List of usage examples for com.google.gson.stream JsonToken END_OBJECT
JsonToken END_OBJECT
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From source file:BundleTypeAdapterFactory.java
License:Apache License
@SuppressWarnings("unchecked") @Override//from w w w . j a va 2 s .com public <T> TypeAdapter<T> create(final Gson gson, TypeToken<T> type) { if (!Bundle.class.isAssignableFrom(type.getRawType())) { return null; } return (TypeAdapter<T>) new TypeAdapter<Bundle>() { @Override public void write(JsonWriter out, Bundle bundle) throws IOException { if (bundle == null) { out.nullValue(); return; } out.beginObject(); for (String key : bundle.keySet()) { out.name(key); Object value = bundle.get(key); if (value == null) { out.nullValue(); } else { gson.toJson(value, value.getClass(), out); } } out.endObject(); } @Override public Bundle read(JsonReader in) throws IOException { switch (in.peek()) { case NULL: in.nextNull(); return null; case BEGIN_OBJECT: return toBundle(readObject(in)); default: throw new IOException("expecting object: " + in.getPath()); } } private Bundle toBundle(List<Pair<String, Object>> values) throws IOException { Bundle bundle = new Bundle(); for (Pair<String, Object> entry : values) { String key = entry.first; Object value = entry.second; if (value instanceof String) { bundle.putString(key, (String) value); } else if (value instanceof Integer) { bundle.putInt(key, ((Integer) value).intValue()); } else if (value instanceof Long) { bundle.putLong(key, ((Long) value).longValue()); } else if (value instanceof Double) { bundle.putDouble(key, ((Double) value).doubleValue()); } else if (value instanceof Parcelable) { bundle.putParcelable(key, (Parcelable) value); } else if (value instanceof List) { List<Pair<String, Object>> objectValues = (List<Pair<String, Object>>) value; Bundle subBundle = toBundle(objectValues); bundle.putParcelable(key, subBundle); } else { throw new IOException("Unparcelable key, value: " + key + ", " + value); } } return bundle; } private List<Pair<String, Object>> readObject(JsonReader in) throws IOException { List<Pair<String, Object>> object = new ArrayList<Pair<String, Object>>(); in.beginObject(); while (in.peek() != JsonToken.END_OBJECT) { switch (in.peek()) { case NAME: String name = in.nextName(); Object value = readValue(in); object.add(new Pair<String, Object>(name, value)); break; case END_OBJECT: break; default: throw new IOException("expecting object: " + in.getPath()); } } in.endObject(); return object; } private Object readValue(JsonReader in) throws IOException { switch (in.peek()) { case BEGIN_ARRAY: return readArray(in); case BEGIN_OBJECT: return readObject(in); case BOOLEAN: return in.nextBoolean(); case NULL: in.nextNull(); return null; case NUMBER: return readNumber(in); case STRING: return in.nextString(); default: throw new IOException("expecting value: " + in.getPath()); } } private Object readNumber(JsonReader in) throws IOException { double doubleValue = in.nextDouble(); if (doubleValue - Math.ceil(doubleValue) == 0) { long longValue = (long) doubleValue; if (longValue >= Integer.MIN_VALUE && longValue <= Integer.MAX_VALUE) { return (int) longValue; } return longValue; } return doubleValue; } @SuppressWarnings("rawtypes") private List readArray(JsonReader in) throws IOException { List list = new ArrayList(); in.beginArray(); while (in.peek() != JsonToken.END_ARRAY) { Object element = readValue(in); list.add(element); } in.endArray(); return list; } }; }
From source file:bind.JsonTreeReader.java
License:Apache License
@Override public void endObject() throws IOException { expect(JsonToken.END_OBJECT); popStack(); // empty iterator popStack(); // object }
From source file:bind.JsonTreeReader.java
License:Apache License
@Override public boolean hasNext() throws IOException { JsonToken token = peek();/*from www .j a v a 2s .co m*/ return token != JsonToken.END_OBJECT && token != JsonToken.END_ARRAY; }
From source file:bind.JsonTreeReader.java
License:Apache License
@Override public JsonToken peek() throws IOException { if (stack.isEmpty()) { return JsonToken.END_DOCUMENT; }/*ww w.j a va 2 s . com*/ 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:co.cask.cdap.format.StructuredRecordStringConverter.java
License:Apache License
private static Map<Object, Object> readMap(JsonReader reader, Map.Entry<Schema, Schema> mapSchema) throws IOException { Schema keySchema = mapSchema.getKey(); if (!keySchema.isCompatible(Schema.of(Schema.Type.STRING))) { throw new IOException("Complex key type not supported: " + keySchema); }//from w w w .j a va 2 s .c o m Schema valueSchema = mapSchema.getValue(); Map<Object, Object> result = new HashMap<>(); reader.beginObject(); while (reader.peek() != JsonToken.END_OBJECT) { Object key = convertKey(reader.nextName(), keySchema.getType()); result.put(key, readJson(reader, valueSchema)); } reader.endObject(); return result; }
From source file:co.cask.cdap.format.StructuredRecordStringConverter.java
License:Apache License
private static StructuredRecord readRecord(JsonReader reader, Schema schema) throws IOException { StructuredRecord.Builder builder = StructuredRecord.builder(schema); reader.beginObject();// w ww . j a v a 2 s . com while (reader.peek() != JsonToken.END_OBJECT) { Schema.Field field = schema.getField(reader.nextName()); if (field == null) { // Ignore unrecognized fields reader.skipValue(); continue; } builder.set(field.getName(), readJson(reader, field.getSchema())); } reader.endObject(); return builder.build(); }
From source file:com.android.ide.common.blame.MergingLogPersistUtil.java
License:Apache License
@NonNull static Map<SourceFile, Map<SourcePosition, SourceFilePosition>> loadFromMultiFile(@NonNull File folder, @NonNull String shard) {/* w w w.j ava 2s . co m*/ Map<SourceFile, Map<SourcePosition, SourceFilePosition>> map = Maps.newConcurrentMap(); JsonReader reader; File file = getMultiFile(folder, shard); if (!file.exists()) { return map; } try { reader = new JsonReader(Files.newReader(file, Charsets.UTF_8)); } catch (FileNotFoundException e) { // Shouldn't happen unless it disappears under us. return map; } try { reader.beginArray(); while (reader.peek() != JsonToken.END_ARRAY) { reader.beginObject(); SourceFile toFile = SourceFile.UNKNOWN; Map<SourcePosition, SourceFilePosition> innerMap = Maps.newLinkedHashMap(); while (reader.peek() != JsonToken.END_OBJECT) { final String name = reader.nextName(); if (name.equals(KEY_OUTPUT_FILE)) { toFile = mSourceFileJsonTypeAdapter.read(reader); } else if (name.equals(KEY_MAP)) { reader.beginArray(); while (reader.peek() != JsonToken.END_ARRAY) { reader.beginObject(); SourceFilePosition from = null; SourcePosition to = null; while (reader.peek() != JsonToken.END_OBJECT) { final String innerName = reader.nextName(); if (innerName.equals(KEY_FROM)) { from = mSourceFilePositionJsonTypeAdapter.read(reader); } else if (innerName.equals(KEY_TO)) { to = mSourcePositionJsonTypeAdapter.read(reader); } else { throw new IOException(String.format("Unexpected property: %s", innerName)); } } if (from == null || to == null) { throw new IOException("Each record must contain both from and to."); } innerMap.put(to, from); reader.endObject(); } reader.endArray(); } else { throw new IOException(String.format("Unexpected property: %s", name)); } } map.put(toFile, innerMap); reader.endObject(); } reader.endArray(); return map; } catch (IOException e) { // TODO: trigger a non-incremental merge if this happens. throw new RuntimeException(e); } finally { try { reader.close(); } catch (Throwable e2) { // well, we tried. } } }
From source file:com.android.ide.common.blame.MergingLogPersistUtil.java
License:Apache License
@NonNull static Map<SourceFile, SourceFile> loadFromSingleFile(@NonNull File folder, @NonNull String shard) { Map<SourceFile, SourceFile> fileMap = Maps.newConcurrentMap(); JsonReader reader;//from ww w. j ava 2s . com File file = getSingleFile(folder, shard); if (!file.exists()) { return fileMap; } try { reader = new JsonReader(Files.newReader(file, Charsets.UTF_8)); } catch (FileNotFoundException e) { // Shouldn't happen unless it disappears under us. return fileMap; } try { reader.beginArray(); while (reader.peek() != JsonToken.END_ARRAY) { reader.beginObject(); SourceFile merged = SourceFile.UNKNOWN; SourceFile source = SourceFile.UNKNOWN; while (reader.peek() != JsonToken.END_OBJECT) { String name = reader.nextName(); if (name.equals(KEY_MERGED)) { merged = mSourceFileJsonTypeAdapter.read(reader); } else if (name.equals(KEY_SOURCE)) { source = mSourceFileJsonTypeAdapter.read(reader); } else { throw new IOException(String.format("Unexpected property: %s", name)); } } reader.endObject(); fileMap.put(merged, source); } reader.endArray(); return fileMap; } catch (IOException e) { // TODO: trigger a non-incremental merge if this happens. throw new RuntimeException(e); } finally { try { reader.close(); } catch (Throwable e) { // well, we tried. } } }
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 .ja v a2s. com * * <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 readMessage(JsonReader reader, String tableName, Class<T> clazz, long last_sync_ts) throws IOException, JSONException, Exception { String n = null;//from w ww. j a v a2s .c om int i = 0; while (reader.hasNext()) { JsonToken peek = reader.peek(); String v = null; if (peek == JsonToken.BEGIN_OBJECT) { reader.beginObject(); } else if (peek == JsonToken.NAME) { n = reader.nextName(); } else if (peek == JsonToken.BEGIN_ARRAY) { if (n.equals(tableName)) { i = readJsnArr(reader, tableName, clazz); } else { if (n.equals("params")) { reader.beginArray(); if (reader.hasNext()) { reader.beginObject(); if (reader.hasNext()) { n = reader.nextName(); v = reader.nextString(); } reader.endObject(); } reader.endArray(); } else { reader.skipValue(); } } } else if (peek == JsonToken.END_OBJECT) { reader.endObject(); } else if (peek == JsonToken.END_ARRAY) { reader.endArray(); } else if (peek == JsonToken.STRING) { reader.skipValue(); } else { reader.skipValue(); } } return i; }