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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.binding.ws.axis2.transport.base;
import java.io.IOException;
import java.io.InputStream;
import java.util.Hashtable;
import java.util.List;
import java.util.StringTokenizer;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMOutputFormat;
import org.apache.axiom.om.impl.builder.StAXBuilder;
import org.apache.axiom.om.util.StAXUtils;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder;
import org.apache.axis2.AxisFault;
import org.apache.axis2.Constants;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.description.AxisService;
import org.apache.axis2.engine.AxisConfiguration;
import org.apache.axis2.transport.MessageFormatter;
import org.apache.axis2.transport.TransportUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.tuscany.sca.binding.ws.axis2.format.BinaryFormatter;
import org.apache.tuscany.sca.binding.ws.axis2.format.PlainTextFormatter;
public class BaseUtils {
private static final Log log = LogFactory.getLog(BaseUtils.class);
/**
* Return a QName from the String passed in of the form {ns}element
* @param obj a QName or a String containing a QName in {ns}element form
* @return a corresponding QName object
*/
public static QName getQNameFromString(Object obj) {
String value;
if (obj instanceof QName) {
return (QName) obj;
} else {
value = obj.toString();
}
int open = value.indexOf('{');
int close = value.indexOf('}');
if (close > open && open > -1 && value.length() > close) {
return new QName(value.substring(open+1, close-open), value.substring(close+1));
} else {
return new QName(value);
}
}
/**
* Marks the given service as faulty with the given comment
*
* @param serviceName service name
* @param msg comment for being faulty
* @param axisCfg configuration context
*/
public static void markServiceAsFaulty(String serviceName, String msg,
AxisConfiguration axisCfg) {
if (serviceName != null) {
try {
AxisService service = axisCfg.getService(serviceName);
axisCfg.getFaultyServices().put(service.getName(), msg);
} catch (AxisFault axisFault) {
log.warn("Error marking service : " + serviceName + " as faulty", axisFault);
}
}
}
/**
* Create a SOAP envelope using SOAP 1.1 or 1.2 depending on the namespace
* @param in InputStream for the payload
* @param namespace the SOAP namespace
* @return the SOAP envelope for the correct version
* @throws javax.xml.stream.XMLStreamException on error
*/
public static SOAPEnvelope getEnvelope(InputStream in, String namespace) throws XMLStreamException {
try {
in.reset();
} catch (IOException ignore) {}
XMLStreamReader xmlreader =
StAXUtils.createXMLStreamReader(in, MessageContext.DEFAULT_CHAR_SET_ENCODING);
StAXBuilder builder = new StAXSOAPModelBuilder(xmlreader, namespace);
return (SOAPEnvelope) builder.getDocumentElement();
}
/**
* Get the OMOutput format for the given message
* @param msgContext the axis message context
* @return the OMOutput format to be used
*/
public static OMOutputFormat getOMOutputFormat(MessageContext msgContext) {
OMOutputFormat format = new OMOutputFormat();
msgContext.setDoingMTOM(TransportUtils.doWriteMTOM(msgContext));
msgContext.setDoingSwA(TransportUtils.doWriteSwA(msgContext));
msgContext.setDoingREST(TransportUtils.isDoingREST(msgContext));
format.setSOAP11(msgContext.isSOAP11());
format.setDoOptimize(msgContext.isDoingMTOM());
format.setDoingSWA(msgContext.isDoingSwA());
format.setCharSetEncoding(TransportUtils.getCharSetEncoding(msgContext));
Object mimeBoundaryProperty = msgContext.getProperty(Constants.Configuration.MIME_BOUNDARY);
if (mimeBoundaryProperty != null) {
format.setMimeBoundary((String) mimeBoundaryProperty);
}
return format;
}
/**
* Get the MessageFormatter for the given message.
* @param msgContext the axis message context
* @return the MessageFormatter to be used
*/
public static MessageFormatter getMessageFormatter(MessageContext msgContext) {
// check the first element of the SOAP body, do we have content wrapped using the
// default wrapper elements for binary (BaseConstants.DEFAULT_BINARY_WRAPPER) or
// text (BaseConstants.DEFAULT_TEXT_WRAPPER) ? If so, select the appropriate
// message formatter directly ...
OMElement firstChild = msgContext.getEnvelope().getBody().getFirstElement();
if (firstChild != null) {
if (BaseConstants.DEFAULT_BINARY_WRAPPER.equals(firstChild.getQName())) {
return new BinaryFormatter();
} else if (BaseConstants.DEFAULT_TEXT_WRAPPER.equals(firstChild.getQName())) {
return new PlainTextFormatter();
}
}
// ... otherwise, let Axis choose the right message formatter:
try {
return TransportUtils.getMessageFormatter(msgContext);
} catch (AxisFault axisFault) {
throw new BaseTransportException("Unable to get the message formatter to use");
}
}
protected static void handleException(String s) {
log.error(s);
throw new BaseTransportException(s);
}
protected static void handleException(String s, Exception e) {
log.error(s, e);
throw new BaseTransportException(s, e);
}
/**
* Utility method to check if a string is null or empty
* @param str the string to check
* @return true if the string is null or empty
*/
public static boolean isBlank(String str) {
if (str == null || str.length() == 0) {
return true;
}
for (int i = 0; i < str.length(); i++) {
if (!Character.isWhitespace(str.charAt(i))) {
return false;
}
}
return true;
}
public static boolean isUsingTransport(AxisService service, String transportName) {
boolean process = service.isEnableAllTransports();
if (process) {
return true;
} else {
List transports = service.getExposedTransports();
for (Object transport : transports) {
if (transportName.equals(transport)) {
return true;
}
}
}
return false;
}
/**
* Extract the properties from an endpoint reference.
*
* @param url an endpoint reference
* @return the extracted properties
*/
public static Hashtable<String,String> getEPRProperties(String url) {
Hashtable<String,String> h = new Hashtable<String,String>();
int propPos = url.indexOf("?");
if (propPos != -1) {
StringTokenizer st = new StringTokenizer(url.substring(propPos + 1), "&");
while (st.hasMoreTokens()) {
String token = st.nextToken();
int sep = token.indexOf("=");
if (sep != -1) {
h.put(token.substring(0, sep), token.substring(sep + 1));
} else {
// ignore, what else can we do?
}
}
}
return h;
}
}
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