Android Open Source - DKO Util

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License

The source code is released under:

GNU Lesser General Public License

Java Source Code

package org.kered.dko.datasource;
//from  w w w. j  av  a2 s. c o m
import java.io.PrintStream;
import java.util.Collection;
import java.util.List;

import org.kered.dko.Constants;

class Util {

  static String join(final String s, final Collection<?> c) {
      final StringBuilder sb = new StringBuilder();
      for (final Object o : c) {
        sb.append(o);
        sb.append(s);
      }
      if (c != null && c.size() > 0) {
        sb.delete(sb.length()-s.length(), sb.length());
      }
      return sb.toString();
  }

  static <T extends Object> String join(final String s, final T... c) {
    if(c==null || c.length==0) return "";
      final StringBuilder sb = new StringBuilder();
      for (final Object o : c) {
        sb.append(o==null ? "" : o.toString());
        sb.append(s);
      }
      return sb.delete(sb.length()-s.length(), sb.length()).toString();
  }

  static void log(final String sql, final List<Object> bindings) {
    PrintStream log = null; //System.out;
    final String property = System.getProperty(Constants.PROP_LOG_SQL);
    final String property2 = System.getProperty(Constants.PROP_LOG);
    if ("System.err".equalsIgnoreCase(property))
      log = System.err;
    if ("System.out".equalsIgnoreCase(property))
      log = System.out;
    if (log == null && truthy(property))
      log = System.err;
    if ("System.err".equalsIgnoreCase(property2))
      log = System.err;
    if ("System.out".equalsIgnoreCase(property2))
      log = System.out;
    if (log == null && truthy(property2))
      log = System.err;
    if (log == null) return;
    log.println("==> "+ sql +"");
    if (bindings != null && bindings.size() > 0)
      log.println("^^^ ["+ join("|", bindings) +"]");
  }

  static boolean truthy(String s) {
    if (s == null) return false;
    s = s.trim();
    if ("true".equalsIgnoreCase(s)) return true;
    if ("t".equalsIgnoreCase(s)) return true;
    if ("1".equals(s)) return true;
    return false;
  }

}

Java Source Code List

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