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Add support to build StaxEventItemReader when no Resource is provided

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Resolves #3736
This commit is contained in:
Parikshit Dutta
2020-07-26 01:33:37 +05:30
committed by Mahmoud Ben Hassine
parent 4000d1d579
commit c2625b1f87
2 changed files with 23 additions and 9 deletions
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13
spring-batch-infrastructure/src/main/java/org/springframework/batch/item/xml/builder/StaxEventItemReaderBuilder.java
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@@ -21,6 +21,9 @@ import java.util.List;
import javax.xml.stream.XMLInputFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.batch.item.xml.StaxEventItemReader;
import org.springframework.core.io.Resource;
import org.springframework.oxm.Unmarshaller;
@@ -34,10 +37,13 @@ import org.springframework.util.xml.StaxUtils;
* @author Michael Minella
* @author Glenn Renfro
* @author Mahmoud Ben Hassine
* @author Parikshit Dutta
* @since 4.0
*/
public class StaxEventItemReaderBuilder<T> {
protected Log logger = LogFactory.getLog(getClass());
private boolean strict = true;
private Resource resource;
@@ -215,10 +221,13 @@ public class StaxEventItemReaderBuilder<T> {
* @return a new instance of the {@link StaxEventItemReader}
*/
public StaxEventItemReader<T> build() {
Assert.notNull(this.resource, "A resource is required.");
StaxEventItemReader<T> reader = new StaxEventItemReader<>();
if (this.resource == null) {
logger.debug("The resource is null. This is only a valid scenario when " +
"injecting resource later as in when using the MultiResourceItemReader");
}
if (this.saveState) {
Assert.state(StringUtils.hasText(this.name), "A name is required when saveState is set to true.");
}