1 files changed, 89 insertions, 0 deletions
diff --git a/java/pablotron/luigi/Filter.java b/java/pablotron/luigi/Filter.java
new file mode 100644
index 0000000..d89beab
--- /dev/null
+++ b/java/pablotron/luigi/Filter.java
@@ -0,0 +1,89 @@
+package pablotron.luigi;
+
+import java.util.Map;
+import java.util.HashMap;
+
+public final class Filter {
+  public interface Handler {
+    public String filter(String val, String args[], Map<String, String> row);
+  };
+
+  public static Map<String, Handler> FILTERS = new HashMap<String, Handler>() {{
+    put("null", new Handler() {
+      public String filter(String val, String args[], Map<String, String> row) {
+        return "";
+      }
+    });
+
+    put("s", new Handler() {
+      public String filter(String val, String args[], Map<String, String> row) {
+        int v = Integer.parseInt(val);
+        return (v == 1) ? "" : "s";
+      }
+    });
+
+    put("uc", new Handler() {
+      public String filter(String val, String args[], Map<String, String> row) {
+        return val.toUpperCase();
+      }
+    });
+
+    put("lc", new Handler() {
+      public String filter(String val, String args[], Map<String, String> row) {
+        return val.toLowerCase();
+      }
+    });
+
+    put("length", new Handler() {
+      public String filter(String val, String args[], Map<String, String> row) {
+        return Integer.toString(val.length());
+      }
+    });
+
+    put("trim", new Handler() {
+      public String filter(String val, String args[], Map<String, String> row) {
+        return val.trim();
+      }
+    });
+
+    put("h", new Handler() {
+      public String filter(String val, String args[], Map<String, String> row) {
+        StringBuilder r = new StringBuilder(val.length());
+
+        for (int i = 0, l = val.length(); i < l; i++) {
+          char c = val.charAt(i);
+
+          switch (c) {
+            case '&':
+              r.append("&amp;");
+              break;
+            case '<':
+              r.append("&lt;");
+              break;
+            case '>':
+              r.append("&gt;");
+              break;
+            case '\'':
+              r.append("&apos;");
+              break;
+            case '"':
+              r.append("&quot;");
+              break;
+            default:
+              r.append(c);
+          }
+        }
+
+        return r.toString();
+/* 
+ *         return val
+ *           .replace("&", "&amp;")
+ *           .replace("<", "&lt;")
+ *           .replace(">", "&gt;")
+ *           .replace("'", "&apos;")
+ *           .replace("\"", "&quot;");
+ */ 
+      }
+    });
+  }};
+};