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/**
* Copyright 2017 ZTE Corporation.
*
* Licensed 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.openo.baseservice.i18n;
import org.reflections.Reflections;
import org.reflections.scanners.ResourcesScanner;
import org.reflections.util.ClasspathHelper;
import org.reflections.util.ConfigurationBuilder;
import java.io.File;
import java.net.URL;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.Set;
import java.util.regex.Pattern;
final class JsonResourceScanner {
private static final org.slf4j.Logger LOG =
org.slf4j.LoggerFactory.getLogger(JsonResourceScanner.class);
private static final Pattern PATTERN_OF_I18N_FILE_NAME =
Pattern.compile(".*?\\-i18n\\-.*?\\.json");
private static final Pattern PATTERN_OF_ERROR_CODE_FILE_NAME =
Pattern.compile(".*?\\-errorcode\\-.*?\\.json");
private static Collection<String> findFromClassPath(Pattern pattern) {
ConfigurationBuilder configurationBuilder = new ConfigurationBuilder();
Collection<URL> urls = ClasspathHelper.forJavaClassPath();
for (Iterator<URL> iter = urls.iterator(); iter.hasNext();) {
URL url = iter.next();
boolean exist = false;
try {
exist = new File(url.getFile()).exists();
if (!exist) {
LOG.info("class path url ignored for not exists: " + url.toString());
}
} catch (Exception e) {
LOG.info("class path url ignored for exception: " + url.toString(), e);
exist = false;
}
if (!exist) {
iter.remove();
}
}
for (URL url : urls) {
LOG.info("class path url:" + url.toString());
}
configurationBuilder.addUrls(urls);
configurationBuilder.setScanners(new ResourcesScanner());
configurationBuilder.useParallelExecutor();
Reflections reflections = new Reflections(configurationBuilder);
Set<String> results = reflections.getResources(pattern);
if (results == null) {
return Collections.emptySet();
} else {
return results;
}
}
static Collection<String> findI18nPaths() {
return findFromClassPath(PATTERN_OF_I18N_FILE_NAME);
}
static Collection<String> findErrorCodePaths() {
return findFromClassPath(PATTERN_OF_ERROR_CODE_FILE_NAME);
}
}
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