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BATCH-310: BatchStatus now implements Serializable with a readResolve(). Added a test case for serialization.

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lucasward
2008-01-23 17:44:46 +00:00
parent 2731c3299c
commit 1a7fdce73b
2 changed files with 64 additions and 20 deletions
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56
spring-batch-core/src/main/java/org/springframework/batch/core/domain/BatchStatus.java
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@@ -16,27 +16,39 @@
package org.springframework.batch.core.domain;
import java.io.Serializable;
/**
* Typesafe enumeration representating the status of an artifact within
* the batch container. See Effective Java Programming by Joshua Bloch
* for more details on the pattern used.
* Typesafe enumeration representing the status of an artifact within the
* batch environment. See Effective Java Programming by Joshua Bloch for more
* details on the pattern used.
*
* A BatchStatus can be safely serialized, however, it should be noted
* that the pattern can break down if different class loaders load
* the enumeration.
*
* @author Lucas Ward
*
* @author Greg Kick
*/
public class BatchStatus {
public class BatchStatus implements Serializable{
private static final long serialVersionUID = 1634960297477743037L;
private final String name;
private BatchStatus(String name) {
this.name = name;
}
public String toString(){
private Object readResolve() throws java.io.ObjectStreamException {
return getStatus(name);
}
public String toString() {
return name;
}
public static final BatchStatus COMPLETED = new BatchStatus("COMPLETED");
public static final BatchStatus STARTED = new BatchStatus("STARTED");
@@ -44,19 +56,25 @@ public class BatchStatus {
public static final BatchStatus STARTING = new BatchStatus("STARTING");
public static final BatchStatus FAILED = new BatchStatus("FAILED");
public static final BatchStatus STOPPED = new BatchStatus("STOPPED");
private static final BatchStatus[] VALUES = {STARTING, STARTED, COMPLETED, FAILED, STOPPED};
public static BatchStatus getStatus(String statusAsString){
for(int i = 0; i < VALUES.length; i++){
if(VALUES[i].toString().equals(statusAsString)){
return (BatchStatus)VALUES[i];
public static final BatchStatus STOPPED = new BatchStatus("STOPPED");
private static final BatchStatus[] VALUES = { STARTING, STARTED, COMPLETED, FAILED, STOPPED };
/**
* Given a string representation of a status, return the appropriate BatchStatus.
*
* @param statusAsString: string representation of a status
* @return Valid BatchStatus
* @throws IllegalArgumentException if no status matches provided string.
*/
public static BatchStatus getStatus(String statusAsString) {
final String upperCaseStatusAsString = statusAsString.toUpperCase();
for (int i = 0; i < VALUES.length; i++) {
if (VALUES[i].toString().equals(upperCaseStatusAsString)) {
return VALUES[i];
}
}
return null;
throw new IllegalArgumentException("The string did not match a valid status.");
}
}