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/*
* 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.tuscany.sca.policy.recoveryrules;
import java.io.InputStream;
import java.io.StringWriter;
import java.net.URL;
import java.util.Iterator;
import java.util.Map;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.junit.Test;
import org.apache.axiom.om.OMAttribute;
import org.apache.axiom.om.OMElement;
import org.apache.tuscany.sca.guardian.Constants;
public class PolicyReadTestCase {
@Test
public void testPolicyReading() throws Exception {
RecoveryRulesPolicyProcessor processor = new RecoveryRulesPolicyProcessor(null, null);
URL url = getClass().getResource("test_policies.xml");
XMLInputFactory inputFactory = XMLInputFactory.newInstance();
InputStream urlStream = url.openStream();
XMLStreamReader reader = inputFactory.createXMLStreamReader(urlStream);
RecoveryRulesPolicy policy = processor.read(reader);
Map<String, OMElement> map = policy.getRuleElements();
StringWriter sw = new StringWriter();
XMLStreamWriter writter = XMLOutputFactory.newInstance().createXMLStreamWriter(sw);
writter.writeStartDocument();
writter.writeStartElement(Constants.RECOVERY_RULES);
writeElements(map.values().iterator(), writter);
writter.writeEndElement();
writter.writeEndDocument();
writter.close();
System.out.println(sw.toString());
}
private void writeElements(Iterator elements, XMLStreamWriter writer) throws Exception {
OMElement el;
OMAttribute at;
while (elements.hasNext()) {
el = (OMElement) elements.next();
//write the element's name
writer.writeStartElement(el.getLocalName());
//write the attributes
Iterator attributes = el.getAllAttributes();
while (attributes.hasNext()) {
at = (OMAttribute) attributes.next();
writer.writeAttribute(at.getLocalName(), at.getAttributeValue());
}
//write texts
if (el.getText().length() != 0) {
writer.writeCharacters(el.getText());
}
Iterator children = el.getChildElements();
writeElements(children, writer);
writer.writeEndElement();
}
}
}
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