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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.hive.jdbc;
import java.net.URI;
import java.sql.SQLException;
import java.sql.Types;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import io.trino.hive.jdbc.$internal.org.apache.hive.service.cli.thrift.TStatus;
import io.trino.hive.jdbc.$internal.org.apache.hive.service.cli.thrift.TStatusCode;
public class Utils {
/**
* The required prefix for the connection URL.
*/
public static final String URL_PREFIX = "jdbc:hive2://";
/**
* If host is provided, without a port.
*/
public static final String DEFAULT_PORT = "10000";
/**
* Hive's default database name
*/
public static final String DEFAULT_DATABASE = "default";
private static final String URI_JDBC_PREFIX = "jdbc:";
public static class JdbcConnectionParams {
private String host = null;
private int port;
private String dbName = DEFAULT_DATABASE;
private Map hiveConfs = new HashMap();
private Map hiveVars = new HashMap();
private Map sessionVars = new HashMap();
private boolean isEmbeddedMode = false;
public JdbcConnectionParams() {
}
public String getHost() {
return host;
}
public int getPort() {
return port;
}
public String getDbName() {
return dbName;
}
public Map getHiveConfs() {
return hiveConfs;
}
public Map getHiveVars() {
return hiveVars;
}
public boolean isEmbeddedMode() {
return isEmbeddedMode;
}
public Map getSessionVars() {
return sessionVars;
}
public void setHost(String host) {
this.host = host;
}
public void setPort(int port) {
this.port = port;
}
public void setDbName(String dbName) {
this.dbName = dbName;
}
public void setHiveConfs(Map hiveConfs) {
this.hiveConfs = hiveConfs;
}
public void setHiveVars(Map hiveVars) {
this.hiveVars = hiveVars;
}
public void setEmbeddedMode(boolean embeddedMode) {
this.isEmbeddedMode = embeddedMode;
}
public void setSessionVars(Map sessionVars) {
this.sessionVars = sessionVars;
}
}
// Verify success or success_with_info status, else throw SQLException
public static void verifySuccessWithInfo(TStatus status) throws SQLException {
verifySuccess(status, true);
}
// Verify success status, else throw SQLException
public static void verifySuccess(TStatus status) throws SQLException {
verifySuccess(status, false);
}
// Verify success and optionally with_info status, else throw SQLException
public static void verifySuccess(TStatus status, boolean withInfo) throws SQLException {
if ((status.getStatusCode() != TStatusCode.SUCCESS_STATUS) &&
(withInfo && (status.getStatusCode() != TStatusCode.SUCCESS_WITH_INFO_STATUS))) {
throw new SQLException(status.getErrorMessage(),
status.getSqlState(), status.getErrorCode());
}
}
/**
* Parse JDBC connection URL
* The new format of the URL is jdbc:hive2://:/dbName;sess_var_list?hive_conf_list#hive_var_list
* where the optional sess, conf and var lists are semicolon separated = pairs. As before, if the
* host/port is not specified, it the driver runs an embedded hive.
* examples -
* jdbc:hive2://ubuntu:11000/db2?hive.cli.conf.printheader=true;hive.exec.mode.local.auto.inputbytes.max=9999#stab=salesTable;icol=customerID
* jdbc:hive2://?hive.cli.conf.printheader=true;hive.exec.mode.local.auto.inputbytes.max=9999#stab=salesTable;icol=customerID
* jdbc:hive2://ubuntu:11000/db2;user=foo;password=bar
*
* Connect to http://server:10001/hs2, with specified basicAuth credentials and initial database:
* jdbc:hive2://server:10001/db;user=foo;password=bar?hive.server2.transport.mode=http;hive.server2.thrift.http.path=hs2
*
* Note that currently the session properties are not used.
*
* @param uri
* @return
*/
public static JdbcConnectionParams parseURL(String uri) throws IllegalArgumentException {
JdbcConnectionParams connParams = new JdbcConnectionParams();
if (!uri.startsWith(URL_PREFIX)) {
throw new IllegalArgumentException("Bad URL format: Missing prefix " + URL_PREFIX);
}
// For URLs with no other configuration
// Don't parse them, but set embedded mode as true
if (uri.equalsIgnoreCase(URL_PREFIX)) {
connParams.setEmbeddedMode(true);
return connParams;
}
URI jdbcURI = URI.create(uri.substring(URI_JDBC_PREFIX.length()));
// Check to prevent unintentional use of embedded mode. A missing "/"
// to separate the 'path' portion of URI can result in this.
// The missing "/" common typo while using secure mode, eg of such url -
// jdbc:hive2://localhost:10000;principal=hive/[email protected]
if((jdbcURI.getAuthority() != null) && (jdbcURI.getHost()==null)) {
throw new IllegalArgumentException("Bad URL format. Hostname not found "
+ " in authority part of the url: " + jdbcURI.getAuthority()
+ ". Are you missing a '/' after the hostname ?");
}
connParams.setHost(jdbcURI.getHost());
if (connParams.getHost() == null) {
connParams.setEmbeddedMode(true);
} else {
int port = jdbcURI.getPort();
if (port == -1) {
port = Integer.valueOf(DEFAULT_PORT);
}
connParams.setPort(port);
}
// key=value pattern
Pattern pattern = Pattern.compile("([^;]*)=([^;]*)[;]?");
// dbname and session settings
String sessVars = jdbcURI.getPath();
if ((sessVars != null) && !sessVars.isEmpty()) {
String dbName = "";
// removing leading '/' returned by getPath()
sessVars = sessVars.substring(1);
if (!sessVars.contains(";")) {
// only dbname is provided
dbName = sessVars;
} else {
// we have dbname followed by session parameters
dbName = sessVars.substring(0, sessVars.indexOf(';'));
sessVars = sessVars.substring(sessVars.indexOf(';')+1);
if (sessVars != null) {
Matcher sessMatcher = pattern.matcher(sessVars);
while (sessMatcher.find()) {
if (connParams.getSessionVars().put(sessMatcher.group(1), sessMatcher.group(2)) != null) {
throw new IllegalArgumentException("Bad URL format: Multiple values for property " + sessMatcher.group(1));
}
}
}
}
if (!dbName.isEmpty()) {
connParams.setDbName(dbName);
}
}
// parse hive conf settings
String confStr = jdbcURI.getQuery();
if (confStr != null) {
Matcher confMatcher = pattern.matcher(confStr);
while (confMatcher.find()) {
connParams.getHiveConfs().put(confMatcher.group(1), confMatcher.group(2));
}
}
// parse hive var settings
String varStr = jdbcURI.getFragment();
if (varStr != null) {
Matcher varMatcher = pattern.matcher(varStr);
while (varMatcher.find()) {
connParams.getHiveVars().put(varMatcher.group(1), varMatcher.group(2));
}
}
return connParams;
}
/**
* Takes a version string delmited by '.' and '-' characters
* and returns a partial version.
*
* @param fullVersion
* version string.
* @param tokenPosition
* position of version string to get starting at 0. eg, for a X.x.xxx
* string, 0 will return the major version, 1 will return minor
* version.
* @return version part, or -1 if version string was malformed.
*/
static int getVersionPart(String fullVersion, int position) {
int version = -1;
try {
String[] tokens = fullVersion.split("[\\.-]"); //$NON-NLS-1$
if (tokens != null && tokens.length > 1 && tokens[position] != null) {
version = Integer.parseInt(tokens[position]);
}
} catch (Exception e) {
version = -1;
}
return version;
}
}
