com.cedarsoft.serialization.serializers.jackson.ColorSerializer.java Source code

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Here is the source code for com.cedarsoft.serialization.serializers.jackson.ColorSerializer.java

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/**
 * Copyright (C) cedarsoft GmbH.
 *
 * Licensed under the GNU General Public License version 3 (the "License")
 * with Classpath Exception; you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *         http://www.cedarsoft.org/gpl3ce
 *         (GPL 3 with Classpath Exception)
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 3 only, as
 * published by the Free Software Foundation. cedarsoft GmbH designates this
 * particular file as subject to the "Classpath" exception as provided
 * by cedarsoft GmbH in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 3 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 3 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact cedarsoft GmbH, 72810 Gomaringen, Germany,
 * or visit www.cedarsoft.com if you need additional information or
 * have any questions.
 */

package com.cedarsoft.serialization.serializers.jackson;

import com.cedarsoft.serialization.jackson.JacksonParserWrapper;
import com.cedarsoft.version.Version;
import com.cedarsoft.version.VersionException;
import com.cedarsoft.version.VersionRange;
import com.cedarsoft.serialization.jackson.AbstractJacksonSerializer;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.JsonToken;

import javax.annotation.Nonnull;
import javax.inject.Inject;
import java.awt.Color;
import java.io.IOException;

/**
 *
 */
public class ColorSerializer extends AbstractJacksonSerializer<Color> {
    @Nonnull

    public static final String PROPERTY_RED = "red";
    @Nonnull

    public static final String PROPERTY_GREEN = "green";
    @Nonnull

    public static final String PROPERTY_BLUE = "blue";

    @Inject
    public ColorSerializer() {
        super("color", VersionRange.from(1, 0, 0).to(1, 0, 0));
    }

    @Override
    public void serialize(@Nonnull JsonGenerator serializeTo, @Nonnull Color object, @Nonnull Version formatVersion)
            throws IOException, VersionException, JsonProcessingException {
        serializeTo.writeNumberField(PROPERTY_RED, object.getRed());
        serializeTo.writeNumberField(PROPERTY_GREEN, object.getGreen());
        serializeTo.writeNumberField(PROPERTY_BLUE, object.getBlue());
    }

    @Nonnull
    @Override
    public Color deserialize(@Nonnull JsonParser deserializeFrom, @Nonnull Version formatVersion)
            throws IOException, VersionException, JsonProcessingException {
        assert isVersionReadable(formatVersion);
        //red
        JacksonParserWrapper parserWrapper = new JacksonParserWrapper(deserializeFrom);
        parserWrapper.nextToken();
        parserWrapper.verifyCurrentToken(JsonToken.FIELD_NAME);
        String currentName2 = parserWrapper.getCurrentName();

        if (!PROPERTY_RED.equals(currentName2)) {
            throw new JsonParseException(
                    "Invalid field. Expected <" + PROPERTY_RED + "> but was <" + currentName2 + ">",
                    parserWrapper.getCurrentLocation());
        }
        parserWrapper.nextToken();
        int red = parserWrapper.getIntValue();

        parserWrapper.nextToken();
        parserWrapper.verifyCurrentToken(JsonToken.FIELD_NAME);
        String currentName1 = parserWrapper.getCurrentName();

        if (!PROPERTY_GREEN.equals(currentName1)) {
            throw new JsonParseException(
                    "Invalid field. Expected <" + PROPERTY_GREEN + "> but was <" + currentName1 + ">",
                    parserWrapper.getCurrentLocation());
        }
        parserWrapper.nextToken();
        int green = parserWrapper.getIntValue();

        parserWrapper.nextToken();
        parserWrapper.verifyCurrentToken(JsonToken.FIELD_NAME);
        String currentName = parserWrapper.getCurrentName();

        if (!PROPERTY_BLUE.equals(currentName)) {
            throw new JsonParseException(
                    "Invalid field. Expected <" + PROPERTY_BLUE + "> but was <" + currentName + ">",
                    parserWrapper.getCurrentLocation());
        }
        parserWrapper.nextToken();
        int blue = parserWrapper.getIntValue();

        parserWrapper.nextToken(JsonToken.END_OBJECT);

        return new Color(red, green, blue);
    }
}