/* Copyright (c) 2014, Effektif GmbH.
*
* 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.effektif.workflow.impl.json.types;
import java.lang.reflect.Type;
import com.effektif.workflow.api.model.WorkflowId;
import com.effektif.workflow.impl.data.InvalidValueException;
import com.effektif.workflow.impl.json.JsonReader;
import com.effektif.workflow.impl.json.JsonTypeMapper;
import com.effektif.workflow.impl.json.JsonTypeMapperFactory;
import com.effektif.workflow.impl.json.JsonWriter;
import com.effektif.workflow.impl.json.Mappings;
/**
* Maps a {@link WorkflowId} to a JSON string field for serialisation and deserialisation.
*
* @author Tom Baeyens
*/
public class WorkflowIdStreamMapper extends AbstractTypeMapper<WorkflowId> implements JsonTypeMapperFactory {
@Override
public JsonTypeMapper createTypeMapper(Type type, Class< ? > clazz, Mappings mappings) {
if (clazz==WorkflowId.class) {
return this;
}
return null;
}
@Override
public void write(WorkflowId objectValue, JsonWriter jsonWriter) {
jsonWriter.writeString(objectValue.getInternal());
}
@Override
public WorkflowId read(Object jsonValue, JsonReader jsonReader) {
if (!String.class.isAssignableFrom(jsonValue.getClass())) {
throw new InvalidValueException(String.format("Invalid workflow ID ā%sā (%s)", jsonValue, jsonValue.getClass().getName()));
}
return new WorkflowId((String)jsonValue);
}
}