spring-batch CompositeJobParametersValidator 源码
spring-batch CompositeJobParametersValidator 代码
文件路径：/spring-batch-core/src/main/java/org/springframework/batch/core/job/CompositeJobParametersValidator.java
/*
* Copyright 2011-2018 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
*
* https://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.core.job;
import java.util.List;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.JobParametersInvalidException;
import org.springframework.batch.core.JobParametersValidator;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* Composite {@link JobParametersValidator} that passes the job parameters through a
* sequence of injected <code>JobParametersValidator</code>s
*
* @author Morten Andersen-Gott
* @author Mahmoud Ben Hassine
*
*/
public class CompositeJobParametersValidator implements JobParametersValidator, InitializingBean {
private List<JobParametersValidator> validators;
/**
* Validates the JobParameters according to the injected JobParameterValidators
* Validation stops and exception is thrown on first validation error
* @param parameters some {@link JobParameters}
* @throws JobParametersInvalidException if the parameters are invalid
*/
@Override
public void validate(@Nullable JobParameters parameters) throws JobParametersInvalidException {
for (JobParametersValidator validator : validators) {
validator.validate(parameters);
}
}
/**
* Public setter for the validators
* @param validators list of validators to be used by the
* CompositeJobParametersValidator.
*/
public void setValidators(List<JobParametersValidator> validators) {
this.validators = validators;
}
@Override
public void afterPropertiesSet() throws Exception {
Assert.notNull(validators, "The 'validators' may not be null");
Assert.notEmpty(validators, "The 'validators' may not be empty");
}
}
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