PGP general flow (X send to Y): At X side sending, sign with X private key, Encrypt with Y public key. At Y side receiving, verify with X public key, Decrypt with Y private key. Below show an example usage
Seeburger SFTP Receiver Adapter with Dynamic Filename
Below show example usage of SFTP receiver adapter: Host name is target SFTP host want to connect. Port is default 22. Known hosts store is the key store view that contain SSH cert of the host. For the first time
SAP PI Custom Module PayloadAddBOMBean Development
Custom module to add byte order mark (BOM) characters to output file:
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package com.test; import java.io.ByteArrayOutputStream; import java.io.InputStream; import javax.ejb.Stateless; import com.sap.aii.af.lib.mp.module.ModuleContext; import com.sap.aii.af.lib.mp.module.ModuleData; import com.sap.aii.af.lib.mp.module.ModuleException; import com.sap.engine.interfaces.messaging.api.Message; import com.sap.engine.interfaces.messaging.api.Payload; @Stateless public class PayloadAddBOMBean implements PayloadAddBOMBeanRemote, PayloadAddBOMBeanLocal { public PayloadAddBOMBean() { } public ModuleData process(ModuleContext moduleContext, ModuleData inputModuleData)throws ModuleException{ try { Object obj = inputModuleData.getPrincipalData(); Message msg = (Message)obj; Payload payload = msg.getDocument(); InputStream inputStream = (InputStream)payload.getInputStream(); byte[] inputBytes = new byte[inputStream.available()]; inputStream.read(inputBytes); ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); outputStream.write(0xEF); outputStream.write(0xBB); outputStream.write(0xBF); outputStream.write(inputBytes); byte[] outputBytes = outputStream.toByteArray(); payload.setContent(outputBytes); inputModuleData.setPrincipalData(msg); return inputModuleData; } catch (Exception excep) { ModuleException modulExcep = new ModuleException( excep.getMessage()); throw modulExcep; } } } |
SAP PI Custom Module DynamicFileNameBean Development
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package com.test; import java.util.ArrayList; import java.util.Arrays; import java.util.Date; import java.util.Enumeration; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.regex.Matcher; import java.util.regex.Pattern; import java.io.File; import java.text.SimpleDateFormat; import javax.ejb.Stateless; import javax.xml.namespace.NamespaceContext; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.xpath.XPath; import javax.xml.xpath.XPathConstants; import javax.xml.xpath.XPathExpression; import javax.xml.xpath.XPathExpressionException; import javax.xml.xpath.XPathFactory; import com.sap.aii.af.lib.mp.module.ModuleContext; import com.sap.aii.af.lib.mp.module.ModuleData; import com.sap.aii.af.lib.mp.module.ModuleException; import com.sap.engine.interfaces.messaging.api.Message; import com.sap.engine.interfaces.messaging.api.MessageKey; import com.sap.engine.interfaces.messaging.api.MessagePropertyKey; import com.sap.engine.interfaces.messaging.api.PublicAPIAccessFactory; import com.sap.engine.interfaces.messaging.api.XMLPayload; import com.sap.engine.interfaces.messaging.api.auditlog.AuditAccess; import com.sap.engine.interfaces.messaging.api.auditlog.AuditLogStatus; import com.sap.engine.interfaces.messaging.api.exception.MessagingException; import org.apache.commons.lang3.StringUtils; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NamedNodeMap; import org.w3c.dom.Node; import org.w3c.dom.NodeList; @Stateless public class DynamicFileNameBean implements DynamicFileNameBeanRemote, DynamicFileNameBeanLocal { private AuditAccess audit; private MessageKey msgkey; private Map<String, String> prefixNSmap; private Document document; public DynamicFileNameBean() { try { this.audit = PublicAPIAccessFactory.getPublicAPIAccess().getAuditAccess(); } catch (MessagingException e) { this.audit = null; } } @SuppressWarnings("unchecked") public ModuleData process(ModuleContext moduleContext, ModuleData inputModuleData)throws ModuleException{ try { Message msg = (Message)inputModuleData.getPrincipalData(); this.prefixNSmap = new HashMap<String, String>(); this.msgkey = new MessageKey(msg.getMessageId(), msg.getMessageDirection()); addLog(AuditLogStatus.SUCCESS, "Begin DynamicFileNameBean processing..."); Enumeration oContextDataKeys; //Process setASMA & setVariable oContextDataKeys = moduleContext.getContextDataKeys(); while(oContextDataKeys.hasMoreElements()){ String cdk = (String)oContextDataKeys.nextElement(); if(StringUtils.startsWithIgnoreCase(cdk, "setASMA")){ addLog(AuditLogStatus.SUCCESS, "Process " + cdk); String sAttribute = StringUtils.split(cdk, "@")[1]; String sNamespace = StringUtils.split(cdk, "@")[2]; String sPattern = moduleContext.getContextData(cdk); addLog(AuditLogStatus.SUCCESS, "INPUT: Namespace=" + sNamespace + "; " + "Attribute=" + sAttribute + "; Pattern=" + sPattern); String sPatternOutput = processPattern(sPattern, msg, msgkey, inputModuleData); MessagePropertyKey mpk = new MessagePropertyKey(sAttribute, sNamespace); msg.removeMessageProperty(mpk); msg.setMessageProperty(mpk, sPatternOutput); addLog(AuditLogStatus.SUCCESS, "OUTPUT: Namespace=" + sNamespace + "; " + "Attribute=" + sAttribute + "; Value=" + sPatternOutput); } } inputModuleData.setPrincipalData(msg); addLog(AuditLogStatus.SUCCESS, "End DynamicFileNameBean processing..."); return inputModuleData; } catch (Exception e){ ModuleException me = new ModuleException( e.toString()); throw me; } } public String processPattern(String sPattern, Message msg, MessageKey msgkey, ModuleData inputModuleData) { String sOutput = ""; try{ ArrayList<String> sTokenList = new ArrayList<String>(Arrays.asList(sPattern.split(" *& *"))); for(int i=0; i<sTokenList.size(); i++){ String sToken = sTokenList.get(i); String sExpResult = ""; ArrayList<String> sExpression = new ArrayList<String>(Arrays.asList(sToken.split(" *\\Q|\\E *"))); for(int j=0; j<sExpression.size(); j++){ String sExp = sExpression.get(j); String sExpResultBefore = sExpResult; if(StringUtils.startsWithAny(sExp, new String[]{"\"", "\'"}) && StringUtils.endsWithAny(sExp, new String[]{"\"", "\'"})){ sExpResult = StringUtils.strip(sExp, "\"\'"); }else if(!sExp.contains("(")){ sExpResult = sExp; }else{ String sFunction = StringUtils.substringBefore(sExp, "("); String sArgument = StringUtils.chop(StringUtils.substringAfter(sExp, "(")); String sArg[] = sArgument.split("(?x) " + ", " + // Split on comma "(?= " + // Followed by " (?: " + // Start a non-capture group " [^\"]* " + // 0 or more non-quote characters " \" " + // 1 quote " [^\"]* " + // 0 or more non-quote characters " \" " + // 1 quote " )* " + // 0 or more repetition of non-capture group (multiple of 2 quotes will be even) " [^\"]* " + // Finally 0 or more non-quotes " $ " + // Till the end (This is necessary, else every comma will satisfy the condition) ") " // End look-ahead ); for(int k=0; k<sArg.length; k++){ sArg[k] = StringUtils.strip(sArg[k], "\"\'"); } sExpResult = executeFunction(sExpResult, inputModuleData, msg, sFunction, sArg); } if(!sExpResultBefore.isEmpty()){ sExpResultBefore = sExpResultBefore + "|"; } addLog(AuditLogStatus.SUCCESS, "Input=" + sExpResultBefore + sExp + "; Output=" + sExpResult); } sOutput = sOutput + sExpResult; } }catch(Exception ex) { addLog(AuditLogStatus.ERROR, "Failed at processPattern=" + sPattern); } return sOutput; } public void addLog(AuditLogStatus status, String message) { if (this.audit != null) { this.audit.addAuditLogEntry(this.msgkey, status, message); }else { System.out.println( "Audit Log: " + message); } } public Document getDocument(Message msg){ if(this.document == null){ XMLPayload xmlpayload = msg.getDocument(); DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); factory.setNamespaceAware(true); DocumentBuilder builder; try { builder = factory.newDocumentBuilder(); this.document = builder.parse(xmlpayload.getInputStream()); } catch (Exception ex) { addLog(AuditLogStatus.SUCCESS, "Failed at getDocument parse xmlpayload."); } return this.document; }else{ return this.document; } } public void addPrefixNamespaceMap(Node root){ NamedNodeMap attributes = root.getAttributes(); if (attributes != null){ for (int i = 0; i < attributes.getLength(); i++){ Node node = attributes.item(i); if (node.getNodeType() == Node.ATTRIBUTE_NODE){ String name = node.getNodeName(); if(StringUtils.startsWithIgnoreCase(name, "xmlns")){ String sPrefix = StringUtils.substringAfter(name, ":"); String sNamespace = node.getNodeValue(); this.prefixNSmap.put(sPrefix, sNamespace); addLog(AuditLogStatus.SUCCESS, "Added prefix namespace map; Prefix=" + sPrefix + "; " + "Namespace=" + sNamespace); } } } } } public void addPrefixNamespaceMapRecursive(Node root) { addPrefixNamespaceMap(root); NodeList childNodes = root.getChildNodes(); for (int i = 0; i < childNodes.getLength(); i++){ addPrefixNamespaceMapRecursive(childNodes.item(i)); } } public String executeFunction(String sIn, ModuleData inputModuleData, Message msg, String sFunction, String[] sArg){ String sOut = sIn; if(sFunction.equalsIgnoreCase("getASMA")){ MessagePropertyKey mpk = new MessagePropertyKey(sArg[0],sArg[1]); sOut = msg.getMessageProperty(mpk); } else if(sFunction.equalsIgnoreCase("XPath")){ Element root = getDocument(msg).getDocumentElement(); if(prefixNSmap.size() == 0){ addPrefixNamespaceMapRecursive((Node) root); } try { XPath xpath = XPathFactory.newInstance().newXPath(); xpath.setNamespaceContext(new NamespaceContext() { public String getNamespaceURI(String prefix) { return prefixNSmap.get(prefix); } public Iterator<String> getPrefixes(String val) { return null; } public String getPrefix(String uri) { return null; } }); XPathExpression expr; expr = xpath.compile(sArg[0]); Object result = expr.evaluate(root, XPathConstants.NODESET); NodeList nodes = (NodeList)result; if ((nodes != null) && (nodes.getLength() > 0)){ sOut = nodes.item(0).getChildNodes().item(0).getNodeValue(); } } catch (XPathExpressionException e) { addLog(AuditLogStatus.SUCCESS, "Failed at XPath function."); } } else if(sFunction.equalsIgnoreCase("getSAPSYSTEMNAME")){ sOut = System.getProperty("SAPSYSTEMNAME", ""); } else if(sFunction.equalsIgnoreCase("getSAPSYSTEM")){ sOut = System.getProperty("SAPSYSTEM", ""); } else if(sFunction.equalsIgnoreCase("getCorrelationId")){ sOut = msg.getCorrelationId(); } else if(sFunction.equalsIgnoreCase("getMessageId")){ sOut = msg.getMessageId(); } else if(sFunction.equalsIgnoreCase("getProtocol")){ sOut = msg.getProtocol(); } else if(sFunction.equalsIgnoreCase("getRefToMessageId")){ sOut = msg.getRefToMessageId(); } else if(sFunction.equalsIgnoreCase("getDeliverySemantics")){ sOut = msg.getDeliverySemantics().toString(); } else if(sFunction.equalsIgnoreCase("getFromParty")){ sOut = msg.getFromParty().getName(); } else if(sFunction.equalsIgnoreCase("getSequenceId")){ sOut = msg.getSequenceId(); } else if(sFunction.equalsIgnoreCase("getFromService")){ sOut = msg.getFromService().getName(); } else if(sFunction.equalsIgnoreCase("getMessageClass")){ sOut = msg.getMessageClass().toString(); } else if(sFunction.equalsIgnoreCase("getMessageDirection")){ sOut = msg.getMessageDirection().toString(); } else if(sFunction.equalsIgnoreCase("getToParty")){ sOut = msg.getToParty().getName(); } else if(sFunction.equalsIgnoreCase("getToService")){ sOut = msg.getToService().getName(); } else if(sFunction.equalsIgnoreCase("appendIfMissing")){ sOut = StringUtils.appendIfMissing(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("appendIfMissingIgnoreCase")){ sOut = StringUtils.appendIfMissingIgnoreCase(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("capitalize")){ sOut = StringUtils.capitalize(sIn); } else if(sFunction.equalsIgnoreCase("center")){ if(sArg.length == 1){ sOut = StringUtils.center(sIn, Integer.parseInt(sArg[0])); } else if(sArg.length == 2){ sOut = StringUtils.center(sIn, Integer.parseInt(sArg[0]), sArg[1]); } } else if(sFunction.equalsIgnoreCase("chop")){ sOut = StringUtils.chop(sIn); } else if(sFunction.equalsIgnoreCase("concat")){ sOut = sIn.concat(sArg[0]); } else if(sFunction.equalsIgnoreCase("left")){ sOut = StringUtils.left(sIn, Integer.parseInt(sArg[0])); } else if(sFunction.equalsIgnoreCase("leftPad")){ sOut = StringUtils.leftPad(sIn, Integer.parseInt(sArg[0]), sArg[1]); } else if(sFunction.equalsIgnoreCase("normalizeSpace")){ sOut = StringUtils.normalizeSpace(sIn); } else if(sFunction.equalsIgnoreCase("prependIfMissing")){ sOut = StringUtils.prependIfMissing(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("prependIfMissingIgnoreCase")){ sOut = StringUtils.prependIfMissingIgnoreCase(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("remove")){ sOut = StringUtils.remove(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("removeEnd")){ sOut = StringUtils.removeEnd(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("removeEndIgnoreCase")){ sOut = StringUtils.removeEndIgnoreCase(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("removePattern")){ sOut = StringUtils.removePattern(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("removeStart")){ sOut = StringUtils.removeStart(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("removeStartIgnoreCase")){ sOut = StringUtils.removeStartIgnoreCase(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("repeat")){ if(sArg.length == 1){ sOut = sOut + StringUtils.repeat(sIn, Integer.parseInt(sArg[0])); }if(sArg.length == 2){ sOut = sOut + StringUtils.repeat(sIn, sArg[0], Integer.parseInt(sArg[1])); } } else if(sFunction.equalsIgnoreCase("replace")){ if(sArg.length == 2){ sOut = StringUtils.replace(sIn, sArg[0], sArg[1]); }else if(sArg.length == 3){ sOut = StringUtils.replace(sIn, sArg[0], sArg[1], Integer.parseInt(sArg[2])); } } else if(sFunction.equalsIgnoreCase("replaceOnce")){ sOut = StringUtils.replace(sIn, sArg[0], sArg[1]); } else if(sFunction.equalsIgnoreCase("replacePattern")){ sOut = StringUtils.replacePattern(sIn, sArg[0], sArg[1]); } else if(sFunction.equalsIgnoreCase("reverse")){ sOut = StringUtils.reverse(sIn); } else if(sFunction.equalsIgnoreCase("reverseDelimited")){ sOut = StringUtils.reverseDelimited(sIn, sArg[0].toCharArray()[0]); } else if(sFunction.equalsIgnoreCase("right")){ sOut = StringUtils.right(sIn, Integer.parseInt(sArg[0])); } else if(sFunction.equalsIgnoreCase("rightPad")){ if(sArg.length == 2){ sOut = StringUtils.rightPad(sIn, Integer.parseInt(sArg[0])); }else if(sArg.length == 3){ sOut = StringUtils.rightPad(sIn, Integer.parseInt(sArg[0]), sArg[1]); } } else if(sFunction.equalsIgnoreCase("splitRegEx")){ try{ ArrayList<String> foundList = new ArrayList<String>(Arrays.asList(sIn.split(sArg[0]))); sOut = foundList.get(Integer.parseInt(sArg[1])); }catch(Exception ex){ sOut = ""; } } else if(sFunction.equalsIgnoreCase("substring")){ if(sArg.length == 1){ sOut = sOut + StringUtils.substring(sIn, Integer.parseInt(sArg[0])); }else if(sArg.length == 2){ sOut = sOut + StringUtils.substring(sIn, Integer.parseInt(sArg[0]), Integer.parseInt(sArg[1])); } } else if(sFunction.equalsIgnoreCase("substringAfter")){ sOut = sOut + StringUtils.substringAfter(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("substringAfterLast")){ sOut = sOut + StringUtils.substringAfterLast(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("substringBefore")){ sOut = sOut + StringUtils.substringBefore(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("substringBeforeLast")){ sOut = sOut + StringUtils.substringBeforeLast(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("substringBetween")){ if(sArg.length == 1){ sOut = sOut + StringUtils.substringBetween(sIn, sArg[0]); }else if(sArg.length == 2){ sOut = sOut + StringUtils.substringBetween(sIn, sArg[0], sArg[1]); } } else if(sFunction.equalsIgnoreCase("substringRegEx")){ try{ Pattern p = Pattern.compile(sArg[0]); Matcher m = p.matcher(sIn); ArrayList<String> foundList = new ArrayList<String>(); while(m.find()){ foundList.add(m.group(1)); } if(sArg.length == 1){ sOut = foundList.get(0); }else if(sArg.length == 2){ sOut = foundList.get(Integer.parseInt(sArg[1])-1); } }catch(Exception ex){ sOut = ""; } } else if(sFunction.equalsIgnoreCase("toLowerCase")){ sOut = sIn.toLowerCase(); } else if(sFunction.equalsIgnoreCase("toUpperCase")){ sOut = sIn.toUpperCase(); } else if(sFunction.equalsIgnoreCase("trim")){ sOut = sIn.trim(); } else if(sFunction.equalsIgnoreCase("uncapitalize")){ sOut = StringUtils.uncapitalize(sIn); } else if(sFunction.equalsIgnoreCase("wrap")){ sOut = StringUtils.wrap(sIn, sArg[0]); } else if(sFunction.equalsIgnoreCase("getTimestamp")){ if(sArg[0].isEmpty()){ sArg[0] = "yyyyMMDD_HHmmss_SSS"; } Date date = new Date(); SimpleDateFormat sdf = new SimpleDateFormat(sArg[0]); sOut = sdf.format(date); } return sOut; } } |
File Adapter – Sender – Convert Multiple Fixed Length Structure to XML Using Key Field Name
This example convert 2 different recordsets inside single file to xml. First recordset is “SINGER”, second recordset is “SONG”. First column is 1 character length. It is a key column to identify different recordset. “A” from first half mean SINGER,
File Adapter – Sender – Convert Single Fixed Length Structure to XML
Previous example tested the CSV file with delimiter, now look at fixed-length file. The objective is to convert fixed-length file to xml representation. ABB, FULLNAME, GENDER and COUNTRY, each is with length 5,20,7,10 respectively. Example: The target message type
File Adapter – Sender – Content Conversion to Convert CSV file to XML
The objective is to convert csv file to xml representation. Example: The target message type is 2 columns that repeatable at node row. Document Name is the target message type. Document Namespace should be the namespace of the message type.