/*
* Copyright 2013 the original author or 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 org.springframework.batch.admin.domain.support;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.ObjectCodec;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.batch.core.JobParameter;
/**
* Jackson Deserializer for {@link org.springframework.batch.core.JobParameter} de-serialization.
*
* @author Gunnar Hillert
* @since 1.0
*/
public class JobParameterJacksonDeserializer extends JsonDeserializer<JobParameter> {
private static Log logger = LogFactory.getLog(JobParameterJacksonDeserializer.class);
@Override
public JobParameter deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
throws IOException{
SimpleDateFormat formatter = new SimpleDateFormat();
ObjectCodec oc = jsonParser.getCodec();
JsonNode node = oc.readTree(jsonParser);
final String value = node.get("value").asText();
final boolean identifying = node.get("identifying").asBoolean();
final String type = node.get("type").asText();
final JobParameter jobParameter;
if (!type.isEmpty() && !type.equalsIgnoreCase("STRING")) {
if ("DATE".equalsIgnoreCase(type)) {
try {
jobParameter = new JobParameter(formatter.parse(value), identifying);
}
catch (ParseException e) {
throw new IOException(e);
}
}
else if ("DOUBLE".equalsIgnoreCase(type)) {
jobParameter = new JobParameter(Double.valueOf(value), identifying);
}
else if ("LONG".equalsIgnoreCase(type)) {
jobParameter = new JobParameter(Long.valueOf(value), identifying);
}
else {
throw new IllegalStateException("Unsupported JobParameter type: " + type);
}
}
else {
jobParameter = new JobParameter(value, identifying);
}
if (logger.isDebugEnabled()) {
logger.debug(String.format("jobParameter - value: %s (type: %s, isIdentifying: %s)",
jobParameter.getValue(), jobParameter.getType().name(), jobParameter.isIdentifying()));
}
return jobParameter;
}
}