1 files changed, 86 insertions, 0 deletions
diff --git a/src/main/java/net/sf/antcontrib/logic/condition/IsLessThan.java b/src/main/java/net/sf/antcontrib/logic/condition/IsLessThan.java
new file mode 100644
index 0000000..64c676c
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+++ b/src/main/java/net/sf/antcontrib/logic/condition/IsLessThan.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2001-2004 Ant-Contrib project.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.sf.antcontrib.logic.condition;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.taskdefs.condition.Equals;
+
+/**
+ * Extends Equals condition to test if the first argument is less than the
+ * second argument. Will deal with base 10 integer and decimal numbers, otherwise,
+ * treats arguments as Strings.
+ * <p>Developed for use with Antelope, migrated to ant-contrib Oct 2003.
+ *
+ * @author     Dale Anson, [email protected]
+ * @version $Revision: 1.4 $
+ */
+public class IsLessThan extends Equals {
+
+    private String arg1, arg2;
+    private boolean trim = false;
+    private boolean caseSensitive = true;
+
+    public void setArg1(String a1) {
+        arg1 = a1;
+    }
+
+    public void setArg2(String a2) {
+        arg2 = a2;
+    }
+
+    /**
+     * Should we want to trim the arguments before comparing them?
+     *
+     * @since Revision: 1.3, Ant 1.5
+     */
+    public void setTrim(boolean b) {
+        trim = b;
+    }
+
+    /**
+     * Should the comparison be case sensitive?
+     *
+     * @since Revision: 1.3, Ant 1.5
+     */
+    public void setCasesensitive(boolean b) {
+        caseSensitive = b;
+    }
+
+    public boolean eval() throws BuildException {
+        if (arg1 == null || arg2 == null) {
+            throw new BuildException("both arg1 and arg2 are required in "
+                                     + "less than");
+        }
+
+        if (trim) {
+            arg1 = arg1.trim();
+            arg2 = arg2.trim();
+        }
+        
+        // check if args are numbers
+        try {
+            double num1 = Double.parseDouble(arg1);
+            double num2 = Double.parseDouble(arg2);
+            return num1 < num2;
+        }
+        catch(NumberFormatException nfe) {
+            // ignored, fall thru to string comparision       
+        }
+        
+        return caseSensitive ? arg1.compareTo(arg2) < 0 : arg1.compareToIgnoreCase(arg2) < 0;
+    }
+
+}