| /* |
| * 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.instruction; |
| |
| import java.io.ByteArrayInputStream; |
| import java.util.Stack; |
| |
| import org.apache.avalon.framework.service.ServiceManager; |
| import org.apache.cocoon.components.expression.ExpressionContext; |
| 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.script.Invoker; |
| import org.apache.cocoon.template.script.event.Event; |
| import org.apache.cocoon.template.script.event.StartElement; |
| import org.apache.cocoon.xml.IncludeXMLConsumer; |
| import org.apache.cocoon.xml.XMLConsumer; |
| import org.apache.commons.lang.BooleanUtils; |
| import org.apache.excalibur.xml.sax.SAXParser; |
| import org.apache.excalibur.xml.sax.XMLizable; |
| import org.w3c.dom.Node; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.Locator; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.SAXParseException; |
| |
| /** |
| * @version SVN $Id$ |
| */ |
| public class Out extends Instruction { |
| private final JXTExpression compiledExpression; |
| private Boolean xmlize; |
| private Boolean stripRoot; |
| |
| public Out(ParsingContext parsingContext, StartElement raw, Attributes attrs, Stack stack) |
| throws SAXException { |
| |
| super(raw); |
| Locator locator = getLocation(); |
| String value = attrs.getValue("value"); |
| if (value == null) |
| throw new SAXParseException("out: \"value\" is required", locator, null); |
| |
| this.compiledExpression = parsingContext.getStringTemplateParser().compileExpr(value, "out: \"value\": ", locator); |
| String lenientValue = attrs.getValue("lenient"); |
| Boolean lenient = lenientValue == null ? null : Boolean.valueOf(lenientValue); |
| |
| // Why can out be lenient? |
| if (lenient != null) |
| this.compiledExpression.setLenient(lenient); |
| |
| String xmlize = attrs.getValue("xmlize"); |
| this.xmlize = ( xmlize == null ) ? null : Boolean.valueOf( xmlize ); |
| |
| String stripRoot = attrs.getValue("strip-root"); |
| this.stripRoot = ( stripRoot == null ) ? null : Boolean.valueOf( stripRoot ); |
| } |
| |
| public Event execute(final XMLConsumer consumer, |
| ExpressionContext expressionContext, ExecutionContext executionContext, |
| MacroContext macroContext, Event startEvent, Event endEvent) |
| throws SAXException { |
| Object val; |
| try { |
| val = this.compiledExpression.getNode(expressionContext); |
| |
| boolean stripRoot = BooleanUtils.toBoolean(this.stripRoot); |
| //TODO: LG, I do not see a good way to do this. |
| if (BooleanUtils.isTrue(this.xmlize)) { |
| if (val instanceof Node || val instanceof Node[] || val instanceof XMLizable) |
| Invoker.executeNode(consumer, val, stripRoot); |
| else { |
| ServiceManager serviceManager = executionContext.getServiceManager(); |
| SAXParser parser = null; |
| try { |
| parser = (SAXParser) serviceManager.lookup(SAXParser.ROLE); |
| InputSource source = new InputSource(new ByteArrayInputStream(val.toString().getBytes())); |
| IncludeXMLConsumer includeConsumer = new IncludeXMLConsumer(consumer); |
| includeConsumer.setIgnoreRootElement(stripRoot); |
| parser.parse(source, includeConsumer); |
| } finally { |
| serviceManager.release(parser); |
| } |
| } |
| } else |
| Invoker.executeNode(consumer, val, stripRoot); |
| } catch (Exception e) { |
| throw new SAXParseException(e.getMessage(), getLocation(), e); |
| } |
| return getNext(); |
| } |
| } |