| 1 | /* |
| 2 | * Copyright 2011 the original author or authors. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.springframework.batch.core.job; |
| 17 | |
| 18 | import java.util.List; |
| 19 | |
| 20 | import org.springframework.batch.core.JobParameters; |
| 21 | import org.springframework.batch.core.JobParametersInvalidException; |
| 22 | import org.springframework.batch.core.JobParametersValidator; |
| 23 | import org.springframework.beans.factory.InitializingBean; |
| 24 | import org.springframework.util.Assert; |
| 25 | |
| 26 | /** |
| 27 | * Composite {@link JobParametersValidator} that passes the job parameters through a sequence of |
| 28 | * injected <code>JobParametersValidator</code>s |
| 29 | * |
| 30 | * @author Morten Andersen-Gott |
| 31 | * |
| 32 | */ |
| 33 | public class CompositeJobParametersValidator implements JobParametersValidator, InitializingBean { |
| 34 | |
| 35 | private List<JobParametersValidator> validators; |
| 36 | |
| 37 | /** |
| 38 | * Validates the JobParameters according to the injected JobParameterValidators |
| 39 | * Validation stops and exception is thrown on first validation error |
| 40 | * |
| 41 | * @param parameters some {@link JobParameters} |
| 42 | * @throws JobParametersInvalidException if the parameters are invalid |
| 43 | */ |
| 44 | public void validate(JobParameters parameters) throws JobParametersInvalidException { |
| 45 | for (JobParametersValidator validator : validators) { |
| 46 | validator.validate(parameters); |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * Public setter for the validators |
| 52 | * @param validators |
| 53 | */ |
| 54 | public void setValidators(List<JobParametersValidator> validators) { |
| 55 | this.validators = validators; |
| 56 | } |
| 57 | |
| 58 | public void afterPropertiesSet() throws Exception { |
| 59 | Assert.notNull(validators, "The 'validators' may not be null"); |
| 60 | Assert.notEmpty(validators, "The 'validators' may not be empty"); |
| 61 | } |
| 62 | |
| 63 | |
| 64 | |
| 65 | } |