com.bstek.dorado.core.resource.DefaultGlobalResourceBundleManager.java Source code

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Here is the source code for com.bstek.dorado.core.resource.DefaultGlobalResourceBundleManager.java

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/*
 * This file is part of Dorado 7.x (http://dorado7.bsdn.org).
 * 
 * Copyright (c) 2002-2012 BSTEK Corp. All rights reserved.
 * 
 * This file is dual-licensed under the AGPLv3 (http://www.gnu.org/licenses/agpl-3.0.html) 
 * and BSDN commercial (http://www.bsdn.org/licenses) licenses.
 * 
 * If you are unsure which license is appropriate for your use, please contact the sales department
 * at http://www.bstek.com/contact.
 */

package com.bstek.dorado.core.resource;

import java.io.InputStream;
import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.Locale;
import java.util.Properties;
import java.util.Set;

import org.apache.commons.lang.StringUtils;

import com.bstek.dorado.core.io.Resource;
import com.bstek.dorado.core.io.ResourceUtils;
import com.bstek.dorado.util.PathUtils;

/**
 * @author Benny Bao (mailto:benny.bao@bstek.com)
 * @since 2012-5-5
 */
public class DefaultGlobalResourceBundleManager extends GlobalResourceBundleManagerSupport {
    private static final String RESOURCE_FILE_SUFFIX = ".properties";

    private Set<String> searchPaths = new LinkedHashSet<String>();

    public void setSearchPaths(Collection<String> searchPaths) {
        addSearchPaths(searchPaths);
    }

    public Collection<String> getSearchPaths() {
        return searchPaths;
    }

    public void addSearchPaths(Collection<String> searchPaths) {
        this.searchPaths.addAll(searchPaths);
    }

    public void addSearchPath(String searchPath) {
        this.searchPaths.add(searchPath);
    }

    @Override
    protected ResourceBundle doGetBundle(String bundleName, Locale locale) throws Exception {
        ResourceBundle bundle = null;
        Resource resource = findResource(bundleName, locale);
        if (resource != null) {
            InputStream in = resource.getInputStream();
            try {
                Properties properties = new Properties();
                properties.load(in);
                bundle = new DefaultResourceBundle(properties);
            } finally {
                in.close();
            }
        }
        // else {
        // throw new FileNotFoundException(
        // "Can not found resource file for \"" + bundleName
        // + "\" in all search paths.");
        // }
        return bundle;
    }

    protected Resource findResource(String bundleName, Locale locale) throws Exception {
        for (String searchPath : searchPaths) {
            Resource resource = findResourceInPath(searchPath, bundleName, locale);
            if (resource != null && resource.exists()) {
                return resource;
            }
        }
        return null;
    }

    protected Resource findResourceInPath(String searchPath, String bundleName, Locale locale) throws Exception {
        Resource resource = null;

        bundleName = StringUtils.replace(bundleName, ".", "/");
        String path = PathUtils.concatPath(searchPath, bundleName);
        if (locale != null) {
            String localeSuffix = '.' + locale.toString();
            resource = ResourceUtils.getResource(path + localeSuffix + RESOURCE_FILE_SUFFIX);
            if (resource != null && resource.exists()) {
                return resource;
            }
        }

        resource = ResourceUtils.getResource(path + RESOURCE_FILE_SUFFIX);
        if (resource != null && resource.exists()) {
            return resource;
        }

        return null;
    }
}