1 package org.apache.velocity.runtime.directive; 2 3 /* 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 22 import org.apache.velocity.context.InternalContextAdapter; 23 import org.apache.velocity.runtime.RuntimeConstants; 24 import org.apache.velocity.runtime.resource.Resource; 25 26 /** 27 * Base class for directives which do input operations 28 * (e.g. <code>#include()</code>, <code>#parse()</code>, etc.). 29 * 30 * @author <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a> 31 * @since 1.4 32 */ 33 public abstract class InputBase extends Directive 34 { 35 /** 36 * Decides the encoding used during input processing of this 37 * directive. 38 * 39 * Get the resource, and assume that we use the encoding of the 40 * current template the 'current resource' can be 41 * <code>null</code> if we are processing a stream.... 42 * 43 * @param context The context to derive the default input encoding 44 * from. 45 * @return The encoding to use when processing this directive. 46 */ getInputEncoding(InternalContextAdapter context)47 protected String getInputEncoding(InternalContextAdapter context) 48 { 49 Resource current = context.getCurrentResource(); 50 if (current != null) 51 { 52 return current.getEncoding(); 53 } 54 else 55 { 56 return (String) rsvc.getProperty(RuntimeConstants.INPUT_ENCODING); 57 } 58 } 59 } 60