All Downloads are FREE. Search and download functionalities are using the official Maven repository.
Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $
You can buy this project and download/modify it how often you want.
com.dtsx.astra.sdk.AstraDBAdmin Maven / Gradle / Ivy
package com.dtsx.astra.sdk;
import com.dtsx.astra.sdk.db.AstraDBOpsClient;
import com.dtsx.astra.sdk.db.DbOpsClient;
import com.dtsx.astra.sdk.db.domain.CloudProviderType;
import com.dtsx.astra.sdk.db.domain.Database;
import com.dtsx.astra.sdk.db.domain.DatabaseCreationRequest;
import com.dtsx.astra.sdk.db.domain.DatabaseStatusType;
import com.dtsx.astra.sdk.db.exception.DatabaseNotFoundException;
import com.dtsx.astra.sdk.utils.ApiLocator;
import com.dtsx.astra.sdk.utils.Assert;
import com.dtsx.astra.sdk.utils.AstraEnvironment;
import com.dtsx.astra.sdk.utils.AstraRc;
import io.stargate.sdk.json.ApiClient;
import lombok.Getter;
import lombok.NonNull;
import lombok.extern.slf4j.Slf4j;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpClient.Version;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.http.HttpResponse.BodyHandlers;
import java.time.Duration;
import java.util.List;
import java.util.Optional;
import java.util.UUID;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import static io.stargate.sdk.utils.AnsiUtils.green;
import static io.stargate.sdk.utils.Utils.readEnvVariable;
/**
* Astra Vector Client, Native experience for Vector Database.
*/
@Slf4j
public class AstraDBAdmin {
/** Default timeout for connection. */
public static final int CONNECT_TIMEOUT_SECONDS = 20;
/**
* Free tier.
*/
public static final CloudProviderType FREE_TIER_CLOUD = CloudProviderType.GCP;
/**
* Free tier.
*/
public static final String FREE_TIER_CLOUD_REGION = "us-east1";
/**
* Token header param
*/
public static final String TOKEN_HEADER_PARAM = "X-Cassandra-Token";
/**
* Technical Keyspace name.
*/
public static final String DEFAULT_KEYSPACE = "default_keyspace";
/**
* First Level of the API will
*/
final AstraDBOpsClient devopsDbClient;
/**
* Environment
*/
final AstraEnvironment env;
/**
* Token required to initialize the clients
*/
@Getter
final String token;
/**
* JDK HttpClient
*/
final HttpClient httpClient;
/**
* Configuration token
*/
static String astraConfigToken;
/*
* Load from environment.
*/
static {
new AstraRc().getSectionKey(
AstraRc.ASTRARC_DEFAULT,
AstraRc.ASTRA_DB_APPLICATION_TOKEN).ifPresent(s -> astraConfigToken = s);
// lookup env variable
readEnvVariable(AstraRc.ASTRA_DB_APPLICATION_TOKEN).ifPresent(s -> astraConfigToken = s);
}
/**
* Load with token from environment
*/
public AstraDBAdmin() {
this(astraConfigToken);
}
/**
* Default constructor.
*
* @param token
* a token is all you need
*/
public AstraDBAdmin(String token) {
this(token, AstraEnvironment.PROD);
}
/**
* Second constructor for non-production environments.
*
* @param token
* token
* @param env
* target environments
*/
public AstraDBAdmin(String token, AstraEnvironment env) {
this.env = env;
this.token = token;
this.devopsDbClient = new AstraDBOpsClient(token, env);
this.httpClient = HttpClient.newBuilder()
.version(Version.HTTP_2)
.connectTimeout(Duration.ofSeconds(CONNECT_TIMEOUT_SECONDS))
.build();
}
/**
* List active vector databases.
*
* @return
* active devops databases.
*/
public Stream findAllDatabases() {
return devopsDbClient
.findAllNonTerminated()
.filter(db -> db.getInfo().getDbType() != null);
}
/**
* Create Db in free Tier.
*
* @param name
* database name
* @return
* database identifier
*/
public UUID createDatabase(@NonNull String name) {
return createDatabase(name, FREE_TIER_CLOUD, FREE_TIER_CLOUD_REGION);
}
/**
* Create Db in free Tier.
*
* @param name
* database name
* @return
* if the db has been deleted
*/
public boolean deleteDatabase(@NonNull String name) {
Optional opDb = findDatabaseByName(name).findFirst();
opDb.ifPresent(db -> devopsDbClient.database(db.getId()).delete());
return opDb.isPresent();
}
/**
* Create a database with the full definition.
*
* @param name
* database name
* @param cloud
* cloud provider
* @param cloudRegion
* cloud region
* @return
* database uid
*/
public UUID createDatabase(@NonNull String name, @NonNull CloudProviderType cloud, @NonNull String cloudRegion) {
Optional optDb = findDatabaseByName(name).findFirst();
// Handling all cases for the user
if (optDb.isPresent()) {
Database db = optDb.get();
switch(db.getStatus()) {
case ACTIVE:
log.info("Database " + green("{}") + " already exists and is ACTIVE.", name);
return UUID.fromString(db.getId());
case MAINTENANCE:
case INITIALIZING:
case PENDING:
case RESUMING:
log.info("Database {} already exists and is in {} state, waiting for it to be ACTIVE", name, db.getStatus());
waitForDatabase(devopsDbClient.database(db.getId()));
return UUID.fromString(db.getId());
case HIBERNATED:
log.info("Database {} is in {} state, resuming...", name, db.getStatus());
resumeDb(db);
waitForDatabase(devopsDbClient.database(db.getId()));
return UUID.fromString(db.getId());
default:
throw new IllegalStateException("Database already exist but cannot be activate");
}
}
// Database is not present, creating and waiting for it to be active.
UUID newDbId = UUID.fromString(devopsDbClient.create(DatabaseCreationRequest.builder()
.name(name)
.cloudProvider(cloud)
.cloudRegion(cloudRegion)
.keyspace(DEFAULT_KEYSPACE)
.withVector().build()));
log.info("Database {} is starting (id={}): it will take about a minute please wait...", name, newDbId);
waitForDatabase(devopsDbClient.database(newDbId.toString()));
return newDbId;
}
/**
* Retrieve list of all Databases of the account and filter on name
*
* @param name
* a database name
* @return
* list of db matching the criteria
*/
public Stream findDatabaseByName(String name) {
Assert.hasLength(name, "Database name");
return findAllDatabases().filter(db->name.equals(db.getInfo().getName()));
}
/**
* Check if a database exists.
*
* @param name
* a database name
* @return
* if the database exists
*/
public boolean isDatabaseExists(String name) {
return findDatabaseByName(name).findFirst().isPresent();
}
/**
* Find a database from its id.
*
* @param id
* a database name
* @return
* list of db matching the criteria
*/
public Optional findDatabaseById(@NonNull UUID id) {
Assert.notNull(id, "Database identifier should not be null");
return devopsDbClient.findById(id.toString());
}
/**
* Access the database functions.
*
* @param databaseName
* database name
* @return
* database client
*/
public AstraDB database(@NonNull String databaseName) {
List dbs = findDatabaseByName(databaseName).collect(Collectors.toList());
if (dbs.isEmpty()) {
throw new DatabaseNotFoundException(databaseName);
}
if (dbs.size() > 1) {
throw new IllegalStateException("More than one database exists with the same name, use id.");
}
return database(UUID.fromString(dbs.get(0).getId()));
}
// --------------------
// == Sub resources ==
// --------------------
/**
* Access the database functions.
*
* @param databaseId
* database identifier
* @return
* database client
*/
public AstraDB database(UUID databaseId) {
return new AstraDB(token, databaseId, null, env, AstraDBAdmin.DEFAULT_KEYSPACE);
}
/**
* Wait for db to have proper status.
*
* @param dbc
* database client
*/
@SuppressWarnings("java:S2925")
private void waitForDatabase(DbOpsClient dbc) {
long top = System.currentTimeMillis();
while(DatabaseStatusType.ACTIVE != getStatus(dbc) && ((System.currentTimeMillis()-top) < 1000L*180)) {
try {
Thread.sleep( 5000);
System.out.print("■");
System.out.flush();
} catch (InterruptedException e) {
log.warn("Interrupted {}",e.getMessage());
Thread.currentThread().interrupt();
}
}
if (getStatus(dbc) != DatabaseStatusType.ACTIVE) {
throw new IllegalStateException("Database is not in expected state after timeouts");
}
}
/**
* Retrieve the status of a database.
* @param dbc
* database client
* @return
* database status
*/
private DatabaseStatusType getStatus(DbOpsClient dbc) {
return dbc.find().orElseThrow(() -> new DatabaseNotFoundException(dbc.getDatabaseId())).getStatus();
}
/**
* Database name.
*
* @param db
* database name
*/
private void resumeDb(Database db) {
try {
// Compute Endpoint for the Keyspaces
String endpoint = ApiLocator.getApiRestEndpoint(db.getId(), db.getInfo().getRegion()) + "/v2/schemas/keyspace";
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create(endpoint))
.timeout(Duration.ofSeconds(20))
.header("Content-Type", "application/json")
.header(TOKEN_HEADER_PARAM, token)
.GET()
.build();
HttpResponse response = httpClient.send(request, BodyHandlers.ofString());
if (response.statusCode() == 500) {
throw new IllegalStateException("Cannot resume database, please check your account");
}
} catch (InterruptedException e) {
log.warn("Interrupted {}",e.getMessage());
Thread.currentThread().interrupt();
} catch (Exception e) {
log.warn("Resuming request might have failed, please check {}}",e.getMessage());
}
}
/**
* Access database functions.
*
* @param databaseName
* database name
* @return
* database client
*/
public ApiClient getRawJsonApiClient(@NonNull String databaseName) {
return database(databaseName).getApiClient();
}
/**
* Access database functions.
*
* @param databaseId
* database identifier
* @return
* database client
*/
public ApiClient getApiClient(@NonNull UUID databaseId) {
return database(databaseId).getApiClient();
}
/**
* Access the devops client.
*
* @return
* devops client.
*/
public AstraDBOpsClient getRawDevopsApiClient() {
return this.devopsDbClient;
}
}
