Apache CXF example source code file (XSDToWSDLProcessor.java)

This example Apache CXF source code file (XSDToWSDLProcessor.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Apache CXF tags/keywords

dom, exception, filewriterutil, io, ioexception, log, log, logging, message, message, net, network, string, string, toolexception, toolexception, writer, wsdl_file_name_ext, wsdlexception

The Apache CXF XSDToWSDLProcessor.java source code

/**
 * 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.cxf.tools.misc.processor;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.Writer;
import java.net.URL;
import java.util.logging.Logger;

import javax.wsdl.Definition;
import javax.wsdl.Types;
import javax.wsdl.WSDLException;
import javax.wsdl.extensions.ExtensibilityElement;
import javax.wsdl.extensions.ExtensionRegistry;
import javax.wsdl.extensions.schema.Schema;
import javax.wsdl.factory.WSDLFactory;
import javax.wsdl.xml.WSDLWriter;
import javax.xml.namespace.QName;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

import org.apache.cxf.common.WSDLConstants;
import org.apache.cxf.common.i18n.Message;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.tools.common.Processor;
import org.apache.cxf.tools.common.ToolConstants;
import org.apache.cxf.tools.common.ToolContext;
import org.apache.cxf.tools.common.ToolException;
import org.apache.cxf.tools.common.dom.ExtendedDocumentBuilder;
import org.apache.cxf.tools.util.FileWriterUtil;
import org.apache.cxf.tools.wsdlto.frontend.jaxws.customization.JAXWSBinding;
import org.apache.cxf.tools.wsdlto.frontend.jaxws.customization.JAXWSBindingDeserializer;
import org.apache.cxf.tools.wsdlto.frontend.jaxws.customization.JAXWSBindingSerializer;

public class XSDToWSDLProcessor implements Processor {
    private static final Logger LOG = LogUtils.getL7dLogger(XSDToWSDLProcessor.class);
    private static final String XSD_FILE_NAME_EXT = ".xsd";
    private static final String WSDL_FILE_NAME_EXT = ".wsdl";

    private Definition wsdlDefinition;
    private ExtensionRegistry registry;
    private WSDLFactory wsdlFactory;

    private String xsdUrl;
    private final ExtendedDocumentBuilder xsdBuilder = new ExtendedDocumentBuilder();
    private Document xsdDoc;
    private ToolContext env;

    public void process() throws ToolException {
        envParamSetting();
        initXSD();
        initWSDL();
        addWSDLTypes();
    }

    public void setEnvironment(ToolContext newEnv) {
        this.env = newEnv;
    }

    private void envParamSetting() {
        xsdUrl = (String)env.get(ToolConstants.CFG_XSDURL);

        if (!env.optionSet(ToolConstants.CFG_NAME)) {
            env.put(ToolConstants.CFG_NAME, xsdUrl.substring(0, xsdUrl.length() - 4));
        }
    }

    private void initWSDL() throws ToolException {
        try {
            wsdlFactory = WSDLFactory.newInstance();
            wsdlDefinition = wsdlFactory.newDefinition();
        } catch (WSDLException we) {
            Message msg = new Message("FAIL_TO_CREATE_WSDL_DEFINITION", LOG);
            throw new ToolException(msg, we);
        }
    }

    private void initXSD() throws ToolException {
        InputStream in;
        try {
            in = new URL(xsdUrl).openStream();
        } catch (Exception m) {
            try {
                in = new FileInputStream(xsdUrl);
            } catch (IOException ioe) {
                Message msg = new Message("FAIL_TO_OPEN_XSD_FILE", LOG, xsdUrl);
                throw new ToolException(msg, ioe);
            }
        }

        if (in == null) {
            throw new NullPointerException("Cannot create a ToolSpec object from a null stream");
        }
        try {
            xsdBuilder.setValidating(false);
            this.xsdDoc = xsdBuilder.parse(in);
        } catch (Exception ex) {
            Message msg = new Message("FAIL_TO_PARSE_TOOLSPEC", LOG);
            throw new ToolException(msg, ex);
        }
    }

    private void addWSDLTypes() throws ToolException {

        Element sourceElement = this.xsdDoc.getDocumentElement();
        Element targetElement = (Element)sourceElement.cloneNode(true);

        this.wsdlDefinition.setTargetNamespace((String)env.get(ToolConstants.CFG_NAMESPACE));
        this.wsdlDefinition
            .setQName(new QName(WSDLConstants.NS_WSDL11, (String)env.get(ToolConstants.CFG_NAME)));

        Types types = this.wsdlDefinition.createTypes();
        ExtensibilityElement extElement;
        try {
            registry = wsdlFactory.newPopulatedExtensionRegistry();
            registerJAXWSBinding(Definition.class);
            registerJAXWSBinding(Types.class);
            registerJAXWSBinding(Schema.class);
            extElement = registry.createExtension(Types.class, WSDLConstants.QNAME_SCHEMA);
        } catch (WSDLException wse) {
            Message msg = new Message("FAIL_TO_CREATE_SCHEMA_EXTENSION", LOG);
            throw new ToolException(msg, wse);
        }
        ((Schema)extElement).setElement(targetElement);
        types.addExtensibilityElement(extElement);
        this.wsdlDefinition.setTypes(types);

        WSDLWriter wsdlWriter = wsdlFactory.newWSDLWriter();
        Writer outputWriter = getOutputWriter();

        try {
            wsdlWriter.writeWSDL(wsdlDefinition, outputWriter);
        } catch (WSDLException wse) {
            Message msg = new Message("FAIL_TO_WRITE_WSDL", LOG);
            throw new ToolException(msg, wse);
        }
        try {
            outputWriter.close();
        } catch (IOException ioe) {
            Message msg = new Message("FAIL_TO_CLOSE_WSDL_FILE", LOG);
            throw new ToolException(msg, ioe);
        }
    }

    private void registerJAXWSBinding(Class clz) {
        registry.registerSerializer(clz, ToolConstants.JAXWS_BINDINGS, new JAXWSBindingSerializer());

        registry.registerDeserializer(clz, ToolConstants.JAXWS_BINDINGS, new JAXWSBindingDeserializer());
        registry.mapExtensionTypes(clz, ToolConstants.JAXWS_BINDINGS, JAXWSBinding.class);
    }

    private Writer getOutputWriter() throws ToolException {
        Writer writer = null;
        String newName = null;
        String outputDir;

        if (env.get(ToolConstants.CFG_OUTPUTFILE) != null) {
            newName = (String)env.get(ToolConstants.CFG_OUTPUTFILE);
        } else {
            String oldName = (String)env.get(ToolConstants.CFG_XSDURL);
            int position = oldName.lastIndexOf("/");
            if (position < 0) {
                position = oldName.lastIndexOf("\\");
            }
            if (position >= 0) {
                oldName = oldName.substring(position + 1, oldName.length());
            }
            if (oldName.toLowerCase().indexOf(XSD_FILE_NAME_EXT) >= 0) {
                newName = oldName.substring(0, oldName.length() - 4) + WSDL_FILE_NAME_EXT;
            } else {
                newName = oldName + WSDL_FILE_NAME_EXT;
            }
        }
        if (env.get(ToolConstants.CFG_OUTPUTDIR) != null) {
            outputDir = (String)env.get(ToolConstants.CFG_OUTPUTDIR);
            if (!("/".equals(outputDir.substring(outputDir.length() - 1))
                  || "\\".equals(outputDir.substring(outputDir.length() - 1)))) {
                outputDir = outputDir + "/";
            }
        } else {
            outputDir = "./";
        }
        FileWriterUtil fw = new FileWriterUtil(outputDir);
        try {
            writer = fw.getWriter("", newName);
        } catch (IOException ioe) {
            Message msg = new Message("FAIL_TO_WRITE_FILE", LOG, env.get(ToolConstants.CFG_OUTPUTDIR)
                                    + System.getProperty("file.seperator") + newName);
            throw new ToolException(msg, ioe);
        }
        return writer;
    }

}