OPEN - issue BATCH-105: The functionality in "DefaultFlatFileItemProvider" (validating and mapping) should be provided by the infrastructure layer (DefaultFlatFileInputSource).

http://opensource.atlassian.com/projects/spring/browse/BATCH-105
This commit is contained in:
dsyer
2007-08-21 11:04:27 +00:00
parent 63b097a2d2
commit c7948c453a
2 changed files with 0 additions and 295 deletions

View File

@@ -1,106 +0,0 @@
/*
* Copyright 2006-2007 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.execution.tasklet.support;
import java.util.Properties;
import org.springframework.batch.io.file.FieldSet;
import org.springframework.batch.io.file.FieldSetMapper;
import org.springframework.batch.item.provider.AbstractFieldSetItemProvider;
import org.springframework.batch.item.validator.Validator;
import org.springframework.batch.restart.RestartData;
import org.springframework.batch.restart.Restartable;
import org.springframework.batch.statistics.StatisticsProvider;
/**
*
* Uses a {@link FieldSetMapper} to convert each line from an input source. Also
* adds {@link Restartable} as mandatory behaviour, delegating to the parent
* provider's input source.
*
* @author Dave Syer
*/
public class DefaultFlatFileItemProvider extends AbstractFieldSetItemProvider implements Restartable,
StatisticsProvider {
private FieldSetMapper mapper;
private Validator validator;
/*
* (non-Javadoc)
* @see org.springframework.batch.item.provider.AbstractFieldSetItemProvider#doNext(org.springframework.batch.io.line.FieldSet)
*/
protected Object transform(FieldSet fieldSet) {
Object value = mapper.mapLine(fieldSet);
if (validator!=null) {
validator.validate(value);
}
return value;
}
/**
* @param mapper the mapper to set
*/
public void setMapper(FieldSetMapper mapper) {
this.mapper = mapper;
}
/**
* @param validator the validator to set
*/
public void setValidator(Validator validator) {
this.validator = validator;
}
/**
* @see Restartable#getRestartData()
* @throws IllegalStateException if the parent template is not itself
* {@link Restartable}.
*/
public RestartData getRestartData() {
if (!(source instanceof Restartable)) {
throw new IllegalStateException("Input Template is not Restartable");
}
return ((Restartable) source).getRestartData();
}
/**
* @see Restartable#restoreFrom(RestartData)
* @throws IllegalStateException if the parent template is not itself
* {@link Restartable}.
*/
public void restoreFrom(RestartData data) {
if (!(source instanceof Restartable)) {
throw new IllegalStateException("Input Template is not Restartable");
}
((Restartable) source).restoreFrom(data);
}
/**
* @return delegates to the parent template of it is a
* {@link StatisticsProvider}, otherwise returns an empty
* {@link Properties} instance.
* @see StatisticsProvider#getStatistics()
*/
public Properties getStatistics() {
if (!(source instanceof StatisticsProvider)) {
return new Properties();
}
return ((StatisticsProvider) source).getStatistics();
}
}