| /******************************************************************************* |
| * 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.sling.scripting.sightly.impl.filter; |
| |
| import org.apache.sling.scripting.sightly.compiler.RuntimeFunction; |
| import org.apache.sling.scripting.sightly.compiler.expression.Expression; |
| import org.apache.sling.scripting.sightly.compiler.expression.ExpressionNode; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.MapLiteral; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.RuntimeCall; |
| |
| /** |
| * Filter for i18n translation |
| */ |
| public final class I18nFilter extends AbstractFilter { |
| |
| public static final String I18N_OPTION = "i18n"; |
| public static final String HINT_OPTION = "hint"; |
| public static final String LOCALE_OPTION = "locale"; |
| public static final String BASENAME_OPTION = "basename"; |
| |
| private static final class I18nFilterLoader { |
| private static final I18nFilter INSTANCE = new I18nFilter(); |
| } |
| |
| private I18nFilter() { |
| if (I18nFilterLoader.INSTANCE != null) { |
| throw new IllegalStateException("INSTANCE was already defined."); |
| } |
| priority = 90; |
| } |
| |
| public static I18nFilter getInstance() { |
| return I18nFilterLoader.INSTANCE; |
| } |
| |
| @Override |
| public Expression apply(Expression expression, ExpressionContext expressionContext) { |
| if (!expression.containsOption(I18N_OPTION) || expressionContext == ExpressionContext.PLUGIN_DATA_SLY_USE || expressionContext |
| == ExpressionContext.PLUGIN_DATA_SLY_TEMPLATE || expressionContext == ExpressionContext.PLUGIN_DATA_SLY_CALL) { |
| return expression; |
| } |
| ExpressionNode translation = new RuntimeCall(RuntimeFunction.I18N, expression.getRoot(), new MapLiteral |
| (getFilterOptions(expression, HINT_OPTION, LOCALE_OPTION, BASENAME_OPTION))); |
| expression.removeOption(I18N_OPTION); |
| return expression.withNode(translation); |
| } |
| } |