| /* |
| * Copyright 2001-2004 The Apache Software Foundation. |
| * |
| * Licensed 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.axis2.util; |
| |
| import java.io.OutputStream; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import javax.xml.namespace.QName; |
| import javax.xml.stream.XMLOutputFactory; |
| import javax.xml.stream.XMLStreamWriter; |
| |
| import org.apache.neethi.Assertion; |
| import org.apache.neethi.Constants; |
| import org.apache.neethi.Policy; |
| |
| public class ExternalPolicySerializer { |
| |
| private List assertions2Filter = new ArrayList(); |
| |
| public void addAssertionToFilter(QName name) { |
| assertions2Filter.add(name); |
| } |
| |
| public void setAssertionsToFilter(List assertions2Filter) { |
| this.assertions2Filter = assertions2Filter; |
| } |
| |
| public List getAssertionsToFilter() { |
| return assertions2Filter; |
| } |
| |
| |
| public void serialize(Policy policy, OutputStream os) { |
| |
| try { |
| XMLStreamWriter writer = XMLOutputFactory.newInstance() |
| .createXMLStreamWriter(os); |
| policy = (Policy) policy.normalize(false); |
| |
| String prefix = writer.getPrefix(Constants.ATTR_WSP); |
| String wsuPrefix = writer.getPrefix(Constants.URI_WSU_NS); |
| |
| if (prefix == null) { |
| prefix = Constants.ATTR_WSP; |
| writer.setPrefix(prefix, Constants.URI_POLICY_NS); |
| } |
| |
| if (wsuPrefix == null) { |
| // TODO move this 'wsu' value to Neethi2 constants |
| wsuPrefix = "wsu"; |
| writer.setPrefix(wsuPrefix, Constants.URI_WSU_NS); |
| } |
| |
| // write <wsp:Policy tag |
| |
| writer.writeStartElement(prefix, Constants.ELEM_POLICY, |
| Constants.URI_POLICY_NS); |
| // write xmlns:wsp=".." |
| writer.writeNamespace(prefix, Constants.URI_POLICY_NS); |
| |
| String name = policy.getName(); |
| if (name != null) { |
| // write Name=".." |
| writer.writeAttribute(Constants.ATTR_NAME, name); |
| } |
| |
| String id = policy.getId(); |
| if (id != null) { |
| // write wsu:Id=".." |
| writer.writeAttribute(Constants.ATTR_ID, id); |
| } |
| |
| writer.writeStartElement(Constants.ATTR_WSP, |
| Constants.ELEM_EXACTLYONE, Constants.URI_POLICY_NS); |
| // write <wsp:ExactlyOne> |
| |
| List assertionList; |
| |
| for (Iterator iterator = policy.getAlternatives(); iterator |
| .hasNext();) { |
| |
| assertionList = (List) iterator.next(); |
| |
| // write <wsp:All> |
| writer.writeStartElement(Constants.ATTR_WSP, Constants.ELEM_ALL, Constants.URI_POLICY_NS); |
| |
| Assertion assertion; |
| |
| for (Iterator assertions = assertionList.iterator(); assertions |
| .hasNext();) { |
| assertion = (Assertion) assertions.next(); |
| if (assertions2Filter.contains(assertion.getName())) { |
| // since this is an assertion to filter, we will not serialize this |
| continue; |
| } |
| assertion.serialize(writer); |
| } |
| |
| // write </wsp:All> |
| writer.writeEndElement(); |
| } |
| |
| // write </wsp:ExactlyOne> |
| writer.writeEndElement(); |
| // write </wsp:Policy> |
| writer.writeEndElement(); |
| |
| writer.flush(); |
| |
| } catch (Exception ex) { |
| |
| throw new RuntimeException(ex); |
| |
| } |
| } |
| } |