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authorpabs@pablotron.org <pabs@pablotron.org>2014-12-18 16:09:13 -0500
committerpabs@pablotron.org <pabs@pablotron.org>2014-12-18 16:09:13 -0500
commit6cb72314f1d60e0836e7fe7aedad2872051f148f (patch)
tree4c8a6f01eac7db86ab40ee61d7c78053165d5bf4
parentce4be12c9afb8f7eeefee9f7ab4636cfb6134a2c (diff)
downloadluigi-template-6cb72314f1d60e0836e7fe7aedad2872051f148f.tar.bz2
luigi-template-6cb72314f1d60e0836e7fe7aedad2872051f148f.zip
handle empty argument list more efficiently
-rw-r--r--java/pablotron/luigi/Parser.java10
1 files changed, 9 insertions, 1 deletions
diff --git a/java/pablotron/luigi/Parser.java b/java/pablotron/luigi/Parser.java
index 6bf2638..207df86 100644
--- a/java/pablotron/luigi/Parser.java
+++ b/java/pablotron/luigi/Parser.java
@@ -87,6 +87,8 @@ public final class Parser {
return r.toArray(new Action[r.size()]);
}
+ private static final String[] NO_ARGS = {};
+
public static FilterReference[] parse_filters(
String filters_str
) throws LuigiError {
@@ -104,8 +106,14 @@ public final class Parser {
if (!m.find())
throw new LuigiError("invalid filter: " + f);
+ // get arguments string
+ String args = m.group(2).trim();
+
// append new filter reference to result
- r.add(new FilterReference(m.group(1), RE_DELIM_ARGS.split(m.group(2).trim())));
+ r.add(new FilterReference(
+ m.group(1),
+ (args.length() > 0) ? RE_DELIM_ARGS.split(args) : NO_ARGS
+ ));
}
// return result