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

Introduction

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

Prototype

public void nextNull() throws IOException 

Source Link

Document

Consumes the next token from the JSON stream and asserts that it is a literal null.

Usage

From source file:com.google.maps.internal.LocalTimeAdapter.java

License:Open Source License

/**
 * Read a time from the Places API and convert to a {@link LocalTime}
 *///w ww  . j  ava2s.  co  m
@Override
public LocalTime read(JsonReader reader) throws IOException {
    if (reader.peek() == JsonToken.NULL) {
        reader.nextNull();
        return null;
    }

    if (reader.peek() == JsonToken.STRING) {
        DateTimeFormatter dtf = DateTimeFormat.forPattern("HHmm");
        return LocalTime.parse(reader.nextString(), dtf);
    }

    throw new UnsupportedOperationException("Unsupported format");
}

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From source file:com.google.maps.internal.PriceLevelAdapter.java

License:Open Source License

@Override
public PriceLevel read(JsonReader reader) throws IOException {
    if (reader.peek() == JsonToken.NULL) {
        reader.nextNull();
        return null;
    }//from  w  w w  .  j  av  a 2s.  c  o  m

    if (reader.peek() == JsonToken.NUMBER) {
        int priceLevel = reader.nextInt();

        switch (priceLevel) {
        case 0:
            return PriceLevel.FREE;
        case 1:
            return PriceLevel.INEXPENSIVE;
        case 2:
            return PriceLevel.MODERATE;
        case 3:
            return PriceLevel.EXPENSIVE;
        case 4:
            return PriceLevel.VERY_EXPENSIVE;
        }
    }

    return PriceLevel.UNKNOWN;
}

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From source file:com.google.maps.internal.SafeEnumAdapter.java

License:Open Source License

@Override
public E read(JsonReader reader) throws IOException {
    if (reader.peek() == JsonToken.NULL) {
        reader.nextNull();
        return null;
    }// w w  w .  jav a  2  s .  c o m
    String value = reader.nextString();
    try {
        return Enum.valueOf(clazz, value.toUpperCase(Locale.ENGLISH));
    } catch (IllegalArgumentException iae) {
        log.warning(String.format("Unknown type for enum %s: '%s'", clazz.getName(), value));
        return unknownValue;
    }
}

---

From source file:com.google.maps.internal.TravelModeAdapter.java

License:Open Source License

/**
 * Read a travel mode from a Directions API result and convert it to a {@link TravelMode}.
 *///w  w w.j a  v a2  s.c o m
@Override
public TravelMode read(JsonReader reader) throws IOException {
    if (reader.peek() == JsonToken.NULL) {
        reader.nextNull();
        return null;
    }

    return TravelMode.lookup(reader.nextString());
}

---

From source file:com.greensopinion.finance.services.persistence.DateTypeAdapter.java

License:Apache License

@Override
public Date read(JsonReader reader) throws IOException {
    if (reader.peek().equals(JsonToken.NULL)) {
        reader.nextNull();
        return null;
    }// w  w w.  j  av  a 2  s .  c o m
    String value = reader.nextString();
    try {
        return dateFormat().parse(value);
    } catch (ParseException e) {
        throw new IOException(format("Expected a date but got \"{0}\"", value));
    }
}

---

From source file:com.gs.reladomo.serial.gson.GsonWrappedListTypedAdapter.java

License:Apache License

@Override
public SerializedList<U, T> read(JsonReader jsonReader) throws IOException {
    ReladomoDeserializer deserializer;//from  w  w w  . java2s  .c o  m
    if (this.typeClass == null) {
        deserializer = new ReladomoDeserializer();
    } else {
        deserializer = new ReladomoDeserializer(typeClass);
    }
    deserializer.setIgnoreUnknown();
    JsonDeserializerState state = JsonDeserializerState.ListStartState.INSTANCE;
    while (true) {
        JsonToken nextToken = jsonReader.peek();
        //BEGIN_ARRAY, END_ARRAY, BEGIN_OBJECT, END_OBJECT, NAME, STRING, NUMBER, BOOLEAN, NULL, END_DOCUMENT;
        if (JsonToken.BEGIN_OBJECT == nextToken) {
            jsonReader.beginObject();
            state = state.startObject(deserializer);
        } else if (JsonToken.END_OBJECT == nextToken) {
            jsonReader.endObject();
            state = state.endObject(deserializer);
        } else if (JsonToken.BEGIN_ARRAY == nextToken) {
            jsonReader.beginArray();
            state = state.startArray(deserializer);
        } else if (JsonToken.END_ARRAY == nextToken) {
            jsonReader.endArray();
            state = state.endArray(deserializer);
        } else if (JsonToken.BOOLEAN == nextToken) {
            if (jsonReader.nextBoolean()) {
                state = state.valueTrue(deserializer);
            } else {
                state = state.valueFalse(deserializer);
            }
        } else if (JsonToken.NAME == nextToken) {
            String name = jsonReader.nextName();
            state = state.fieldName(name, deserializer);
        } else if (JsonToken.NUMBER == nextToken) {
            String value = jsonReader.nextString();
            state = state.valueString(value, deserializer); // we do the parsing to avoid precision loss
        } else if (JsonToken.STRING == nextToken) {
            String value = jsonReader.nextString();
            Attribute attribute = deserializer.getCurrentAttribute();
            if (attribute instanceof TimestampAttribute) {
                Timestamp timestamp = GsonReladomoTypeAdapterSerialWriter.jsonToTimestamp(value);
                state = state.valueTimestamp(timestamp, deserializer);
            } else {
                state = state.valueString(value, deserializer);
            }
        } else if (JsonToken.NULL == nextToken) {
            jsonReader.nextNull();
            state = state.valueNull(deserializer);
        } else if (JsonToken.END_DOCUMENT == nextToken) {
            break;
        }
    }
    return deserializer.getDeserializedResultAsList();
}

---

From source file:com.gs.reladomo.serial.gson.GsonWrappedTypedAdapter.java

License:Apache License

@Override
public Serialized<T> read(JsonReader jsonReader) throws IOException {
    ReladomoDeserializer deserializer;/*  w  w  w . j av a 2 s . c o m*/
    if (this.typeClass == null) {
        deserializer = new ReladomoDeserializer();
    } else {
        deserializer = new ReladomoDeserializer(typeClass);
    }
    deserializer.setIgnoreUnknown();
    JsonDeserializerState state = JsonDeserializerState.NormalParserState.INSTANCE;
    while (true) {
        JsonToken nextToken = jsonReader.peek();
        //BEGIN_ARRAY, END_ARRAY, BEGIN_OBJECT, END_OBJECT, NAME, STRING, NUMBER, BOOLEAN, NULL, END_DOCUMENT;
        if (JsonToken.BEGIN_OBJECT == nextToken) {
            jsonReader.beginObject();
            state = state.startObject(deserializer);
        } else if (JsonToken.END_OBJECT == nextToken) {
            jsonReader.endObject();
            state = state.endObject(deserializer);
        } else if (JsonToken.BEGIN_ARRAY == nextToken) {
            jsonReader.beginArray();
            state = state.startArray(deserializer);
        } else if (JsonToken.END_ARRAY == nextToken) {
            jsonReader.endArray();
            state = state.endArray(deserializer);
        } else if (JsonToken.BOOLEAN == nextToken) {
            if (jsonReader.nextBoolean()) {
                state = state.valueTrue(deserializer);
            } else {
                state = state.valueFalse(deserializer);
            }
        } else if (JsonToken.NAME == nextToken) {
            String name = jsonReader.nextName();
            state = state.fieldName(name, deserializer);
        } else if (JsonToken.NUMBER == nextToken) {
            String value = jsonReader.nextString();
            state = state.valueString(value, deserializer); // we do the parsing to avoid precision loss
        } else if (JsonToken.STRING == nextToken) {
            String value = jsonReader.nextString();
            Attribute attribute = deserializer.getCurrentAttribute();
            if (attribute instanceof TimestampAttribute) {
                Timestamp timestamp = GsonReladomoTypeAdapterSerialWriter.jsonToTimestamp(value);
                state = state.valueTimestamp(timestamp, deserializer);
            } else {
                state = state.valueString(value, deserializer);
            }
        } else if (JsonToken.NULL == nextToken) {
            jsonReader.nextNull();
            state = state.valueNull(deserializer);
        } else if (JsonToken.END_DOCUMENT == nextToken) {
            break;
        }
    }
    return deserializer.getDeserializedResult();
}

---

From source file:com.ibm.watson.developer_cloud.alchemy.v1.util.ImageKeywordTypeAdapter.java

License:Open Source License

@Override
public ImageKeyword read(JsonReader reader) throws IOException {
    if (reader.peek() == JsonToken.NULL) {
        reader.nextNull();
        return null;
    }/*from  w  w w. j  a  v  a2 s  . co m*/

    final ImageKeyword ImageKeyword = new ImageKeyword();
    reader.beginObject();
    while (reader.hasNext()) {
        final String name = reader.nextName();

        if (name.equals("text")) {
            final String text = reader.nextString();
            ImageKeyword.setText(text);
        } else if (name.equals("score")) {
            final String score = reader.nextString();
            if (score != null && !score.isEmpty())
                ImageKeyword.setScore(Double.valueOf(score));
        } else {
            reader.skipValue();
        }
    }
    reader.endObject();
    return ImageKeyword;
}

---

From source file:com.ibm.watson.developer_cloud.alchemy.v1.util.PublicationDateTypeAdapter.java

License:Open Source License

@Override
public PublicationDate read(JsonReader reader) throws IOException {
    if (reader.peek() == JsonToken.NULL) {
        reader.nextNull();
        return null;
    }//from w w  w.  j  a v a2s.  co m

    final PublicationDate publicationDate = new PublicationDate();
    publicationDate.setConfident(true);
    reader.beginObject();
    while (reader.hasNext()) {
        final String name = reader.nextName();

        if (name.equals("confident")) {
            final String confidentAsString = reader.nextString();
            publicationDate.setConfident(confidentAsString == null || !confidentAsString.equals("no"));
        } else if (name.equals("date")) {
            final String dateAsString = reader.nextString();
            if (dateAsString != null && !dateAsString.isEmpty())
                try {
                    publicationDate.setDate(df.parse(dateAsString));
                } catch (final ParseException e) {
                    log.log(Level.SEVERE, "Error parsing: " + dateAsString, e);
                }
        } else {
            reader.skipValue();
        }
    }
    reader.endObject();
    return publicationDate;
}

---

From source file:com.ibm.watson.developer_cloud.alchemy.v1.util.TaxonomyTypeAdapter.java

License:Open Source License

@Override
public Taxonomy read(JsonReader reader) throws IOException {
    if (reader.peek() == JsonToken.NULL) {
        reader.nextNull();
        return null;
    }/* www .j a v a 2  s. co m*/

    final Taxonomy taxonomy = new Taxonomy();
    taxonomy.setConfident(true);

    reader.beginObject();
    while (reader.hasNext()) {
        final String name = reader.nextName();

        if (name.equals("confident")) {
            final String confidentAsString = reader.nextString();
            taxonomy.setConfident(confidentAsString == null || !confidentAsString.equals("no"));
        } else if (name.equals("label")) {
            final String label = reader.nextString();
            taxonomy.setLabel(label);
        } else if (name.equals("score")) {
            final Double score = reader.nextDouble();
            taxonomy.setScore(score);
        } else {
            reader.skipValue();
        }
    }
    reader.endObject();
    return taxonomy;
}

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