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DATAREDIS-603 - Fall back to RedisSystemException for non translateable exceptions during cluster execution.

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We now use a fallback exception translation strategy in JedisClusterConnection to map all non-mapped exceptions to RedisSystemException. This change prevents null pointer exceptions caused by potentially throwing null.

Original Pull Request: #275
This commit is contained in:
Mark Paluch
2017-09-06 16:07:19 +02:00
committed by Christoph Strobl
parent 2d49661e2d
commit f5c9e75d97
6 changed files with 76 additions and 11 deletions
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11
src/main/java/org/springframework/data/redis/connection/ClusterCommandExecutor.java
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@@ -137,7 +137,7 @@ public class ClusterCommandExecutor implements DisposableBean {
return new NodeResult<>(node, cmd.doInCluster(client));
} catch (RuntimeException ex) {
RuntimeException translatedException = convertToDataAccessExeption(ex);
RuntimeException translatedException = convertToDataAccessException(ex);
if (translatedException instanceof ClusterRedirectException) {
ClusterRedirectException cre = (ClusterRedirectException) translatedException;
return executeCommandOnSingleNode(cmd,
@@ -234,13 +234,13 @@ public class ClusterCommandExecutor implements DisposableBean {
}
} catch (ExecutionException e) {
RuntimeException ex = convertToDataAccessExeption((Exception) e.getCause());
RuntimeException ex = convertToDataAccessException((Exception) e.getCause());
exceptions.put(entry.getKey().getNode(), ex != null ? ex : e.getCause());
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
RuntimeException ex = convertToDataAccessExeption((Exception) e.getCause());
RuntimeException ex = convertToDataAccessException((Exception) e.getCause());
exceptions.put(entry.getKey().getNode(), ex != null ? ex : e.getCause());
break;
}
@@ -315,7 +315,7 @@ public class ClusterCommandExecutor implements DisposableBean {
return new NodeResult<>(node, cmd.doInCluster(client, key), key);
} catch (RuntimeException ex) {
RuntimeException translatedException = convertToDataAccessExeption(ex);
RuntimeException translatedException = convertToDataAccessException(ex);
throw translatedException != null ? translatedException : ex;
} finally {
this.resourceProvider.returnResourceForSpecificNode(node, client);
@@ -326,8 +326,7 @@ public class ClusterCommandExecutor implements DisposableBean {
return this.topologyProvider.getTopology();
}
@Nullable
private DataAccessException convertToDataAccessExeption(Exception e) {
private DataAccessException convertToDataAccessException(Exception e) {
return exceptionTranslationStrategy.translate(e);
}

10
src/main/java/org/springframework/data/redis/connection/jedis/JedisClusterConnection.java
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@@ -40,7 +40,8 @@ import org.springframework.dao.DataAccessResourceFailureException;
import org.springframework.dao.InvalidDataAccessApiUsageException;
import org.springframework.data.redis.ClusterStateFailureException;
import org.springframework.data.redis.ExceptionTranslationStrategy;
import org.springframework.data.redis.PassThroughExceptionTranslationStrategy;
import org.springframework.data.redis.FallbackExceptionTranslationStrategy;
import org.springframework.data.redis.RedisSystemException;
import org.springframework.data.redis.connection.*;
import org.springframework.data.redis.connection.ClusterCommandExecutor.ClusterCommandCallback;
import org.springframework.data.redis.connection.ClusterCommandExecutor.MultiKeyClusterCommandCallback;
@@ -63,7 +64,7 @@ import org.springframework.util.Assert;
*/
public class JedisClusterConnection implements DefaultedRedisClusterConnection {
private static final ExceptionTranslationStrategy EXCEPTION_TRANSLATION = new PassThroughExceptionTranslationStrategy(
private static final ExceptionTranslationStrategy EXCEPTION_TRANSLATION = new FallbackExceptionTranslationStrategy(
JedisConverters.exceptionConverter());
private final Log log = LogFactory.getLog(getClass());
@@ -653,7 +654,10 @@ public class JedisClusterConnection implements DefaultedRedisClusterConnection {
*/
protected DataAccessException convertJedisAccessException(Exception ex) {
return EXCEPTION_TRANSLATION.translate(ex);
DataAccessException translated = EXCEPTION_TRANSLATION.translate(ex);
return translated != null ? translated : new RedisSystemException(ex.getMessage(), ex);
}
/*

3
src/main/java/org/springframework/data/redis/connection/jedis/JedisConnection.java
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@@ -43,6 +43,7 @@ import org.springframework.dao.InvalidDataAccessApiUsageException;
import org.springframework.data.redis.ExceptionTranslationStrategy;
import org.springframework.data.redis.FallbackExceptionTranslationStrategy;
import org.springframework.data.redis.RedisConnectionFailureException;
import org.springframework.data.redis.RedisSystemException;
import org.springframework.data.redis.connection.*;
import org.springframework.data.redis.connection.convert.TransactionResultConverter;
import org.springframework.lang.Nullable;
@@ -207,7 +208,7 @@ public class JedisConnection extends AbstractRedisConnection {
broken = true;
}
return exception;
return exception != null ? exception : new RedisSystemException(ex.getMessage(), ex);
}
/*

1
src/main/java/org/springframework/data/redis/connection/lettuce/LettuceConnection.java
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@@ -422,6 +422,7 @@ public class LettuceConnection extends AbstractRedisConnection {
/**
* 'Native' or 'raw' execution of the given command along-side the given arguments.
*
* @see RedisCommands#execute(String, byte[]...)
* @param command Command to execute
* @param commandOutputTypeHint Type of Output to use, may be (may be {@literal null}).
* @param args Possible command arguments (may be {@literal null})