| /* |
| * 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.knox.gateway.shell.commands; |
| |
| import java.awt.event.KeyEvent; |
| import java.awt.event.KeyListener; |
| import java.sql.Connection; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| import java.util.List; |
| import java.util.Map; |
| |
| import javax.swing.Box; |
| import javax.swing.JLabel; |
| import javax.swing.JOptionPane; |
| import javax.swing.JScrollPane; |
| import javax.swing.JTextArea; |
| |
| import org.apache.knox.gateway.shell.CredentialCollector; |
| import org.apache.knox.gateway.shell.KnoxDataSource; |
| import org.apache.knox.gateway.shell.table.KnoxShellTable; |
| import org.codehaus.groovy.tools.shell.Groovysh; |
| |
| public class SelectCommand extends AbstractSQLCommandSupport implements KeyListener { |
| |
| private static final String KNOXDATASOURCE = "__knoxdatasource"; |
| private JTextArea sqlField; |
| private List<String> sqlHistory; |
| private int historyIndex = -1; |
| |
| public SelectCommand(Groovysh shell) { |
| super(shell, ":SQL", ":sql"); |
| } |
| |
| @Override |
| public void keyPressed(KeyEvent event) { |
| int code = event.getKeyCode(); |
| boolean setFromHistory = false; |
| if (sqlHistory != null && !sqlHistory.isEmpty()) { |
| if (historyIndex == -1) { |
| historyIndex = sqlHistory.size() + 1; |
| } |
| if (code == KeyEvent.VK_KP_UP || |
| code == KeyEvent.VK_UP) { |
| if (historyIndex > 0) { |
| historyIndex -= 1; |
| } |
| setFromHistory = true; |
| } |
| else if (code == KeyEvent.VK_KP_DOWN || |
| code == KeyEvent.VK_DOWN) { |
| if (historyIndex < sqlHistory.size() - 1) { |
| historyIndex += 1; |
| setFromHistory = true; |
| } |
| } |
| if (setFromHistory) { |
| sqlField.setText(sqlHistory.get(historyIndex)); |
| sqlField.invalidate(); |
| } |
| } |
| } |
| |
| @Override |
| public void keyReleased(KeyEvent event) { |
| } |
| |
| @Override |
| public void keyTyped(KeyEvent event) { |
| } |
| |
| @SuppressWarnings({"unchecked", "PMD.CloseResource"}) |
| @Override |
| public Object execute(List<String> args) { |
| boolean ok = false; |
| String sql = ""; |
| String bindVariableName = null; |
| KnoxShellTable table = null; |
| |
| if (!args.isEmpty()) { |
| bindVariableName = getBindingVariableNameForResultingTable(args); |
| } |
| |
| String dsName = (String) getVariables().get(KNOXDATASOURCE); |
| @SuppressWarnings("unchecked") |
| Map<String, KnoxDataSource> dataSources = getDataSources(); |
| KnoxDataSource ds = null; |
| if (dsName == null || dsName.isEmpty()) { |
| if (dataSources == null || dataSources.isEmpty()) { |
| return "please configure a datasource with ':datasources add {name} {connectStr} {driver} {authntype: none|basic}'."; |
| } |
| else if (dataSources.size() == 1) { |
| dsName = (String) dataSources.keySet().toArray()[0]; |
| } |
| else { |
| return "mulitple datasources configured. please disambiguate with ':datasources select {name}'."; |
| } |
| } |
| |
| sqlHistory = getSQLHistory(dsName); |
| historyIndex = (sqlHistory != null && !sqlHistory.isEmpty()) ? sqlHistory.size() - 1 : -1; |
| |
| ds = dataSources.get(dsName); |
| if (ds != null) { |
| JLabel jl = new JLabel("Query: "); |
| sqlField = new JTextArea(5,40); |
| sqlField.addKeyListener(this); |
| sqlField.setLineWrap(true); |
| JScrollPane scrollPane = new JScrollPane(sqlField); |
| Box box = Box.createHorizontalBox(); |
| box.add(jl); |
| box.add(scrollPane); |
| |
| // JDK-5018574 : Unable to set focus to another component in JOptionPane |
| SwingUtils.workAroundFocusIssue(sqlField); |
| |
| int x = JOptionPane.showConfirmDialog(null, box, |
| "SQL Query Input", JOptionPane.OK_CANCEL_OPTION); |
| |
| if (x == JOptionPane.OK_OPTION) { |
| ok = true; |
| sql = sqlField.getText(); |
| addToSQLHistory(dsName, sql); |
| historyIndex = -1; |
| } |
| |
| //KnoxShellTable.builder().jdbc().connect("jdbc:derby:codejava/webdb1").driver("org.apache.derby.jdbc.EmbeddedDriver").username("lmccay").pwd("xxxx").sql("SELECT * FROM book"); |
| try { |
| if (ok) { |
| System.out.println(sql); |
| try { |
| Connection conn = getConnectionFromSession(ds); |
| if (conn == null || conn.isClosed()) { |
| String username = null; |
| char[] pass = null; |
| if (ds.getAuthnType().equalsIgnoreCase("basic")) { |
| CredentialCollector dlg = login(); |
| username = dlg.name(); |
| pass = dlg.chars(); |
| } |
| conn = getConnection(ds, username, new String(pass)); |
| } |
| try (Statement statement = conn.createStatement()) { |
| if (statement.execute(sql)) { |
| try (ResultSet resultSet = statement.getResultSet()) { |
| table = KnoxShellTable.builder().jdbc().resultSet(resultSet); |
| } |
| } |
| } |
| } |
| catch (SQLException e) { |
| System.out.println("SQL Exception encountered... " + e.getMessage()); |
| } |
| } |
| } |
| catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| else { |
| return "please select a datasource via ':datasources select {name}'."; |
| } |
| if (table != null && bindVariableName != null) { |
| getVariables().put(bindVariableName, table); |
| } |
| return table; |
| } |
| } |