doclitbareschemagenerator.java

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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.description.java2wsdl;

import org.apache.axis2.AxisFault;
import org.apache.axis2.deployment.util.Utils;
import org.apache.axis2.description.AxisMessage;
import org.apache.axis2.description.AxisOperation;
import org.apache.axis2.description.AxisService;
import org.apache.axis2.description.WSDL2Constants;
import org.apache.axis2.wsdl.WSDLConstants;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.ws.commons.schema.*;
import org.apache.ws.commons.schema.utils.NamespaceMap;
import org.codehaus.jam.*;

import javax.xml.namespace.QName;
import java.util.*;

public class DocLitBareSchemaGenerator extends DefaultSchemaGenerator {

    private static final Log log = LogFactory.getLog(DocLitBareSchemaGenerator.class);
    private HashMap processedParameters = new HashMap();

    public DocLitBareSchemaGenerator(ClassLoader loader,
                                     String className,
                                     String schematargetNamespace,
                                     String schematargetNamespacePrefix,
                                     AxisService service) throws Exception {
        super(loader, className, schematargetNamespace,
                schematargetNamespacePrefix, service);
    }

    protected JMethod[] processMethods(JMethod[] declaredMethods) throws Exception {
        ArrayList list = new ArrayList();
        //short the elements in the array
        Arrays.sort(declaredMethods);

        // since we do not support overload
        HashMap uniqueMethods = new HashMap();
        XmlSchemaComplexType methodSchemaType;
        XmlSchemaSequence sequence;

        for (int i = 0; i < declaredMethods.length; i++) {
            JMethod jMethod = declaredMethods[i];
            JAnnotation methodAnnon = jMethod.getAnnotation(AnnotationConstants.WEB_METHOD);
            if (methodAnnon != null) {
                if (methodAnnon.getValue(AnnotationConstants.EXCLUDE).asBoolean()) {
                    continue;
                }
            }
            String methodName = getSimpleName(jMethod);
            // no need to think abt this method , since that is system
            // config method
            if (excludeMethods.contains(getSimpleName(jMethod))) {
                continue;
            }

            if (uniqueMethods.get(getSimpleName(jMethod)) != null) {
                log.warn("We don't support method overloading. Ignoring [" +
                        jMethod.getQualifiedName() + "]");
                continue;
            }

            if (!jMethod.isPublic()) {
                // no need to generate Schema for non public methods
                continue;
            }

            boolean addToService = false;
            AxisOperation axisOperation = service.getOperation(new QName(methodName));
            if (axisOperation == null) {
                axisOperation = Utils.getAxisOperationForJmethod(jMethod);
                if (WSDL2Constants.MEP_URI_ROBUST_IN_ONLY.equals(
                        axisOperation.getMessageExchangePattern())){
                    AxisMessage outMessage = axisOperation.getMessage(
                            WSDLConstants.MESSAGE_LABEL_OUT_VALUE);
                    if (outMessage !=null ){
                        outMessage.setName(methodName + RESULT);
                    }
                }
                addToService = true;
            }

            // Maintain a list of methods we actually work with
            list.add(jMethod);
            processException(jMethod,axisOperation);
            uniqueMethods.put(getSimpleName(jMethod), jMethod);
            //create the schema type for the method wrapper

            uniqueMethods.put(getSimpleName(jMethod), jMethod);
            JParameter[] paras = jMethod.getParameters();
            String parameterNames[] = methodTable.getParameterNames(methodName);
            AxisMessage inMessage = axisOperation.getMessage(WSDLConstants.MESSAGE_LABEL_IN_VALUE);
            if (inMessage != null) {
                inMessage.setName(methodName + "RequestMessage");
            }
            if (paras.length > 1) {
                sequence = new XmlSchemaSequence();
                methodSchemaType = createSchemaTypeForMethodPart(getSimpleName(jMethod));
                methodSchemaType.setParticle(sequence);
                inMessage.setElementQName(typeTable.getQNamefortheType(methodName));
                service.addMessageElementQNameToOperationMapping(methodSchemaType.getQName(),
                        axisOperation);
                inMessage.setPartName(methodName);
                for (int j = 0; j < paras.length; j++) {
                    JParameter methodParameter = paras[j];
                    if (generateRequestSchema(methodParameter, parameterNames, j, jMethod, sequence)) {
                        break;
                    }
                }
            } else if (paras.length == 1) {
                if (paras[0].getType().isArrayType()) {
                    sequence = new XmlSchemaSequence();

                    methodSchemaType = createSchemaTypeForMethodPart(methodName);
                    methodSchemaType.setParticle(sequence);
                    JParameter methodParameter = paras[0];
                    inMessage.setElementQName(typeTable.getQNamefortheType(methodName));
                    service.addMessageElementQNameToOperationMapping(methodSchemaType.getQName(),
                            axisOperation);
                    inMessage.setPartName(methodName);
                    if (generateRequestSchema(methodParameter, parameterNames, 0, jMethod, sequence)) {
                        break;
                    }
                } else {
                    String parameterName = null;
                    JParameter methodParameter = paras[0];
                    JAnnotation paramterAnnon =
                            methodParameter.getAnnotation(AnnotationConstants.WEB_PARAM);
                    if (paramterAnnon != null) {
                        parameterName =
                                paramterAnnon.getValue(AnnotationConstants.NAME).asString();
                    }
                    if (parameterName == null || "".equals(parameterName)) {
                        parameterName = (parameterNames != null && parameterNames[0] != null) ?
                                parameterNames[0] : getSimpleName(methodParameter);
                    }
                    JMethod processMethod = (JMethod) processedParameters.get(parameterName);
                    if (processMethod != null) {
                        throw new AxisFault("Inavalid Java class," +
                                " there are two methods [" + processMethod.getSimpleName() + " and " +
                                jMethod.getSimpleName() + " ]which have the same parameter names");
                    } else {
                        processedParameters.put(parameterName, jMethod);
                        generateSchemaForType(null, paras[0].getType(), parameterName);
                        inMessage.setElementQName(typeTable.getQNamefortheType(parameterName));
                        inMessage.setPartName(parameterName);
                        inMessage.setWrapped(false);
                        service.addMessageElementQNameToOperationMapping(typeTable.getQNamefortheType(parameterName),
                                axisOperation);
                    }
                }
            }

            // for its return type
            JClass returnType = jMethod.getReturnType();

            if (!returnType.isVoidType()) {
                AxisMessage outMessage = axisOperation.getMessage(
                        WSDLConstants.MESSAGE_LABEL_OUT_VALUE);
                if (returnType.isArrayType()) {
                    methodSchemaType =
                            createSchemaTypeForMethodPart(getSimpleName(jMethod) + RESULT);
                    sequence = new XmlSchemaSequence();
                    methodSchemaType.setParticle(sequence);
                    JAnnotation returnAnnon =
                            jMethod.getAnnotation(AnnotationConstants.WEB_RESULT);
                    String returnName = "return";
                    if (returnAnnon != null) {
                        returnName = returnAnnon.getValue(AnnotationConstants.NAME).asString();
                        if (returnName != null && !"".equals(returnName)) {
                            returnName = "return";
                        }
                    }
                    if (nonRpcMethods.contains(methodName)) {
                        generateSchemaForType(sequence, null, returnName);
                    } else {
                        generateSchemaForType(sequence, returnType, returnName);
                    }
                } else {
                    generateSchemaForType(null, returnType, methodName + RESULT);
                    outMessage.setWrapped(false);
                }
                outMessage.setElementQName(typeTable.getQNamefortheType(methodName + RESULT));
                outMessage.setName(methodName + "ResponseMessage");
                outMessage.setPartName(methodName + RESULT);
                service.addMessageElementQNameToOperationMapping(
                        typeTable.getQNamefortheType(methodName + RESULT),
                        axisOperation);
            }
            if (addToService) {
                service.addOperation(axisOperation);
            }
        }
        return (JMethod[]) list.toArray(new JMethod[list.size()]);
    }

    private boolean generateRequestSchema(JParameter methodParameter,
                                          String[] parameterNames,
                                          int j,
                                          JMethod jMethod,
                                          XmlSchemaSequence sequence) throws Exception {
        String parameterName = null;
        JAnnotation paramterAnnon =
                methodParameter.getAnnotation(AnnotationConstants.WEB_PARAM);
        if (paramterAnnon != null) {
            parameterName =
                    paramterAnnon.getValue(AnnotationConstants.NAME).asString();
        }
        if (parameterName == null || "".equals(parameterName)) {
            parameterName = (parameterNames != null && parameterNames[j] != null) ?
                    parameterNames[j] : getSimpleName(methodParameter);
        }
        JClass paraType = methodParameter.getType();
        if (nonRpcMethods.contains(getSimpleName(jMethod))) {
            generateSchemaForType(sequence, null, getSimpleName(jMethod));
            return true;
        } else {
            generateSchemaForType(sequence, paraType, parameterName);
        }
        return false;
    }

    private QName generateSchemaForType(XmlSchemaSequence sequence, JClass type, String partName)
            throws Exception {

        boolean isArrayType = false;
        if (type != null) {
            isArrayType = type.isArrayType();
        }
        if (isArrayType) {
            type = type.getArrayComponentType();
        }
        if (AxisFault.class.getName().equals(type)) {
            return null;
        }
        String classTypeName;
        if (type == null) {
            classTypeName = "java.lang.Object";
        } else {
            classTypeName = getQualifiedName(type);
        }
        if (isArrayType && "byte".equals(classTypeName)) {
            classTypeName = "base64Binary";
            isArrayType = false;
        }