Author: jboynes
Date: Sun Feb 3 00:43:10 2013
New Revision: 1441843
URL: http://svn.apache.org/viewvc?rev=1441843&view=rev
Log:
refactor parsing of attributes used to specify a locale
Added:
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtil.java
(with props)
Modified:
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/common/fmt/SetLocaleSupport.java
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/rt/fmt/ParseDateTag.java
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/rt/fmt/ParseNumberTag.java
tomcat/taglibs/standard/trunk/impl/src/test/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtilTest.java
(contents, props changed)
tomcat/taglibs/standard/trunk/jstlel/src/main/java/org/apache/taglibs/standard/tag/el/fmt/ParseDateTag.java
tomcat/taglibs/standard/trunk/jstlel/src/main/java/org/apache/taglibs/standard/tag/el/fmt/ParseNumberTag.java
Added:
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtil.java
URL:
http://svn.apache.org/viewvc/tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtil.java?rev=1441843&view=auto
==============================================================================
---
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtil.java
(added)
+++
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtil.java
Sun Feb 3 00:43:10 2013
@@ -0,0 +1,103 @@
+/*
+ * 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.taglibs.standard.tag.common.fmt;
+
+import org.apache.taglibs.standard.resources.Resources;
+
+import java.util.Locale;
+
+/**
+ * Utility functions for working with Locales.
+ *
+ * This implementation sticks with the Locale parsing rules defined by the
JSTL Specification.
+ * When permitted, this should be updated to use the richer Locale parsing
rules provided
+ * in Java 7 and later.
+ *
+ */
+public class LocaleUtil {
+ private static final char HYPHEN = '-';
+ private static final char UNDERSCORE = '_';
+
+ /**
+ * Handles Locales that can be passed to tags as instances of String or
Locale.
+ * If the parameter is an instance of Locale, it is simply returned.
+ * If the parameter is a String and is not empty, then it is parsed to a
Locale
+ * using {@link LocaleUtil#parseLocale(String)}.
+ * Otherwise null will be returned.
+ *
+ * @param stringOrLocale locale represented as an instance of Locale or as
a String
+ * @return the locale represented by the parameter, or null if the
parameter is undefined
+ */
+ public static Locale parseLocale(Object stringOrLocale) {
+ if (stringOrLocale instanceof Locale) {
+ return (Locale) stringOrLocale;
+ } else if (stringOrLocale instanceof String) {
+ String string = (String) stringOrLocale;
+ if (string.length() == 0) {
+ return null;
+ } else {
+ return parseLocale(string.trim());
+ }
+ } else {
+ return null;
+ }
+ }
+
+ /**
+ * See parseLocale(String, String) for details.
+ */
+ public static Locale parseLocale(String locale) {
+ return parseLocale(locale, null);
+ }
+
+ /**
+ * Parses the given locale string into its language and (optionally)
+ * country components, and returns the corresponding {@link Locale} object.
+ *
+ * @param locale the locale string to parse; must not be null or empty
+ * @param variant the variant
+ * @return the specified Locale
+ * @throws IllegalArgumentException if the given locale does not have a
+ * language component or has an empty
country component
+ */
+ public static Locale parseLocale(String locale, String variant) {
+
+ String language;
+ String country;
+ int index;
+
+ if (((index = locale.indexOf(HYPHEN)) > -1) || ((index =
locale.indexOf(UNDERSCORE)) > -1)) {
+ if (index == 0) {
+ throw new
IllegalArgumentException(Resources.getMessage("LOCALE_NO_LANGUAGE"));
+ } else if (index == locale.length() - 1) {
+ throw new
IllegalArgumentException(Resources.getMessage("LOCALE_EMPTY_COUNTRY"));
+ }
+ language = locale.substring(0, index);
+ country = locale.substring(index + 1);
+ } else {
+ language = locale;
+ country = "";
+ }
+
+ if (variant != null) {
+ return new Locale(language, country, variant);
+ } else {
+ return new Locale(language, country);
+ }
+ }
+}
Propchange:
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtil.java
------------------------------------------------------------------------------
svn:eol-style = native
Propchange:
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtil.java
------------------------------------------------------------------------------
svn:keywords = Author Date Id Revision
Modified:
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/common/fmt/SetLocaleSupport.java
URL:
http://svn.apache.org/viewvc/tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/common/fmt/SetLocaleSupport.java?rev=1441843&r1=1441842&r2=1441843&view=diff
==============================================================================
---
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/common/fmt/SetLocaleSupport.java
(original)
+++
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/common/fmt/SetLocaleSupport.java
Sun Feb 3 00:43:10 2013
@@ -33,7 +33,6 @@ import javax.servlet.jsp.jstl.fmt.Locali
import javax.servlet.jsp.tagext.Tag;
import javax.servlet.jsp.tagext.TagSupport;
-import org.apache.taglibs.standard.resources.Resources;
import org.apache.taglibs.standard.tag.common.core.Util;
/**
@@ -49,9 +48,6 @@ public abstract class SetLocaleSupport e
//*********************************************************************
// Private constants
- private static final char HYPHEN = '-';
- private static final char UNDERSCORE = '_';
-
//*********************************************************************
// Protected state
@@ -95,16 +91,12 @@ public abstract class SetLocaleSupport e
public int doEndTag() throws JspException {
Locale locale;
- if (value == null) {
- locale = Locale.getDefault();
- } else if (value instanceof String) {
- if (((String) value).trim().equals("")) {
- locale = Locale.getDefault();
- } else {
- locale = parseLocale((String) value, variant);
- }
- } else {
+ if (value instanceof Locale) {
locale = (Locale) value;
+ } else if (value instanceof String &&
!"".equals(((String)value).trim())) {
+ locale = LocaleUtil.parseLocale((String) value, variant);
+ } else {
+ locale = Locale.getDefault();
}
Config.set(pageContext, Config.FMT_LOCALE, locale, scope);
@@ -124,66 +116,6 @@ public abstract class SetLocaleSupport e
//*********************************************************************
// Public utility methods
- /**
- * See parseLocale(String, String) for details.
- */
- public static Locale parseLocale(String locale) {
- return parseLocale(locale, null);
- }
-
- /**
- * Parses the given locale string into its language and (optionally)
- * country components, and returns the corresponding
- * <tt>java.util.Locale</tt> object.
- * <p>If the given locale string is null or empty, the runtime's default
- * locale is returned.
- *
- * @param locale the locale string to parse
- * @param variant the variant
- * @return <tt>java.util.Locale</tt> object corresponding to the given
- * locale string, or the runtime's default locale if the locale
string is
- * null or empty
- * @throws IllegalArgumentException if the given locale does not have a
- * language component or has an empty
country component
- */
- public static Locale parseLocale(String locale, String variant) {
-
- Locale ret;
- String language = locale;
- String country = null;
- int index;
-
- if (((index = locale.indexOf(HYPHEN)) > -1)
- || ((index = locale.indexOf(UNDERSCORE)) > -1)) {
- language = locale.substring(0, index);
- country = locale.substring(index + 1);
- }
-
- if ((language == null) || (language.length() == 0)) {
- throw new IllegalArgumentException(
- Resources.getMessage("LOCALE_NO_LANGUAGE"));
- }
-
- if (country == null) {
- if (variant != null) {
- ret = new Locale(language, "", variant);
- } else {
- ret = new Locale(language, "");
- }
- } else if (country.length() > 0) {
- if (variant != null) {
- ret = new Locale(language, country, variant);
- } else {
- ret = new Locale(language, country);
- }
- } else {
- throw new IllegalArgumentException(
- Resources.getMessage("LOCALE_EMPTY_COUNTRY"));
- }
-
- return ret;
- }
-
//*********************************************************************
// Package-scoped utility methods
@@ -381,7 +313,7 @@ public abstract class SetLocaleSupport e
if (obj instanceof Locale) {
loc = (Locale) obj;
} else {
- loc = parseLocale((String) obj);
+ loc = LocaleUtil.parseLocale((String) obj);
}
}
Modified:
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/rt/fmt/ParseDateTag.java
URL:
http://svn.apache.org/viewvc/tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/rt/fmt/ParseDateTag.java?rev=1441843&r1=1441842&r2=1441843&view=diff
==============================================================================
---
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/rt/fmt/ParseDateTag.java
(original)
+++
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/rt/fmt/ParseDateTag.java
Sun Feb 3 00:43:10 2013
@@ -21,8 +21,8 @@ import java.util.Locale;
import javax.servlet.jsp.JspTagException;
+import org.apache.taglibs.standard.tag.common.fmt.LocaleUtil;
import org.apache.taglibs.standard.tag.common.fmt.ParseDateSupport;
-import org.apache.taglibs.standard.tag.common.fmt.SetLocaleSupport;
/**
* <p>A handler for <parseDate> that supports rtexprvalue-based
@@ -76,15 +76,9 @@ public class ParseDateTag extends ParseD
// 'parseLocale' attribute
public void setParseLocale(Object loc) throws JspTagException {
+ Locale locale = LocaleUtil.parseLocale(loc);
if (loc != null) {
- if (loc instanceof Locale) {
- this.parseLocale = (Locale) loc;
- } else {
- if (!"".equals((String) loc)) {
- this.parseLocale = SetLocaleSupport.parseLocale((String)
- loc);
- }
- }
+ this.parseLocale = locale;
}
}
}
Modified:
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/rt/fmt/ParseNumberTag.java
URL:
http://svn.apache.org/viewvc/tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/rt/fmt/ParseNumberTag.java?rev=1441843&r1=1441842&r2=1441843&view=diff
==============================================================================
---
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/rt/fmt/ParseNumberTag.java
(original)
+++
tomcat/taglibs/standard/trunk/impl/src/main/java/org/apache/taglibs/standard/tag/rt/fmt/ParseNumberTag.java
Sun Feb 3 00:43:10 2013
@@ -21,8 +21,8 @@ import java.util.Locale;
import javax.servlet.jsp.JspTagException;
+import org.apache.taglibs.standard.tag.common.fmt.LocaleUtil;
import org.apache.taglibs.standard.tag.common.fmt.ParseNumberSupport;
-import org.apache.taglibs.standard.tag.common.fmt.SetLocaleSupport;
/**
* <p>A handler for <parseNumber> that supports rtexprvalue-based
@@ -58,15 +58,9 @@ public class ParseNumberTag extends Pars
// 'parseLocale' attribute
public void setParseLocale(Object loc) throws JspTagException {
+ Locale locale = LocaleUtil.parseLocale(loc);
if (loc != null) {
- if (loc instanceof Locale) {
- this.parseLocale = (Locale) loc;
- } else {
- if (!"".equals((String) loc)) {
- this.parseLocale = SetLocaleSupport.parseLocale((String)
- loc);
- }
- }
+ this.parseLocale = locale;
}
}
Modified:
tomcat/taglibs/standard/trunk/impl/src/test/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtilTest.java
URL:
http://svn.apache.org/viewvc/tomcat/taglibs/standard/trunk/impl/src/test/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtilTest.java?rev=1441843&r1=1441842&r2=1441843&view=diff
==============================================================================
---
tomcat/taglibs/standard/trunk/impl/src/test/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtilTest.java
(original)
+++
tomcat/taglibs/standard/trunk/impl/src/test/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtilTest.java
Sun Feb 3 00:43:10 2013
@@ -17,7 +17,6 @@
package org.apache.taglibs.standard.tag.common.fmt;
import junit.framework.Assert;
-import org.junit.Ignore;
import org.junit.Test;
import java.util.Locale;
@@ -27,49 +26,38 @@ public class LocaleUtilTest {
private static final Locale DEFAULT = Locale.getDefault();
@Test
- @Ignore("original causes NPE")
- public void testUsesDefaultIfNull() {
- Assert.assertEquals(DEFAULT, SetLocaleSupport.parseLocale(null, null));
- }
-
- @Test
- @Ignore("original results in IllegalArgumentException")
- public void testUsesDefaultIfEmpty() {
- Assert.assertEquals(DEFAULT, SetLocaleSupport.parseLocale("", null));
- }
-
- @Test
public void testLocaleWithLanguage() {
- Assert.assertEquals(new Locale("fr"),
SetLocaleSupport.parseLocale("fr", null));
+ Assert.assertEquals(new Locale("fr"), LocaleUtil.parseLocale("fr",
null));
}
@Test
public void testLocaleUsingHyphen() {
- Assert.assertEquals(new Locale("en", "DE"),
SetLocaleSupport.parseLocale("en-DE", null));
+ Assert.assertEquals(new Locale("en", "DE"),
LocaleUtil.parseLocale("en-DE", null));
}
@Test
public void testLocaleUsingUnderscore() {
- Assert.assertEquals(new Locale("en", "IE"),
SetLocaleSupport.parseLocale("en_IE", null));
+ Assert.assertEquals(new Locale("en", "IE"),
LocaleUtil.parseLocale("en_IE", null));
+ Assert.assertEquals(new Locale("en", "IE"),
LocaleUtil.parseLocale("en_IE"));
}
@Test
public void testLocaleWithLanguageVariant() {
- Assert.assertEquals(new Locale("fr", "", "xxx"),
SetLocaleSupport.parseLocale("fr", "xxx"));
+ Assert.assertEquals(new Locale("fr", "", "xxx"),
LocaleUtil.parseLocale("fr", "xxx"));
}
@Test
public void testLocaleWithLanguageCountryVariant() {
- Assert.assertEquals(new Locale("en", "GB", "cockney"),
SetLocaleSupport.parseLocale("en-GB", "cockney"));
+ Assert.assertEquals(new Locale("en", "GB", "cockney"),
LocaleUtil.parseLocale("en-GB", "cockney"));
}
@Test(expected = IllegalArgumentException.class)
public void testEmptyLanguageIsInvalid() {
- SetLocaleSupport.parseLocale("-GB", null);
+ LocaleUtil.parseLocale("-GB", null);
}
@Test(expected = IllegalArgumentException.class)
public void testEmptyCountryIsInvalid() {
- SetLocaleSupport.parseLocale("en-", null);
+ LocaleUtil.parseLocale("en-", null);
}
}
Propchange:
tomcat/taglibs/standard/trunk/impl/src/test/java/org/apache/taglibs/standard/tag/common/fmt/LocaleUtilTest.java
------------------------------------------------------------------------------
svn:keywords = Author Date Id Revision
Modified:
tomcat/taglibs/standard/trunk/jstlel/src/main/java/org/apache/taglibs/standard/tag/el/fmt/ParseDateTag.java
URL:
http://svn.apache.org/viewvc/tomcat/taglibs/standard/trunk/jstlel/src/main/java/org/apache/taglibs/standard/tag/el/fmt/ParseDateTag.java?rev=1441843&r1=1441842&r2=1441843&view=diff
==============================================================================
---
tomcat/taglibs/standard/trunk/jstlel/src/main/java/org/apache/taglibs/standard/tag/el/fmt/ParseDateTag.java
(original)
+++
tomcat/taglibs/standard/trunk/jstlel/src/main/java/org/apache/taglibs/standard/tag/el/fmt/ParseDateTag.java
Sun Feb 3 00:43:10 2013
@@ -22,8 +22,8 @@ import java.util.Locale;
import javax.servlet.jsp.JspException;
import org.apache.taglibs.standard.lang.support.ExpressionEvaluatorManager;
+import org.apache.taglibs.standard.tag.common.fmt.LocaleUtil;
import org.apache.taglibs.standard.tag.common.fmt.ParseDateSupport;
-import org.apache.taglibs.standard.tag.common.fmt.SetLocaleSupport;
/**
* <p>A handler for <parseDate> that accepts attributes as Strings
@@ -191,15 +191,9 @@ public class ParseDateTag extends ParseD
if (parseLocale_ != null) {
Object obj = ExpressionEvaluatorManager.evaluate(
"parseLocale", parseLocale_, Object.class, this,
pageContext);
- if (obj != null) {
- if (obj instanceof Locale) {
- parseLocale = (Locale) obj;
- } else {
- String localeStr = (String) obj;
- if (!"".equals(localeStr)) {
- parseLocale = SetLocaleSupport.parseLocale(localeStr);
- }
- }
+ Locale locale = LocaleUtil.parseLocale(obj);
+ if (locale != null) {
+ this.parseLocale = locale;
}
}
}
Modified:
tomcat/taglibs/standard/trunk/jstlel/src/main/java/org/apache/taglibs/standard/tag/el/fmt/ParseNumberTag.java
URL:
http://svn.apache.org/viewvc/tomcat/taglibs/standard/trunk/jstlel/src/main/java/org/apache/taglibs/standard/tag/el/fmt/ParseNumberTag.java?rev=1441843&r1=1441842&r2=1441843&view=diff
==============================================================================
---
tomcat/taglibs/standard/trunk/jstlel/src/main/java/org/apache/taglibs/standard/tag/el/fmt/ParseNumberTag.java
(original)
+++
tomcat/taglibs/standard/trunk/jstlel/src/main/java/org/apache/taglibs/standard/tag/el/fmt/ParseNumberTag.java
Sun Feb 3 00:43:10 2013
@@ -22,8 +22,8 @@ import java.util.Locale;
import javax.servlet.jsp.JspException;
import org.apache.taglibs.standard.lang.support.ExpressionEvaluatorManager;
+import org.apache.taglibs.standard.tag.common.fmt.LocaleUtil;
import org.apache.taglibs.standard.tag.common.fmt.ParseNumberSupport;
-import org.apache.taglibs.standard.tag.common.fmt.SetLocaleSupport;
/**
* <p>A handler for <parseNumber> that accepts attributes as Strings
@@ -161,15 +161,9 @@ public class ParseNumberTag extends Pars
if (parseLocale_ != null) {
obj = ExpressionEvaluatorManager.evaluate(
"parseLocale", parseLocale_, Object.class, this,
pageContext);
- if (obj != null) {
- if (obj instanceof Locale) {
- parseLocale = (Locale) obj;
- } else {
- String localeStr = (String) obj;
- if (!"".equals(localeStr)) {
- parseLocale = SetLocaleSupport.parseLocale(localeStr);
- }
- }
+ Locale locale = LocaleUtil.parseLocale(obj);
+ if (locale != null) {
+ this.parseLocale = locale;
}
}
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