1. Groovy
2009.12.12 DevLOVE 2009 Fusion
takuma.watabiki@jggug.org

2. JGGUG Grails/Groovy
twitter id : bikisuke

3. Groovy
10

4. Groovy

5. Groovy

6. Groovy
• JVM

7. Groovy
• JVM
•

8. Groovy
• JVM
•
•

9. Groovy
• JVM
•
•
• Java

10. Groovy
• JVM
•
•
• Java
• Ruby Python, Smalltalk

11. Java

13. Java
C)

14. Java Groovy
C)

15. Groovy Java
Java

16. Groovy Java
Java

18. ERROR
Java
Groovy

19. import java.io.*;
import java.util.regex.*;
public class ErrorExtractor {
public static void main(String[] args) {
BufferedReader br = null;
BufferedWriter bw = null;
try {
br = new BufferedReader(new InputStreamReader(
new FileInputStream(new File("/work/server.log"))));
bw = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream("/work/errorlist.log")));
String line = null;
Pattern p = Pattern.compile(".*ERROR.*");
while((line = br.readLine()) != null) {
Matcher m = p.matcher(line);
if(m.matches())
bw.write(line + "¥n");
}
} catch (Exception e) {
} finally {
try {
br.close();
bw.close();
} catch(Exception e) {} Java
}
}
}

20. import java.io.*;
import java.util.regex.*;
public class ErrorExtractor {
public static void main(String[] args) {
BufferedReader br = null;
BufferedWriter bw = null;
try {
br = new BufferedReader(new InputStreamReader(
new FileInputStream(new File("/work/server.log"))));
bw = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream("/work/errorlist.log")));
String line = null;
Pattern p = Pattern.compile(".*ERROR.*");
while((line = br.readLine()) != null) {
Matcher m = p.matcher(line);
if(m.matches())
bw.write(line + "¥n");
}
} catch (Exception e) {
} finally {
try {
br.close();
bw.close(); .groovy
} catch(Exception e) {}
}
}
}

21. import java.util.regex.*;
BufferedReader br = null;
BufferedWriter bw = null;
try {
br = new BufferedReader(new InputStreamReader(
new FileInputStream(new File("/work/server.log"))));
bw = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream("/work/errorlist.log")));
String line = null;
Pattern p = Pattern.compile(".*ERROR.*");
while((line = br.readLine()) != null) {
Matcher m = p.matcher(line);
if(m.matches())
bw.write(line + "¥n");
}
} catch (Exception e) {
} finally {
try {
br.close();
bw.close();
main
} catch(Exception e) {}
}

22. import java.util.regex.*;
BufferedReader br = new BufferedReader(new InputStreamReader(
new FileInputStream(new File("/work/server.log"))));
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream("/work/errorlist.log")));
String line = null;
Pattern p = Pattern.compile(".*ERROR.*");
while((line = br.readLine()) != null) {
Matcher m = p.matcher(line);
if(m.matches())
bw.write(line + "¥n");
}
br.close();
bw.close();
try-catch

23. File f = new File("/work/errorlist.log")
new File("/work/server.log").eachLine { line ->
if(line =~ ".*ERROR.*") {
f.append(line + "¥n")
}
}
Groovy

25. import java.io.*;
import java.util.regex.*;
public class ErrorExtractor {
public static void main(String[] args) {
BufferedReader br = null;
BufferedWriter bw = null;
try {
br = new BufferedReader(new InputStreamReader(
new FileInputStream(new File("/work/server.log"))));
bw = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream("/work/errorlist.log")));
String line = null;
Pattern p = Pattern.compile(".*ERROR.*");
while((line = br.readLine()) != null) {
Matcher m = p.matcher(line);
if(m.matches())
bw.write(line + "¥n");
}
} catch (Exception e) {
} finally {
try {
br.close();
bw.close();
} catch(Exception e) {}
}
}
}

26. File f = new File("/work/errorlist.log")
new File("/work/server.log").eachLine { line ->
if(line =~ ".*ERROR.*") {
f.append(line + "¥n")
}
}

28. •
• Expando Meta Class
• Grape
• Mixin
• AST
• ...

29. Groovy

31. Groovy

32. Groovy

33. Groovy

35. Hudson
kkawa
Groovy ※

36. Hudson
kkawa
Groovy ※
※2008 SDC SQUARE

37. Groovy Q&A

38. Q.

39. A. Hudson
CLI groovy
groovysh

40. Q. Scala

41. A.
Groovy

42. Q.

43. A.
Groovy
!
Groovy @torazuka

44. Q. Groovy

45. A.
Groovy
JOJO
Groovy

46. A.
Groovy
JOJO
Groovy

47. Q. Groovy

48. A.

49. Groovy

50. Groovy
JGGUG

51. Groovy
JGGUG

55. Groovy JVM
Java