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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.axis2.addressing.wsdl;

import org.apache.axis2.addressing.AddressingConstants;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import javax.wsdl.Definition;
import javax.wsdl.Fault;
import javax.wsdl.Input;
import javax.wsdl.Operation;
import javax.wsdl.Output;
import javax.wsdl.PortType;
import javax.wsdl.extensions.AttributeExtensible;
import javax.xml.namespace.QName;
import java.util.List;

/**
 * The WSDL11ActionHelper provides 3 static methods to determine the correct wsa:Action value from
 * a wsdl4j Input/Output/Fault object. It first attempts to access the wsaw:Action attribute and if
 * that is not found uses the WSDL11DefaultActionPatternHelper to generate and Action based on the
 * Default Action Pattern for WSDL1.1 at http://www.w3.org/TR/2006/WD-ws-addr-wsdl-20060216/#defactionwsdl11
 */
public class WSDL11ActionHelper {

    private static final Log log = LogFactory.getLog(WSDL11ActionHelper.class);
    private static final QName submissionWSAWNS =
            new QName(AddressingConstants.Submission.WSA_NAMESPACE, AddressingConstants.WSA_ACTION);
    private static final QName finalWSANS =
            new QName(AddressingConstants.Final.WSA_NAMESPACE, AddressingConstants.WSA_ACTION);
    private static final QName finalWSAWNS =
            new QName(AddressingConstants.Final.WSAW_NAMESPACE, AddressingConstants.WSA_ACTION);
    private static final QName finalWSAMNS =
        new QName(AddressingConstants.Final.WSAM_NAMESPACE, AddressingConstants.WSA_ACTION);

    /**
     * getActionFromInputElement
     *
     * @param def            the wsdl:definitions which contains the wsdl:portType
     * @param wsdl4jPortType the wsdl:portType which contains the wsdl:operation
     * @param op             the wsdl:operation which contains the input element
     * @param input          the input element to be examined to generate the wsa:Action
     * @return either the wsaw:Action from the input element or an action generated using the DefaultActionPattern
     */
    public static String getActionFromInputElement(Definition def, PortType wsdl4jPortType,
                                                   Operation op, Input input) {
        String result = getWSAWActionExtensionAttribute(input);
        if (result == null || result.equals("")) {
            result = WSDL11DefaultActionPatternHelper
                    .generateActionFromInputElement(def, wsdl4jPortType, op, input);
        }
        log.trace(result);
        return result;
    }

    /**
     * getActionFromOutputElement
     *
     * @param def            the wsdl:definitions which contains the wsdl:portType
     * @param wsdl4jPortType the wsdl:portType which contains the wsdl:operation
     * @param op             the wsdl:operation which contains the output element
     * @param output         the input element to be examined to generate the wsa:Action
     * @return either the wsaw:Action from the output element or an action generated using the DefaultActionPattern
     */
    public static String getActionFromOutputElement(Definition def, PortType wsdl4jPortType,
                                                    Operation op, Output output) {
        String result = getWSAWActionExtensionAttribute(output);
        if (result == null || result.equals("")) {
            result = WSDL11DefaultActionPatternHelper
                    .generateActionFromOutputElement(def, wsdl4jPortType, op, output);
        }
        log.trace(result);
        return result;
    }

    /**
     * getActionFromFaultElement
     *
     * @param def            the wsdl:definitions which contains the wsdl:portType
     * @param wsdl4jPortType the wsdl:portType which contains the wsdl:operation
     * @param op             the wsdl:operation which contains the fault element
     * @param fault          the fault element to be examined to generate the wsa:Action
     * @return either the wsaw:Action from the fault element or an action generated using the DefaultActionPattern
     */
    public static String getActionFromFaultElement(Definition def, PortType wsdl4jPortType,
                                                   Operation op, Fault fault) {
        String result = getWSAWActionExtensionAttribute(fault);
        if (result == null || result.equals("")) {
            result = WSDL11DefaultActionPatternHelper
                    .generateActionFromFaultElement(def, wsdl4jPortType, op, fault);
        }
        log.trace(result);
        return result;
    }

    private static String getWSAWActionExtensionAttribute(AttributeExtensible ae) {
        // Search first for a wsaw:Action using the submission namespace
        Object attribute = ae.getExtensionAttribute(submissionWSAWNS);
        // Then if that did not exist one using the w3c WSAM namespace
        if (attribute == null) {
            attribute = ae.getExtensionAttribute(finalWSAMNS);
        }
        // Then if that did not exist one using the w3c WSAW namespace
        // (for backwards compat reasons)
        if (attribute == null) {
            attribute = ae.getExtensionAttribute(finalWSAWNS);
        }
        // Then finally if that did not exist, try the 2005/08 NS
        // (Included here because it's needed for Apache Muse)
        if (attribute == null) {
            attribute = ae.getExtensionAttribute(finalWSANS);
        }

        // wsdl4j may return a String, QName or a List of either
        // If it is a list, extract the first element
        if (attribute instanceof List) {
            List l = (List) attribute;
            if (l.size() > 0) {
                attribute = l.get(0);
            } else {
                attribute = null;
            }
        }

        // attribute must now be a QName or String or null
        // If it is a QName, take the LocalPart as a String
        if (attribute instanceof QName) {
            QName qn = (QName) attribute;
            attribute = qn.getLocalPart();
        }

        if ((attribute instanceof String)) {
            String result = (String) attribute;
            log.trace(result);
            return result;
        } else {
            if (log.isTraceEnabled()) {
                log.trace("No wsaw:Action attribute found");
            }
            return null;
        }
    }

    public static String getInputActionFromStringInformation(String messageExchangePattern,
                                                             String targetNamespace,
                                                             String portTypeName,
                                                             String operationName,
                                                             String inputName) {
        return WSDL11DefaultActionPatternHelper.getInputActionFromStringInformation(
                messageExchangePattern, targetNamespace, portTypeName, operationName, inputName);
    }

    public static String getOutputActionFromStringInformation(String messageExchangePattern,
                                                              String targetNamespace,
                                                              String portTypeName,
                                                              String operationName,
                                                              String outputName) {
        return WSDL11DefaultActionPatternHelper.getOutputActionFromStringInformation(
                messageExchangePattern, targetNamespace, portTypeName, operationName, outputName);
    }

    public static String getFaultActionFromStringInformation(String targetNamespace,
                                                             String portTypeName,
                                                             String operationName,
                                                             String faultName) {
        return WSDL11DefaultActionPatternHelper.getFaultActionFromStringInformation(targetNamespace,
                                                                                    portTypeName,
                                                                                    operationName,
                                                                                    faultName);
    }

}
    

    

    

            

    

            



    
    






    
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