[flaptor-util] r200 committed - Added explanations to the cache commands....

[codesite...@google.com]

Revision: 200
Author: jhandl
Date: Fri Aug 28 10:25:46 2009
Log: Added explanations to the cache commands.
Changed the get method to behave as the getobj method, and renamed
getobjprop to getprop.

http://code.google.com/p/flaptor-util/source/detail?r=200

Modified:
/trunk/src/com/flaptor/util/cache/FileCache.java

=======================================
--- /trunk/src/com/flaptor/util/cache/FileCache.java Thu Oct 9 16:47:43
2008
+++ /trunk/src/com/flaptor/util/cache/FileCache.java Fri Aug 28 10:25:46
2009
@@ -43,6 +43,7 @@
import com.flaptor.util.Execute;
import com.flaptor.util.FileUtil;
import com.flaptor.util.TranscodeUtil;
+import java.lang.reflect.Method;

/**
@@ -645,11 +646,17 @@
private static void helpAndExit() {
String usage = "\nCache <command> <args> [-dates <dd-mm-yyyy>
<dd-mm-yyyy>]\n"
+"\nCommands:\n"
- +" get <dir> [<url>]\n"
- +" getobj <dir> [<url>]\n"
- +" getobjprop <dir> <method> [<url>]\n"
+" list <dir>\n"
- +" translate <src-dir> <src-file-depth> <dest-dir>
<dst-file-depth>\n";
+ +" Lists the keys for the stored objects.\n"
+ +" get <dir> [<key>]\n"
+ +" Shows the result of calling toString() on the stored
objects.\n"
+ +" If the <key> parameter is not given, the command is
applied to all the stored objects.\n"
+ +" getprop <dir> [<method> [<key>]]\n"
+ +" Shows the result of calling the given method on the
stored objects.\n"
+ +" If no method is given, it shows callable methods.\n"
+ +" If the <key> is not given, it applies to all the
stored items.\n"
+ +" translate <src-dir> <src-file-depth> <dest-dir>
<dst-file-depth>\n"
+ +" Copies the cache to a new location using a different
file depth structure.\n";
System.out.println(usage);
System.exit(1);
}
@@ -702,6 +709,35 @@
}
}
}
+
+ private static Object getProperty(Object object, String property) {
+ if (object == null) return null;
+ try {
+ return object.getClass().getMethod(property, new
Class[0]).invoke(object, new Object[0]);
+ } catch (SecurityException e) {
+ System.out.println("Unable to obtain property " + property + "
from class "+ object.getClass());
+ } catch (NoSuchMethodException e) {
+ System.out.println("Unable to obtain property " + property + "
from class "+ object.getClass());
+ } catch (IllegalArgumentException e) {
+ System.out.println("Unable to obtain property " + property + "
from class "+ object.getClass());
+ } catch (IllegalAccessException e) {
+ System.out.println("Unable to obtain property " + property + "
from class "+ object.getClass());
+ } catch (InvocationTargetException e) {
+ System.out.println("Unable to obtain property " + property + "
from class "+ object.getClass());
+ }
+ return null;
+ }
+
+ private static void showCallableMethods(Object obj) {
+ System.out.println("Stored object is of class "+obj.getClass()+"
which implements the following callable methods");
+ for (Method mtd : obj.getClass().getMethods()) {
+ if (mtd.getParameterTypes().length == 0
&& ! "void".equals(mtd.getReturnType().getName())) {
+ System.out.println(" "+mtd.getName()+"
returns "+mtd.getReturnType().getName());
+ }
+ }
+ }
+
+

public static void main (String[] args) {
if (args.length < 2) {
@@ -710,7 +746,7 @@
Date[] range = new Date[2];
String[] param = extractDateRange(args, range);
int arglen = param.length;
- if ("get".equals(param[0])) {
+/* if ("getbytes".equals(param[0])) {
FileCache<byte[]> cache = new FileCache<byte[]>(param[1]);
switch (arglen) {
case 2:
@@ -728,7 +764,8 @@
break;
default: helpAndExit();
}
- } else if ("getobj".equals(param[0])) {
+ } else*/
+ if ("get".equals(param[0]) || "getobj".equals(param[0])) {
FileCache<Object> cache = new FileCache<Object>(param[1]);
switch (arglen) {
case 2:
@@ -746,21 +783,47 @@
break;
default: helpAndExit();
}
- } else if ("getobjprop".equals(param[0])) {
+ } else if ("getprop".equals(param[0])) {
FileCache<Object> cache = new FileCache<Object>(param[1]);
+ Iterator<String> it = null;
switch (arglen) {
- case 3:
- Iterator<String> it = cache.iterator();
- while (it.hasNext()) {
+ case 2:
+ it = cache.iterator();
+ if (it.hasNext()) {
String key = it.next();
- Object data = getProperty(cache.getItem(key), param[2]);
- showEntry(cache, param[2], data, range);
- }
- System.out.println("-------");
+ Object obj = cache.getItem(key);
+ showCallableMethods(obj);
+ }
+ break;
+ case 3:
+ String key = param[2];
+ Object obj = cache.getItem(key);
+ if (null != obj) {
+ showCallableMethods(obj);
+ } else {
+ it = cache.iterator();
+ while (it.hasNext()) {
+ key = it.next();
+ obj = cache.getItem(key);
+ String prop = param[2];
+ Object data = getProperty(obj, prop);
+ if (null == data) {
+ System.out.println("Unable to obtain
property "+prop+" from class "+obj.getClass());
+ }
+ showEntry(cache, key, data, range);
+ }
+ System.out.println("-------");
+ }
break;
case 4:
- Object data = getProperty(cache.getItem(param[3]), param[2]);
- showEntry(cache, param[3], data, range);
+ key = param[3];
+ obj = cache.getItem(key);
+ String prop = param[2];
+ Object data = getProperty(obj, prop);
+ if (null == data) {
+ System.out.println("Unable to obtain property "+prop+"
from class "+obj.getClass());
+ }
+ showEntry(cache, key, data, range);
break;
default: helpAndExit();
}
@@ -812,22 +875,5 @@
}
}

- private static Object getProperty(Object object, String property) {
- if (object == null) return null;
- try {
- return object.getClass().getMethod(property, new
Class[0]).invoke(object, new Object[0]);
- } catch (SecurityException e) {
- System.out.println("Unable to obtain property " + property + "
from class "+ object.getClass());
- } catch (NoSuchMethodException e) {
- System.out.println("Unable to obtain property " + property + "
from class "+ object.getClass());
- } catch (IllegalArgumentException e) {
- System.out.println("Unable to obtain property " + property + "
from class "+ object.getClass());
- } catch (IllegalAccessException e) {
- System.out.println("Unable to obtain property " + property + "
from class "+ object.getClass());
- } catch (InvocationTargetException e) {
- System.out.println("Unable to obtain property " + property + "
from class "+ object.getClass());
- }
- return null;
- }
}