Source Code Cross Referenced for ExternalPolicySerializer.java in  » Web-Services-AXIS2 » kernal » org » apache » axis2 » util » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Services AXIS2 » kernal » org.apache.axis2.util 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Licensed to the Apache Software Foundation (ASF) under one
003:         * or more contributor license agreements. See the NOTICE file
004:         * distributed with this work for additional information
005:         * regarding copyright ownership. The ASF licenses this file
006:         * to you under the Apache License, Version 2.0 (the
007:         * "License"); you may not use this file except in compliance
008:         * with the License. You may obtain a copy of the License at
009:         *
010:         * http://www.apache.org/licenses/LICENSE-2.0
011:         *
012:         * Unless required by applicable law or agreed to in writing,
013:         * software distributed under the License is distributed on an
014:         * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015:         * KIND, either express or implied. See the License for the
016:         * specific language governing permissions and limitations
017:         * under the License.
018:         */
019:        package org.apache.axis2.util;
020:
021:        import org.apache.neethi.Assertion;
022:        import org.apache.neethi.Constants;
023:        import org.apache.neethi.Policy;
024:
025:        import javax.xml.namespace.QName;
026:        import javax.xml.stream.XMLOutputFactory;
027:        import javax.xml.stream.XMLStreamWriter;
028:        import java.io.OutputStream;
029:        import java.util.ArrayList;
030:        import java.util.Iterator;
031:        import java.util.List;
032:
033:        public class ExternalPolicySerializer {
034:
035:            private List assertions2Filter = new ArrayList();
036:
037:            public void addAssertionToFilter(QName name) {
038:                assertions2Filter.add(name);
039:            }
040:
041:            public void setAssertionsToFilter(List assertions2Filter) {
042:                this .assertions2Filter = assertions2Filter;
043:            }
044:
045:            public List getAssertionsToFilter() {
046:                return assertions2Filter;
047:            }
048:
049:            public void serialize(Policy policy, OutputStream os) {
050:
051:                try {
052:                    XMLStreamWriter writer = XMLOutputFactory.newInstance()
053:                            .createXMLStreamWriter(os);
054:                    policy = (Policy) policy.normalize(false);
055:
056:                    String prefix = writer.getPrefix(Constants.ATTR_WSP);
057:                    String wsuPrefix = writer.getPrefix(Constants.URI_WSU_NS);
058:
059:                    if (prefix == null) {
060:                        prefix = Constants.ATTR_WSP;
061:                        writer.setPrefix(prefix, Constants.URI_POLICY_NS);
062:                    }
063:
064:                    if (wsuPrefix == null) {
065:                        // TODO move this 'wsu' value to Neethi2 constants
066:                        wsuPrefix = "wsu";
067:                        writer.setPrefix(wsuPrefix, Constants.URI_WSU_NS);
068:                    }
069:
070:                    // write <wsp:Policy tag
071:
072:                    writer.writeStartElement(prefix, Constants.ELEM_POLICY,
073:                            Constants.URI_POLICY_NS);
074:                    // write xmlns:wsp=".."
075:                    writer.writeNamespace(prefix, Constants.URI_POLICY_NS);
076:
077:                    String name = policy.getName();
078:                    if (name != null) {
079:                        // write Name=".."
080:                        writer.writeAttribute(Constants.ATTR_NAME, name);
081:                    }
082:
083:                    String id = policy.getId();
084:                    if (id != null) {
085:                        // write wsu:Id=".."
086:                        writer.writeAttribute(Constants.ATTR_ID, id);
087:                    }
088:
089:                    writer.writeStartElement(Constants.ATTR_WSP,
090:                            Constants.ELEM_EXACTLYONE, Constants.URI_POLICY_NS);
091:                    // write <wsp:ExactlyOne>
092:
093:                    List assertionList;
094:
095:                    for (Iterator iterator = policy.getAlternatives(); iterator
096:                            .hasNext();) {
097:
098:                        assertionList = (List) iterator.next();
099:
100:                        // write <wsp:All>
101:                        writer.writeStartElement(Constants.ATTR_WSP,
102:                                Constants.ELEM_ALL, Constants.URI_POLICY_NS);
103:
104:                        Assertion assertion;
105:
106:                        for (Iterator assertions = assertionList.iterator(); assertions
107:                                .hasNext();) {
108:                            assertion = (Assertion) assertions.next();
109:                            if (assertions2Filter.contains(assertion.getName())) {
110:                                // since this is an assertion to filter, we will not serialize this
111:                                continue;
112:                            }
113:                            assertion.serialize(writer);
114:                        }
115:
116:                        // write </wsp:All>
117:                        writer.writeEndElement();
118:                    }
119:
120:                    // write </wsp:ExactlyOne>
121:                    writer.writeEndElement();
122:                    // write </wsp:Policy>
123:                    writer.writeEndElement();
124:
125:                    writer.flush();
126:
127:                } catch (Exception ex) {
128:
129:                    throw new RuntimeException(ex);
130:
131:                }
132:            }
133:        }
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