Apache CXF example source code file (XMLFormatValidator.java)

This example Apache CXF source code file (XMLFormatValidator.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

bindingoperationinfo, collection, collection, iterator, list, object, operationinfo, servicevalidator, string, string, util, xmlbindingmessageformat, xmlbindingmessageformat, xmlformatvalidator, xmlformatvalidator

The Apache CXF XMLFormatValidator.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.binding.xml;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import javax.wsdl.extensions.ExtensibilityElement;
import javax.xml.namespace.QName;

import org.apache.cxf.bindings.xformat.XMLBindingMessageFormat;
import org.apache.cxf.common.WSDLConstants;

import org.apache.cxf.service.model.BindingInfo;
import org.apache.cxf.service.model.BindingOperationInfo;
import org.apache.cxf.service.model.OperationInfo;
import org.apache.cxf.service.model.ServiceInfo;
import org.apache.cxf.tools.validator.ServiceValidator;

public class XMLFormatValidator extends ServiceValidator {

    public XMLFormatValidator() {
    }

    public XMLFormatValidator(ServiceInfo s) {
        this.service = s;
    }

    @Override
    public boolean isValid() {
        return checkXMLBindingFormat();
    }

    private boolean checkXMLBindingFormat() {
        Collection<BindingInfo> bindings = service.getBindings();
        if (bindings != null) {
            for (BindingInfo binding : bindings) {
                if (WSDLConstants.NS_BINDING_XML.equalsIgnoreCase(binding.getBindingId())
                    && !checkXMLFormat(binding)) {
                    return false;
                }
            }
        }
        return true;
    }

    private boolean checkXMLFormat(BindingInfo binding) {
        Collection<BindingOperationInfo> bos = binding.getOperations();
        boolean result = true;
        boolean needRootNode = false;
        for (BindingOperationInfo bo : bos) {
            OperationInfo op = binding.getInterface().getOperation(bo.getName());
            needRootNode = false;
            if (op.getInput().getMessageParts().size() == 0
                || op.getInput().getMessageParts().size() > 1) {
                needRootNode = true;
            }
            if (needRootNode) {
                String path = "Binding(" + binding.getName().getLocalPart()
                    + "):BindingOperation(" + bo.getName() + ")";
                List<ExtensibilityElement> inExtensors =
                    bo.getInput().getExtensors(ExtensibilityElement.class);
                Iterator itIn = null;
                if (inExtensors != null) {
                    itIn = inExtensors.iterator();
                }
                if (!findXMLFormatRootNode(itIn, bo, path + "-input")) {
                    return false;
                }
                // Input check correct, continue to check output binding
                if (op.getOutput() != null) {
                    needRootNode = false;
                    if (op.getOutput().getMessageParts().size() == 0
                        || op.getOutput().getMessageParts().size() > 1) {
                        needRootNode = true;
                    }
                    if (needRootNode) {
                        List<ExtensibilityElement> outExtensors =
                            bo.getOutput().getExtensors(ExtensibilityElement.class);
                        Iterator itOut = null;
                        if (outExtensors != null) {
                            itOut = outExtensors.iterator();
                        }
                        result = result
                            && findXMLFormatRootNode(itOut, bo, path + "-Output");
                        if (!result) {
                            return false;
                        }
                    }
                }
            }
        }
        return true;
    }

    private boolean findXMLFormatRootNode(Iterator it, BindingOperationInfo bo, String errorPath) {
        while (it != null && it.hasNext()) {
            Object ext = it.next();
            if (ext instanceof XMLBindingMessageFormat) {
                XMLBindingMessageFormat xmlFormat = (XMLBindingMessageFormat)ext;
                if (xmlFormat.getRootNode() == null) {
                    QName rootNodeName = bo.getName();
                    addErrorMessage(errorPath
                                    + ": empty value of rootNode attribute, the value should be "
                                    + rootNodeName);
                    return false;                    
                }
            }
        }
        return true;
    }
}