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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
RequestLocaleManagerImpl.java | 100% | 94.7% | 100% | 96.7% |
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// Copyright 2004, 2005 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.tapestry.services.impl;
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import java.util.Locale;
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import org.apache.hivemind.service.ThreadLocale;
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import org.apache.tapestry.TapestryConstants;
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import org.apache.tapestry.services.CookieSource;
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import org.apache.tapestry.services.RequestLocaleManager;
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import org.apache.tapestry.util.StringSplitter;
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import org.apache.tapestry.web.WebRequest;
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/**
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* Identifies the Locale provided by the client (either in a Tapestry-specific cookie, or
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* interpolated from the HTTP header. TODO: Add the ability to "filter down" Locales down to a
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* predifined set (specified using some form of HiveMInd configuration).
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*
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* @author Howard Lewis Ship
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* @since 4.0
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*/
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public class RequestLocaleManagerImpl implements RequestLocaleManager |
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{ |
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private WebRequest _request;
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/**
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* Extracted at start of request, and used at end of request to see if locale has changed.
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* Because of this thread-specific state, the service must use the threaded service lifecycle
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* model.
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*/
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private Locale _requestLocale;
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private CookieSource _cookieSource;
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private ThreadLocale _threadLocale;
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public Locale extractLocaleForCurrentRequest()
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{ |
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String localeName = _cookieSource.readCookieValue(TapestryConstants.LOCALE_COOKIE_NAME); |
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_requestLocale = (localeName != null) ? getLocale(localeName) : _request.getLocale();
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_threadLocale.setLocale(_requestLocale); |
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return _requestLocale;
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} |
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public void persistLocale() |
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{ |
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Locale locale = _threadLocale.getLocale(); |
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if (locale.equals(_requestLocale))
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return;
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_cookieSource.writeCookieValue(TapestryConstants.LOCALE_COOKIE_NAME, locale.toString()); |
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} |
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private Locale getLocale(String name)
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{ |
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// There used to be a cache of Locale (keyed on name), but since this service is
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// threaded, there's no point (short of making it static, which is too ugly for words).
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// Instead, we should have a LocaleCache service for that purpose. Have to balance
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// cost of invoking that service vs. the cost of creating new Locale instances all the time.
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return constructLocale(name);
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} |
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private Locale constructLocale(String name)
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{ |
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StringSplitter splitter = new StringSplitter('_');
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String[] terms = splitter.splitToArray(name); |
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switch (terms.length)
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{ |
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case 1:
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return new Locale(terms[0], ""); |
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case 2:
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return new Locale(terms[0], terms[1]); |
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case 3:
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return new Locale(terms[0], terms[1], terms[2]); |
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default:
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throw new IllegalArgumentException(); |
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} |
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} |
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public void setCookieSource(CookieSource source) |
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{ |
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_cookieSource = source; |
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} |
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public void setRequest(WebRequest request) |
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{ |
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_request = request; |
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} |
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public void setThreadLocale(ThreadLocale threadLocale) |
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{ |
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_threadLocale = threadLocale; |
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} |
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} |
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