svn commit: r543069 - /incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java

[xa...@apache.org]

Author: xavier
Date: Wed May 30 23:40:40 2007
New Revision: 543069

URL: http://svn.apache.org/viewvc?view=rev&rev=543069
Log:
add a check utility class, which can be used to check for nullity consistently

Added:
    incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java   (with props)

Added: incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java
URL: http://svn.apache.org/viewvc/incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java?view=auto&rev=543069
==============================================================================
--- incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java (added)
+++ incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java Wed May 30 23:40:40 2007
@@ -0,0 +1,38 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You 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 org.apache.ivy.util;
+
+/**
+ * Utility class used to perform some checks.
+ */
+public class Checks {
+	/**
+	 * Checks that an object is not null, and throw an exception
+	 * if the object is null.
+	 * 
+	 * @param o the object to check
+	 * @param objectName the name of the object to check. This name will be used in the exception message.
+	 * @throws IllegalArgumentException if the object is null
+	 */
+	public static void checkNotNull(Object o, String objectName) {
+		if (o == null) {
+			throw new IllegalArgumentException(objectName+" must not be null");
+		}
+	}
+
+}

Propchange: incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java
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