From 9fab45944ec220d5d047a2ee68b68bb7362b7a06 Mon Sep 17 00:00:00 2001
From: Sean Flanigan <sflaniga@redhat.com>
Date: Wed, 27 Sep 2017 16:37:41 +1000
Subject: [PATCH] Add RandomStringUtils

---
 server/zanata-model/pom.xml                   |  5 ++
 .../org/zanata/util/RandomStringUtils.java    | 53 +++++++++++++++++++
 .../zanata/util/RandomStringUtilsTest.java    | 44 +++++++++++++++
 3 files changed, 102 insertions(+)
 create mode 100644 server/zanata-model/src/main/java/org/zanata/util/RandomStringUtils.java
 create mode 100644 server/zanata-model/src/test/java/org/zanata/util/RandomStringUtilsTest.java

diff --git a/server/zanata-model/pom.xml b/server/zanata-model/pom.xml
index 3d65467af9..9c4fa87d6b 100644
--- a/server/zanata-model/pom.xml
+++ b/server/zanata-model/pom.xml
@@ -236,6 +236,11 @@
       <artifactId>commons-lang3</artifactId>
     </dependency>
 
+    <dependency>
+      <groupId>org.apache.commons</groupId>
+      <artifactId>commons-text</artifactId>
+    </dependency>
+
     <dependency>
       <groupId>javax.enterprise</groupId>
       <artifactId>cdi-api</artifactId>
diff --git a/server/zanata-model/src/main/java/org/zanata/util/RandomStringUtils.java b/server/zanata-model/src/main/java/org/zanata/util/RandomStringUtils.java
new file mode 100644
index 0000000000..b01e9ae38b
--- /dev/null
+++ b/server/zanata-model/src/main/java/org/zanata/util/RandomStringUtils.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2017, Red Hat, Inc. and individual contributors
+ * as indicated by the @author tags. See the copyright.txt file in the
+ * distribution for a full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.zanata.util;
+
+import org.apache.commons.text.RandomStringGenerator;
+
+import static org.apache.commons.text.CharacterPredicates.DIGITS;
+import static org.apache.commons.text.CharacterPredicates.LETTERS;
+
+/**
+ * Incomplete replacement for commons-lang's RandomStringUtils, now deprecated
+ * @author Sean Flanigan <a href="mailto:sflaniga@redhat.com">sflaniga@redhat.com</a>
+ */
+public class RandomStringUtils {
+
+    private RandomStringUtils() {
+    }
+
+    public static String randomAlphabetic(int length) {
+        return new RandomStringGenerator.Builder()
+                .withinRange('A', 'z')
+                .filteredBy(LETTERS)
+                .build()
+                .generate(length);
+    }
+
+    public static String randomAlphanumeric(int length) {
+        return new RandomStringGenerator.Builder()
+                .withinRange('0', 'z')
+                .filteredBy(LETTERS, DIGITS)
+                .build()
+                .generate(length);
+    }
+
+}
diff --git a/server/zanata-model/src/test/java/org/zanata/util/RandomStringUtilsTest.java b/server/zanata-model/src/test/java/org/zanata/util/RandomStringUtilsTest.java
new file mode 100644
index 0000000000..924224248e
--- /dev/null
+++ b/server/zanata-model/src/test/java/org/zanata/util/RandomStringUtilsTest.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2017, Red Hat, Inc. and individual contributors
+ * as indicated by the @author tags. See the copyright.txt file in the
+ * distribution for a full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package org.zanata.util;
+
+import java.util.regex.Pattern;
+
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Sean Flanigan <a href="mailto:sflaniga@redhat.com">sflaniga@redhat.com</a>
+ */
+public class RandomStringUtilsTest {
+    @Test
+    public void testAlphabetic() {
+        String alphabetic = RandomStringUtils.randomAlphabetic(999);
+        assertThat(alphabetic).matches(Pattern.compile("[a-zA-Z]{999}"));
+    }
+
+    @Test
+    public void testAlphanumeric() {
+        String alphabetic = RandomStringUtils.randomAlphanumeric(999);
+        assertThat(alphabetic).matches(Pattern.compile("[a-zA-Z0-9]{999}"));
+    }
+}