Added MailToStringTransformerParser.

org.springframework.integration.mail/src/main/java/org/springframework/integration/mail/config/MailNamespaceHandler.java

@@ -32,6 +32,7 @@ public class MailNamespaceHandler extends NamespaceHandlerSupport {
 		this.registerBeanDefinitionParser("polling-mail-source", new PollingMailSourceParser());
 		this.registerBeanDefinitionParser("imap-idle-mail-source", new SubscribableImapIdleMailSourceParser());
 		this.registerBeanDefinitionParser("header-enricher", new SimpleHeaderEnricherParser(MailHeaders.TRANSPORT_PREFIX));
+		this.registerBeanDefinitionParser("mail-to-string-transformer", new MailToStringTransformerParser());
 	}
 
 }

org.springframework.integration.mail/src/main/java/org/springframework/integration/mail/config/MailToStringTransformerParser.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2002-2008 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.integration.mail.config;
+
+import org.w3c.dom.Element;
+
+import org.springframework.beans.factory.support.BeanDefinitionBuilder;
+import org.springframework.beans.factory.xml.ParserContext;
+import org.springframework.integration.config.IntegrationNamespaceUtils;
+import org.springframework.integration.mail.transformer.MailToStringTransformer;
+import org.springframework.integration.transformer.Transformer;
+import org.springframework.integration.transformer.config.AbstractTransformerParser;
+
+/**
+ * Parser for the <mail-to-string-transformer> element.
+ * 
+ * @author Mark Fisher
+ */
+public class MailToStringTransformerParser extends AbstractTransformerParser {
+
+	@Override
+	protected Class<? extends Transformer> getTransformerClass() {
+		return MailToStringTransformer.class;
+	}
+
+	@Override
+	protected void parseTransformer(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
+		IntegrationNamespaceUtils.setValueIfAttributeDefined(builder, element, "charset");
+	}
+
+}