Optimize String argument resolution in MessageTag

Closes gh-25809
This commit is contained in:
Juergen Hoeller 2020-09-25 11:23:38 +02:00
parent c04400890f
commit d9da663f6d
1 changed files with 5 additions and 18 deletions

View File

@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2018 the original author or authors. * Copyright 2002-2020 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -17,9 +17,9 @@
package org.springframework.web.servlet.tags; package org.springframework.web.servlet.tags;
import java.io.IOException; import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection; import java.util.Collection;
import java.util.Collections; import java.util.Collections;
import java.util.LinkedList;
import java.util.List; import java.util.List;
import javax.servlet.jsp.JspException; import javax.servlet.jsp.JspException;
@ -255,7 +255,7 @@ public class MessageTag extends HtmlEscapingAwareTag implements ArgumentAware {
@Override @Override
protected final int doStartTagInternal() throws JspException, IOException { protected final int doStartTagInternal() throws JspException, IOException {
this.nestedArguments = new LinkedList<>(); this.nestedArguments = new ArrayList<>();
return EVAL_BODY_INCLUDE; return EVAL_BODY_INCLUDE;
} }
@ -358,20 +358,7 @@ public class MessageTag extends HtmlEscapingAwareTag implements ArgumentAware {
@Nullable @Nullable
protected Object[] resolveArguments(@Nullable Object arguments) throws JspException { protected Object[] resolveArguments(@Nullable Object arguments) throws JspException {
if (arguments instanceof String) { if (arguments instanceof String) {
String[] stringArray = return StringUtils.delimitedListToStringArray((String) arguments, this.argumentSeparator);
StringUtils.delimitedListToStringArray((String) arguments, this.argumentSeparator);
if (stringArray.length == 1) {
Object argument = stringArray[0];
if (argument != null && argument.getClass().isArray()) {
return ObjectUtils.toObjectArray(argument);
}
else {
return new Object[] {argument};
}
}
else {
return stringArray;
}
} }
else if (arguments instanceof Object[]) { else if (arguments instanceof Object[]) {
return (Object[]) arguments; return (Object[]) arguments;
@ -395,7 +382,7 @@ public class MessageTag extends HtmlEscapingAwareTag implements ArgumentAware {
* @throws IOException if writing failed * @throws IOException if writing failed
*/ */
protected void writeMessage(String msg) throws IOException { protected void writeMessage(String msg) throws IOException {
this.pageContext.getOut().write(String.valueOf(msg)); this.pageContext.getOut().write(msg);
} }
/** /**