(clazz); // Take the n-many property objects and stash them for later decoding reader.beginArray(); while (!JsonToken.END_ARRAY.equals(reader.peek())) { JsonObject chunk = jsonParser.parse(reader).getAsJsonObject(); HasUuid entity = codex.allocate(chunk, context); toReturn.addExtraEntity(entity); entityData.put(entity, chunk.getAsJsonObject()); } reader.endArray(); } finally { context.popPath(); } } reader.endObject(); } else if ("errors".equals(name)) { // "errors" : { "path" : "problem", "path2" : "problem2" } reader.beginObject(); while (JsonToken.NAME.equals(reader.peek())) { String path = reader.nextName(); if (JsonToken.STRING.equals(reader.peek()) || JsonToken.NUMBER.equals(reader.peek())) { toReturn.addError(path, reader.nextString()); } else { reader.skipValue(); } } reader.endObject(); } else if ("metadata".equals(name)) { reader.beginArray(); while (!JsonToken.END_ARRAY.equals(reader.peek())) { EntityMetadata meta = new EntityMetadata(); JsonObject metaElement = jsonParser.parse(reader).getAsJsonObject(); metaCodex.get().readProperties(meta, metaElement, context); toReturn.addMetadata(meta); } reader.endArray(); } else if ("value".equals(name)) { // Just stash the value element in case it occurs first value = jsonParser.parse(reader); } else if (JsonToken.STRING.equals(reader.peek()) || JsonToken.NUMBER.equals(reader.peek())) { // Save off any other simple properties toReturn.putExtraData(name, reader.nextString()); } else { // Ignore random other entries reader.skipValue(); } } reader.endObject(); reader.close(); for (Map.Entry<HasUuid, JsonObject> entry : entityData.entrySet()) { HasUuid entity = entry.getKey(); EntityCodex<HasUuid> codex = (EntityCodex<HasUuid>) typeContext.getCodex(entity.getClass()); codex.readProperties(entity, entry.getValue(), context); } @SuppressWarnings("unchecked") Codex<T> returnCodex = (Codex<T>) typeContext.getCodex(toReturn.getType()); toReturn.withValue(returnCodex.read(value, context)); for (Map.Entry<UUID, String> entry : context.getWarnings().entrySet()) { toReturn.addWarning(entry.getKey().toString(), entry.getValue()); } // Process metadata for (EntityMetadata meta : toReturn.getMetadata()) { if (meta.isPersistent()) { HasUuid entity = context.getEntity(meta.getUuid()); if (entity instanceof PersistenceAware) { ((PersistenceAware) entity).markPersistent(); } } } context.runPostWork(); context.close(); return toReturn; }
From source file:com.github.filosganga.geogson.gson.PositionsAdapter.java
License:Apache License
private Positions parsePositions(JsonReader in) throws IOException { Optional<Positions> parsed = Optional.absent(); if (in.peek() != JsonToken.BEGIN_ARRAY) { throw new IllegalArgumentException("The given json is not a valid positions"); }/*from w w w .ja va2 s . c o m*/ in.beginArray(); if (in.peek() == JsonToken.NUMBER) { parsed = Optional.of(parseSinglePosition(in)); } else if (in.peek() == JsonToken.BEGIN_ARRAY) { while (in.hasNext()) { Positions thisPositions = parsePositions(in); // fix bug #30: according to the recursion (i.e. the array structure; // recognize that we came from a recursion because no parsed has no // value yet): convert the already parsed Positions to the // LinearPositions/AreaPositions matching the recursion level if (parsed.equals(Optional.absent()) && thisPositions instanceof LinearPositions) { AreaPositions areaPositions = new AreaPositions( ImmutableList.of((LinearPositions) thisPositions)); parsed = Optional.of((Positions) areaPositions); } else if (parsed.equals(Optional.absent()) && thisPositions instanceof AreaPositions) { MultiDimensionalPositions multiPositions = new MultiDimensionalPositions( ImmutableList.of((AreaPositions) thisPositions)); parsed = Optional.of((Positions) multiPositions); } else { // mergeFn() does all the rest, if parsed has a value parsed = parsed.transform(mergeFn(thisPositions)).or(Optional.of(thisPositions)); } } } in.endArray(); return parsed.orNull(); }