com.continuuity.weave.internal.json.LocalFileCodec.java Source code

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Here is the source code for com.continuuity.weave.internal.json.LocalFileCodec.java

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/*
 * Copyright 2012-2013 Continuuity,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.continuuity.weave.internal.json;

import com.continuuity.weave.api.LocalFile;
import com.continuuity.weave.internal.DefaultLocalFile;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

import java.lang.reflect.Type;
import java.net.URI;

/**
 *
 */
public final class LocalFileCodec implements JsonSerializer<LocalFile>, JsonDeserializer<LocalFile> {

    @Override
    public JsonElement serialize(LocalFile src, Type typeOfSrc, JsonSerializationContext context) {
        JsonObject json = new JsonObject();

        json.addProperty("name", src.getName());
        json.addProperty("uri", src.getURI().toASCIIString());
        json.addProperty("lastModified", src.getLastModified());
        json.addProperty("size", src.getSize());
        json.addProperty("archive", src.isArchive());
        json.addProperty("pattern", src.getPattern());

        return json;
    }

    @Override
    public LocalFile deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
            throws JsonParseException {
        JsonObject jsonObj = json.getAsJsonObject();

        String name = jsonObj.get("name").getAsString();
        URI uri = URI.create(jsonObj.get("uri").getAsString());
        long lastModified = jsonObj.get("lastModified").getAsLong();
        long size = jsonObj.get("size").getAsLong();
        boolean archive = jsonObj.get("archive").getAsBoolean();
        JsonElement pattern = jsonObj.get("pattern");

        return new DefaultLocalFile(name, uri, lastModified, size, archive,
                (pattern == null || pattern.isJsonNull()) ? null : pattern.getAsString());
    }
}