com.codefororlando.streettrees.api.deserializer.ResponseSanitizer.java Source code

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Here is the source code for com.codefororlando.streettrees.api.deserializer.ResponseSanitizer.java

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// Copyright  2017 Code for Orlando.
//
// MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

package com.codefororlando.streettrees.api.deserializer;

import com.codefororlando.streettrees.api.models.Tree;
import com.google.gson.Gson;
import com.google.gson.TypeAdapter;
import com.google.gson.TypeAdapterFactory;
import com.google.gson.reflect.TypeToken;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonWriter;

import java.io.IOException;

// NOTE(jpr): adapted from
// https://static.javadoc.io/com.google.code.gson/gson/2.8.0/com/google/gson/Gson.html#getDelegateAdapter-com.google.gson.TypeAdapterFactory-com.google.gson.reflect.TypeToken-
public class ResponseSanitizer implements TypeAdapterFactory {
    @Override
    public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
        final TypeAdapter<T> delegate = gson.getDelegateAdapter(this, type);
        return new TypeAdapter<T>() {
            public void write(JsonWriter out, T value) throws IOException {
                delegate.write(out, value);
            }

            public T read(JsonReader in) throws IOException {
                T parsedObject = delegate.read(in);

                // NOTE(jpr): Tree names come in with errant whitespace, and its easiest to fix it here
                // rather than fighting retrofit during deserialization
                if (parsedObject instanceof Tree) {
                    Tree tree = (Tree) parsedObject;
                    tree.setTreeName(tree.getTreeName().trim());
                }

                return parsedObject;
            }
        };
    }
}