/*
* Copyright 2015 Google Inc. All rights reserved.
*
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
* file except in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
* ANY KIND, either express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.google.maps.internal;
import com.google.gson.TypeAdapter;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonToken;
import com.google.gson.stream.JsonWriter;
import com.google.maps.model.Fare;
import java.io.IOException;
import java.math.BigDecimal;
import java.util.Currency;
/**
* This class handles conversion from JSON to {@link com.google.maps.model.Fare}.
*/
public class FareAdapter extends TypeAdapter<Fare> {
/**
* Read a Fare object from the Directions API and convert to a {@link com.google.maps.model.Fare}
*
* <pre>{
* "currency": "USD",
* "value": 6
* }</pre>
*/
@Override
public Fare read(JsonReader reader) throws IOException {
if (reader.peek() == JsonToken.NULL) {
reader.nextNull();
return null;
}
Fare fare = new Fare();
reader.beginObject();
while (reader.hasNext()) {
String key = reader.nextName();
if ("currency".equals(key)) {
fare.currency = Currency.getInstance(reader.nextString());
} else if ("value".equals(key)) {
// this relies on nextString() being able to coerce raw numbers to strings
fare.value = new BigDecimal(reader.nextString());
} else {
// Be forgiving of unexpected values
reader.skipValue();
}
}
reader.endObject();
return fare;
}
/**
* This method is not implemented.
*/
@Override
public void write(JsonWriter out, Fare value) throws IOException {
throw new UnsupportedOperationException("Unimplemented method");
}
}