Initial commit

.gitignore

@@ -0,0 +1,39 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

LICENSE.txt

@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.

README.md

@@ -0,0 +1,4 @@
+# Datenextraktion aus den Onkostar DNPM-Formularen
+
+Ziel dieser Library ist die Bereitstellung von Methoden zum Laden von Daten der DNPM-Formulare aus der Onkostar-Datenbank
+und dem Mapping in das DNPM-Datenmodell 2.1.

build.gradle.kts

@@ -0,0 +1,60 @@
+plugins {
+    id("java")
+    id("java-library")
+}
+
+group = "dev.pcvolkmer.onco"
+version = "0.1.0-SNAPSHOT"
+
+var versions = mapOf(
+    "mtb-dto" to "0.1.0-SNAPSHOT",
+    "junit" to "5.13.1",
+    "assertj" to "3.27.3",
+    "mockito" to "5.18.0"
+)
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(11)
+    }
+}
+
+configurations {
+    all {
+        resolutionStrategy {
+            cacheChangingModulesFor(5, "minutes")
+        }
+    }
+}
+
+repositories {
+    maven {
+        url = uri("https://git.dnpm.dev/api/packages/public-snapshots/maven")
+    }
+    maven {
+        url = uri("https://git.dnpm.dev/api/packages/public/maven")
+    }
+    mavenCentral()
+}
+
+dependencies {
+    api("dev.pcvolkmer.mv64e:mtb-dto:${versions["mtb-dto"]}") { isChanging = true }
+    implementation("org.springframework:spring-jdbc") {
+        version {
+            strictly("[4.3.8.RELEASE, )")
+            // Current Onkostar 2.14.0 dependendcy
+            prefer("4.3.8.RELEASE")
+        }
+    }
+
+    testImplementation(platform("org.junit:junit-bom:${versions["junit"]}"))
+    testImplementation("org.junit.jupiter:junit-jupiter")
+    testImplementation("org.assertj:assertj-core:${versions["assertj"]}")
+    testImplementation("org.mockito:mockito-core:${versions["mockito"]}")
+    testImplementation("org.mockito:mockito-junit-jupiter:${versions["mockito"]}")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+}
+
+tasks.test {
+    useJUnitPlatform()
+}

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Thu Jun 19 10:34:56 CEST 2025
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle.kts

@@ -0,0 +1 @@
+rootProject.name = "mv64e-onkostar-data"

src/main/java/dev/pcvolkmer/onco/datamapper/DataMapper.java

@@ -0,0 +1,19 @@
+package dev.pcvolkmer.onco.datamapper;
+
+/**
+ * General interface for all data mappers
+ *
+ * @since 0.1
+ * @author Paul-Christian Volkmer
+ * @param <T> The destination type
+ */
+public interface DataMapper<T> {
+
+    /**
+     * Loads a data set from database and maps it into destination data type
+     * @param id The database id of the root procedure data set
+     * @return The data set to be loaded
+     */
+    T getById(int id);
+
+}

src/main/java/dev/pcvolkmer/onco/datamapper/KpaDiagnosisDataMapper.java

@@ -0,0 +1,63 @@
+package dev.pcvolkmer.onco.datamapper;
+
+import dev.pcvolkmer.mv64e.mtb.Coding;
+import dev.pcvolkmer.mv64e.mtb.Mtb;
+import dev.pcvolkmer.mv64e.mtb.MtbDiagnosis;
+import dev.pcvolkmer.onco.datamapper.datacatalogues.Kpa;
+import dev.pcvolkmer.onco.datamapper.exceptions.DataAccessException;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+import javax.sql.DataSource;
+import java.sql.SQLException;
+
+/**
+ * Mapper class to load and map diagnosis data from database table 'dk_dnpm_kpa'
+ *
+ * @author Paul-Christian Volkmer
+ * @since 0.1
+ */
+public class KpaDiagnosisDataMapper implements DataMapper<MtbDiagnosis> {
+
+    private final JdbcTemplate jdbcTemplate;
+
+    KpaDiagnosisDataMapper(final JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+    }
+
+    /**
+     * Create instance of the mapper class
+     *
+     * @param dataSource The datasource to be used
+     * @return The initialized mapper
+     */
+    public static KpaDiagnosisDataMapper create(final DataSource dataSource) {
+        return new KpaDiagnosisDataMapper(new JdbcTemplate(dataSource));
+    }
+
+    /**
+     * Loads and maps a diagnosis using the kpa procedures database id
+     *
+     * @param id The database id of the procedure data set
+     * @return The loaded MtbDiagnosis file
+     */
+    @Override
+    public MtbDiagnosis getById(int id) {
+        var kpa = Kpa.create(this.jdbcTemplate);
+        var data = kpa.getById(id);
+
+        var builder =  MtbDiagnosis.builder();
+        try {
+            builder
+                    .id(data.getString("id"))
+                    .code(
+                            Coding.builder()
+                                    .code(data.getString("icd10"))
+                                    .build()
+                    );
+        } catch (SQLException e) {
+            throw new DataAccessException(e.getMessage());
+        }
+        return builder.build();
+    }
+
+}

src/main/java/dev/pcvolkmer/onco/datamapper/MtbDataMapper.java

@@ -0,0 +1,56 @@
+package dev.pcvolkmer.onco.datamapper;
+
+import dev.pcvolkmer.mv64e.mtb.Mtb;
+import dev.pcvolkmer.onco.datamapper.datacatalogues.Kpa;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+import javax.sql.DataSource;
+
+/**
+ * Mapper class to load and map Mtb files from database
+ *
+ * @author Paul-Christian Volkmer
+ * @since 0.1
+ */
+public class MtbDataMapper implements DataMapper<Mtb> {
+
+    private final JdbcTemplate jdbcTemplate;
+
+    MtbDataMapper(final JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+    }
+
+    /**
+     * Create instance of the mapper class
+     *
+     * @param dataSource The datasource to be used
+     * @return The initialized mapper
+     */
+    public static MtbDataMapper create(final DataSource dataSource) {
+        return new MtbDataMapper(new JdbcTemplate(dataSource));
+    }
+
+    /**
+     * Loads and maps a Mtb file using the root procedures database id
+     *
+     * @param id The database id of the root procedure data set
+     * @return The loaded Mtb file
+     */
+    @Override
+    public Mtb getById(int id) {
+        return Mtb.builder().build();
+    }
+
+    /**
+     * Loads and maps a Mtb file using the case id
+     *
+     * @param caseId The case id
+     * @return The loaded Mtb file
+     */
+    public Mtb getByCaseId(String caseId) {
+        var kpa = Kpa.create(this.jdbcTemplate);
+        return this.getById(
+                kpa.getProcedureIdByCaseId(caseId)
+        );
+    }
+}

src/main/java/dev/pcvolkmer/onco/datamapper/datacatalogues/Kpa.java

@@ -0,0 +1,86 @@
+package dev.pcvolkmer.onco.datamapper.datacatalogues;
+
+import dev.pcvolkmer.onco.datamapper.exceptions.DataAccessException;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+import java.sql.ResultSet;
+
+/**
+ * Load raw result sets from database table 'dk_dnpm_kpa'
+ *
+ * @author Paul-Christian Volkmer
+ * @since 0.1
+ */
+public class Kpa {
+
+    private final JdbcTemplate jdbcTemplate;
+
+    private Kpa(JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+    }
+
+    public static Kpa create(JdbcTemplate jdbcTemplate) {
+        return new Kpa(jdbcTemplate);
+    }
+
+    /**
+     * Get procedure result set by procedure id
+     * @param id The procedure id
+     * @return The procedure id
+     */
+    public ResultSet getById(int id) {
+        var result = this.jdbcTemplate.query(
+                "SELECT * FROM dk_dnpm_kpa id = ?",
+                (resultSet, i) -> resultSet,
+                id);
+
+        if (result.isEmpty()) {
+            throw new DataAccessException("No record found for id: " + id);
+        } else if (result.size() > 1) {
+            throw new DataAccessException("Multiple records found for id: " + id);
+        }
+
+        return result.get(0);
+    }
+
+    /**
+     * Get procedure database id by case id
+     * @param caseId The case id
+     * @return The procedure id
+     */
+    public int getProcedureIdByCaseId(String caseId) {
+        var result = this.jdbcTemplate.query(
+                "SELECT id FROM dk_dnpm_kpa WHERE fallnummermv = ?",
+                (resultSet, i) -> resultSet.getInt(1),
+                caseId);
+
+        if (result.isEmpty()) {
+            throw new DataAccessException("No record found for case: " + caseId);
+        } else if (result.size() > 1) {
+            throw new DataAccessException("Multiple records found for case: " + caseId);
+        }
+
+        return result.get(0);
+    }
+
+    /**
+     * Get patient database id by case id
+     * @param caseId The case id
+     * @return The patients database id
+     */
+    public int getPatientIdByCaseId(String caseId) {
+        var result = this.jdbcTemplate.query(
+                "SELECT patient_id FROM dk_dnpm_kpa JOIN prozedur ON (prozedur.id = dk_dnpm_kpa.id) WHERE fallnummermv = ?",
+                (resultSet, i) -> resultSet.getInt(1),
+                caseId);
+
+        if (result.isEmpty()) {
+            throw new DataAccessException("No record found for case: " + caseId);
+        } else if (result.size() > 1) {
+            throw new DataAccessException("Multiple records found for case: " + caseId);
+        }
+
+        return result.get(0);
+    }
+
+}

src/main/java/dev/pcvolkmer/onco/datamapper/exceptions/DataAccessException.java

@@ -0,0 +1,13 @@
+package dev.pcvolkmer.onco.datamapper.exceptions;
+
+/**
+ * Exception to be thrown if no or unexpected multiple data sets where found
+ *
+ * @author Paul-Christian Volkmer
+ * @since 0.1
+ */
+public class DataAccessException extends RuntimeException {
+    public DataAccessException(String message) {
+        super(message);
+    }
+}

src/test/java/dev/pcvolkmer/onco/datamapper/KpaDiagnosisDataMapperTest.java

@@ -0,0 +1,63 @@
+package dev.pcvolkmer.onco.datamapper;
+
+import dev.pcvolkmer.mv64e.mtb.MtbDiagnosis;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.core.RowMapper;
+
+import javax.sql.DataSource;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.doAnswer;
+
+@ExtendWith(MockitoExtension.class)
+class KpaDiagnosisDataMapperTest {
+
+    JdbcTemplate jdbcTemplate;
+
+    KpaDiagnosisDataMapper dataMapper;
+
+    @BeforeEach
+    void setUp(@Mock JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+        this.dataMapper = new KpaDiagnosisDataMapper(jdbcTemplate);
+    }
+
+    @Test
+    void shouldCreateDataMapper(@Mock DataSource dataSource) {
+        assertThat(MtbDataMapper.create(dataSource)).isNotNull();
+    }
+
+    @Test
+    void shouldUseKpaProcedureId(@Mock ResultSet resultSet) throws SQLException {
+        doAnswer(invocationOnMock -> {
+            var columnName = invocationOnMock.getArgument(0, String.class);
+            switch (columnName) {
+                case "id":
+                    return "1";
+                case "icd10":
+                    return "F79.9";
+                default:
+                    return null;
+            }
+        }).when(resultSet).getString(anyString());
+
+        doAnswer(invocationOnMock -> List.of(resultSet))
+                .when(jdbcTemplate)
+                .query(anyString(), any(RowMapper.class), anyInt());
+
+        var actual = this.dataMapper.getById(1);
+        assertThat(actual).isInstanceOf(MtbDiagnosis.class);
+        assertThat(actual.getId()).isEqualTo("1");
+        assertThat(actual.getCode().getCode()).isEqualTo("F79.9");
+    }
+
+}

src/test/java/dev/pcvolkmer/onco/datamapper/MtbDataMapperTest.java

@@ -0,0 +1,71 @@
+package dev.pcvolkmer.onco.datamapper;
+
+import dev.pcvolkmer.mv64e.mtb.Mtb;
+import dev.pcvolkmer.onco.datamapper.exceptions.DataAccessException;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.core.RowMapper;
+
+import javax.sql.DataSource;
+
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.doAnswer;
+
+@ExtendWith(MockitoExtension.class)
+class MtbDataMapperTest {
+
+    JdbcTemplate jdbcTemplate;
+
+    MtbDataMapper mtbDataMapper;
+
+    @BeforeEach
+    void setUp(@Mock JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+        this.mtbDataMapper = new MtbDataMapper(jdbcTemplate);
+    }
+
+    @Test
+    void shouldCreateDataMapper(@Mock DataSource dataSource) {
+        assertThat(MtbDataMapper.create(dataSource)).isNotNull();
+    }
+
+    @Test
+    void shouldUseKpaProcedureId() {
+        doAnswer(invocationOnMock -> List.of(1))
+                .when(jdbcTemplate)
+                .query(anyString(), any(RowMapper.class), anyString());
+
+        var actual = this.mtbDataMapper.getByCaseId("16000123");
+        assertThat(actual).isInstanceOf(Mtb.class);
+    }
+
+    @Test
+    void shouldThrowExceptionIfNoKpaProcedureFound() {
+        var ex = assertThrows(DataAccessException.class, () -> {
+            this.mtbDataMapper.getByCaseId("16000123");
+        });
+        assertThat(ex).hasMessage("No record found for case: 16000123");
+    }
+
+    @Test
+    void shouldThrowExceptionIfMultipleKpaProceduresFound() {
+        doAnswer(invocationOnMock -> List.of(1, 2))
+                .when(jdbcTemplate)
+                .query(anyString(), any(RowMapper.class), anyString());
+
+        var ex = assertThrows(DataAccessException.class, () -> {
+            this.mtbDataMapper.getByCaseId("16000123");
+        });
+        assertThat(ex).hasMessage("Multiple records found for case: 16000123");
+    }
+
+}