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

Introduction

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

Source

/**
 * 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.io.IOException;

public class VersionRangeSerializer extends AbstractJacksonSerializer<VersionRange> {

    public static final String PROPERTY_MIN = "min";

    public static final String PROPERTY_MAX = "max";

    public static final String PROPERTY_INCLUDELOWER = "includeLower";

    public static final String PROPERTY_INCLUDEUPPER = "includeUpper";

    @Inject
    public VersionRangeSerializer() {
        super("version-range", VersionRange.from(1, 0, 0).to(1, 0, 0));
    }

    @Override
    public void serialize(@Nonnull JsonGenerator serializeTo, @Nonnull VersionRange object,
            @Nonnull Version formatVersion) throws IOException, JsonProcessingException {
        verifyVersionReadable(formatVersion);

        serializeTo.writeStringField(PROPERTY_MIN, object.getMin().format());
        serializeTo.writeStringField(PROPERTY_MAX, object.getMax().format());

        //includeLower
        serializeTo.writeBooleanField(PROPERTY_INCLUDELOWER, object.isIncludeLower());
        //includeUpper
        serializeTo.writeBooleanField(PROPERTY_INCLUDEUPPER, object.isIncludeUpper());
    }

    @Nonnull
    @Override
    public VersionRange deserialize(@Nonnull JsonParser deserializeFrom, @Nonnull Version formatVersion)
            throws VersionException, IOException, JsonProcessingException {
        //min
        JacksonParserWrapper parserWrapper = new JacksonParserWrapper(deserializeFrom);
        parserWrapper.nextToken();
        parserWrapper.verifyCurrentToken(JsonToken.FIELD_NAME);
        String currentName3 = parserWrapper.getCurrentName();

        if (!PROPERTY_MIN.equals(currentName3)) {
            throw new JsonParseException(
                    "Invalid field. Expected <" + PROPERTY_MIN + "> but was <" + currentName3 + ">",
                    parserWrapper.getCurrentLocation());
        }
        parserWrapper.nextToken();
        Version min = Version.parse(deserializeFrom.getText());
        //max
        parserWrapper.nextToken();
        parserWrapper.verifyCurrentToken(JsonToken.FIELD_NAME);
        String currentName2 = parserWrapper.getCurrentName();

        if (!PROPERTY_MAX.equals(currentName2)) {
            throw new JsonParseException(
                    "Invalid field. Expected <" + PROPERTY_MAX + "> but was <" + currentName2 + ">",
                    parserWrapper.getCurrentLocation());
        }
        parserWrapper.nextToken();
        Version max = Version.parse(deserializeFrom.getText());
        //includeLower
        parserWrapper.nextToken();
        parserWrapper.verifyCurrentToken(JsonToken.FIELD_NAME);
        String currentName1 = parserWrapper.getCurrentName();

        if (!PROPERTY_INCLUDELOWER.equals(currentName1)) {
            throw new JsonParseException(
                    "Invalid field. Expected <" + PROPERTY_INCLUDELOWER + "> but was <" + currentName1 + ">",
                    parserWrapper.getCurrentLocation());
        }
        parserWrapper.nextToken();
        boolean includeLower = deserializeFrom.getBooleanValue();
        //includeUpper
        parserWrapper.nextToken();
        parserWrapper.verifyCurrentToken(JsonToken.FIELD_NAME);
        String currentName = parserWrapper.getCurrentName();

        if (!PROPERTY_INCLUDEUPPER.equals(currentName)) {
            throw new JsonParseException(
                    "Invalid field. Expected <" + PROPERTY_INCLUDEUPPER + "> but was <" + currentName + ">",
                    parserWrapper.getCurrentLocation());
        }
        parserWrapper.nextToken();
        boolean includeUpper = deserializeFrom.getBooleanValue();
        //Finally closing element
        parserWrapper.nextToken(JsonToken.END_OBJECT);
        //Constructing the deserialized object
        return new VersionRange(min, max, includeLower, includeUpper);
    }

}