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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.wsdl.util;


import org.apache.axis2.util.Counter;
import org.apache.axis2.util.JavaUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import javax.wsdl.Binding;
import javax.wsdl.BindingFault;
import javax.wsdl.BindingInput;
import javax.wsdl.BindingOperation;
import javax.wsdl.BindingOutput;
import javax.wsdl.Definition;
import javax.wsdl.Fault;
import javax.wsdl.Import;
import javax.wsdl.Input;
import javax.wsdl.Message;
import javax.wsdl.Operation;
import javax.wsdl.Output;
import javax.wsdl.Part;
import javax.wsdl.Port;
import javax.wsdl.PortType;
import javax.wsdl.Service;
import javax.wsdl.Types;
import javax.wsdl.extensions.ExtensibilityElement;
import javax.wsdl.extensions.ExtensionRegistry;
import javax.xml.namespace.QName;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.URL;
import java.util.List;
import java.util.Map;


/**
 * There are cases where a WSDL definition is kept in memory
 * in case it needs to be accessed during runtime.  In situations where 
 * there are lots of WSDL definitions or big WSDLs, the memory footprint can be 
 * huge.
 *
 * This class provides support for processing a WSDL4J definition
 * with a lower memory footprint.  This is useful for certain
 * environments.
 *
 */
public class WSDLWrapperSaveImpl implements WSDLWrapperImpl {

    private static final Log log = LogFactory.getLog(WSDLWrapperSaveImpl.class);
    private static final boolean isDebugEnabled = log.isDebugEnabled();
    private static final String myClassName = "WSDLWrapperSaveImpl";

    // javax.wsdl.Definition implements java.io.Serializable
    static final long serialVersionUID = -2788807375814097409L;

    // the wsdl4j wsdl definition object that is being wrapped
    private Definition wsdlDefinition = null;

    // the location of the base document used in the wsdl4j definition
    private URL wsdlURL = null;
    private String wsdlExplicitURI = null;
    private String wsdlDocumentBaseURI = null;

    // an object that maintains a synchronized counter
    private Counter accessCount = null;

    // serialization-related information ---------------------------
    //
    //   'safeToSerialize' indicates whether the wrapped WSDL definition object is
    //                     safe to serialize.  This is set to false if the underlying
    //                     WSDL4J's WSDL definition had an error when we tried to 
    //                     serialize it.
    // 
    //   'hasBeenSaved'    indicates whether the wrapped WSDL definition object
    //                     has been successfully saved
    // 
    //   'hasBeenUpdatedSinceSaving'  indicates whether the wrapped WSDL definition
    //                     object has been updated since the last saved/serialziation
    // 
    // 
    private boolean safeToSerialize = true;
    private boolean hasBeenSaved = false;
    private boolean hasBeenUpdatedSinceSaving = false;

    private File savedDefinitionFile = null;
    private String savedFilename = null;


    /**
     * Constructor
     * 
     * @param def    The WSDL Definition
     */
    public WSDLWrapperSaveImpl(Definition def) {
        if (log.isDebugEnabled()) {
            log.debug("WSDLWrapperSaveImpl(Definition def) called");
            log.trace(JavaUtils.callStackToString());
        }
        prepare(def, null);
    }


    /**
     * Constructor
     * 
     * @param def    The WSDL Definition
     * @param wURL   The URL for the wsdl
     */
    public WSDLWrapperSaveImpl(Definition def, URL wURL) {
        if (log.isDebugEnabled()) {
            log.debug("WSDLWrapperSaveImpl(Definition def, URL wURL) called");
            log.trace(JavaUtils.callStackToString());
        }
        prepare(def, wURL);
    }



    /**
     * Initialize the wsdl definition wrapper
     * 
     * @param def    The WSDL4J definition
     * @param wURL   The URL where the WSDL is obtained
     */
    private void prepare(Definition def, URL wURL) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".prepare()");
        }
        
        wsdlDefinition = def;
        wsdlURL = wURL;

        accessCount = new Counter();

        releaseResources();
    }


    //-------------------------------------------------------------------------
    // public WSDLDefinitionWrapper methods
    //-------------------------------------------------------------------------

    /*
     * Returns the WSDL4J Definition object that is being wrapped
     */
    public Definition getUnwrappedDefinition() {

        getWrappedDefinitionForUse();

        Definition def;

        if ((wsdlDefinition != null) &&
            (wsdlDefinition instanceof WSDLDefinitionWrapper)) {
            def = ((WSDLDefinitionWrapper) wsdlDefinition).getUnwrappedDefinition();
        } else {
            def = wsdlDefinition;
        }

        return def;
    }



    /**
     * Sets the WSDL4J Definition object that is being wrapped
     *
     * @param d  the WSDL4J Definition object
     */
    public void setDefinitionToWrap(Definition d) {
        wsdlDefinition = d;
    }


    /**
     * Sets the location for the WSDL4J Definition object that is being wrapped
     */
    public void setWSDLLocation(String uriLocation) {
        if (uriLocation != null) {
            try {
                wsdlURL = new URL(uriLocation);
            }
            catch (Exception e) {
                // todo
            }
        }
    }


    /**
     * Gets the location for the WSDL4J Definition object that is being wrapped
     */
    public String getWSDLLocation() {
        if (wsdlURL != null) {
            return wsdlURL.toString();
        }
        else {
            return null;
        }
    }


    /**
     * Closes the use of the wrapper implementation and allows 
     * internal resources to be released.
     */
    public void close() {
        // TODO release temporary files
    }



    //-------------------------------------------------------------------------
    // javax.wsdl.Defintion interface methods
    //-------------------------------------------------------------------------

    public void setDocumentBaseURI(String d) {

        // Set the URI of the base document for the Definition.
        // This identifies the origin of the Definition.
        // Note that this is the URI of the base document, not the imports.

        if (isDebugEnabled) {
            log.debug(myClassName + ".setDocumentBaseURI(" + d + ")");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.setDocumentBaseURI(d);
        }

        doneUsingWrappedDefinition();
    }

    public String getDocumentBaseURI() {

        // Get the URI of the base document for the Definition.
        // This identifies the origin of the Definition.
        // Note that this is the URI of the base document, not the imports.

        if (isDebugEnabled) {
            log.debug(myClassName + ".getDocumentBaseURI()");
        }

        getWrappedDefinitionForUse();

        String results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getDocumentBaseURI();
        }

        doneUsingWrappedDefinition();

        return results;
    }

    public void setQName(QName n) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".setQName(" + n + ")");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.setQName(n);
        }

        doneUsingWrappedDefinition();
    }

    public QName getQName() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getQName()");
        }

        getWrappedDefinitionForUse();

        QName results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getQName();
        }

        doneUsingWrappedDefinition();

        return results;
    }

    public void setTargetNamespace(String t) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".setTargetNamespace(" + t + ")");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.setTargetNamespace(t);
        }

        doneUsingWrappedDefinition();
    }

    public String getTargetNamespace() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getTargetNamespace()");
        }

        getWrappedDefinitionForUse();

        String results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getTargetNamespace();
        }

        doneUsingWrappedDefinition();

        return results;
    }

    public void addNamespace(String prefix, String namespaceURI) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".addNamespace(" + prefix + ", " + namespaceURI + ")");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.addNamespace(prefix, namespaceURI);
        }
        doneUsingWrappedDefinition();
    }

    public String removeNamespace(String prefix) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".removeNamespace(" + prefix + ")");
        }

        getWrappedDefinitionForUse();

        String results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.removeNamespace(prefix);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public String getNamespace(String prefix) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getNamespace(" + prefix + ")");
        }

        getWrappedDefinitionForUse();

        String results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getNamespace(prefix);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public String getPrefix(String namespaceURI) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getPrefix(" + namespaceURI + ")");
        }

        getWrappedDefinitionForUse();

        String results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getPrefix(namespaceURI);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Map getNamespaces() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getNamespaces()");
        }

        getWrappedDefinitionForUse();

        Map results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getNamespaces();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public List getNativeAttributeNames() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getNativeAttributeNames()");
        }

        getWrappedDefinitionForUse();

        List results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getNativeAttributeNames();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public void setTypes(Types types) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".setTypes()");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.setTypes(types);
        } 
        doneUsingWrappedDefinition();
    }


    public Types getTypes() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getTypes()");
        }

        getWrappedDefinitionForUse();

        Types results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getTypes();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public void addImport(Import importDef) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".addImport(" + importDef + ")");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.addImport(importDef);
        }
        doneUsingWrappedDefinition();
    }

    public Import removeImport(Import importDef) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".removeImport(" + importDef + ")");
        }

        getWrappedDefinitionForUse();

        Import results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.removeImport(importDef);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public List getImports(String namespaceURI) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getImports(" + namespaceURI + ")");
        }

        getWrappedDefinitionForUse();

        List results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getImports(namespaceURI);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Map getImports() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getImports()");
        }

        getWrappedDefinitionForUse();

        Map results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getImports();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public void addMessage(Message message) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".addMessage(" + message + ")");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.addMessage(message);
        }
        doneUsingWrappedDefinition();
    }

    public Message getMessage(QName name) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getMessage(" + name + ")");
        }

        getWrappedDefinitionForUse();

        Message results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getMessage(name);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Message removeMessage(QName name) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".removeMessage(" + name + ")");
        }

        getWrappedDefinitionForUse();

        Message results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.removeMessage(name);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Map getMessages() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getMessages()");
        }

        getWrappedDefinitionForUse();

        Map results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getMessages();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public void addBinding(Binding binding) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".addBinding(" + binding + ")");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.addBinding(binding);
        }
        doneUsingWrappedDefinition();
    }

    public Binding getBinding(QName name) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getBinding(" + name + ")");
        }

        getWrappedDefinitionForUse();

        Binding results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getBinding(name);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Binding removeBinding(QName name) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".removeBinding(" + name + ")");
        }

        getWrappedDefinitionForUse();

        Binding results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.removeBinding(name);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Map getBindings() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getBindings()");
        }

        getWrappedDefinitionForUse();

        Map results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getBindings();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Map getAllBindings() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getAllBindings()");
        }

        getWrappedDefinitionForUse();

        Map results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getAllBindings();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public void addPortType(PortType portType) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".addPortType(" + portType + ")");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.addPortType(portType);
        }
        doneUsingWrappedDefinition();
    }

    public PortType getPortType(QName name) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getPortType(" + name + ")");
        }

        getWrappedDefinitionForUse();

        PortType results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getPortType(name);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public PortType removePortType(QName name) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".removePortType(" + name + ")");
        }

        getWrappedDefinitionForUse();

        PortType results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.removePortType(name);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Map getPortTypes() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getPortTypes()");
        }

        getWrappedDefinitionForUse();

        Map results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getPortTypes();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Map getAllPortTypes() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getAllPortTypes()");
        }

        getWrappedDefinitionForUse();

        Map results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getAllPortTypes();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public void addService(Service service) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".addService(" + service + ")");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.addService(service);
        }
        doneUsingWrappedDefinition();
    }

    public Service getService(QName name) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getService(" + name + ")");
        }

        getWrappedDefinitionForUse();

        Service results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getService(name);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Service removeService(QName name) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".removeService(" + name + ")");
        }

        getWrappedDefinitionForUse();

        Service results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.removeService(name);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Map getServices() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getServices()");
        }

        getWrappedDefinitionForUse();

        Map results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getServices();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Map getAllServices() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getAllServices()");
        }

        getWrappedDefinitionForUse();

        Map results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getAllServices();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public void setDocumentationElement(org.w3c.dom.Element docEl) {

        if (isDebugEnabled) {
            log.debug(myClassName + ".setDocumentationElement()");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.setDocumentationElement(docEl);
        }
        doneUsingWrappedDefinition();
    }

    public org.w3c.dom.Element getDocumentationElement() {

        if (isDebugEnabled) {
            log.debug(myClassName + ".getDocumentationElement()");
        }

        getWrappedDefinitionForUse();

        org.w3c.dom.Element results = null;

        if (wsdlDefinition != null) {
            return  wsdlDefinition.getDocumentationElement();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public void addExtensibilityElement(ExtensibilityElement extElement) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".addExtensibilityElement(" + extElement + ")");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.addExtensibilityElement(extElement);
        }
        doneUsingWrappedDefinition();
    }

    public List getExtensibilityElements() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getExtensibilityElements()");
        }

        getWrappedDefinitionForUse();

        List results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getExtensibilityElements();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Binding createBinding() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createBinding()");
        }

        getWrappedDefinitionForUse();

        Binding results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createBinding();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public BindingFault createBindingFault() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createBindingFault()");
        }

        getWrappedDefinitionForUse();

        BindingFault results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createBindingFault();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public BindingInput createBindingInput() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createBindingInput()");
        }

        getWrappedDefinitionForUse();

        BindingInput results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createBindingInput();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public BindingOperation createBindingOperation() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createBindingOperation()");
        }

        getWrappedDefinitionForUse();

        BindingOperation results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createBindingOperation();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public BindingOutput createBindingOutput() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createBindingOutput()");
        }

        getWrappedDefinitionForUse();

        BindingOutput results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createBindingOutput();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Fault createFault() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createFault()");
        }

        getWrappedDefinitionForUse();

        Fault results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createFault();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Import createImport() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createImport()");
        }

        getWrappedDefinitionForUse();

        Import results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createImport();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Input createInput() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createInput()");
        }

        getWrappedDefinitionForUse();

        Input results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createInput();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Message createMessage() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createMessage()");
        }

        getWrappedDefinitionForUse();

        Message results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createMessage();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Operation createOperation() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createOperation()");
        }

        getWrappedDefinitionForUse();

        Operation results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createOperation();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Output createOutput() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createOutput()");
        }

        getWrappedDefinitionForUse();

        Output results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createOutput();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Part createPart() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createPart()");
        }

        getWrappedDefinitionForUse();

        Part results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createPart();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Port createPort() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createPort()");
        }

        getWrappedDefinitionForUse();

        Port results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createPort();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public PortType createPortType() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createPortType()");
        }

        getWrappedDefinitionForUse();

        PortType results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createPortType();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Service createService() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createService()");
        }

        getWrappedDefinitionForUse();

        Service results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createService();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Types createTypes() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".createTypes()");
        }

        getWrappedDefinitionForUse();

        Types results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.createTypes();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public void setExtensionRegistry(ExtensionRegistry extReg) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".setExtensionRegistry(" + extReg + ")");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.setExtensionRegistry(extReg);
        }
        doneUsingWrappedDefinition();
    }

    public ExtensionRegistry getExtensionRegistry() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getExtensionRegistry()");
        }

        getWrappedDefinitionForUse();

        ExtensionRegistry results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getExtensionRegistry();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public String toString() {
        getWrappedDefinitionForUse();
        String results = "";
        if (wsdlDefinition != null) {
            results = wsdlDefinition.toString();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    //-------------------------------------------------------------------------
    // other AbstractWSDLElement methods
    //-------------------------------------------------------------------------

    public ExtensibilityElement removeExtensibilityElement(ExtensibilityElement extElement) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".removeExtensibilityElement(" + extElement + ")");
        }

        getWrappedDefinitionForUse();

        ExtensibilityElement results = null;

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            results = wsdlDefinition.removeExtensibilityElement(extElement);
        }
        doneUsingWrappedDefinition();
        return results;

    }

    public java.lang.Object getExtensionAttribute(QName name) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getExtensionAttribute(" + name + ")");
        }

        getWrappedDefinitionForUse();

        java.lang.Object results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getExtensionAttribute(name);
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public Map getExtensionAttributes() {
        if (isDebugEnabled) {
            log.debug(myClassName + ".getExtensionAttributes()");
        }

        getWrappedDefinitionForUse();

        Map results = null;

        if (wsdlDefinition != null) {
            results = wsdlDefinition.getExtensionAttributes();
        }
        doneUsingWrappedDefinition();
        return results;
    }

    public void setExtensionAttribute(QName name, java.lang.Object value) {
        if (isDebugEnabled) {
            log.debug(myClassName + ".setExtensionAttribute(" + name + ",  " + value + ")");
        }

        getWrappedDefinitionForUse();

        if (wsdlDefinition != null) {
            if (hasBeenSaved) {
                hasBeenUpdatedSinceSaving = true;
            }
            wsdlDefinition.setExtensionAttribute(name, value);
        }
        doneUsingWrappedDefinition();
    }

    //-------------------------------------------------------------------------
    // private utility methods
    //-------------------------------------------------------------------------


    /**
     * This is an internal utility to ensure that the
     * WSDL definition being wrapped is available for 
     * use.  
     * 

* For example, if the WSDL4J WSDL definition object * had been saved, this will reload it. */ private void getWrappedDefinitionForUse() { if (wsdlDefinition == null) { loadResources(); } if (wsdlDefinition != null) { accessCount.incrementAndGet(); } } /** * This is an internal utility to indicate that the * use of WSDL definition has completed. */ private void doneUsingWrappedDefinition() { long assessors = accessCount.decrementAndGet(); if (assessors == 0) { releaseResources(); } } /* * Reduces memory footprint of the in-memory caching of the WSDL definition * based on the configuration settings * */ public void releaseResources() { boolean saved = save(); if (saved) { // release the in-memory copy of the WSDL4J wsdlDefinition = null; } } /* * Loads the the WSDL definition back into memory */ public void loadResources() { if (wsdlDefinition == null) { wsdlDefinition = restore(); } } /** * Saves the current WSDL definition object that this wrapper contains. * This method has a number of checks to determine how to proceed with * the saving of the WSDL definition object, so the caller should not * need to make checks on whether to save or not. *

* The caller is responsible for handling the wrapped WSDL * definition object, for example, deciding when to release * it or reload it. * * @return True - if the save succeeded * False - if the save failed */ private boolean save() { // if the wsdl definiton failed to serialize from a previous attempt // to save it, then don't try to save it if (safeToSerialize == false) { // exit quickly return false; } // at this point, we think it is safe to proceed with saving the // wsdl definition // make sure there is a file to use for saving the wsdl definition if (savedDefinitionFile == null) { try { savedDefinitionFile = File.createTempFile("wsdlDef_", null); savedFilename = savedDefinitionFile.getName(); log.debug(myClassName + ".save(): temp file = [" + savedFilename + "]"); } catch (Exception ex) { log.debug(myClassName + ".save(): error creating temp file = [" + ex.getMessage() + "]"); savedDefinitionFile = null; savedFilename = null; // can't save the wsdl definition at this time // might be able to do so later hasBeenSaved = false; return false; } } if (savedDefinitionFile != null) { // the File object exists, check to see if the wsdl definition has // been previously saved if (hasBeenSaved && !hasBeenUpdatedSinceSaving) { // no need to save because we saved it already // and there were no updates to the wsdl definition object // since the previous save return true; } // --------------------------------------------------------- // save to the file // --------------------------------------------------------- FileOutputStream outStream = null; ObjectOutputStream outObjStream = null; try { // setup an output stream to a physical file outStream = new FileOutputStream(savedDefinitionFile); // attach a stream capable of writing objects to the // stream connected to the file outObjStream = new ObjectOutputStream(outStream); // try to save the wsdl object log.debug(myClassName + ".save(): saving the wsdl definition....."); outObjStream.writeObject(wsdlDefinition); // close out the streams outObjStream.flush(); outObjStream.close(); outStream.flush(); outStream.close(); hasBeenSaved = true; hasBeenUpdatedSinceSaving = false; log.debug(myClassName + ".save(): ....saved the wsdl definition....."); long filesize = savedDefinitionFile.length(); log.debug(myClassName + ".save(): file size after save [" + filesize + "] temp file = [" + savedFilename + "]"); log.debug(myClassName + ".save(): end - - - - - - - - - - - - - - - -"); return true; } catch (Exception ex2) { // disable future tries at saving this WSDL definition object safeToSerialize = false; // indicate that the file cannot be used to restore from hasBeenSaved = false; log.debug(myClassName + ".save(): error with saving the wsdl definition = [" + ex2.getClass().getName() + " : " + ex2.getMessage() + "]", ex2); if (savedDefinitionFile != null) { try { savedDefinitionFile.delete(); savedDefinitionFile = null; savedFilename = null; } catch (Exception e) { // just absorb it } } if (outObjStream != null) { try { outObjStream.close(); } catch (Exception e) { // just absorb it } } if (outStream != null) { try { outStream.close(); } catch (Exception e) { // just absorb it } } log.debug(myClassName + ".save(): error exit - - - - - - - - - - - - - - - -"); return false; } } return false; } /** * Restores the WSDL definition from a previously saved copy. *

* The caller is responsible for handling the wrapped WSDL * definition object, for example, deciding when to release * it or reload it. * * @return The restored WSDL definition object, or NULL */ private Definition restore() { if (!hasBeenSaved) { // the wsdl defintion has not been saved, or the previous saved version // should not be used for some reason return null; } if (savedDefinitionFile == null) { // no file to restore from return null; } // --------------------------------------------------------- // restore from the temporary file // --------------------------------------------------------- Definition restoredDefinition = null; FileInputStream inStream = null; ObjectInputStream inObjStream = null; try { // setup an input stream to the file inStream = new FileInputStream(savedDefinitionFile); // attach a stream capable of reading objects from the // stream connected to the file inObjStream = new ObjectInputStream(inStream); // try to restore the wrapped wsdl definition log.debug(myClassName + ".restore(): restoring the WSDL definition ....."); restoredDefinition = (Definition) inObjStream.readObject(); inObjStream.close(); inStream.close(); log.debug(myClassName + ".restore(): ....restored the WSDL definition ....."); } catch (Exception ex2) { log.debug(myClassName + ".restore(): error with restoring the WSDL definition = [" + ex2.getClass().getName() + " : " + ex2.getMessage() + "]", ex2); if (inObjStream != null) { try { inObjStream.close(); } catch (Exception e) { // just absorb it } } if (inStream != null) { try { inStream.close(); } catch (Exception e) { // just absorb it } } } log.debug(myClassName + ".restore(): end - - - - - - - - - - - - - - - -"); return restoredDefinition; } }





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