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/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package com.sun.xml.rpc.wsdl.document;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import javax.xml.namespace.QName;

import com.sun.xml.rpc.wsdl.framework.Entity;
import com.sun.xml.rpc.wsdl.framework.EntityAction;
import com.sun.xml.rpc.wsdl.framework.ExtensibilityHelper;
import com.sun.xml.rpc.wsdl.framework.Extensible;
import com.sun.xml.rpc.wsdl.framework.Extension;

/**
 * Entity corresponding to the "operation" child element of a WSDL "binding" element.
 *
 * @author JAX-RPC Development Team
 */
public class BindingOperation extends Entity implements Extensible {

    public BindingOperation() {
        _faults = new ArrayList();
        _helper = new ExtensibilityHelper();
    }

    public String getName() {
        return _name;
    }

    public void setName(String name) {
        _name = name;
    }

    public String getUniqueKey() {
        if (_uniqueKey == null) {
            StringBuffer sb = new StringBuffer();
            sb.append(_name);
            sb.append(' ');
            if (_input != null) {
                sb.append(_input.getName());
            } else {
                sb.append(_name);
                if (_style == OperationStyle.REQUEST_RESPONSE) {
                    sb.append("Request");
                } else if (_style == OperationStyle.SOLICIT_RESPONSE) {
                    sb.append("Response");
                }
            }
            sb.append(' ');
            if (_output != null) {
                sb.append(_output.getName());
            } else {
                sb.append(_name);
                if (_style == OperationStyle.SOLICIT_RESPONSE) {
                    sb.append("Solicit");
                } else if (_style == OperationStyle.REQUEST_RESPONSE) {
                    sb.append("Response");
                }
            }
            _uniqueKey = sb.toString();
        }

        return _uniqueKey;
    }

    public OperationStyle getStyle() {
        return _style;
    }

    public void setStyle(OperationStyle s) {
        _style = s;
    }

    public BindingInput getInput() {
        return _input;
    }

    public void setInput(BindingInput i) {
        _input = i;
    }

    public BindingOutput getOutput() {
        return _output;
    }

    public void setOutput(BindingOutput o) {
        _output = o;
    }

    public void addFault(BindingFault f) {
        _faults.add(f);
    }

    public Iterator faults() {
        return _faults.iterator();
    }

    public QName getElementName() {
        return WSDLConstants.QNAME_OPERATION;
    }

    public Documentation getDocumentation() {
        return _documentation;
    }

    public void setDocumentation(Documentation d) {
        _documentation = d;
    }

    public void addExtension(Extension e) {
        _helper.addExtension(e);
    }

    public Iterator extensions() {
        return _helper.extensions();
    }

    public void withAllSubEntitiesDo(EntityAction action) {
        if (_input != null) {
            action.perform(_input);
        }
        if (_output != null) {
            action.perform(_output);
        }
        for (Iterator iter = _faults.iterator(); iter.hasNext();) {
            action.perform((Entity) iter.next());
        }
        _helper.withAllSubEntitiesDo(action);
    }

    public void accept(WSDLDocumentVisitor visitor) throws Exception {
        visitor.preVisit(this);
        //bug fix: 4947340, extensions should be the first element        
        _helper.accept(visitor);
        if (_input != null) {
            _input.accept(visitor);
        }
        if (_output != null) {
            _output.accept(visitor);
        }
        for (Iterator iter = _faults.iterator(); iter.hasNext();) {
            ((BindingFault) iter.next()).accept(visitor);
        }
        visitor.postVisit(this);
    }

    public void validateThis() {
        if (_name == null) {
            failValidation("validation.missingRequiredAttribute", "name");
        }
        if (_style == null) {
            failValidation("validation.missingRequiredProperty", "style");
        }

        // verify operation style
        if (_style == OperationStyle.ONE_WAY) {
            if (_input == null) {
                failValidation("validation.missingRequiredSubEntity", "input");
            }
            if (_output != null) {
                failValidation("validation.invalidSubEntity", "output");
            }
            if (_faults != null && _faults.size() != 0) {
                failValidation("validation.invalidSubEntity", "fault");
            }
        }
    }

    private ExtensibilityHelper _helper;
    private Documentation _documentation;
    private String _name;
    private BindingInput _input;
    private BindingOutput _output;
    private List _faults;
    private OperationStyle _style;
    private String _uniqueKey;
}