/*
* Copyright 2014 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.Distance;
import com.google.maps.model.Duration;
import java.io.IOException;
/**
* This class handles conversion from JSON to {@link Distance}.
*
* <p>Please see
* <a href="https://google-gson.googlecode.com/svn/trunk/gson/docs/javadocs/com/google/gson/TypeAdapter.html">GSON Type
* Adapter</a> for more detail.
*/
public class DurationAdapter extends TypeAdapter<Duration> {
/**
* Read a distance object from a Directions API result and convert it to a {@link Distance}.
*
* <p>We are expecting to receive something akin to the following:
* <pre>
* {
* "value": 207,
"text": "0.1 mi"
* }
* </pre>
*/
@Override
public Duration read(JsonReader reader) throws IOException {
if (reader.peek() == JsonToken.NULL) {
reader.nextNull();
return null;
}
Duration duration = new Duration();
reader.beginObject();
while (reader.hasNext()) {
String name = reader.nextName();
if (name.equals("text")) {
duration.humanReadable = reader.nextString();
} else if (name.equals("value")) {
duration.inSeconds = reader.nextLong();
}
}
reader.endObject();
return duration;
}
/**
* This method is not implemented.
*/
@Override
public void write(JsonWriter writer, Duration value) throws IOException {
throw new UnsupportedOperationException("Unimplemented method");
}
}