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TOOP Connector NG

The TOOP Connector NG is a set of shared utility functions that you CAN include in your DC (Data Consumer) and/or DP (Data Provider) to perform common tasks that are required for a safe and interoperable data exchange. The TOOP Connector NG can be used both as a Java library AND via an REST API.
The TOOP Connector NG is a Java only solution. Other environments like .NET etc. are currently not supported.

It uses the shared components from:

Note: this is the successor project of the old toop-interface and toop-connector projects.

Modules

This project consists of the following sub modules:

  • tc-api - the shared data structures, building on top of the "toop-edm" project (see toop-commons-ng)
  • tc-mem-external - connection between TOOP Connector and an external AS4 gateway (mem = message exchange module)
  • tc-mem-phase4 - a built-in AS4 gateway for the TOOP Connector avoiding the use of an external AS4 gateway
  • tc-main - contains the business logic functionality as an embeddable JAR
  • tc-web-api - contains the REST API that invokes the functionality from "tc-main"
  • tc-webapp - a web application (WAR) that includes the "tc-web-api" project
  • tc-jetty - a self-contained application that combines the "tc-webapp" project with a Jetty instance - this serves as the basis for the Docker image but can also be run standalone

Maven coordinates

Use one of the following artefacts for inclusion, replacing x.y.z with the effective version number:

To integrate the TOOP Connector NG directly into your DC/DP without the HTTP bridge:

      <dependency>
        <groupId>eu.toop</groupId>
        <artifactId>tc-main</artifactId>
        <version>x.y.z</version>
      </dependency>

To use the full WAR file (unlikely in Maven):

      <dependency>
        <groupId>eu.toop</groupId>
        <artifactId>tc-webapp</artifactId>
        <version>x.y.z</version>
        <type>war</type>
      </dependency>

or download directly from Maven Central: https://repo1.maven.org/maven2/eu/toop/tc-webapp/

Configuration

The configuration file is called application.properties and is search by default in the classpath. Custom configuration files can be located like this:

  1. if the system property config.resource or the environment variable CONFIG_RESOURCE is present, and it points to an existing classpath resource, the first one matching is used - priority 200 or determined by the system property config.resource.priority or the environment variable CONFIG_RESOURCE_PRIORITY. Note: the file type is determined by the extension and defaults to "properties".
  2. if the system property config.file or the environment variable CONFIG_FILE is present, and it points to an existing file, it is used - priority 200 or determined by the system property config.file.priority or the environment variable CONFIG_FILE_PRIORITY. Note: the file type is determined by the extension and defaults to "properties".
  3. if the system property config.url or the environment variable CONFIG_URL is present, and it points to an existing URL, it is used - priority 200 or determined by the system property config.url.priority or the environment variable CONFIG_URL_PRIORITY. Note: the file type is determined by the extension and defaults to "properties".

The following configuration properties are supported - some of them have default values:

  • global.debug (boolean) - enable development debug functionality
  • global.production (boolean) - enable production mode (performance optimizations, less checks)
  • global.instancename (string) - this is only used as the log prefix if the tracker is used
  • toop.tracker.enabled (boolean) - enable or disable the remote tracker
  • toop.tracker.url (string) - the URL where the tracker is collecting data elements
  • toop.tracker.topic (string) - the TOOP tracker topic (left pane)
  • toop.dsd.service.baseurl (string) - the URL of the DSD
  • toop.r2d2.usedns (boolean) - use the SML system to dynamically discover partner systems?
  • toop.r2d2.sml.name (string) - internal name of the SML
  • toop.r2d2.sml.dnszone (string) - the DNS zone of the SML
  • toop.r2d2.sml.serviceurl (string) - the management service URL of the SML
  • toop.r2d2.sml.clientcert (boolean) - is a client certificate need when talking to this SML?
  • toop.r2d2.smp.url (string) - the absolute URL of the SMP to use, if toop.r2d2.usedns is set to false
  • toop.r2d2.static.endpointurl (string) (since 2.1.0) - the absolute URL of the AS4 endpoint URL. Caution: if this is used, dynamic discovery id disabled and all messages are send to the same AS4 gateway
  • toop.r2d2.static.certificate (string) (since 2.1.0) - the PEM encoded X509 certificate of the AS4 gateway. Caution: if this is used, dynamic discovery id disabled and all messages are send to the same AS4 gateway
  • toop.mem.implementation (string) - the ID of the AS4 implementation to use. Can be either external or phase4 - depending on this, different configuration properties must be configured (see below)
  • http.proxy.enabled (boolean) - is an HTTP proxy needed?
  • http.proxy.address (string) - the URL of the proxy server (including the scheme)
  • http.proxy.port (int) - the port to access the HTTP proxy server
  • http.proxy.non-proxy (string) - a list of hosts that should not be proxied. Use the pipe character as the separator for multiple entries.
  • http.tls.trustall (boolean) - use this to disable the hostname and trusted certificate check for SSL/TLS connections
  • http.connection-timeout (int) - the HTTP connection timeout in milliseconds
  • http.read-timeout (int) - the HTTP read/socket timeout in milliseconds
  • toop.webapp.data.path (string) (since 2.0.0-rc4) - the absolute path, where data should be stored.
  • toop.mem.incoming.url (string) - the URL inside your DC/DP where incoming messages (of type TCIncomingMessage) should be send to (for receiving incoming message). Note: this property is only needed, if HTTP interface between DC/DP and TC is used.

Additionally the configuration items of the SMP client should be configured. The complete description can be found at https://github.com/phax/peppol-commons#configuration - the main items are:

  • truststore.type (string): the type of key store to be used. Possible values are JKS and PKCS12. Defaults to JKS (which was the implicit default prior to v6).
  • truststore.path (string): the location of the trust store (of the specified type) to be used.
  • truststore.password (string): the password to access the trust store.

Note: this TOOP Connector uses a different configuration engine than the old version.

Note: see https://github.com/TOOP4EU/toop-connector-ng/blob/master/tc-webapp/src/main/resources/application.properties for the default configuration file

Properties for MEM implementation external

  • toop.mem.as4.endpoint (string) - the URL where the external AS4 gateway (Holodeck) listens to messages to be send out
  • toop.mem.as4.gw.partyid (string) - the AS4 gateway party ID
  • toop.mem.as4.tc.partyid (string) - the AS4 TOOP Connector party ID
  • toop.mem.as4.to-party-id-type (string) (since 2.0.2) - the AS4 To/PartyId/@type value. This is optional and defaults to null. This is for Domibus compatibility only.
  • toop.mem.as4.notificationWaitTimeout (long) - the timeout for a notification in milliseconds
  • toop.mem.outgoing.dump.enabled (boolean) (since v2.0.0-rc3) - enable or disable the dumping of outgoing messages. By default this is disabled.
  • toop.mem.outgoing.dump.path (string) (since v2.0.0-rc3) - the file system directory in which the dumps of the outgoing messages are stored. This should be an absolute path. The filenames in the directory start with toop-mem-external-outgoing-.
  • toop.mem.incoming.dump.enabled (boolean) (since v2.0.0-rc3) - enable or disable the dumping of incoming messages. By default this is disabled.
  • toop.mem.incoming.dump.path (string) (since v2.0.0-rc3) - the file system directory in which the dumps of the incoming messages are stored. This should be an absolute path. The filenames in the directory start with toop-mem-external-incoming-.

Note: the receiving endpoint for MEM implementation external is /from-as4 - this must be part of your SMP endpoint URL.

Properties for MEM implementation phase4

Note: since 2.0.2 they must reside in the file "phase4.properties".

  • phase4.datapath (string) - the absolute path to a local directory to store data
  • phase4.debug.http (boolean) - enable or disable HTTP debugging for AS4 transmissions. The default value is false.
  • phase4.debug.incoming (boolean) - enable or disable debug logging for incoming AS4 transmissions. The default value is false.
  • phase4.dump.incoming.path (string) (since v2.0.0-rc3) - an optional absolute directory path where the incoming AS4 messages should be dumped to. Disabled by default.
  • phase4.dump.outgoing.path (string) (since v2.0.0-rc3) - an optional absolute directory path where the outgoing AS4 messages should be dumped to. Disabled by default.
  • phase4.send.fromparty.id (string) (since v2.0.0-rc3) - the from party ID to be used for outgoing messages. Previous versions need to use toop.mem.as4.tc.partyid - starting from RC3 this property is still used as a fallback)
  • phase4.send.fromparty.id.type (string) (since 2.0.2) - the AS4 From/PartyId/@type value. This is optional and defaults to null. This is for Domibus compatibility only.
  • phase4.send.toparty.id.type (string) (since 2.0.2) - the AS4 To/PartyId/@type value. This is optional and defaults to null. This is for Domibus compatibility only.
  • phase4.send.response.folder (string) - an optional folder, where sent responses should be stored. If this property is not provided, they are not stored
  • phase4.keystore.type (string) - the type of the keystore (either "JKS" or "PKCS12" - case insensitive) - defaults to JKS.
  • phase4.keystore.path (string) - the path to the keystore (can be classpath relative or an absolute file)
  • phase4.keystore.password (string) - the password to access the keystore
  • phase4.keystore.key-alias (string) - the alias of the key in the keystore (may be case sensitive)
  • phase4.keystore.key-password (string) - the password to access the key in the keystore
  • phase4.truststore.type (string) - the type of the truststore (either "JKS" or "PKCS12" - case insensitive) - defaults to JKS.
  • phase4.truststore.path (string) - the path to the truststore (can be classpath relative or an absolute file)
  • phase4.truststore.password (string) - the password to access the truststore

Note: the receiving endpoint for MEM implementation phase4 is /phase4 - this must be part of your SMP endpoint URL.

Running

The tc-webapp module is a web application that can be deployed in arbitrary application servers supporting the Servlet specification 3.1 and onwards.

Note there were classloader issues running TOOP Connector NG in Tomcat (prior to - we suggest to use Jetty until we have figured out how to resolve it.

tc-jetty

Standalone version of TOOP Connector NG

Usage:

Usage: tc-jetty [-hV] [-p Port] [-s Stop Port] command
Standalone TOOP Connector NG
      command                What to do. Options are start, stop
  -h, --help                 Show this help message and exit.
  -p, --port Port            Port to run the TOOP Connector on (default: 8080)
  -s, --stopPort Stop Port   Internal port to watch for the shutdown command
                               (default: 8079)
  -V, --version              Print version information and exit.

Start via start and shut it down with stop.

How to run it: invoke the following command, replacing x.y.z with the effective version number

java -jar tc-jetty-x.y.z-full.jar start

to add a custom configuration file add the property "config.file" like this:

java -Dconfig.file=/path/to/your/file.properties -jar tc-jetty-x.y.z-full.jar start

Binary versions of the standalone TOOP Connector NG are available at https://repo1.maven.org/maven2/eu/toop/tc-jetty/

Design considerations

Compared to the old design, certain architectural decisions changed which lead to a new architecture of the TOOP Connector. Previously the application was designed to be a separate web application that was deployed between the DC/DP and the AS4 Gateway. The TOOP Connector NG is both a library and a standalone solution that helps you do common stuff on the DC and the DP side.

Major changes compared to the old TOOP Connector:

  • The semantic mapping service invocation was removed. The old solution was not satisfying.
  • The "multiple DPs" option was removed. This responsibility was moved to the DC.
  • The TOOP Directory was replaced by the DSD (Data Service Directory)
  • No more usage of ASIC
  • The content previously contained in "toop-commons" is now included in this project. The "toop-interface" project is no longer needed."
  • The TOOP Connector is now stateless

What is now contained in the TOOP Connector NG:

  • Support for performing dynamic discovery lookups (as before)
  • Support for Schematron validation of the EDM Requests and Responses (as before)
  • Support for querying the DSD (new - was previously the TOOP Directory)
  • Support for communicating with the AS4 gateway (as before)

Building

Requires at least

  • Java 1.8 or later
  • Apache Maven for building

Do a simple mvn clean install on the command line.

News and Noteworthy

2021-01-19: release of v2.1.1

  • The project is now dual licensed under Apache License, Version 2.0 and EUPL 1.2
  • Improved the resolution of U-NAPTR records based on upcoming CEF changes in the DNS

2020-11-09: release of 2.1.0-1

  • Corrected the version IDs of the validation artefacts from 2.0.0 to 2.1.0

2020-11-06: release of 2.1.0

  • Update the EDM to version 2.1
  • Bumped phase4 to 0.12.x
  • Added new configuration items toop.mem.as4.to-party-id-type, phase4.send.fromparty.id.type and phase4.send.toparty.id.type
  • phase4 properties should now reside in the file phase4.properties
  • Added new REST API /dsd/dp/{datasetType}/by-dp-type/{dpType} to query the DSD for all entities having an SMP BusinessCard additional identifier of scheme DataProviderType and the provided {dpType} as the identifier value.
  • Not using any custom DNS servers for NAPTR record lookup

2020-09-18: release of 2.0.1

  • Bumped phase4 to 0.11.1

2020-08-30: release of 2.0.0

  • Renamed class MPTrigger to DC_DP_TriggerViaHttp
  • Extended APIs for increased customizability
  • Moved the class TCAPIConfig to tc-main module
  • Added new class TCAPIHelper for easier integration of the TC into Java applications
  • Using Java 8 date time types for JAXB generated classes

2020-07-13: release of 2.0.0-rc3

  • Updated phase4 version which finally fixes the XLink JAXB error, since it no longer contains its own version of xlink.xsd
  • Added new configuration options to dump incoming and outgoing AS4 messages more easily
  • Fixed a bug, that the "Content-ID" field of the payload of the incoming message was not passed to the TCIncomingMessage
  • The "external" MEM implementation now consistently uses the ServiceType message property
  • Interoperability between phase4 and Holodeck has been tested

2020-06-19: release of 2.0.0-rc2

  • Fixed a regression in /user/submit/... API that accidentally delivered HTTP 400 in case of success

2020-06-18: release of 2.0.0-rc1

  • Integrated the standalone version tc-jetty into this repository
  • Fixed the XSD validation for error responses in the context of Schematron validation
  • Made some message exchange components implement equals/hashCode
  • This version should again work in Tomcat
  • Changed class name IDDErrorHandler to ITCErrorHandler
  • Changed the API calls to return HTTP 400 in case of error
  • The API /dsd/dp/{datasetType} (without country code) was disabled

2020-06-01: release of 2.0.0-beta5

  • Improved the validation API to create no more false positives
  • Improved response of /user/submit/... if the SMP lookup failed
  • The metadata of incoming messages are preserved and forwarded to DC/DP
  • Note the changed Schematron rules in "toop-commons-ng" 2.0.0-beta5

2020-05-26: release of 2.0.0-beta4

2020-05-21: release of 2.0.0-beta3

  • First proof of concept release that cannot yet send documents

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