Example usage for com.google.gson.internal JsonReaderInternalAccess INSTANCE

Introduction

In this page you can find the example usage for com.google.gson.internal JsonReaderInternalAccess INSTANCE.

Prototype

JsonReaderInternalAccess INSTANCE

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Usage

From source file:org.eclipse.smarthome.storage.json.PropertiesTypeAdapter.java

License:Open Source License

@Override
public Map<String, Object> read(JsonReader in) throws IOException {
    // gson implementation code is modified when deserializing numbers
    JsonToken peek = in.peek();//  w w w.j  a v  a2 s  . c o  m
    if (peek == JsonToken.NULL) {
        in.nextNull();
        return null;
    }

    Map<String, Object> map = constructor.get(TOKEN).construct();

    if (peek == JsonToken.BEGIN_ARRAY) {
        in.beginArray();
        while (in.hasNext()) {
            in.beginArray(); // entry array
            String key = keyAdapter.read(in);

            // modification
            Object value = getValue(in);

            Object replaced = map.put(key, value);
            if (replaced != null) {
                throw new JsonSyntaxException("duplicate key: " + key);
            }
            in.endArray();
        }
        in.endArray();
    } else {
        in.beginObject();
        while (in.hasNext()) {
            JsonReaderInternalAccess.INSTANCE.promoteNameToValue(in);
            String key = keyAdapter.read(in);

            // modification
            Object value = getValue(in);

            Object replaced = map.put(key, value);
            if (replaced != null) {
                throw new JsonSyntaxException("duplicate key: " + key);
            }
        }
        in.endObject();
    }
    return map;
}

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From source file:org.jclouds.json.internal.IgnoreNullMapTypeAdapterFactory.java

License:Apache License

private <K, V> TypeAdapter<Map<K, V>> newMapAdapter(final TypeAdapter<K> keyAdapter,
        final TypeAdapter<V> valueAdapter) {
    return new TypeAdapter<Map<K, V>>() {
        public void write(JsonWriter out, Map<K, V> value) throws IOException {
            out.beginObject();/*from w w w .ja  v a  2  s.c  o  m*/
            for (Map.Entry<K, V> element : value.entrySet()) {
                out.name(String.valueOf(element.getKey()));
                valueAdapter.write(out, element.getValue());
            }
            out.endObject();
        }

        public Map<K, V> read(JsonReader in) throws IOException {
            Map<K, V> result = Maps.newLinkedHashMap();
            in.beginObject();
            while (in.hasNext()) {
                JsonReaderInternalAccess.INSTANCE.promoteNameToValue(in);
                K name = keyAdapter.read(in);
                V value = valueAdapter.read(in);
                if (value != null)
                    result.put(name, value);
            }
            in.endObject();
            return result;
        }
    }.nullSafe();
}

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From source file:org.jclouds.json.internal.IgnoreNullMultimapTypeAdapterFactory.java

License:Apache License

private <K, V> TypeAdapter<Multimap<K, V>> newMapAdapter(final TypeAdapter<K> keyAdapter,
        final TypeAdapter<V> valueAdapter) {
    return new TypeAdapter<Multimap<K, V>>() {
        public void write(JsonWriter out, Multimap<K, V> map) throws IOException {
            out.beginObject();//from  www  . j av  a  2 s .co m
            for (K key : map.keySet()) {
                out.name(String.valueOf(key));
                out.beginArray();
                for (V value : map.get(key)) {
                    valueAdapter.write(out, value);
                }
                out.endArray();
            }
            out.endObject();
        }

        public Multimap<K, V> read(JsonReader in) throws IOException {
            ImmutableMultimap.Builder<K, V> result = ImmutableListMultimap.builder();
            in.beginObject();
            while (in.hasNext()) {
                JsonReaderInternalAccess.INSTANCE.promoteNameToValue(in);
                K name = keyAdapter.read(in);
                in.beginArray();
                while (in.hasNext()) {
                    V value = valueAdapter.read(in);
                    if (value != null)
                        result.put(name, value);
                }
                in.endArray();
            }
            in.endObject();
            return result.build();
        }
    }.nullSafe();
}

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