258 lines
9.4 KiB
Java
258 lines
9.4 KiB
Java
/**
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* Copyright (C) 2007 - 2016 52°North Initiative for Geospatial Open Source
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* Software GmbH
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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* If the program is linked with libraries which are licensed under one of
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* the following licenses, the combination of the program with the linked
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* library is not considered a "derivative work" of the program:
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*
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* • Apache License, version 2.0
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* • Apache Software License, version 1.0
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* • GNU Lesser General Public License, version 3
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* • Mozilla Public License, versions 1.0, 1.1 and 2.0
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* • Common Development and Distribution License (CDDL), version 1.0
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*
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* Therefore the distribution of the program linked with libraries licensed
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* under the aforementioned licenses, is permitted by the copyright holders
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* if the distribution is compliant with both the GNU General Public
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* License version 2 and the aforementioned licenses.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*/
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package org.n52.wps.server.response;
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import java.io.IOException;
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import java.io.InputStream;
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import java.math.BigInteger;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import net.opengis.ows.x11.BoundingBoxType;
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import net.opengis.ows.x11.CodeType;
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import net.opengis.ows.x11.LanguageStringType;
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import net.opengis.wps.x100.ComplexDataType;
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import net.opengis.wps.x100.ExecuteResponseDocument;
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import net.opengis.wps.x100.LiteralDataType;
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import net.opengis.wps.x100.OutputDataType;
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import net.opengis.wps.x100.OutputReferenceType;
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import net.opengis.wps.x100.ProcessDescriptionType;
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import org.apache.commons.io.IOUtils;
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import org.apache.commons.io.output.ByteArrayOutputStream;
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import org.apache.xmlbeans.XmlException;
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import org.apache.xmlbeans.XmlObject;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.w3c.dom.Document;
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import org.w3c.dom.Node;
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import org.n52.wps.io.BasicXMLTypeFactory;
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import org.n52.wps.io.IOHandler;
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import org.n52.wps.io.data.IBBOXData;
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import org.n52.wps.io.data.IData;
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import org.n52.wps.io.data.binding.literal.AbstractLiteralDataBinding;
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import org.n52.wps.server.ExceptionReport;
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import org.n52.wps.server.database.DatabaseFactory;
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import org.n52.wps.server.database.IDatabase;
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import com.google.common.primitives.Doubles;
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/*
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* @author foerster
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*
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*/
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public class OutputDataItem extends ResponseData {
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private static final Logger LOGGER = LoggerFactory.getLogger(OutputDataItem.class);
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private static final String COMPLEX_DATA_TYPE = "ComplexDataResponse";
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private LanguageStringType title;
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/**
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*
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* @param obj
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* @param id
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* @param schema
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* @param encoding
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* @param mimeType
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* @param title
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* @param algorithmIdentifier
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* @throws ExceptionReport
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*/
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public OutputDataItem(IData obj, String id, String schema, String encoding,
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String mimeType, LanguageStringType title, String algorithmIdentifier, ProcessDescriptionType description) throws ExceptionReport {
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super(obj, id, schema, encoding, mimeType, algorithmIdentifier, description);
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this.title = title;
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}
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/**
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*
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* @param res
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* @throws ExceptionReport
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*/
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public void updateResponseForInlineComplexData(ExecuteResponseDocument res) throws ExceptionReport {
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OutputDataType output = prepareOutput(res);
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prepareGenerator();
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ComplexDataType complexData = null;
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try {
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// CHECKING IF STORE IS TRUE AND THEN PROCESSING.... SOMEHOW!
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// CREATING A COMPLEXVALUE
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// in case encoding is NULL -or- empty -or- UTF-8
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// send plain text (XML or not) in response node
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//
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// in case encoding is base64
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// send base64encoded (binary) data in node
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//
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// in case encoding is
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//
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InputStream stream = null;
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if (encoding == null || encoding.equals("") || encoding.equalsIgnoreCase(IOHandler.DEFAULT_ENCODING)){
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stream = generator.generateStream(super.obj, mimeType, schema);
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}
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// in case encoding is base64 create a new text node
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// and parse the generator's result into it
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else if (encoding.equalsIgnoreCase(IOHandler.ENCODING_BASE64)){
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stream = generator.generateBase64Stream(super.obj, mimeType, schema);
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}
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else {
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throw new ExceptionReport("Unable to generate encoding " + encoding, ExceptionReport.NO_APPLICABLE_CODE);
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}
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complexData = output.addNewData().addNewComplexData();
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if(mimeType.contains("xml") || mimeType.contains("XML")){
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complexData.set(XmlObject.Factory.parse(stream));
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stream.close();
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}else{
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DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
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Document document = builder.newDocument();
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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IOUtils.copy(stream, baos);
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stream.close();
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String text = baos.toString();
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baos.close();
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Node dataNode = document.createTextNode(text);
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complexData.set(XmlObject.Factory.parse(dataNode));
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}
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} catch(RuntimeException e) {
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LOGGER.error(e.getMessage(), e);
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throw new ExceptionReport("Could not create Inline Complex Data from the process result", ExceptionReport.NO_APPLICABLE_CODE, e);
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} catch (IOException e) {
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LOGGER.error(e.getMessage(), e);
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throw new ExceptionReport("Could not create Inline Complex Data from the process result", ExceptionReport.NO_APPLICABLE_CODE, e);
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} catch (XmlException e) {
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LOGGER.error(e.getMessage(), e);
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throw new ExceptionReport("Could not create Inline Complex Data from the process result. Check encoding (base64 for inline binary data or UTF-8 for XML based data)", ExceptionReport.NO_APPLICABLE_CODE, e);
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} catch (ParserConfigurationException e) {
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LOGGER.error(e.getMessage(), e);
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throw new ExceptionReport("Could not create Inline Base64 Complex Data from the process result", ExceptionReport.NO_APPLICABLE_CODE, e);
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}
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if (complexData != null) {
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if (schema != null) {
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// setting the schema attribute for the output.
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complexData.setSchema(schema);
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}
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if (encoding != null) {
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complexData.setEncoding(encoding);
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}
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if (mimeType != null) {
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complexData.setMimeType(mimeType);
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}
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}
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}
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public void updateResponseForLiteralData(ExecuteResponseDocument res, String dataTypeReference){
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OutputDataType output = prepareOutput(res);
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String processValue = BasicXMLTypeFactory.getStringRepresentation(dataTypeReference, obj);
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LiteralDataType literalData = output.addNewData().addNewLiteralData();
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if (dataTypeReference != null) {
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literalData.setDataType(dataTypeReference);
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}
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literalData.setStringValue(processValue);
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if(obj instanceof AbstractLiteralDataBinding){
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String uom = ((AbstractLiteralDataBinding)obj).getUnitOfMeasurement();
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if(uom != null && !uom.equals("")){
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literalData.setUom(uom);
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}
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}
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}
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public void updateResponseAsReference(ExecuteResponseDocument res, String reqID, String mimeType) throws ExceptionReport {
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prepareGenerator();
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OutputDataType output = prepareOutput(res);
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InputStream stream;
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OutputReferenceType outReference = output.addNewReference();
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if (schema != null) {
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outReference.setSchema(schema);
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}
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if (encoding != null) {
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outReference.setEncoding(encoding);
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}
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if (mimeType != null) {
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outReference.setMimeType(mimeType);
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}
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IDatabase db = DatabaseFactory.getDatabase();
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String storeID = reqID + "" + id;
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try {
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if (encoding == null || encoding.equals("") || encoding.equalsIgnoreCase(IOHandler.DEFAULT_ENCODING)){
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stream = generator.generateStream(super.obj, mimeType, schema);
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}
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// in case encoding is base64
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else if (encoding.equalsIgnoreCase(IOHandler.ENCODING_BASE64)){
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stream = generator.generateBase64Stream(super.obj, mimeType, schema);
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}
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else {
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throw new ExceptionReport("Unable to generate encoding " + encoding, ExceptionReport.NO_APPLICABLE_CODE);
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}
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}
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catch (IOException e){
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LOGGER.error(e.getMessage(), e);
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throw new ExceptionReport("Error while generating Complex Data out of the process result", ExceptionReport.NO_APPLICABLE_CODE, e);
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}
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String storeReference = db.storeComplexValue(storeID, stream, COMPLEX_DATA_TYPE, mimeType);
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storeReference = storeReference.replace("#", "%23");
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outReference.setHref(storeReference);
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// MSS: 05-02-2009 changed default output type to text/xml to be certain that the calling application doesn't
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// serve the wrong type as it is a reference in this case.
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this.mimeType = "text/xml";
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}
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private OutputDataType prepareOutput(ExecuteResponseDocument res){
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OutputDataType output = res.getExecuteResponse().getProcessOutputs().addNewOutput();
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CodeType identifierCode = output.addNewIdentifier();
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identifierCode.setStringValue(id);
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output.setTitle(title);
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return output;
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}
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public void updateResponseForBBOXData(ExecuteResponseDocument res, IBBOXData bbox) {
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OutputDataType output = prepareOutput(res);
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BoundingBoxType bboxData = output.addNewData().addNewBoundingBoxData();
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if (bbox.getCRS() != null) {
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bboxData.setCrs(bbox.getCRS());
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}
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bboxData.setLowerCorner(Doubles.asList(bbox.getLowerCorner()));
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bboxData.setUpperCorner(Doubles.asList(bbox.getUpperCorner()));
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bboxData.setDimensions(BigInteger.valueOf(bbox.getDimension()));
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}
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}
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