| /******************************************************************************* |
| * 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.plugin; |
| |
| import org.apache.sling.scripting.sightly.compiler.RuntimeFunction; |
| import org.apache.sling.scripting.sightly.compiler.commands.VariableBinding; |
| import org.apache.sling.scripting.sightly.impl.compiler.PushStream; |
| import org.apache.sling.scripting.sightly.compiler.expression.Expression; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.MapLiteral; |
| import org.apache.sling.scripting.sightly.compiler.expression.nodes.RuntimeCall; |
| import org.apache.sling.scripting.sightly.impl.compiler.frontend.CompilerContext; |
| |
| public class UsePlugin extends AbstractPlugin { |
| |
| private static final String DEFAULT_VARIABLE_NAME = "useBean"; |
| |
| public UsePlugin() { |
| name = "use"; |
| priority = 1; |
| } |
| |
| @Override |
| public PluginInvoke invoke(final Expression expression, |
| final PluginCallInfo callInfo, |
| final CompilerContext compilerContext) { |
| return new DefaultPluginInvoke() { |
| |
| @Override |
| public void beforeElement(PushStream stream, String tagName) { |
| String variableName = decodeVariableName(); |
| stream.write(new VariableBinding.Global(variableName, |
| new RuntimeCall(RuntimeFunction.USE, expression.getRoot(), new MapLiteral(expression.getOptions())))); |
| } |
| |
| private String decodeVariableName() { |
| String[] arguments = callInfo.getArguments(); |
| if (arguments.length > 0) { |
| return arguments[0]; |
| } |
| return DEFAULT_VARIABLE_NAME; |
| } |
| }; |
| } |
| } |