opensource/Chat2DB
1
0
Fork 0
mirror of https://github.com/CodePhiliaX/Chat2DB.git synced 2025-07-28 10:12:39 +08:00
Code Issues Packages Projects Releases Wiki Activity

batch export

Browse Source
This commit is contained in:
SwallowGG
2024-06-21 17:21:28 +08:00
parent 96e6340f8c
commit 9421c3d3f4
31 changed files with 871 additions and 764 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
chat2db-server/chat2db-plugins/chat2db-sqlite/src/main/java/ai/chat2db/plugin/sqlite/SqliteDBManage.java
View File

@ -2,6 +2,7 @@ package ai.chat2db.plugin.sqlite;
import ai.chat2db.spi.DBManage;
import ai.chat2db.spi.jdbc.DefaultDBManage;
import ai.chat2db.spi.model.AsyncContext;
import java.sql.Connection;
import java.sql.ResultSet;
@ -10,31 +11,31 @@ import java.sql.SQLException;
public class SqliteDBManage extends DefaultDBManage implements DBManage {
@Override
public String exportDatabase(Connection connection, String databaseName, String schemaName, boolean containData) throws SQLException {
StringBuilder sqlBuilder = new StringBuilder();
exportTables(connection, databaseName, schemaName,sqlBuilder, containData);
exportViews(connection, databaseName, sqlBuilder);
exportTriggers(connection, sqlBuilder);
return sqlBuilder.toString();
public void exportDatabase(Connection connection, String databaseName, String schemaName, AsyncContext asyncContext) throws SQLException {
exportTables(connection, databaseName, schemaName,asyncContext);
exportViews(connection, databaseName, asyncContext);
exportTriggers(connection, asyncContext);
}
private void exportTables(Connection connection, String databaseName, String schemaName, StringBuilder sqlBuilder, boolean containData) throws SQLException {
private void exportTables(Connection connection, String databaseName, String schemaName, AsyncContext asyncContext) throws SQLException {
try (ResultSet resultSet = connection.getMetaData().getTables(databaseName, null, null, new String[]{"TABLE", "SYSTEM TABLE"})) {
while (resultSet.next()) {
exportTable(connection,schemaName, resultSet.getString("TABLE_NAME"), sqlBuilder, containData);
exportTable(connection,schemaName, resultSet.getString("TABLE_NAME"), asyncContext);
}
}
}
private void exportTable(Connection connection, String schemaName, String tableName, StringBuilder sqlBuilder, boolean containData) throws SQLException {
private void exportTable(Connection connection, String schemaName, String tableName, AsyncContext asyncContext) throws SQLException {
String sql = String.format("SELECT sql FROM sqlite_master WHERE type='table' AND name='%s'", tableName);
try (ResultSet resultSet = connection.createStatement().executeQuery(sql)) {
if (resultSet.next()) {
StringBuilder sqlBuilder = new StringBuilder();
sqlBuilder.append("DROP TABLE IF EXISTS ").append(format(tableName)).append(";").append("\n")
.append(resultSet.getString("sql")).append(";").append("\n");
if (containData) {
exportTableData(connection,schemaName, tableName, sqlBuilder);
asyncContext.write(sqlBuilder.toString());
if (asyncContext.isContainsData()) {
exportTableData(connection,schemaName, tableName, asyncContext);
}
}
}
@ -44,39 +45,43 @@ public class SqliteDBManage extends DefaultDBManage implements DBManage {
return "\""+tableName+"\"";
}
private void exportViews(Connection connection, String databaseName, StringBuilder sqlBuilder) throws SQLException {
private void exportViews(Connection connection, String databaseName, AsyncContext asyncContext) throws SQLException {
try (ResultSet resultSet = connection.getMetaData().getTables(databaseName, null, null, new String[]{"VIEW"})) {
while (resultSet.next()) {
exportView(connection, resultSet.getString("TABLE_NAME"), sqlBuilder);
exportView(connection, resultSet.getString("TABLE_NAME"), asyncContext);
}
}
}
private void exportView(Connection connection, String viewName, StringBuilder sqlBuilder) throws SQLException {
private void exportView(Connection connection, String viewName, AsyncContext asyncContext) throws SQLException {
String sql = String.format("SELECT * FROM sqlite_master WHERE type = 'view' and name='%s';", viewName);
try (ResultSet resultSet = connection.createStatement().executeQuery(sql)) {
if (resultSet.next()) {
StringBuilder sqlBuilder = new StringBuilder();
sqlBuilder.append("DROP VIEW IF EXISTS ").append(format(viewName)).append(";").append("\n")
.append(resultSet.getString("sql")).append(";").append("\n");
asyncContext.write(sqlBuilder.toString());
}
}
}
private void exportTriggers(Connection connection, StringBuilder sqlBuilder) throws SQLException {
private void exportTriggers(Connection connection, AsyncContext asyncContext) throws SQLException {
String sql = "SELECT * FROM sqlite_master WHERE type = 'trigger';";
try (ResultSet resultSet = connection.createStatement().executeQuery(sql)) {
while (resultSet.next()) {
String triggerName = resultSet.getString("name");
exportTrigger(connection, triggerName, sqlBuilder);
exportTrigger(connection, triggerName, asyncContext);
}
}
}
private void exportTrigger(Connection connection, String triggerName, StringBuilder sqlBuilder) throws SQLException {
private void exportTrigger(Connection connection, String triggerName, AsyncContext asyncContext) throws SQLException {
String sql = String.format("SELECT * FROM sqlite_master WHERE type = 'trigger' and name='%s';", triggerName);
try (ResultSet resultSet = connection.createStatement().executeQuery(sql)) {
if (resultSet.next()) {
StringBuilder sqlBuilder = new StringBuilder();
sqlBuilder.append(resultSet.getString("sql")).append("\n");
asyncContext.write(sqlBuilder.toString());
}
}
}