| /* |
| * 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.dataretrieval; |
| |
| import org.apache.axiom.om.OMNode; |
| import org.apache.axis2.context.MessageContext; |
| import org.apache.axis2.description.AxisService; |
| import org.apache.axis2.util.XMLUtils; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.ws.commons.schema.XmlSchema; |
| |
| import javax.xml.stream.XMLStreamException; |
| import java.io.StringReader; |
| import java.io.StringWriter; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| |
| /** |
| * Axis 2 Data Locator responsibles for retrieving Schema metadata. The class is |
| * created as model for schema specific data locator; and also easier for any |
| * future implementation schema specific data retrieval logic. |
| */ |
| |
| public class SchemaDataLocator extends BaseAxisDataLocator implements |
| AxisDataLocator { |
| |
| private String requestIdentifier = null; |
| |
| private String serviceEPR = null; |
| |
| /** |
| * |
| */ |
| private static final Log LOG = LogFactory.getLog(SchemaDataLocator.class |
| .getClass().getName()); |
| |
| protected SchemaDataLocator() { |
| |
| } |
| |
| /** |
| * Constructor |
| */ |
| protected SchemaDataLocator(ServiceData[] data) { |
| dataList = data; |
| } |
| |
| public Data[] getData(DataRetrievalRequest request, |
| MessageContext msgContext) throws DataRetrievalException { |
| |
| requestIdentifier = request.getIdentifier(); |
| serviceEPR = msgContext.getTo().getAddress(); |
| |
| OutputForm outputForm = request.getOutputForm(); |
| if (outputForm == null) { |
| outputForm = OutputForm.INLINE_FORM; |
| } |
| |
| Data[] data; |
| |
| if (outputForm == OutputForm.INLINE_FORM) { |
| data = outputInlineForm(msgContext, dataList); |
| |
| } else if (outputForm == OutputForm.LOCATION_FORM) { |
| data = outputLocationForm(dataList); |
| |
| } else { |
| data = outputReferenceForm(msgContext, dataList); |
| } |
| |
| return data; |
| } |
| |
| protected Data[] outputInlineForm(MessageContext msgContext, |
| ServiceData[] serviceData) throws DataRetrievalException { |
| |
| Data[] data = super.outputInlineForm(msgContext, serviceData); |
| |
| if (data.length != 0) { |
| return data; |
| } |
| |
| AxisService axisService = msgContext.getAxisService(); |
| ArrayList schemaList = axisService.getSchema(); |
| |
| ArrayList results = new ArrayList(); |
| XmlSchema schema; |
| |
| for (Iterator iterator = schemaList.iterator(); iterator.hasNext();) { |
| schema = (XmlSchema) iterator.next(); |
| |
| if (requestIdentifier != null) { |
| if (requestIdentifier.equals(schema.getTargetNamespace())) { |
| results.add(new Data(convertToOM(schema), requestIdentifier)); |
| } |
| } else { |
| results.add(new Data(convertToOM(schema), null)); |
| } |
| } |
| |
| return (Data[]) results.toArray(new Data[results.size()]); |
| } |
| |
| protected Data[] outputLocationForm(ServiceData[] serviceData) |
| throws DataRetrievalException { |
| |
| Data[] data = super.outputLocationForm(serviceData); |
| |
| if (data != null && data.length != 0) { |
| return data; |
| } |
| return new Data[] { new Data(serviceEPR + "?xsd", requestIdentifier) }; |
| } |
| |
| private OMNode convertToOM(XmlSchema schema) throws DataRetrievalException { |
| StringWriter writer = new StringWriter(); |
| schema.write(writer); |
| |
| StringReader reader = new StringReader(writer.toString()); |
| try { |
| return XMLUtils.toOM(reader); |
| } catch (XMLStreamException e) { |
| throw new DataRetrievalException( |
| "Can't convert XmlSchema object to an OMElement", e); |
| } |
| } |
| } |