org.springframework.context.support.ReloadableResourceBundleMessageSourceCustom Maven / Gradle / Ivy

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package org.springframework.context.support;

import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.Locale;

import org.springframework.core.io.Resource;
import org.springframework.util.Assert;
import org.springframework.web.util.UriComponentsBuilder;

/**
 * @see org.springframework.context.support.ReloadableResourceBundleMessageSource#clearCacheIncludingAncestors()
 * @see org.springframework.context.support.ReloadableResourceBundleMessageSource#getMergedProperties(Locale)
 */
public class ReloadableResourceBundleMessageSourceCustom extends ReloadableResourceBundleMessageSource {
  private Collection getFiles(File file, FileFilter filter) {
    Assert.notNull(file, "'file' must not be null");
    Assert.notNull(filter, "'filter' must not be null");
    Collection collection = new LinkedHashSet();
    File[] files = file.listFiles(filter);
    if (files == null || files.length == 0) {
      return Collections.emptySet();
    }
    for (File listFile : files) {
      if (listFile.isDirectory()) {
        collection.addAll(getFiles(listFile, filter));
      }
      else {
        collection.add(listFile);
      }
    }
    return collection;
  }

  private boolean isBasename(String filename) {
    if (filename == null) {
      return false;
    }
    for (Locale locale : Locale.getAvailableLocales()) {
      if (!locale.equals(Locale.ROOT) && filename.endsWith('_' + locale.toString())) {
        return false;
      }
    }
    return true;
  }

  public void setResource(Resource resource) {
    if (resource != null && resource.exists()) {
      try {
        File location = resource.getFile();
        if (location.exists() && location.isDirectory()) {
          for (File listFile : getFiles(location, new FileFilter() {
            @Override
            public boolean accept(File pathname) {
              if (pathname.isDirectory()) {
                return true;
              }
              return pathname.getName().toLowerCase().endsWith(".properties");
            }
          })) {
            String uri = UriComponentsBuilder.fromUri(listFile.toURI()).build().toUriString();
            String filename = (filename = listFile.getName()).substring(0, filename.length() - ".properties".length());
            if (isBasename(filename)) {
              addBasenames(uri.substring(0, uri.length() - ".properties".length()));
            }
          }
        }
      }
      catch (IOException e) {
        if (logger.isWarnEnabled()) {
          logger.warn("resource fail..." + e.getMessage());
        }
      }
    }
  }
  /**
   * @see java.net.URL#toExternalForm()
   */
  // @Override
  // protected PropertiesHolder refreshProperties(String filename, PropertiesHolder propHolder) {
  // if (StringUtils.startsWithIgnoreCase(filename, ConstantUtil.PREFIX_CLASSPATH_ALL_URL)) {
  // long fileTimestamp = -1L;
  // for (Resource resource : ConstantUtil.getResources(filename + ConstantUtil.SUFFIX_PROPERTIES)) {
  // String resourceFilename = resource.getFilename();
  // if ((filename.contains("_") && !resourceFilename.contains("_")) || (!filename.contains("_") && resourceFilename.contains("_"))) {
  // continue;
  // }
  // Properties properties = propHolder.getProperties() == null ? (propHolder = new PropertiesHolder((properties = new Properties()), fileTimestamp)).getProperties() : propHolder.getProperties();
  // try {
  // String uri = resource.getURI().toString();
  // properties.putAll(super.refreshProperties(uri.substring(0, uri.length() - ConstantUtil.SUFFIX_PROPERTIES.length()), propHolder).getProperties());
  // if (fileTimestamp < resource.lastModified()) {
  // propHolder.setRefreshTimestamp(resource.lastModified());
  // }
  // }
  // catch (IOException | NullPointerException e) {
  // logger.warn("Refresh Properties fail... from " + filename + " (" + e.getMessage() + ")");
  // }
  // }
  // return propHolder;
  // }
  // return super.refreshProperties(filename, propHolder);
  // }
}