| /** |
| * 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.hadoop.sqoop.util; |
| |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| /** |
| * Some utilities for parsing JDBC URLs which may not be tolerated |
| * by Java's java.net.URL class. |
| * java.net.URL does not support multi:part:scheme:// components, which |
| * virtually all JDBC connect string URLs have. |
| */ |
| public final class JdbcUrl { |
| |
| public static final Log LOG = LogFactory.getLog(JdbcUrl.class.getName()); |
| |
| private JdbcUrl() { |
| } |
| |
| /** |
| * @return the database name from the connect string, which is typically the 'path' |
| * component, or null if we can't. |
| */ |
| public static String getDatabaseName(String connectString) { |
| try { |
| String sanitizedString = null; |
| int schemeEndOffset = connectString.indexOf("://"); |
| if (-1 == schemeEndOffset) { |
| // couldn't find one? try our best here. |
| sanitizedString = "http://" + connectString; |
| LOG.warn("Could not find database access scheme in connect string " + connectString); |
| } else { |
| sanitizedString = "http" + connectString.substring(schemeEndOffset); |
| } |
| |
| URL connectUrl = new URL(sanitizedString); |
| String databaseName = connectUrl.getPath(); |
| if (null == databaseName) { |
| return null; |
| } |
| |
| // This is taken from a 'path' part of a URL, which may have leading '/' |
| // characters; trim them off. |
| while (databaseName.startsWith("/")) { |
| databaseName = databaseName.substring(1); |
| } |
| |
| return databaseName; |
| } catch (MalformedURLException mue) { |
| LOG.error("Malformed connect string URL: " + connectString |
| + "; reason is " + mue.toString()); |
| return null; |
| } |
| } |
| |
| /** |
| * @return the hostname from the connect string, or null if we can't. |
| */ |
| public static String getHostName(String connectString) { |
| try { |
| String sanitizedString = null; |
| int schemeEndOffset = connectString.indexOf("://"); |
| if (-1 == schemeEndOffset) { |
| // couldn't find one? ok, then there's no problem, it should work as a URL. |
| sanitizedString = connectString; |
| } else { |
| sanitizedString = "http" + connectString.substring(schemeEndOffset); |
| } |
| |
| URL connectUrl = new URL(sanitizedString); |
| return connectUrl.getHost(); |
| } catch (MalformedURLException mue) { |
| LOG.error("Malformed connect string URL: " + connectString |
| + "; reason is " + mue.toString()); |
| return null; |
| } |
| } |
| |
| /** |
| * @return the port from the connect string, or -1 if we can't. |
| */ |
| public static int getPort(String connectString) { |
| try { |
| String sanitizedString = null; |
| int schemeEndOffset = connectString.indexOf("://"); |
| if (-1 == schemeEndOffset) { |
| // couldn't find one? ok, then there's no problem, it should work as a URL. |
| sanitizedString = connectString; |
| } else { |
| sanitizedString = "http" + connectString.substring(schemeEndOffset); |
| } |
| |
| URL connectUrl = new URL(sanitizedString); |
| return connectUrl.getPort(); |
| } catch (MalformedURLException mue) { |
| LOG.error("Malformed connect string URL: " + connectString |
| + "; reason is " + mue.toString()); |
| return -1; |
| } |
| } |
| } |