| /* |
| * 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.cocoon.template.script.event; |
| |
| import java.util.Iterator; |
| |
| import org.apache.cocoon.components.expression.ExpressionContext; |
| import org.apache.cocoon.template.environment.ErrorHolder; |
| import org.apache.cocoon.template.environment.ExecutionContext; |
| import org.apache.cocoon.template.environment.ParsingContext; |
| import org.apache.cocoon.template.expression.JXTExpression; |
| import org.apache.cocoon.template.expression.Literal; |
| import org.apache.cocoon.template.expression.Substitutions; |
| import org.apache.commons.lang.ArrayUtils; |
| import org.xml.sax.Locator; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.SAXParseException; |
| |
| /** |
| * @version SVN $Id$ |
| */ |
| public class TextEvent extends Event { |
| public TextEvent(ParsingContext parsingContext, Locator location, char[] chars, int start, int length) |
| throws SAXException { |
| super(location); |
| this.raw = new char[length]; |
| System.arraycopy(chars, start, this.raw, 0, length); |
| this.substitutions = new Substitutions(parsingContext, getLocation(), chars, start, length); |
| } |
| |
| final Substitutions substitutions; |
| final char[] raw; |
| |
| public char[] getRaw() { |
| return raw; |
| } |
| |
| public Substitutions getSubstitutions() { |
| return substitutions; |
| } |
| |
| interface CharHandler { |
| public void characters(char[] ch, int offset, int length) |
| throws SAXException; |
| } |
| |
| protected static void characters(ExpressionContext expressionContext, |
| ExecutionContext executionContext, |
| TextEvent event, CharHandler handler) |
| throws SAXException { |
| Iterator iter = event.getSubstitutions().iterator(); |
| while (iter.hasNext()) { |
| Object subst = iter.next(); |
| char[] chars; |
| if (subst instanceof Literal) { |
| chars = ((Literal) subst).getCharArray(); |
| } else { |
| JXTExpression expr = (JXTExpression) subst; |
| try { |
| Object val = expr.getValue(expressionContext); |
| chars = val != null ? val.toString().toCharArray() |
| : ArrayUtils.EMPTY_CHAR_ARRAY; |
| } catch (Exception e) { |
| throw new SAXParseException(e.getMessage(), event |
| .getLocation(), e); |
| } catch (Error err) { |
| throw new SAXParseException(err.getMessage(), event |
| .getLocation(), new ErrorHolder(err)); |
| } |
| } |
| handler.characters(chars, 0, chars.length); |
| } |
| } |
| |
| |
| } |