Initial commit

The seed of 20 was reached on the very first throw.
I considered doing 3d20, but then the roll changes from a uniform distribution into a normal distribution, which is less random.

.gitignore

@@ -0,0 +1,42 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.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

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/gradle.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleHome" value="/usr/share/java/gradle" />
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

build.gradle

@@ -0,0 +1,23 @@
+plugins {
+    id 'java'
+    id 'io.freefair.lombok' version '8.10'
+}
+
+group = 'be.seeseemelk'
+version = '1.0-SNAPSHOT'
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation 'io.github.ollama4j:ollama4j:1.0.82'
+
+    testImplementation platform('org.junit:junit-bom:5.10.0')
+    testImplementation 'org.junit.jupiter:junit-jupiter'
+    testImplementation 'org.hamcrest:hamcrest:3.0'
+}
+
+test {
+    useJUnitPlatform()
+}

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Tue Aug 20 13:11:27 CEST 2024
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-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

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+@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

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+rootProject.name = 'libllamascript'
+

src/main/java/be/seeseemelk/llamascript/LLamaScriptException.java

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+package be.seeseemelk.llamascript;
+
+import lombok.experimental.StandardException;
+
+@StandardException
+public class LLamaScriptException extends RuntimeException {
+}

src/main/java/be/seeseemelk/llamascript/LLamaScriptFactory.java

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+package be.seeseemelk.llamascript;
+
+import io.github.ollama4j.OllamaAPI;
+import lombok.Setter;
+
+@Setter
+public class LLamaScriptFactory {
+    private String host = "http://localhost:11434";
+    private String model = "llama3.1:8b";
+
+    public LlamaScript build() {
+        return new LlamaScript(new OllamaAPI(host), model);
+    }
+}

src/main/java/be/seeseemelk/llamascript/LlamaScript.java

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+package be.seeseemelk.llamascript;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import io.github.ollama4j.OllamaAPI;
+import io.github.ollama4j.exceptions.OllamaBaseException;
+import io.github.ollama4j.models.chat.OllamaChatMessage;
+import io.github.ollama4j.models.chat.OllamaChatMessageRole;
+import io.github.ollama4j.models.chat.OllamaChatRequest;
+import io.github.ollama4j.utils.OptionsBuilder;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+
+@Slf4j
+@RequiredArgsConstructor
+public class LlamaScript {
+    private final OllamaAPI api;
+    private final String model;
+    private final ObjectMapper mapper = new ObjectMapper();
+
+    public <T> T eval(String prompt, Class<T> returnType, Object... arguments) {
+        var argumentMap = new HashMap<Integer, Object>();
+        for (Object argument : arguments) {
+            argumentMap.put(argumentMap.size(), argument);
+        }
+
+        if (returnType.equals(Integer.class)) {
+            //noinspection unchecked
+            return (T) evalInt(prompt, argumentMap);
+        } else if (returnType.equals(String.class)) {
+            //noinspection unchecked
+            return (T) evalString(prompt, argumentMap);
+        } else {
+            throw new LLamaScriptException("Unsupported return type");
+        }
+    }
+
+    private String evalString(String prompt, HashMap<Integer, Object> argumentMap) {
+        var result = eval(prompt, primitiveOutputType("a string"), argumentMap);
+        if (result instanceof String string)
+            return string;
+        else if (result != null)
+            return result.toString();
+        else
+            throw new LLamaScriptException("No response");
+    }
+
+    private Integer evalInt(String prompt, HashMap<Integer, Object> argumentMap) {
+        var result = eval(prompt, primitiveOutputType("an integer number"), argumentMap);
+        if (result instanceof Integer integer)
+            return integer;
+        else if (result instanceof String string) {
+            try {
+                return Integer.parseInt(string);
+            } catch (NumberFormatException e) {
+                throw new LLamaScriptException("Invalid integer", e);
+            }
+        }
+        else
+            throw new LLamaScriptException("Invalid integer type");
+    }
+
+    private Object eval(String prompt, String outputType, HashMap<Integer, Object> argumentMap) {
+        try {
+            var optionsBuilder = new OptionsBuilder();
+            optionsBuilder.setSeed(20); // Chosen with 1d20. Yes, a nat 20! Let's go baby!
+            optionsBuilder.setTemperature(0f);
+            var options = optionsBuilder.build();
+            var fullPrompt = new StringBuilder("""
+                You will receive a prompt, and will have to consider the question in the prompt with regards to the inputs you will receive.
+                Your output must be a JSON object containing the single value 'result'.
+                %s
+                
+                The prompt: %s
+                
+                Arguments:
+                """.formatted(outputType, prompt));
+            for (var entry : argumentMap.entrySet()) {
+                fullPrompt.append(" - ").append(entry.getKey()).append(": ").append(entry.getValue()).append("\n");
+            }
+            System.out.printf("Prompt is: %s\n", fullPrompt);
+
+            var messages = new ArrayList<OllamaChatMessage>();
+            messages.add(new OllamaChatMessage(OllamaChatMessageRole.USER, fullPrompt.toString()));
+            var chatRequest = new OllamaChatRequest(model, messages);
+            chatRequest.setReturnFormatJson(true);
+            chatRequest.setOptions(options.getOptionsMap());
+
+            var result = api.chat(chatRequest);
+            System.out.printf("Result is: %s\n", result.getResponse());
+            return mapper.readValue(result.getResponse(), Result.class).result;
+        } catch (OllamaBaseException | InterruptedException | IOException e) {
+            throw new LLamaScriptException(e);
+        }
+    }
+
+    private static class Result {
+        public Object result;
+    }
+
+    private static String primitiveOutputType(String description) {
+        return "This result must contain %s.".formatted(description);
+    }
+}

src/test/java/be/seeseemelk/llamascript/AbstractLlamaTest.java

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+package be.seeseemelk.llamascript;
+
+import org.junit.jupiter.api.BeforeEach;
+
+public class AbstractLlamaTest {
+    protected LlamaScript llama;
+
+    @BeforeEach
+    void setUp() {
+        llama = new LLamaScriptFactory().build();
+    }
+}

src/test/java/be/seeseemelk/llamascript/IntegerTests.java

@@ -0,0 +1,41 @@
+package be.seeseemelk.llamascript;
+
+import org.junit.jupiter.api.Test;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
+
+public class IntegerTests extends AbstractLlamaTest {
+    @Test
+    void canIncrementNumber() {
+        int value = llama.eval("Increment the number", Integer.class, 4);
+        assertThat(value, equalTo(5));
+    }
+
+    @Test
+    void canMultiply() {
+        int value = llama.eval("Multiply the numbers", Integer.class, 2, 3);
+        assertThat(value, equalTo(2*3));
+    }
+
+    @Test
+    void canMax() {
+        int value = llama.eval("Select the largest number", Integer.class, -2, 8);
+        assertThat(value, equalTo(8));
+    }
+
+    @Test
+    void canDoWeirdStuff() {
+        int value = llama.eval("Select the number with the most '5's in it.", Integer.class, 12, 5, 1023978, 158525);
+        assertThat(value, equalTo(158525));
+    }
+
+    @Test
+    void givePositivity() {
+        int value = llama.eval("If the string is something positive, return 1. Else, return 0.", Integer.class, "I like rainbows");
+        assertThat(value, equalTo(1));
+
+        value = llama.eval("If the string is something positive, return 1. Else, return 0.", Integer.class, "Death to all");
+        assertThat(value, equalTo(0));
+    }
+}

src/test/java/be/seeseemelk/llamascript/StringTests.java

@@ -0,0 +1,44 @@
+package be.seeseemelk.llamascript;
+
+import org.junit.jupiter.api.Test;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
+
+public class StringTests extends AbstractLlamaTest {
+    @Test
+    void canUppercase() {
+        String value = llama.eval("Return the string in uppercase", String.class, "Cat");
+        assertThat(value, equalTo("CAT"));
+    }
+
+    @Test
+    void canLowercase() {
+        String value = llama.eval("Return the string in lowercase", String.class, "Cat");
+        assertThat(value, equalTo("cat"));
+    }
+
+    @Test
+    void canInvert() {
+        String value = llama.eval("Return the string backwards", String.class, "Cat");
+        assertThat(value, equalTo("taC"));
+    }
+
+    @Test
+    void canSelectLongest() {
+        String value = llama.eval("Return the longest string", String.class, "Cat", "Dog", "Horse");
+        assertThat(value, equalTo("Horse"));
+    }
+
+    @Test
+    void canDoWeirdStuff() {
+        String value = llama.eval("Return the string that does not fit", String.class, "Cat", "Dog", "Horse", "Bicycle");
+        assertThat(value, equalTo("Bicycle"));
+    }
+
+    @Test
+    void canDoReallyWeirdStuff() {
+        String value = llama.eval("Sort the letters alphabetically", String.class, "horse");
+        assertThat(value, equalTo("ehors"));
+    }
+}