Android Open Source - DKO Data Source Generator

From Project

Back to project page DKO.
License

The source code is released under:
GNU Lesser General Public License
If you think the Android project DKO listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package org.kered.dko.ant;
/*ww w.j a  v  a 2s  .  c  o m*/
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.kered.dko.json.JSONException;
import org.kered.dko.json.JSONObject;

class DataSourceGenerator {

  static final String _DEFAULT_PACKAGE_DATASOURCE_LOADER = "_DEFAULT_PACKAGE_DATASOURCE_LOADER";

  public static String getDataSourceName(final String dataSource) {
    if (dataSource == null) return null;
    if (!dataSource.contains("=")) return "_DefaultDS";
    final String[] x = dataSource.split("=");
    String name = x[0].trim();
    name = name.substring(0, 1).toUpperCase() + name.substring(1);
    return name;
  }

  public static String getClassName(final String dataSource) {
    String part2 = dataSource.contains("=") ? dataSource.split("=")[1] : dataSource;
    final String cls = part2.substring(0, part2.lastIndexOf(".")).trim();
    return cls;
  }

  public static String getMethodName(final String dataSource) {
    String part2 = dataSource.contains("=") ? dataSource.split("=")[1] : dataSource;
    String method = part2.substring(part2.lastIndexOf(".")+1).trim();
    while (method.endsWith("(") || method.endsWith(")") || method.endsWith(" ") || method.endsWith(";")) {
      method = method.substring(0, method.length() - 1);
    }
    return method;
  }

  private static List<String> getSchemaList(final String metadataFile) throws IOException {
    final BufferedReader br = new BufferedReader(new FileReader(metadataFile));
    final StringBuffer sb = new StringBuffer();
    String s = null;
    while ((s=br.readLine())!=null) sb.append(s).append('\n');
    try {
      final JSONObject metadata = new JSONObject(sb.toString());
      final JSONObject schemas = metadata.getJSONObject("schemas");
      return new ArrayList<String>(schemas.keySet());
    } catch (final JSONException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    return null;
  }

  public static void go(final String dir, final String pkg, final String dataSource,
      final String metadataFile, final Map<String, String> schemaAliases) throws IOException {
    final String pkgDir = Util.join("/", pkg.split("[.]"));
    new File(Util.join("/", dir, pkgDir)).mkdirs();

    final String name = getDataSourceName(dataSource);
    final String cls = getClassName(dataSource);
    final String method = getMethodName(dataSource);
    final List<String> schemaList = getSchemaList(metadataFile);

    for (String schema : schemaList) {

      if (schemaAliases.containsKey(schema)) {
        schema = schemaAliases.get(schema);
      }

      final String pkgName = ClassGenerator.sanitizeJavaKeywords(schema);

      final File file = new File(Util.join("/", dir, pkgDir, name + ".java"));
      System.out.println("writing: "+ file.getAbsolutePath());

      final BufferedWriter br = new BufferedWriter(new FileWriter(file));

      br.write("package "+ pkg +";\n");
      br.write("\n");
      br.write("import org.kered.dko.Context;\n");
      br.write("import org.kered.dko.datasource.ReflectedDataSource;\n");
      br.write("\n");
      br.write("public class "+ name +" {\n");
      br.write("\n");
      br.write("\n");
      br.write("\tpublic static "+ "ReflectedDataSource" +" "+ "INSTANCE"
          +" = new "+ "ReflectedDataSource" +"(\""+ cls +"\", \""+ method +"\");\n");
      br.write("\n");
      br.write("}\n");

      br.close();

    }

  }

}
Java Source Code List
