| 1 | /* |
| 2 | |
| 3 | Derby - Class org.apache.derby.impl.tools.ij.Main |
| 4 | |
| 5 | Copyright 1997, 2004 The Apache Software Foundation or its licensors, as applicable. |
| 6 | |
| 7 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | you may not use this file except in compliance with the License. |
| 9 | You may obtain a copy of the License at |
| 10 | |
| 11 | http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | |
| 13 | Unless required by applicable law or agreed to in writing, software |
| 14 | distributed under the License is distributed on an "AS IS" BASIS, |
| 15 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | See the License for the specific language governing permissions and |
| 17 | limitations under the License. |
| 18 | |
| 19 | */ |
| 20 | |
| 21 | package org.apache.derby.impl.tools.ij; |
| 22 | |
| 23 | import org.apache.derby.tools.JDBCDisplayUtil; |
| 24 | import org.apache.derby.iapi.tools.i18n.LocalizedResource; |
| 25 | import org.apache.derby.iapi.tools.i18n.LocalizedInput; |
| 26 | import org.apache.derby.iapi.tools.i18n.LocalizedOutput; |
| 27 | |
| 28 | import java.io.FileInputStream; |
| 29 | import java.io.BufferedInputStream; |
| 30 | import java.io.BufferedReader; |
| 31 | import java.io.FileOutputStream; |
| 32 | import java.io.FileNotFoundException; |
| 33 | import java.io.InputStream; |
| 34 | import java.io.Reader; |
| 35 | import java.io.PrintStream; |
| 36 | import java.io.UnsupportedEncodingException; |
| 37 | import java.io.IOException; |
| 38 | |
| 39 | import java.sql.Connection; |
| 40 | import java.sql.SQLException; |
| 41 | |
| 42 | import java.util.*; |
| 43 | |
| 44 | /** |
| 45 | * This is the controller for ij. It uses two parsers: |
| 46 | * one to grab the next statement, and another to |
| 47 | * see if it is an ij command, and if so execute it. |
| 48 | * If it is not an ij command, it is treated as a JSQL |
| 49 | * statement and executed against the current connection. |
| 50 | * ijParser controls the current connection, and so contains |
| 51 | * all of the state information for executing JSQL statements. |
| 52 | * <p> |
| 53 | * This was written to facilitate a test harness for language |
| 54 | * functionality tests. |
| 55 | * |
| 56 | * @author ames |
| 57 | * |
| 58 | */ |
| 59 | public class Main { |
| 60 | public LocalizedOutput out; |
| 61 | public utilMain utilInstance; |
| 62 | public Class langUtilClass; |
| 63 | |
| 64 | |
| 65 | |
| 66 | /** |
| 67 | * ij can be used directly on a shell command line through |
| 68 | * its main program. |
| 69 | * @param args allows 1 file name to be specified, from which |
| 70 | * input will be read; if not specified, stdin is used. |
| 71 | */ |
| 72 | public static void main(String[] args) |
| 73 | throws IOException |
| 74 | { |
| 75 | mainCore(args, new Main(true)); |
| 76 | } |
| 77 | |
| 78 | public static void mainCore(String[] args, Main main) |
| 79 | throws IOException |
| 80 | { |
| 81 | LocalizedInput in = null; |
| 82 | InputStream in1 = null; |
| 83 | Main me; |
| 84 | String file; |
| 85 | String inputResourceName; |
| 86 | boolean gotProp; |
| 87 | Properties connAttributeDefaults = null; |
| 88 | |
| 89 | LocalizedResource langUtil = LocalizedResource.getInstance(); |
| 90 | LocalizedOutput out = langUtil.getNewOutput(System.out); |
| 91 | |
| 92 | // Validate arguments, check for --help. |
| 93 | if (util.invalidArgs(args)) { |
| 94 | util.Usage(out); |
| 95 | return; |
| 96 | } |
| 97 | |
| 98 | // load the property file if specified |
| 99 | gotProp = util.getPropertyArg(args); |
| 100 | |
| 101 | // get the default connection attributes |
| 102 | connAttributeDefaults = util.getConnAttributeArg(args); |
| 103 | |
| 104 | // readjust output to derby.ui.locale and derby.ui.codeset if |
| 105 | // they were loaded from a property file. |
| 106 | langUtil.init(); |
| 107 | out = langUtil.getNewOutput(System.out); |
| 108 | main.initAppUI(); |
| 109 | |
| 110 | file = util.getFileArg(args); |
| 111 | inputResourceName = util.getInputResourceNameArg(args); |
| 112 | if (inputResourceName != null) { |
| 113 | in = langUtil.getNewInput(util.getResourceAsStream(inputResourceName)); |
| 114 | if (in == null) { |
| 115 | out.println(langUtil.getTextMessage("IJ_IjErroResoNo",inputResourceName)); |
| 116 | return; |
| 117 | } |
| 118 | } else if (file == null) { |
| 119 | in = langUtil.getNewInput(System.in); |
| 120 | out.flush(); |
| 121 | } else { |
| 122 | try { |
| 123 | in1 = new FileInputStream(file); |
| 124 | if (in1 != null) { |
| 125 | in1 = new BufferedInputStream(in1, utilMain.BUFFEREDFILESIZE); |
| 126 | in = langUtil.getNewInput(in1); |
| 127 | } |
| 128 | } catch (FileNotFoundException e) { |
| 129 | if (Boolean.getBoolean("ij.searchClassPath")) { |
| 130 | in = langUtil.getNewInput(util.getResourceAsStream(file)); |
| 131 | } |
| 132 | if (in == null) { |
| 133 | out.println(langUtil.getTextMessage("IJ_IjErroFileNo",file)); |
| 134 | return; |
| 135 | } |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | String outFile = util.getSystemProperty("ij.outfile"); |
| 140 | if (outFile != null && outFile.length()>0) { |
| 141 | LocalizedOutput oldOut = out; |
| 142 | try { |
| 143 | out = langUtil.getNewOutput(new FileOutputStream(outFile)); |
| 144 | } |
| 145 | catch (IOException ioe) { |
| 146 | oldOut.println(langUtil.getTextMessage("IJ_IjErroUnabTo",outFile)); |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | // the old property name is deprecated... |
| 151 | String maxDisplayWidth = util.getSystemProperty("maximumDisplayWidth"); |
| 152 | if (maxDisplayWidth==null) |
| 153 | maxDisplayWidth = util.getSystemProperty("ij.maximumDisplayWidth"); |
| 154 | if (maxDisplayWidth != null && maxDisplayWidth.length() > 0) { |
| 155 | try { |
| 156 | int maxWidth = Integer.parseInt(maxDisplayWidth); |
| 157 | JDBCDisplayUtil.setMaxDisplayWidth(maxWidth); |
| 158 | } |
| 159 | catch (NumberFormatException nfe) { |
| 160 | out.println(langUtil.getTextMessage("IJ_IjErroMaxiVa", maxDisplayWidth)); |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | /* Use the main parameter to get to |
| 165 | * a new Main that we can use. |
| 166 | * (We can't do the work in Main(out) |
| 167 | * until after we do all of the work above |
| 168 | * us in this method. |
| 169 | */ |
| 170 | me = main.getMain(out); |
| 171 | |
| 172 | /* Let the processing begin! */ |
| 173 | me.go(in, out, connAttributeDefaults); |
| 174 | in.close(); out.close(); |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * Get the right Main (according to |
| 179 | * the JDBC version. |
| 180 | * |
| 181 | * @return The right main (according to the JDBC version). |
| 182 | */ |
| 183 | public Main getMain(LocalizedOutput out) |
| 184 | { |
| 185 | return new Main(out); |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Get the right utilMain (according to |
| 190 | * the JDBC version. |
| 191 | * |
| 192 | * @return The right utilMain (according to the JDBC version). |
| 193 | */ |
| 194 | public utilMain getutilMain(int numConnections, LocalizedOutput out) |
| 195 | { |
| 196 | return new utilMain(numConnections, out); |
| 197 | } |
| 198 | |
| 199 | /** |
| 200 | Give a shortcut to go on the utilInstance so |
| 201 | we don't expose utilMain. |
| 202 | */ |
| 203 | public void go(LocalizedInput in, LocalizedOutput out , |
| 204 | Properties connAttributeDefaults) |
| 205 | { |
| 206 | LocalizedInput[] inA = { in } ; |
| 207 | utilInstance.go(inA, out,connAttributeDefaults); |
| 208 | } |
| 209 | |
| 210 | public void go(InputStream in, PrintStream out, |
| 211 | Properties connAttributeDefaults) |
| 212 | { |
| 213 | initAppUI(); |
| 214 | LocalizedResource langUtil = LocalizedResource.getInstance(); |
| 215 | go(langUtil.getNewInput(in), langUtil.getNewOutput(out), |
| 216 | connAttributeDefaults); |
| 217 | } |
| 218 | |
| 219 | /** |
| 220 | * create an ij tool waiting to be given input and output streams. |
| 221 | */ |
| 222 | public Main() { |
| 223 | this(null); |
| 224 | } |
| 225 | |
| 226 | public Main(LocalizedOutput out) { |
| 227 | if (out!=null) { |
| 228 | this.out = out; |
| 229 | } else { |
| 230 | this.out = LocalizedResource.getInstance().getNewOutput(System.out); |
| 231 | } |
| 232 | utilInstance = getutilMain(1, this.out); |
| 233 | } |
| 234 | |
| 235 | /** |
| 236 | * This constructor is only used so that we |
| 237 | * can get to the right Main based on the |
| 238 | * JDBC version. We don't do any work in |
| 239 | * this constructor and we only use this |
| 240 | * object to get to the right Main via |
| 241 | * getMain(). |
| 242 | */ |
| 243 | public Main(boolean trash) |
| 244 | { |
| 245 | } |
| 246 | public void initAppUI(){ |
| 247 | //To fix a problem in the AppUI implementation, a reference to the AppUI class is |
| 248 | //maintained by this tool. Without this reference, it is possible for the |
| 249 | //AppUI class to be garbage collected and the initialization values lost. |
| 250 | //langUtilClass = LocalizedResource.class; |
| 251 | |
| 252 | // adjust the application in accordance with derby.ui.locale and derby.ui.codeset |
| 253 | LocalizedResource.getInstance(); |
| 254 | } |
| 255 | } |