EnumTypeSerializer.java

/*
 * Copyright 2017 Red Hat, Inc. and/or its affiliates.
 *
 * 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 org.kie.workbench.common.stunner.bpmn.backend.marshall.json.oryx.property;

import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;

import org.apache.commons.lang3.StringUtils;
import org.kie.workbench.common.stunner.core.definition.property.PropertyType;
import org.kie.workbench.common.stunner.core.definition.property.type.EnumType;
import org.kie.workbench.common.stunner.core.util.DefinitionUtils;

@ApplicationScoped
public class EnumTypeSerializer implements Bpmn2OryxPropertySerializer<Object> {

    DefinitionUtils definitionUtils;

    protected EnumTypeSerializer() {
        this(null);
    }

    @Inject
    public EnumTypeSerializer(final DefinitionUtils definitionUtils) {
        this.definitionUtils = definitionUtils;
    }

    @Override
    public boolean accepts(final PropertyType type) {
        return EnumType.name.equals(type.getName());
    }

    @Override
    public Object parse(final Object property,
                        final String value) {
        if (null == value) {
            return null;
        } else {
            // Assume that enum names that contains an "_" symbol (underscore) are serialized
            // string by replacing this symbol by a whitespace and vice-versa.
            // Eg: For TaskType.TASK_BUSINESS_RULE -> in oryx the json string value is "Business Rule".
            final String v = value.toUpperCase().replaceAll(" ",
                                                            "_");
            return definitionUtils.getPropertyAllowedValue(property,
                                                           v);
        }
    }

    @Override
    public String serialize(final Object property,
                            final Object value) {
        return StringUtils.capitalize(value.toString().toLowerCase());
    }
}