Package org.mybatis.generator.api

Source Code of org.mybatis.generator.api.ShellRunner

/*
*  Copyright 2006 The Apache Software Foundation
*
*  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 org.mybatis.generator.api;

import static org.mybatis.generator.internal.util.messages.Messages.getString;

import java.io.File;
import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;

import org.mybatis.generator.config.Configuration;
import org.mybatis.generator.config.xml.ConfigurationParser;
import org.mybatis.generator.exception.InvalidConfigurationException;
import org.mybatis.generator.exception.XMLParserException;
import org.mybatis.generator.internal.DefaultShellCallback;
import org.mybatis.generator.logging.LogFactory;

/**
* This class allows the code generator to be run from the command line.
*
* @author Jeff Butler
*/
public class ShellRunner {
  private static final String CONFIG_FILE = "-configfile"; //$NON-NLS-1$
  private static final String OVERWRITE = "-overwrite"; //$NON-NLS-1$
  private static final String CONTEXT_IDS = "-contextids"; //$NON-NLS-1$
  private static final String TABLES = "-tables"; //$NON-NLS-1$
  private static final String VERBOSE = "-verbose"; //$NON-NLS-1$
  private static final String FORCE_JAVA_LOGGING = "-forceJavaLogging"; //$NON-NLS-1$
  private static final String HELP_1 = "-?"; //$NON-NLS-1$
  private static final String HELP_2 = "-h"; //$NON-NLS-1$

  public static void main(String[] args) {
    if (args.length == 0) {
      usage();
      System.exit(0);
      return; // only to satisfy compiler, never returns
    }

    Map<String, String> arguments = parseCommandLine(args);

    if (arguments.containsKey(HELP_1)) {
      usage();
      System.exit(0);
      return; // only to satisfy compiler, never returns
    }

    if (!arguments.containsKey(CONFIG_FILE)) {
      writeLine(getString("RuntimeError.0")); //$NON-NLS-1$
      return;
    }

    List<String> warnings = new ArrayList<String>();

    String configfile = arguments.get(CONFIG_FILE);
    File configurationFile = new File(configfile);
    if (!configurationFile.exists()) {
      writeLine(getString("RuntimeError.1", configfile)); //$NON-NLS-1$
      return;
    }

    Set<String> fullyqualifiedTables = new HashSet<String>();
    if (arguments.containsKey(TABLES)) {
      StringTokenizer st = new StringTokenizer(arguments.get(TABLES), ","); //$NON-NLS-1$
      while (st.hasMoreTokens()) {
        String s = st.nextToken().trim();
        if (s.length() > 0) {
          fullyqualifiedTables.add(s);
        }
      }
    }

    Set<String> contexts = new HashSet<String>();
    if (arguments.containsKey(CONTEXT_IDS)) {
      StringTokenizer st = new StringTokenizer(arguments.get(CONTEXT_IDS), ","); //$NON-NLS-1$
      while (st.hasMoreTokens()) {
        String s = st.nextToken().trim();
        if (s.length() > 0) {
          contexts.add(s);
        }
      }
    }

    try {
      ConfigurationParser cp = new ConfigurationParser(warnings);
      Configuration config = cp.parseConfiguration(configurationFile);

      DefaultShellCallback shellCallback = new DefaultShellCallback(arguments.containsKey(OVERWRITE));

      MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, shellCallback, warnings);

      ProgressCallback progressCallback = arguments.containsKey(VERBOSE) ? new VerboseProgressCallback() : null;

      myBatisGenerator.generate(progressCallback, contexts, fullyqualifiedTables);

    } catch (XMLParserException e) {
      writeLine(getString("Progress.3")); //$NON-NLS-1$
      writeLine();
      for (String error : e.getErrors()) {
        writeLine(error);
      }

      return;
    } catch (SQLException e) {
      e.printStackTrace();
      return;
    } catch (IOException e) {
      e.printStackTrace();
      return;
    } catch (InvalidConfigurationException e) {
      writeLine(getString("Progress.16")); //$NON-NLS-1$
      for (String error : e.getErrors()) {
        writeLine(error);
      }
      return;
    } catch (InterruptedException e) {
      // ignore (will never happen with the DefaultShellCallback)
      ;
    }

    for (String warning : warnings) {
      writeLine(warning);
    }

    if (warnings.size() == 0) {
      writeLine(getString("Progress.4")); //$NON-NLS-1$
    } else {
      writeLine();
      writeLine(getString("Progress.5")); //$NON-NLS-1$
    }
  }

  private static void usage() {
    String lines = getString("Usage.Lines"); //$NON-NLS-1$
    int iLines = Integer.parseInt(lines);
    for (int i = 0; i < iLines; i++) {
      String key = "Usage." + i; //$NON-NLS-1$
      writeLine(getString(key));
    }
  }

  private static void writeLine(String message) {
    System.out.println(message);
  }

  private static void writeLine() {
    System.out.println();
  }

  private static Map<String, String> parseCommandLine(String[] args) {
    List<String> errors = new ArrayList<String>();
    Map<String, String> arguments = new HashMap<String, String>();

    for (int i = 0; i < args.length; i++) {
      if (CONFIG_FILE.equalsIgnoreCase(args[i])) {
        if ((i + 1) < args.length) {
          arguments.put(CONFIG_FILE, args[i + 1]);
        } else {
          errors.add(getString("RuntimeError.19", CONFIG_FILE)); //$NON-NLS-1$
        }
        i++;
      } else if (OVERWRITE.equalsIgnoreCase(args[i])) {
        arguments.put(OVERWRITE, "Y"); //$NON-NLS-1$
      } else if (VERBOSE.equalsIgnoreCase(args[i])) {
        arguments.put(VERBOSE, "Y"); //$NON-NLS-1$
      } else if (HELP_1.equalsIgnoreCase(args[i])) {
        arguments.put(HELP_1, "Y"); //$NON-NLS-1$
      } else if (HELP_2.equalsIgnoreCase(args[i])) {
        // put HELP_1 in the map here too - so we only
        // have to check for one entry in the mainline
        arguments.put(HELP_1, "Y"); //$NON-NLS-1$
      } else if (FORCE_JAVA_LOGGING.equalsIgnoreCase(args[i])) {
        LogFactory.forceJavaLogging();
      } else if (CONTEXT_IDS.equalsIgnoreCase(args[i])) {
        if ((i + 1) < args.length) {
          arguments.put(CONTEXT_IDS, args[i + 1]);
        } else {
          errors.add(getString("RuntimeError.19", CONTEXT_IDS)); //$NON-NLS-1$
        }
        i++;
      } else if (TABLES.equalsIgnoreCase(args[i])) {
        if ((i + 1) < args.length) {
          arguments.put(TABLES, args[i + 1]);
        } else {
          errors.add(getString("RuntimeError.19", TABLES)); //$NON-NLS-1$
        }
        i++;
      } else {
        errors.add(getString("RuntimeError.20", args[i])); //$NON-NLS-1$
      }
    }

    if (!errors.isEmpty()) {
      for (String error : errors) {
        writeLine(error);
      }

      System.exit(-1);
    }

    return arguments;
  }
}
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