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Java SDK for Serverless Workflow Specification

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/*
 * Copyright 2020-Present The Serverless Workflow Specification Authors
 * 
 * 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 io.serverlessworkflow.api.deserializers;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
import io.serverlessworkflow.api.events.EventDefinition;
import io.serverlessworkflow.api.interfaces.WorkflowPropertySource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;

public class EventDefinitionKindDeserializer extends StdDeserializer {
    private static final long serialVersionUID = 510l;
    private static Logger logger = LoggerFactory.getLogger(EventDefinitionKindDeserializer.class);

    private WorkflowPropertySource context;

    public EventDefinitionKindDeserializer() {
        this(EventDefinition.Kind.class);
    }

    public EventDefinitionKindDeserializer(WorkflowPropertySource context) {
        this(EventDefinition.Kind.class);
        this.context = context;
    }

    public EventDefinitionKindDeserializer(Class vc) {
        super(vc);
    }

    @Override
    public EventDefinition.Kind deserialize(JsonParser jp,
                                            DeserializationContext ctxt) throws IOException {

        String value = jp.getText();
        if (context != null) {
            try {
                String result = context.getPropertySource().getProperty(value);

                if (result != null) {
                    return EventDefinition.Kind.fromValue(result);
                } else {
                    return EventDefinition.Kind.fromValue(jp.getText());
                }
            } catch (Exception e) {
                logger.info("Exception trying to evaluate property: {}", e.getMessage());
                return EventDefinition.Kind.fromValue(jp.getText());
            }
        } else {
            return EventDefinition.Kind.fromValue(jp.getText());
        }
    }
}