/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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 Lesser General Public License for more details.
*
* Copyright (c) 2002-2016 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.di.job.entries.hl7mllpin;
import java.util.List;
import org.pentaho.di.cluster.SlaveServer;
import org.pentaho.di.core.util.Utils;
import org.pentaho.di.core.Result;
import org.pentaho.di.core.database.DatabaseMeta;
import org.pentaho.di.core.exception.KettleDatabaseException;
import org.pentaho.di.core.exception.KettleException;
import org.pentaho.di.core.exception.KettleXMLException;
import org.pentaho.di.core.xml.XMLHandler;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.job.entry.JobEntryBase;
import org.pentaho.di.job.entry.JobEntryInterface;
import org.pentaho.di.repository.ObjectId;
import org.pentaho.di.repository.Repository;
import org.pentaho.di.trans.steps.hl7input.common.MLLPSocketCache;
import org.pentaho.di.trans.steps.hl7input.common.MLLPSocketCacheEntry;
import org.pentaho.metastore.api.IMetaStore;
import org.w3c.dom.Node;
import ca.uhn.hl7v2.model.Message;
import ca.uhn.hl7v2.model.Structure;
import ca.uhn.hl7v2.parser.GenericParser;
import ca.uhn.hl7v2.parser.Parser;
import ca.uhn.hl7v2.protocol.Transportable;
import ca.uhn.hl7v2.protocol.impl.MLLPTransport;
import ca.uhn.hl7v2.validation.ValidationContext;
import ca.uhn.hl7v2.validation.impl.NoValidation;
/**
* HL7 MLLP Input
*
* @since 24-03-2011
* @author matt
*/
@org.pentaho.di.core.annotations.JobEntry( id = "HL7MLLPInput",
categoryDescription = "i18n:org.pentaho.di.job:JobCategory.Category.Utility",
i18nPackageName = "org.pentaho.di.job.entries.hl7mllpin", image = "mllp-in.svg", name = "HL7MLLPInput.Name",
documentationUrl = "http://wiki.pentaho.com/display/EAI/HL7+MLLP+Input",
description = "HL7MLLPInput.TooltipDesc" )
public class HL7MLLPInput extends JobEntryBase implements Cloneable, JobEntryInterface {
private static Class<?> PKG = HL7MLLPInput.class; // for i18n purposes, needed by Translator2!!
private String server;
private String port;
private String messageVariableName;
private String messageTypeVariableName;
private String versionVariableName;
public HL7MLLPInput( String name ) {
super( name, "" );
setID( -1L );
messageVariableName = "MESSAGE";
messageTypeVariableName = "MESSAGE_TYPE";
versionVariableName = "MESSAGE_VERSION";
}
public HL7MLLPInput() {
this( "" );
}
public Object clone() {
HL7MLLPInput je = (HL7MLLPInput) super.clone();
return je;
}
public String getXML() {
StringBuffer retval = new StringBuffer( 128 );
retval.append( super.getXML() );
retval.append( " " ).append( XMLHandler.addTagValue( "server", server ) );
retval.append( " " ).append( XMLHandler.addTagValue( "port", port ) );
retval.append( " " ).append( XMLHandler.addTagValue( "message_variable", messageVariableName ) );
retval.append( " " ).append( XMLHandler.addTagValue( "type_variable", messageTypeVariableName ) );
retval.append( " " ).append( XMLHandler.addTagValue( "version_variable", versionVariableName ) );
return retval.toString();
}
public void loadXML( Node entrynode, List<DatabaseMeta> databases, List<SlaveServer> slaveServers, Repository rep,
IMetaStore metaStore ) throws KettleXMLException {
try {
super.loadXML( entrynode, databases, slaveServers );
server = XMLHandler.getTagValue( entrynode, "server" );
port = XMLHandler.getTagValue( entrynode, "port" );
messageVariableName = XMLHandler.getTagValue( entrynode, "message_variable" );
messageTypeVariableName = XMLHandler.getTagValue( entrynode, "type_variable" );
versionVariableName = XMLHandler.getTagValue( entrynode, "version_variable" );
} catch ( KettleXMLException xe ) {
throw new KettleXMLException( "Unable to load job entry from XML node", xe );
}
}
@Override
public void loadRep( Repository rep, IMetaStore metaStore, ObjectId idJobentry, List<DatabaseMeta> databases,
List<SlaveServer> slaveServers ) throws KettleException {
try {
server = rep.getJobEntryAttributeString( idJobentry, "server" );
port = rep.getJobEntryAttributeString( idJobentry, "port" );
messageVariableName = rep.getJobEntryAttributeString( idJobentry, "message_variable" );
messageTypeVariableName = rep.getJobEntryAttributeString( idJobentry, "type_variable" );
versionVariableName = rep.getJobEntryAttributeString( idJobentry, "version_variable" );
} catch ( KettleException dbe ) {
throw new KettleException( "Unable to load job entry from the repository for id_jobentry=" + idJobentry, dbe );
}
}
public void saveRep( Repository rep, IMetaStore metaStore, ObjectId id_job ) throws KettleException {
try {
rep.saveJobEntryAttribute( id_job, getObjectId(), "server", server );
rep.saveJobEntryAttribute( id_job, getObjectId(), "port", port );
rep.saveJobEntryAttribute( id_job, getObjectId(), "message_variable", messageVariableName );
rep.saveJobEntryAttribute( id_job, getObjectId(), "type_variable", messageTypeVariableName );
rep.saveJobEntryAttribute( id_job, getObjectId(), "version_variable", versionVariableName );
} catch ( KettleDatabaseException dbe ) {
throw new KettleException( "Unable to save job entry of type 'ftp' to the repository for id_job=" + id_job, dbe );
}
}
public Result execute( Result previousResult, int nr ) {
Result result = previousResult;
try {
String serverName = environmentSubstitute( server );
int portNumber = Integer.parseInt( environmentSubstitute( port ) );
String messageVariable = environmentSubstitute( messageVariableName );
String messageTypeVariable = environmentSubstitute( messageTypeVariableName );
String versionVariable = environmentSubstitute( versionVariableName );
MLLPSocketCacheEntry entry = MLLPSocketCache.getInstance().getServerSocketStreamSource( serverName, portNumber );
if ( entry.getJobListener() != null ) {
parentJob.addJobListener( entry.getJobListener() );
}
MLLPTransport transport = entry.getTransport();
// Get the next value...
//
synchronized ( transport ) {
Transportable transportable = transport.doReceive();
String message = transportable.getMessage();
logDetailed( "Received message: " + message );
parentJob.setVariable( messageVariable, message );
// Parse the message and extract the control ID.
//
Parser parser = new GenericParser();
ValidationContext validationContext = new NoValidation();
parser.setValidationContext( validationContext );
Message msg = parser.parse( message );
Structure structure = msg.get( "MSH" );
String messageType = null;
String version = msg.getVersion();
if ( structure instanceof ca.uhn.hl7v2.model.v21.segment.MSH ) {
messageType = ( (ca.uhn.hl7v2.model.v21.segment.MSH) structure ).getMESSAGETYPE().encode();
} else if ( structure instanceof ca.uhn.hl7v2.model.v22.segment.MSH ) {
messageType = ( (ca.uhn.hl7v2.model.v22.segment.MSH) structure ).getMessageType().encode();
} else if ( structure instanceof ca.uhn.hl7v2.model.v23.segment.MSH ) {
messageType = ( (ca.uhn.hl7v2.model.v23.segment.MSH) structure ).getMessageType().encode();
} else if ( structure instanceof ca.uhn.hl7v2.model.v231.segment.MSH ) {
messageType =
( (ca.uhn.hl7v2.model.v231.segment.MSH) structure ).getMessageType().getMessageStructure().getValue();
} else if ( structure instanceof ca.uhn.hl7v2.model.v24.segment.MSH ) {
messageType =
( (ca.uhn.hl7v2.model.v24.segment.MSH) structure ).getMessageType().getMessageStructure().getValue();
} else if ( structure instanceof ca.uhn.hl7v2.model.v25.segment.MSH ) {
messageType =
( (ca.uhn.hl7v2.model.v25.segment.MSH) structure ).getMessageType().getMessageStructure().getValue();
} else if ( structure instanceof ca.uhn.hl7v2.model.v251.segment.MSH ) {
messageType =
( (ca.uhn.hl7v2.model.v251.segment.MSH) structure ).getMessageType().getMessageStructure().getValue();
} else if ( structure instanceof ca.uhn.hl7v2.model.v26.segment.MSH ) {
messageType =
( (ca.uhn.hl7v2.model.v26.segment.MSH) structure ).getMessageType().getMessageStructure().getValue();
} else {
logError( "This job entry does not support the HL7 dialect used. Found MSH class: "
+ structure.getClass().getName() );
}
if ( !Utils.isEmpty( messageTypeVariable ) ) {
parentJob.setVariable( messageTypeVariable, messageType );
}
if ( !Utils.isEmpty( versionVariable ) ) {
parentJob.setVariable( versionVariable, version );
}
}
// All went well..
//
result.setNrErrors( 0 );
result.setResult( true );
} catch ( Exception e ) {
log.logError( BaseMessages.getString( PKG, "HL7MLLPInput.Exception.UnexpectedError" ), e );
result.setNrErrors( 1 );
result.setResult( false );
}
return result;
}
public boolean evaluates() {
return true;
}
public boolean isUnconditional() {
return false;
}
/**
* @return the server
*/
public String getServer() {
return server;
}
/**
* @param server
* the server to set
*/
public void setServer( String server ) {
this.server = server;
}
/**
* @return the port
*/
public String getPort() {
return port;
}
/**
* @param port
* the port to set
*/
public void setPort( String port ) {
this.port = port;
}
/**
* @return the message variable name
*/
public String getMessageVariableName() {
return messageVariableName;
}
/**
* @param messageVariableName
* the variable name for the message to set
*/
public void setMessageVariableName( String messageVariableName ) {
this.messageVariableName = messageVariableName;
}
/**
* @return the message the variable name
*/
public String getMessageTypeVariableName() {
return messageTypeVariableName;
}
/**
* @param messageTypeVariableName
* the message type variable name to set
*/
public void setMessageTypeVariableName( String messageTypeVariableName ) {
this.messageTypeVariableName = messageTypeVariableName;
}
/**
* @return the versionVariableName
*/
public String getVersionVariableName() {
return versionVariableName;
}
/**
* @param versionVariableName
* the versionVariableName to set
*/
public void setVersionVariableName( String versionVariableName ) {
this.versionVariableName = versionVariableName;
}
}