init code

[vfc/nfvo/wfengine.git] / wso2 / baseservice-i18n / src / main / java / org / openo / baseservice / i18n / JsonResourceScanner.java

diff --git a/wso2/baseservice-i18n/src/main/java/org/openo/baseservice/i18n/JsonResourceScanner.java b/wso2/baseservice-i18n/src/main/java/org/openo/baseservice/i18n/JsonResourceScanner.java
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+++ b/wso2/baseservice-i18n/src/main/java/org/openo/baseservice/i18n/JsonResourceScanner.java
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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);
+  }
+}