1 files changed, 112 insertions, 0 deletions
diff --git a/server/src/org/jsoup/helper/Validate.java b/server/src/org/jsoup/helper/Validate.java
new file mode 100644
index 0000000000..814bcc3a40
--- /dev/null
+++ b/server/src/org/jsoup/helper/Validate.java
@@ -0,0 +1,112 @@
+package org.jsoup.helper;
+
+/**
+ * Simple validation methods. Designed for jsoup internal use
+ */
+public final class Validate {
+    
+    private Validate() {}
+
+    /**
+     * Validates that the object is not null
+     * @param obj object to test
+     */
+    public static void notNull(Object obj) {
+        if (obj == null)
+            throw new IllegalArgumentException("Object must not be null");
+    }
+
+    /**
+     * Validates that the object is not null
+     * @param obj object to test
+     * @param msg message to output if validation fails
+     */
+    public static void notNull(Object obj, String msg) {
+        if (obj == null)
+            throw new IllegalArgumentException(msg);
+    }
+
+    /**
+     * Validates that the value is true
+     * @param val object to test
+     */
+    public static void isTrue(boolean val) {
+        if (!val)
+            throw new IllegalArgumentException("Must be true");
+    }
+
+    /**
+     * Validates that the value is true
+     * @param val object to test
+     * @param msg message to output if validation fails
+     */
+    public static void isTrue(boolean val, String msg) {
+        if (!val)
+            throw new IllegalArgumentException(msg);
+    }
+
+    /**
+     * Validates that the value is false
+     * @param val object to test
+     */
+    public static void isFalse(boolean val) {
+        if (val)
+            throw new IllegalArgumentException("Must be false");
+    }
+
+    /**
+     * Validates that the value is false
+     * @param val object to test
+     * @param msg message to output if validation fails
+     */
+    public static void isFalse(boolean val, String msg) {
+        if (val)
+            throw new IllegalArgumentException(msg);
+    }
+
+    /**
+     * Validates that the array contains no null elements
+     * @param objects the array to test
+     */
+    public static void noNullElements(Object[] objects) {
+        noNullElements(objects, "Array must not contain any null objects");
+    }
+
+    /**
+     * Validates that the array contains no null elements
+     * @param objects the array to test
+     * @param msg message to output if validation fails
+     */
+    public static void noNullElements(Object[] objects, String msg) {
+        for (Object obj : objects)
+            if (obj == null)
+                throw new IllegalArgumentException(msg);
+    }
+
+    /**
+     * Validates that the string is not empty
+     * @param string the string to test
+     */
+    public static void notEmpty(String string) {
+        if (string == null || string.length() == 0)
+            throw new IllegalArgumentException("String must not be empty");
+    }
+
+    /**
+     * Validates that the string is not empty
+     * @param string the string to test
+     * @param msg message to output if validation fails
+     */
+    public static void notEmpty(String string, String msg) {
+        if (string == null || string.length() == 0)
+            throw new IllegalArgumentException(msg);
+    }
+
+    /**
+     Cause a failure.
+     @param msg message to output.
+     */
+    public static void fail(String msg) {
+        throw new IllegalArgumentException(msg);
+    }
+}