DB2ShellScriptBasedStatisticRenovator.java

/*
 * Copyright 2007 - 2017 the original author or authors.
 *
 * Licensed 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 net.sf.jailer.database;


/**
 * Renews the DB2 table statistics for the working-tables
 * by executing a shell-script.
 * 
 * @author Ralf Wisser
 */
public class DB2ShellScriptBasedStatisticRenovator extends ShellScriptBasedStatisticRenovator {

	/**
	 * Constructor.
	 * 
	 * @param scriptInvocation invocation of the script-file
	 */
	public DB2ShellScriptBasedStatisticRenovator(String scriptInvocation) {
		super(scriptInvocation);
	}

	/**
	 * Gets shell-invocation.
	 * 
	 * @param session for execution of SQL-statements
	 * @return shell-invocation
	 */
	protected String getScriptInvocation(Session session) throws Exception {
		int indexOf = session.dbUrl.indexOf("://");
		String dbName;
		if (indexOf >= 0) {
			String s = session.dbUrl.substring(indexOf + 3);
			dbName = s.substring(s.indexOf("/") + 1);
		} else {
			String s = session.dbUrl;
			dbName = s.substring(s.lastIndexOf(":") + 1);
		}
		return super.getScriptInvocation(session) + " " + dbName + " " + session.getSchema();
	}

}