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java/org/apache/tomcat/buildutil/translate/BackportTranslations.java

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+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You 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.apache.tomcat.buildutil.translate;
+
+import java.io.IOException;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Properties;
+
+/**
+ * Generates a set of translated property files to back-port updates to a
+ * previous version. If the source and target use the same value for the English
+ * key then any translated value for that key is copied from the source to the
+ * target.
+ */
+public class BackportTranslations extends BackportBase {
+
+    public static void main(String... args) throws IOException {
+        BackportTranslations backport = new BackportTranslations(args);
+        backport.execute();
+    }
+
+    protected BackportTranslations(String[] args) throws IOException {
+        super(args);
+    }
+
+
+    @Override
+    protected void execute() throws IOException {
+        for (String langauge : targetTranslations.keySet()) {
+            // Skip source
+            if (langauge.length() == 0) {
+                continue;
+            }
+
+            Properties sourceTranslated = sourceTranslations.get(langauge);
+            Properties targetTranslated = targetTranslations.get(langauge);
+            if (targetTranslated == null) {
+                targetTranslated = new Properties();
+                targetTranslations.put(langauge, targetTranslated);
+            }
+
+            for (Object key : targetEnglish.keySet()) {
+                if (sourceTranslated.containsKey(key) &&
+                        targetEnglish.get(key).equals(sourceEnglish.get(key))) {
+
+                    targetTranslated.put(key, sourceTranslated.get(key));
+                }
+            }
+
+            // Remove translated values for keys that have been removed
+            Iterator<Map.Entry<Object,Object>> iter = targetTranslated.entrySet().iterator();
+            while (iter.hasNext()) {
+                Map.Entry<Object,Object> entry = iter.next();
+                if (!targetEnglish.containsKey(entry.getKey())) {
+                    iter.remove();
+                }
+            }
+            Utils.export(langauge, targetTranslated, storageDir);
+        }
+    }
+}