more usable commandline parser API

[svjatoslav_commons.git] / src / main / java / eu / svjatoslav / commons / commandline / parameterparser / parameter / IntegerParameter.java

diff --git a/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/parameter/IntegerParameter.java b/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/parameter/IntegerParameter.java
new file mode 100644 (file)
index 0000000..7af305b
--- /dev/null
+++ b/src/main/java/eu/svjatoslav/commons/commandline/parameterparser/parameter/IntegerParameter.java
@@ -0,0 +1,31 @@
+package eu.svjatoslav.commons.commandline.parameterparser.parameter;
+
+import eu.svjatoslav.commons.commandline.parameterparser.ArgumentCount;
+import eu.svjatoslav.commons.commandline.parameterparser.Parameter;
+import eu.svjatoslav.commons.commandline.parameterparser.type.IntegerArgument;
+
+public class IntegerParameter extends Parameter {
+
+       public IntegerParameter(final String description) {
+               super(new IntegerArgument(), description, ArgumentCount.SINGLE);
+       }
+
+       @Override
+       public IntegerParameter addAliases(final String... aliasArray) {
+               super.addAliases(aliasArray);
+               return this;
+       }
+
+       public int getValue() {
+               if (arguments.size() != 1)
+                       throw new RuntimeException("Parameter " + description
+                                       + " shall have exactly 1 argument.");
+               return Integer.parseInt(arguments.get(0));
+       }
+
+       @Override
+       public IntegerParameter setMandatory() {
+               mandatory = true;
+               return this;
+       }
+}