Java tutorial
/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package sdmx.net.service.nsi; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.Reader; import java.io.StringReader; import java.net.MalformedURLException; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Iterator; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import org.apache.commons.io.IOUtils; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.ResponseHandler; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.InputStreamEntity; import org.apache.http.impl.client.BasicResponseHandler; import org.apache.http.impl.client.DefaultHttpClient; import org.jdom.Document; import org.jdom.output.Format; import org.jdom.output.XMLOutputter; import sdmx.Registry; import sdmx.Repository; import sdmx.Queryable; import sdmx.SdmxIO; import sdmx.common.TextOperatorType; import sdmx.commonreferences.CodeReference; import sdmx.commonreferences.CodelistReference; import sdmx.commonreferences.ConceptReference; import sdmx.commonreferences.ConceptSchemeReference; import sdmx.commonreferences.DataStructureRef; import sdmx.commonreferences.DataStructureReference; import sdmx.commonreferences.DataflowReference; import sdmx.commonreferences.IDType; import sdmx.commonreferences.ItemReference; import sdmx.commonreferences.ItemSchemeReference; import sdmx.commonreferences.ItemSchemeReferenceBase; import sdmx.commonreferences.NestedNCNameID; import sdmx.commonreferences.VersionQuery; import sdmx.exception.ParseException; import sdmx.exception.QueryableException; import sdmx.message.BaseHeaderType; import sdmx.message.DataMessage; import sdmx.message.DataQueryMessage; import sdmx.message.DataStructureQueryMessage; import sdmx.message.HeaderTimeType; import sdmx.message.PartyType; import sdmx.message.QueryMessage; import sdmx.message.SenderType; import sdmx.message.StructureType; import sdmx.net.LocalRegistry; import sdmx.query.base.QueryIDType; import sdmx.query.base.QueryNestedIDType; import sdmx.query.data.DataQueryType; import sdmx.query.datastructure.DataStructureWhereType; import sdmx.querykey.Query; import sdmx.structure.base.ItemSchemeType; import sdmx.structure.base.ItemType; import sdmx.structure.codelist.CodeType; import sdmx.structure.codelist.CodelistType; import sdmx.structure.concept.ConceptSchemeType; import sdmx.structure.concept.ConceptType; import sdmx.structure.dataflow.DataflowType; import sdmx.structure.datastructure.DataStructureType; import sdmx.util.QueryStringUtils; import sdmx.version.common.ParseDataCallbackHandler; import sdmx.version.common.ParseParams; import sdmx.version.common.SOAPStrippingInputStream; import sdmx.version.twopointone.writer.Sdmx21StructureWriter; import sdmx.version.twopointzero.QueryToSdmx20Query; import sdmx.xml.DateTime; /** * * @author James */ /** * This file is part of SdmxSax. * * SdmxSax is free software: you can redistribute it and/or modify it under the * terms of the GNU General Public License as published by the Free Software * Foundation, either version 3 of the License, or (at your option) any later * version. * * SdmxSax is distributed in the hope that it will be useful, but WITHOUT ANY * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR * A PARTICULAR PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with * SdmxSax. If not, see <http://www.gnu.org/licenses/>. * * Copyright James Gardner 2014 */ public class Sdmx20NSIQueryable implements Registry, Repository, Queryable { private String soapNamespace = "http://ec.europa.eu/eurostat/sri/service/2.0"; private String mediaType = "application/soap+xml;charset=UTF-8"; private String serviceURL = "http://data.un.org/ws/NSIStdV20Service.asmx"; private LocalRegistry local = new LocalRegistry(); List<DataflowType> dataflowList = null; private String agencyId = "UIS"; public Sdmx20NSIQueryable(String agency, String serviceURL) { this.serviceURL = serviceURL; this.agencyId = agency; } public List<DataflowType> listDataflows() { if (dataflowList != null) { return dataflowList; } dataflowList = new ArrayList<DataflowType>(); String s = QueryToSdmx20Query.toNSIGetDataStructureListQuery(this.agencyId, soapNamespace); if (SdmxIO.isDumpQuery()) { System.out.println(s); } byte[] b = s.getBytes(); StructureType st = null; try { st = SdmxIO.parseStructure(query("QueryStructureResult", new ByteArrayInputStream(b), b.length)); } catch (IOException ex) { Logger.getLogger(Sdmx20NSIQueryable.class.getName()).log(Level.SEVERE, null, ex); } catch (ParseException ex) { Logger.getLogger(Sdmx20NSIQueryable.class.getName()).log(Level.SEVERE, null, ex); } if (st == null) { dataflowList = null; return Collections.EMPTY_LIST; } dataflowList = st.getStructures().getDataflows().getDataflows(); return dataflowList; } public String getAgencyId() { return agencyId; } /** * @param agencyId the agencyId to set */ public void setAgencyId(String agencyId) { this.agencyId = agencyId; } /** * @return the serviceURL */ public String getServiceURL() { return serviceURL; } /** * @param serviceURL the serviceURL to set */ public void setServiceURL(String serviceURL) { this.serviceURL = serviceURL; } public Reader query2(String action, InputStream in, int length) { HttpClient client = new DefaultHttpClient(); try { HttpPost req = new HttpPost(getServiceURL()); req.setHeader("Content-Type", mediaType); //req.setHeader("Accept","application/xml"); HttpEntity entity = new InputStreamEntity(in, length); req.setEntity(entity); ResponseHandler<String> responseHandler = new BasicResponseHandler(); String responseBody = client.execute(req, responseHandler); int fromIndex = responseBody.indexOf(action, 0); fromIndex = (responseBody.indexOf(">", fromIndex + action.length())) + 1; int toIndex = responseBody.lastIndexOf("</" + action); responseBody = responseBody.substring(fromIndex, toIndex); Reader reader = new StringReader(responseBody); if (SdmxIO.isSaveXml()) { String name = System.currentTimeMillis() + ".xml"; FileOutputStream file = new FileOutputStream(name + ".xml"); IOUtils.copy(reader, file); FileInputStream in2 = new FileInputStream(name + ".xml"); reader = new InputStreamReader(in2); } return reader; } catch (Exception ex) { ex.printStackTrace(); return null; } } public Reader query(String action, InputStream in, int length) { HttpClient client = new DefaultHttpClient(); try { HttpPost req = new HttpPost(getServiceURL()); req.setHeader("Content-Type", mediaType); //req.setHeader("Accept","application/xml"); HttpEntity entity = new InputStreamEntity(in, length); req.setEntity(entity); HttpResponse response = client.execute(req); InputStream socket = response.getEntity().getContent(); if (SdmxIO.isSaveXml()) { String name = System.currentTimeMillis() + ".xml"; FileOutputStream file = new FileOutputStream(name); IOUtils.copy(socket, file); socket = new FileInputStream(name); } if (response.getStatusLine().getStatusCode() == 200) { SOAPStrippingInputStream stripper = new SOAPStrippingInputStream(socket, "<" + action + ">", "</" + action + ">"); InputStreamReader isr = new InputStreamReader(stripper); return isr; } else { System.out.println("Response=" + response.getStatusLine().getStatusCode()); System.out.println(Arrays.toString(response.getAllHeaders())); IOUtils.copy(socket, System.out); return null; } } catch (Exception ex) { ex.printStackTrace(); return null; } } /** * @return the soapNamespace */ public String getSoapNamespace() { return soapNamespace; } /** * @param soapNamespace the soapNamespace to set */ public void setSoapNamespace(String soapNamespace) { this.soapNamespace = soapNamespace; } /** * @return the mediaType */ public String getMediaType() { return mediaType; } /** * @param mediaType the mediaType to set */ public void setMediaType(String mediaType) { this.mediaType = mediaType; } public Registry getRegistry() { return this; } public BaseHeaderType getBaseHeader() { BaseHeaderType header = new BaseHeaderType(); header.setId("none"); header.setTest(false); SenderType sender = new SenderType(); sender.setId(new IDType("Sdmx-Sax")); header.setSender(sender); PartyType receiver = new PartyType(); receiver.setId(new IDType(agencyId)); header.setReceivers(Collections.singletonList(receiver)); HeaderTimeType htt = new HeaderTimeType(); htt.setDate(DateTime.now()); header.setPrepared(htt); return header; } @Override public void load(StructureType struct) { local.load(struct); } @Override public void unload(StructureType struct) { local.unload(struct); } @Override public void clear() { local.clear(); } @Override public DataStructureType find(DataStructureReference ref) { DataStructureType dst = local.find(ref); if (dst == null) { String s = QueryToSdmx20Query.toNSIGetDataStructureQuery(ref.getMaintainableParentId().toString(), this.agencyId, soapNamespace); if (SdmxIO.isDumpQuery()) { System.out.println(s); } byte[] b = s.getBytes(); StructureType st = null; try { st = SdmxIO.parseStructure(query("QueryStructureResult", new ByteArrayInputStream(b), b.length)); } catch (IOException ex) { Logger.getLogger(Sdmx20NSIQueryable.class.getName()).log(Level.SEVERE, null, ex); } catch (ParseException ex) { Logger.getLogger(Sdmx20NSIQueryable.class.getName()).log(Level.SEVERE, null, ex); } local.load(st); return local.find(ref); } return dst; } @Override public DataflowType find(DataflowReference ref) { for (DataflowType df2 : listDataflows()) { if (df2.identifiesMe(ref.getAgencyId(), ref.getMaintainableParentId(), ref.getVersion())) { return df2; } } return local.find(ref); } @Override public CodeType find(CodeReference ref) { return local.find(ref); } @Override public CodelistType find(CodelistReference ref) { return local.find(ref); } @Override public ConceptType find(ConceptReference ref) { return local.find(ref); } @Override public ConceptSchemeType find(ConceptSchemeReference ref) { return local.find(ref); } @Override public Repository getRepository() { return this; } @Override public ItemType find(ItemReference ref) { ConceptType concept = find(ConceptReference.create(ref.getAgencyId(), ref.getMaintainableParentId(), ref.getVersion(), ref.getId())); if (concept != null) { return concept; } CodeType code = find(CodeReference.create(ref.getAgencyId(), ref.getMaintainableParentId(), ref.getVersion(), ref.getId())); return code; } @Override public ItemSchemeType find(ItemSchemeReferenceBase ref) { ConceptSchemeType concept = find( ConceptSchemeReference.create(ref.getAgencyId(), ref.getMaintainableParentId(), ref.getVersion())); if (concept != null) { return concept; } CodelistType code = find( CodelistReference.create(ref.getAgencyId(), ref.getMaintainableParentId(), ref.getVersion())); return code; } @Override public void save(OutputStream out) throws IOException { local.save(out); } public void merge() { } @Override public List<DataStructureType> search(DataStructureReference ref) { return Collections.EMPTY_LIST; } @Override public List<DataflowType> search(DataflowReference ref) { return Collections.EMPTY_LIST; } @Override public List<CodeType> search(CodeReference ref) { return Collections.EMPTY_LIST; } @Override public List<CodelistType> search(CodelistReference ref) { return Collections.EMPTY_LIST; } @Override public List<ItemType> search(ItemReference ref) { return Collections.EMPTY_LIST; } @Override public List<ItemSchemeType> search(ItemSchemeReferenceBase ref) { return Collections.EMPTY_LIST; } @Override public List<ConceptType> search(ConceptReference ref) { return Collections.EMPTY_LIST; } @Override public List<ConceptSchemeType> search(ConceptSchemeReference ref) { return Collections.EMPTY_LIST; } public List<StructureType> getCache() { return this.local.getCache(); } @Override public DataMessage query(Query query) throws ParseException, IOException { String s = QueryToSdmx20Query.toNSIGetDataQuery(query, soapNamespace); if (SdmxIO.isDumpQuery()) { System.out.println(s); } byte[] b = s.getBytes(); return SdmxIO.parseData(query("GetCompactDataResult", new ByteArrayInputStream(b), b.length)); } @Override public void query(Query query, ParseDataCallbackHandler handler) throws ParseException, IOException { String s = QueryToSdmx20Query.toNSIGetDataQuery(query, soapNamespace); if (SdmxIO.isDumpQuery()) { System.out.println(s); } byte[] b = s.getBytes(); SdmxIO.parseDataStream(handler, query("GetCompactDataResult", new ByteArrayInputStream(b), b.length)); } }