| /* |
| * 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.synapse.config.xml; |
| |
| import org.apache.axiom.om.OMElement; |
| import org.apache.synapse.Mediator; |
| import org.apache.synapse.mediators.filters.FilterMediator; |
| |
| /** |
| * <pre> |
| * <filter (source="xpath" regex="string") | xpath="xpath"> |
| * mediator+ |
| * </filter> |
| * </pre> |
| * |
| * <p>or if the filter medaitor needs to support the else behavior as well (i.e. a set of mediators |
| * to be executed when the filter evaluates to false).</p> |
| * |
| * <pre> |
| * <filter (source="xpath" regex="string") | xpath="xpath"> |
| * <then [sequence="string"]> |
| * mediator+ |
| * </then> |
| * <else [sequence="string"]> |
| * mediator+ |
| * </else> |
| * </filter> |
| * </pre> |
| */ |
| public class FilterMediatorSerializer extends AbstractListMediatorSerializer { |
| |
| public OMElement serializeSpecificMediator(Mediator m) { |
| |
| if (!(m instanceof FilterMediator)) { |
| handleException("Unsupported mediator passed in for serialization : " + m.getType()); |
| } |
| |
| FilterMediator mediator = (FilterMediator) m; |
| OMElement filter = fac.createOMElement("filter", synNS); |
| |
| if (mediator.getSource() != null && mediator.getRegex() != null) { |
| |
| SynapseXPathSerializer.serializeXPath(mediator.getSource(), filter, "source"); |
| |
| filter.addAttribute(fac.createOMAttribute( |
| "regex", nullNS, mediator.getRegex().pattern())); |
| |
| } else if (mediator.getXpath() != null) { |
| |
| SynapseXPathSerializer.serializeXPath(mediator.getXpath(), filter, "xpath"); |
| |
| } else { |
| handleException("Invalid filter mediator. " + |
| "Should have either a 'source' and a 'regex' OR an 'xpath' "); |
| } |
| |
| saveTracingState(filter, mediator); |
| |
| if (mediator.isThenElementPresent()) { |
| |
| OMElement thenElem = fac.createOMElement("then", synNS); |
| filter.addChild(thenElem); |
| |
| if (mediator.getThenKey() != null) { |
| thenElem.addAttribute( |
| fac.createOMAttribute("sequence", nullNS, mediator.getThenKey())); |
| } else { |
| serializeChildren(thenElem, mediator.getList()); |
| } |
| |
| if (mediator.getElseMediator() != null || mediator.getElseKey() != null) { |
| |
| OMElement elseElem = fac.createOMElement("else", synNS); |
| filter.addChild(elseElem); |
| |
| if (mediator.getElseKey() != null) { |
| elseElem.addAttribute( |
| fac.createOMAttribute("sequence", nullNS, mediator.getElseKey())); |
| } else { |
| serializeChildren(elseElem, mediator.getElseMediator().getList()); |
| } |
| } |
| |
| } else { |
| serializeChildren(filter, mediator.getList()); |
| } |
| |
| return filter; |
| } |
| |
| public String getMediatorClassName() { |
| return FilterMediator.class.getName(); |
| } |
| } |