X-Git-Url: http://www2.svjatoslav.eu/gitweb/?p=cli-helper.git;a=blobdiff_plain;f=src%2Fmain%2Fjava%2Feu%2Fsvjatoslav%2Fcommons%2Fcli_helper%2Fparameter_parser%2Fparameter%2FFileOptions.java;fp=src%2Fmain%2Fjava%2Feu%2Fsvjatoslav%2Fcommons%2Fcli_helper%2Fparameter_parser%2Fparameter%2FFileOptions.java;h=8328bd335231a7327eea7d193957c83bde4747e8;hp=0000000000000000000000000000000000000000;hb=324ea20c0c65f671c0d35e94ed90142912a56b4c;hpb=2c29a140b3ff6f0f60ac838437c4bd9b8fd6dad7

diff --git a/src/main/java/eu/svjatoslav/commons/cli_helper/parameter_parser/parameter/FileOptions.java b/src/main/java/eu/svjatoslav/commons/cli_helper/parameter_parser/parameter/FileOptions.java
new file mode 100755
index 0000000..8328bd3
--- /dev/null
+++ b/src/main/java/eu/svjatoslav/commons/cli_helper/parameter_parser/parameter/FileOptions.java
@@ -0,0 +1,49 @@
+/*
+ * Svjatoslav Commons - shared library of common functionality. Author: Svjatoslav Agejenko.
+ * This project is released under Creative Commons Zero (CC0) license.
+ */
+package eu.svjatoslav.commons.cli_helper.parameter_parser.parameter;
+
+import eu.svjatoslav.commons.cli_helper.parameter_parser.ParameterCount;
+import eu.svjatoslav.commons.cli_helper.parameter_parser.Option;
+
+import java.io.File;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import static eu.svjatoslav.commons.cli_helper.parameter_parser.parameter.FileOption.validateFile;
+
+public class FileOptions extends Option<List<File>, FileOptions> {
+
+    private ExistenceType existenceType = ExistenceType.DOES_NOT_MATTER;
+
+    public FileOptions(final String description) {
+        super(description, ParameterCount.MULTI);
+    }
+
+    @Override
+    public String describeFormat() {
+        return existenceType.description + " files";
+    }
+
+    @Override
+    public List<File> getValue() {
+        return parameters.stream().map(File::new).collect(Collectors.toList());
+    }
+
+    public FileOptions mustExist() {
+        existenceType = ExistenceType.MUST_EXIST;
+        return this;
+    }
+
+    public FileOptions mustNotExist() {
+        existenceType = ExistenceType.MUST_NOT_EXIST;
+        return this;
+    }
+
+    @Override
+    public boolean isValid(final String value) {
+        return validateFile(existenceType, value);
+    }
+
+}