Example usage for com.google.gson.stream JsonReader getPath

Introduction

In this page you can find the example usage for com.google.gson.stream JsonReader getPath.

Prototype

public String getPath() 

Source Link

Document

Returns a <a href="http://goessner.net/articles/JsonPath/">JsonPath</a> to the current location in the JSON value.

Usage

From source file:LongDateTypeAdapter.java

License:Apache License

@Override
public Date read(JsonReader in) throws IOException {
    switch (in.peek()) {
    case NULL:/*from ww w . j a v  a 2s.  com*/
        return null;
    case STRING:
        try {
            return new Date(Long.parseLong(in.nextString()));
        } catch (NumberFormatException e) {
            throw new JsonSyntaxException(e);
        }
    default:
        throw new JsonSyntaxException("invalid date" + in.getPath());
    }
}

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From source file:BundleTypeAdapterFactory.java

License:Apache License

@SuppressWarnings("unchecked")
@Override/*from ww  w .  ja  v  a  2s. c o  m*/
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;
        }
    };
}

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From source file:com.gilecode.yagson.types.TypeUtils.java

License:Apache License

private static Type readTypeAdvice(JsonReader in) throws IOException {
    in.beginObject();/*w  w w . ja v  a  2  s.c  om*/
    if (!in.hasNext()) {
        throw new JsonSyntaxException("BEGIN_OBJECT is not expected at path " + in.getPath());
    }
    String name = in.nextName();
    if (!name.equals("@type")) {
        throw new JsonSyntaxException("@type is expected at path " + in.getPath());
    }
    return readTypeAdviceAfterTypeField(in);
}

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From source file:com.gilecode.yagson.types.TypeUtils.java

License:Apache License

private static boolean consumeValueField(JsonReader in) throws IOException {
    if (!in.hasNext()) {
        // no @val means actually null value, e.g. skipped by serialization
        return false;
    }/*from   w  w w .j a v  a 2 s.  c om*/
    String name = in.nextName();
    if (!name.equals("@val")) {
        throw new JsonSyntaxException("Only @type and @val fields are expected at the type advice "
                + "objects at path " + in.getPath());
    }
    return true;
}

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From source file:io.grpc.internal.JsonParser.java

License:Apache License

private static Object parseRecursive(JsonReader jr) throws IOException {
    checkState(jr.hasNext(), "unexpected end of JSON");
    switch (jr.peek()) {
    case BEGIN_ARRAY:
        return parseJsonArray(jr);
    case BEGIN_OBJECT:
        return parseJsonObject(jr);
    case STRING://from ww  w .j a va2s .  c  o m
        return jr.nextString();
    case NUMBER:
        return jr.nextDouble();
    case BOOLEAN:
        return jr.nextBoolean();
    case NULL:
        return parseJsonNull(jr);
    default:
        throw new IllegalStateException("Bad token: " + jr.getPath());
    }
}

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From source file:io.grpc.internal.JsonParser.java

License:Apache License

private static Map<String, ?> parseJsonObject(JsonReader jr) throws IOException {
    jr.beginObject();//from  w  w w  .  j a v  a 2 s  .c om
    Map<String, Object> obj = new LinkedHashMap<>();
    while (jr.hasNext()) {
        String name = jr.nextName();
        Object value = parseRecursive(jr);
        obj.put(name, value);
    }
    checkState(jr.peek() == JsonToken.END_OBJECT, "Bad token: " + jr.getPath());
    jr.endObject();
    return Collections.unmodifiableMap(obj);
}

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From source file:io.grpc.internal.JsonParser.java

License:Apache License

private static List<?> parseJsonArray(JsonReader jr) throws IOException {
    jr.beginArray();//ww w .j  a  v a2s  .  c o  m
    List<Object> array = new ArrayList<>();
    while (jr.hasNext()) {
        Object value = parseRecursive(jr);
        array.add(value);
    }
    checkState(jr.peek() == JsonToken.END_ARRAY, "Bad token: " + jr.getPath());
    jr.endArray();
    return Collections.unmodifiableList(array);
}

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From source file:org.objectpocket.gson.CustomTypeAdapterFactory.java

License:Apache License

@Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {

    TypeAdapter<T> delegate = gson.getDelegateAdapter(this, type);

    // @Entity/*from  www.  j  a v a2s  .  c o  m*/
    if (type.getRawType().getAnnotation(Entity.class) != null) {
        return new TypeAdapter<T>() {

            // SERIALIZE
            public void write(JsonWriter out, T obj) throws IOException {
                if (obj != null) {
                    String id = objectPocket.getIdForObject(obj);
                    // normalize
                    if (!objectPocket.isSerializeAsRoot(obj)) {
                        gson.toJson(new ProxyOut(obj.getClass().getTypeName(), id), ProxyOut.class, out);
                        return;
                    } else {
                        objectPocket.setSerializeAsRoot(obj, false);
                    }
                }
                // default serialization
                delegate.write(out, obj);
            };

            // DESERIALIZE
            @SuppressWarnings("unchecked")
            @Override
            public T read(JsonReader in) throws IOException {
                if (in.getPath().length() > 2) {
                    in.beginObject();
                    in.nextName();
                    StringBuilder sb = new StringBuilder(in.nextString());
                    String id = sb.substring(0, sb.indexOf("@"));
                    in.endObject();
                    T obj = null;
                    try {
                        obj = (T) ReflectionUtil.instantiateDefaultConstructor(type.getRawType());
                    } catch (InstantiationException | IllegalAccessException | ClassNotFoundException
                            | NoSuchMethodException | InvocationTargetException e) {
                        throw new IOException("Could not instantiate class " + type.getRawType().getName()
                                + "\n" + "Might be that the class has no default constructor!", e);
                    }
                    objectPocket.addIdFromReadObject(obj, id);
                    return obj;
                } else {
                    T obj = delegate.read(in);
                    return obj;
                }
            }
        };
    }
    // All other
    else {
        return delegate;
    }
}

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