BATCH-1470: remove commons-lang dependency

spring-batch-infrastructure/src/main/java/org/springframework/batch/item/xml/StaxEventItemWriter.java

@@ -32,7 +32,6 @@ import javax.xml.stream.XMLEventWriter;
 import javax.xml.stream.XMLOutputFactory;
 import javax.xml.stream.XMLStreamException;
 
-import org.apache.commons.lang.StringUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.springframework.batch.item.ExecutionContext;
@@ -52,6 +51,7 @@ import org.springframework.oxm.XmlMappingException;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
 import org.springframework.util.CollectionUtils;
+import org.springframework.util.StringUtils;
 import org.springframework.xml.transform.StaxResult;
 
 /**
@@ -431,7 +431,7 @@ public class StaxEventItemWriter<T> extends ExecutionContextUserSupport implemen
 
 		// write root tag
 		writer.add(factory.createStartElement(getRootTagNamespacePrefix(), getRootTagNamespace(), getRootTagName()));
-		if (!StringUtils.isBlank(getRootTagNamespace())) {
+		if (StringUtils.hasText(getRootTagNamespace())) {
 			writer.add(factory.createNamespace(getRootTagNamespacePrefix(), getRootTagNamespace()));
 		}
 
@@ -458,8 +458,8 @@ public class StaxEventItemWriter<T> extends ExecutionContextUserSupport implemen
 
 		// writer.writeEndDocument(); <- this doesn't work after restart
 		// we need to write end tag of the root element manually
-		
-		String nsPrefix = StringUtils.isBlank(getRootTagNamespacePrefix()) ? "" : getRootTagNamespacePrefix() + ":";
+
+		String nsPrefix = !StringUtils.hasText(getRootTagNamespacePrefix()) ? "" : getRootTagNamespacePrefix() + ":";
 		try {
 			bufferedWriter.write("</" + nsPrefix + getRootTagName() + ">");
 		}

spring-batch-infrastructure/src/main/java/org/springframework/batch/support/SerializationUtils.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2006-2010 the original author or authors.
+ *
+ * Licensed 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.springframework.batch.support;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+
+
+/**
+ * Static utility to help with serialization.
+ * 
+ * @author Dave Syer
+ *
+ */
+public class SerializationUtils {
+
+	/**
+	 * Serialize the object provided.
+	 * 
+	 * @param object the object to serialize
+	 * @return an array of bytes representing the object in a portable fashion
+	 */
+	public static byte[] serialize(Object object) {
+
+		if (object==null) {
+			return null;
+		}
+
+		ByteArrayOutputStream stream = new ByteArrayOutputStream();
+		try {
+			new ObjectOutputStream(stream).writeObject(object);
+		} catch (IOException e) {
+			throw new IllegalStateException("Could not serialize object of type: "+object.getClass(), e);
+		}
+
+		return stream.toByteArray();
+
+	}
+
+	/**
+	 * @param bytes a serialized object created
+	 * @return the result of deserializing the bytes
+	 */
+	public static Object deserialize(byte[] bytes) {
+
+		if (bytes==null) {
+			return null;
+		}
+
+		try {
+			return new ObjectInputStream(new ByteArrayInputStream(bytes)).readObject();
+		}
+		catch (IOException e) {
+			throw new IllegalStateException("Could not deserialize object", e);
+		}
+		catch (ClassNotFoundException e) {
+			throw new IllegalStateException("Could not deserialize object type", e);
+		}
+
+	}
+
+}