本文整理汇总了Java中com.mysql.fabric.ShardingType类的典型用法代码示例。如果您正苦于以下问题:Java ShardingType类的具体用法?Java ShardingType怎么用?Java ShardingType使用的例子?那么, 这里精选的类代码示例或许可以为您提供帮助。
ShardingType类属于com.mysql.fabric包,在下文中一共展示了ShardingType类的8个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: testHashShardMappingKeyLookup
import com.mysql.fabric.ShardingType; //导入依赖的package包/类
public void testHashShardMappingKeyLookup() throws Exception {
final String globalGroupName = "My global group";
final String lowerBounds[] = new String[] { /* 0 = */"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", /* 1 = */"66666666666666666666666666666666",
/* 2 = */"2809A05A22A4A9C1882A580BCC0AD8A6", /* 3 = */"DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD" };
// setup the mapping
Set<ShardIndex> shardIndices = new HashSet<ShardIndex>();
int shardId = 0; // shard id's added sequentially increasing from 0
for (String lowerBound : lowerBounds) {
ShardIndex i = new ShardIndex(lowerBound, shardId, "server_group_" + shardId);
shardId++;
shardIndices.add(i);
}
ShardMapping mapping = new HashShardMapping(5000, ShardingType.HASH, globalGroupName, null, shardIndices);
// test lookups mapping of test value to the group it maps to test values are hashed with MD5 and compared to lowerBounds values
String testPairs[][] = new String[][] {
// exact match should be in that shard
new String[] { "Jess", "server_group_2" }, // hash = 2809a05a22a4a9c1882a580bcc0ad8a6
new String[] { "x", "server_group_1" }, // hash = 9dd4e461268c8034f5c8564e155c67a6
new String[] { "X", "server_group_3" }, // hash = 02129bb861061d1a052c592e2dc6b383
new String[] { "Y", "server_group_2" }, // hash = 57cec4137b614c87cb4e24a3d003a3e0
new String[] { "g", "server_group_0" }, // hash = b2f5ff47436671b6e533d8dc3614845d
// leading zeroes
new String[] { "168", "server_group_3" }, // hash = 006f52e9102a8d3be2fe5614f42ba989
};
for (String[] testPair : testPairs) {
String key = testPair[0];
String serverGroup = testPair[1];
assertEquals(serverGroup, mapping.getGroupNameForKey(key));
}
// test a random set of values. we should never return null
for (int i = 0; i < 1000; ++i) {
assertNotNull(mapping.getGroupNameForKey("" + i));
}
}
示例2: getShardMappings
import com.mysql.fabric.ShardingType; //导入依赖的package包/类
/**
* Retrieve a set of complete shard mappings. The returned mappings include all information
* available about the mapping.
*
* @param shardMappingIdPattern
* the shard mapping id to retrieve
*/
public FabricStateResponse<Set<ShardMapping>> getShardMappings(String shardMappingIdPattern) throws FabricCommunicationException {
int version = 0;
Object args[] = new Object[] { version, shardMappingIdPattern }; // common to all calls
Response mapsResponse = errorSafeCallMethod(METHOD_DUMP_SHARD_MAPS, args);
// use the lowest ttl of all the calls
long minExpireTimeMillis = System.currentTimeMillis() + TimeUnit.SECONDS.toMillis(mapsResponse.getTtl());
int baseTtl = mapsResponse.getTtl();
// construct the maps
Set<ShardMapping> mappings = new HashSet<ShardMapping>();
for (Map<String, ?> rawMapping : mapsResponse.getResultSet()) {
int mappingId = (Integer) rawMapping.get(FIELD_MAPPING_ID);
ShardingType shardingType = ShardingType.valueOf((String) rawMapping.get(FIELD_TYPE_NAME));
String globalGroupName = (String) rawMapping.get(FIELD_GLOBAL_GROUP_ID);
FabricStateResponse<Set<ShardTable>> tables = getShardTables(mappingId);
FabricStateResponse<Set<ShardIndex>> indices = getShardIndices(mappingId);
if (tables.getExpireTimeMillis() < minExpireTimeMillis) {
minExpireTimeMillis = tables.getExpireTimeMillis();
}
if (indices.getExpireTimeMillis() < minExpireTimeMillis) {
minExpireTimeMillis = indices.getExpireTimeMillis();
}
ShardMapping m = new ShardMappingFactory().createShardMapping(mappingId, shardingType, globalGroupName, tables.getData(), indices.getData());
mappings.add(m);
}
return new FabricStateResponse<Set<ShardMapping>>(mappings, baseTtl, minExpireTimeMillis);
}
示例3: getShardMappings
import com.mysql.fabric.ShardingType; //导入依赖的package包/类
/**
* Retrieve a set of complete shard mappings. The returned mappings include all information
* available about the mapping.
*
* @param shardMappingIdPattern
* the shard mapping id to retrieve
*/
public FabricStateResponse<Set<ShardMapping>> getShardMappings(String shardMappingIdPattern) throws FabricCommunicationException {
int version = 0;
Object args[] = new Object[] { version, shardMappingIdPattern }; // common to all calls
Response mapsResponse = errorSafeCallMethod(METHOD_DUMP_SHARD_MAPS, args);
// use the lowest ttl of all the calls
long minExpireTimeMillis = System.currentTimeMillis() + (1000 * mapsResponse.getTtl());
// construct the maps
Set<ShardMapping> mappings = new HashSet<ShardMapping>();
for (Map rawMapping : mapsResponse.getResultSet()) {
int mappingId = (Integer) rawMapping.get(FIELD_MAPPING_ID);
ShardingType shardingType = ShardingType.valueOf((String) rawMapping.get(FIELD_TYPE_NAME));
String globalGroupName = (String) rawMapping.get(FIELD_GLOBAL_GROUP_ID);
FabricStateResponse<Set<ShardTable>> tables = getShardTables(mappingId);
FabricStateResponse<Set<ShardIndex>> indices = getShardIndices(mappingId);
if (tables.getExpireTimeMillis() < minExpireTimeMillis) {
minExpireTimeMillis = tables.getExpireTimeMillis();
}
if (indices.getExpireTimeMillis() < minExpireTimeMillis) {
minExpireTimeMillis = indices.getExpireTimeMillis();
}
ShardMapping m = new ShardMappingFactory().createShardMapping(mappingId, shardingType, globalGroupName, tables.getData(), indices.getData());
mappings.add(m);
}
return new FabricStateResponse<Set<ShardMapping>>(mappings, minExpireTimeMillis);
}
示例4: getShardMappings
import com.mysql.fabric.ShardingType; //导入依赖的package包/类
/**
* Retrieve a set of complete shard mappings. The returned mappings include all information
* available about the mapping.
* @param shardMappingIdPattern the shard mapping id to retrieve
*/
public FabricStateResponse<Set<ShardMapping>> getShardMappings(String shardMappingIdPattern) throws FabricCommunicationException {
int version = 0;
Object args[] = new Object[] {version, shardMappingIdPattern}; // common to all calls
DumpResponse mapsResponse = callDumpMethod("dump.shard_maps", args);
// use the lowest ttl of all the calls
long minExpireTimeMillis = System.currentTimeMillis() + (1000 * mapsResponse.getTtl());
// construct the maps
Set<ShardMapping> mappings = new HashSet<ShardMapping>();
for (List rawMapping : (List<List>) mapsResponse.getReturnValue()) {
String mappingId = (String)rawMapping.get(0);
ShardingType shardingType = ShardingType.valueOf((String)rawMapping.get(1));
String globalGroupName = (String)rawMapping.get(2);
FabricStateResponse<Set<ShardTable>> tables = getShardTables(mappingId);
FabricStateResponse<Set<ShardIndex>> indices = getShardIndices(mappingId);
if (tables.getExpireTimeMillis() < minExpireTimeMillis)
minExpireTimeMillis = tables.getExpireTimeMillis();
if (indices.getExpireTimeMillis() < minExpireTimeMillis)
minExpireTimeMillis = indices.getExpireTimeMillis();
ShardMapping m = new ShardMappingFactory().createShardMapping(mappingId, shardingType, globalGroupName,
tables.getData(), indices.getData());
mappings.add(m);
}
return new FabricStateResponse<Set<ShardMapping>>(mappings, minExpireTimeMillis);
}
示例5: testHashShardMappingKeyLookup
import com.mysql.fabric.ShardingType; //导入依赖的package包/类
public void testHashShardMappingKeyLookup() throws Exception {
final String globalGroupName = "My global group";
final String lowerBounds[] = new String[] {
/* 0 = */"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA",
/* 1 = */"66666666666666666666666666666666",
/* 2 = */"2809A05A22A4A9C1882A580BCC0AD8A6",
/* 3 = */"DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD" };
// setup the mapping
Set<ShardIndex> shardIndices = new HashSet<ShardIndex>();
int shardId = 0; // shard id's added sequentially increasing from 0
for (String lowerBound : lowerBounds) {
ShardIndex i = new ShardIndex(lowerBound, shardId, "server_group_" + shardId);
shardId++;
shardIndices.add(i);
}
ShardMapping mapping = new HashShardMapping(5000, ShardingType.HASH, globalGroupName, null, shardIndices);
// test lookups mapping of test value to the group it maps to test values are hashed with MD5 and compared to lowerBounds values
String testPairs[][] = new String[][] {
// exact match should be in that shard
new String[] { "Jess", "server_group_2" }, // hash = 2809a05a22a4a9c1882a580bcc0ad8a6
new String[] { "x", "server_group_1" }, // hash = 9dd4e461268c8034f5c8564e155c67a6
new String[] { "X", "server_group_3" }, // hash = 02129bb861061d1a052c592e2dc6b383
new String[] { "Y", "server_group_2" }, // hash = 57cec4137b614c87cb4e24a3d003a3e0
new String[] { "g", "server_group_0" }, // hash = b2f5ff47436671b6e533d8dc3614845d
// leading zeroes
new String[] { "168", "server_group_3" }, // hash = 006f52e9102a8d3be2fe5614f42ba989
};
for (String[] testPair : testPairs) {
String key = testPair[0];
String serverGroup = testPair[1];
assertEquals(serverGroup, mapping.getGroupNameForKey(key));
}
// test a random set of values. we should never return null
for (int i = 0; i < 1000; ++i) {
assertNotNull(mapping.getGroupNameForKey("" + i));
}
}
示例6: testHashShardMappingKeyLookup
import com.mysql.fabric.ShardingType; //导入依赖的package包/类
public void testHashShardMappingKeyLookup() throws Exception {
final String globalGroupName = "My global group";
final String lowerBounds[] = new String[] {
/* 0 = */ "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA",
/* 1 = */ "66666666666666666666666666666666",
/* 2 = */ "2809A05A22A4A9C1882A580BCC0AD8A6",
/* 3 = */ "DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD"};
// setup the mapping
Set<ShardIndex> shardIndices = new HashSet<ShardIndex>();
int shardId = 0; // shard id's added sequentially increasing from 0
for (String lowerBound : lowerBounds) {
ShardIndex i = new ShardIndex(lowerBound, shardId, "server_group_" + shardId);
shardId++;
shardIndices.add(i);
}
ShardMapping mapping = new HashShardMapping("arbitrary-mapping-id", ShardingType.HASH,
globalGroupName, null, shardIndices);
// test lookups
// mapping of test value to the group it maps to
// test values are hashed with MD5 and compared to lowerBounds values
String testPairs[][] = new String[][] {
// exact match should be in that shard
new String[] {"Jess", "server_group_2"}, // hash = 2809a05a22a4a9c1882a580bcc0ad8a6
new String[] {"x", "server_group_1"}, // hash = 9dd4e461268c8034f5c8564e155c67a6
new String[] {"X", "server_group_3"}, // hash = 02129bb861061d1a052c592e2dc6b383
new String[] {"Y", "server_group_2"}, // hash = 57cec4137b614c87cb4e24a3d003a3e0
new String[] {"g", "server_group_0"}, // hash = b2f5ff47436671b6e533d8dc3614845d
// leading zeroes
new String[] {"168", "server_group_3"}, // hash = 006f52e9102a8d3be2fe5614f42ba989
};
for (String[] testPair : testPairs) {
String key = testPair[0];
String serverGroup = testPair[1];
assertEquals(serverGroup, mapping.getGroupNameForKey(key));
}
// test a random set of values. we should never return null
for (int i = 0; i < 1000; ++i) {
assertNotNull(mapping.getGroupNameForKey(""+i));
}
}
示例7: createShardMapping
import com.mysql.fabric.ShardingType; //导入依赖的package包/类
/**
* Create a new shard mapping.
*
* @param type
* method by which data is distributed to shards
* @param globalGroupName
* name of global group of the shard mapping
* @returns id of the new shard mapping.
*/
public int createShardMapping(ShardingType type, String globalGroupName) throws FabricCommunicationException {
Response r = errorSafeCallMethod(METHOD_SHARDING_CREATE_DEFINITION, new Object[] { type.toString(), globalGroupName });
return (Integer) r.getResultSet().get(0).get(FIELD_RESULT);
}
示例8: createShardMapping
import com.mysql.fabric.ShardingType; //导入依赖的package包/类
/**
* Create a new shard mapping.
*
* @param type method by which data is distributed to shards
* @param globalGroupName name of global group of the shard mapping
* @returns id of the new shard mapping.
*/
public int createShardMapping(ShardingType type, String globalGroupName) throws FabricCommunicationException {
return (Integer)errorSafeCallMethod("sharding.create_definition", new Object[] {type.toString(), globalGroupName});
}