/*
* Copyright 2011-2013 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
*
* http://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.data.redis.connection.jredis;
import java.util.Map;
import java.util.Properties;
import org.jredis.ClientRuntimeException;
import org.jredis.RedisException;
import org.jredis.RedisType;
import org.jredis.Sort;
import org.jredis.connector.NotConnectedException;
import org.springframework.dao.DataAccessException;
import org.springframework.dao.InvalidDataAccessApiUsageException;
import org.springframework.dao.InvalidDataAccessResourceUsageException;
import org.springframework.data.redis.RedisConnectionFailureException;
import org.springframework.data.redis.connection.DataType;
import org.springframework.data.redis.connection.SortParameters;
import org.springframework.data.redis.connection.SortParameters.Order;
import org.springframework.data.redis.connection.SortParameters.Range;
/**
* Helper class featuring methods for JRedis connection handling, providing support for exception translation.
*
* @author Costin Leau
* @author Jennifer Hickey
*/
public abstract class JredisUtils {
/**
* Converts the given, native JRedis exception to Spring's DAO hierarchy.
*
* @param ex JRedis exception
* @return converted exception
*/
public static DataAccessException convertJredisAccessException(RedisException ex) {
return new InvalidDataAccessApiUsageException(ex.getMessage(), ex);
}
/**
* Converts the given, native JRedis exception to Spring's DAO hierarchy.
*
* @param ex JRedis exception
* @return converted exception
*/
public static DataAccessException convertJredisAccessException(ClientRuntimeException ex) {
if (ex instanceof NotConnectedException) {
return new RedisConnectionFailureException(ex.getMessage(), ex);
}
return new InvalidDataAccessResourceUsageException(ex.getMessage(), ex);
}
static DataType convertDataType(RedisType type) {
switch (type) {
case NONE:
return DataType.NONE;
case string:
return DataType.STRING;
case list:
return DataType.LIST;
case set:
return DataType.SET;
// case zset:
// return DataType.ZSET;
case hash:
return DataType.HASH;
}
return null;
}
static Sort applySortingParams(Sort jredisSort, SortParameters params, byte[] storeKey) {
if (params != null) {
byte[] byPattern = params.getByPattern();
if (byPattern != null) {
jredisSort.BY(byPattern);
}
byte[][] getPattern = params.getGetPattern();
if (getPattern != null && getPattern.length > 0) {
for (byte[] bs : getPattern) {
jredisSort.GET(bs);
}
}
Range limit = params.getLimit();
if (limit != null) {
jredisSort.LIMIT(limit.getStart(), limit.getCount());
}
Order order = params.getOrder();
if (order != null && order.equals(Order.DESC)) {
jredisSort.DESC();
}
Boolean isAlpha = params.isAlphabetic();
if (isAlpha != null && isAlpha) {
jredisSort.ALPHA();
}
}
if (storeKey != null) {
jredisSort.STORE(storeKey);
}
return jredisSort;
}
static Properties info(Map<String, String> map) {
Properties info = new Properties();
info.putAll(map);
return info;
}
static Long toLong(Boolean source) {
return source ? 1l : 0l;
}
}