import com.mysql.fabric.ShardMappingFactory; //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);
}
 

import com.mysql.fabric.ShardMappingFactory; //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);
}
 

import com.mysql.fabric.ShardMappingFactory; //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);
}