对于我想扩展 Elasticsearch 的项目，因此需要使用包Symja。在 Symja 的 Github 中，提供了使用 Maven 的手册。
由于 Elasticsearch 存储库是使用 Gradle 构建的，因此我还需要使用 Gradle 而不是 Maven。测试建议的示例 Symja project，以下build.gradle（我基本上是通过使用gradle init和调整生成的）完美地导入了库：
apply plugin: 'java'
apply plugin: 'maven-publish'
repositories {
mavenLocal()
maven {
url = uri('https://oss.sonatype.org/content/repositories/snapshots')
}
maven {
url = uri('https://repo.maven.apache.org/maven2/')
}
}
dependencies {
implementation 'org.matheclipse:matheclipse-core:1.0.0-SNAPSHOT'
}
publishing {
publications {
maven(MavenPublication) {
from(components.java)
}
}
}
现在，我想将 Symja 添加到我的 Elasticsearch fork 到server模块中。
但是，当我尝试构建它时，导入
import org.matheclipse.parser.client.SyntaxError;
import org.matheclipse.parser.client.math.MathException;
未检测到 Symja 示例：java: package org.matheclipse.parser.client does not exist. 可能出了什么问题？
我更新build.gradle的server模块如下所示：
...
apply plugin: 'java'
apply plugin: 'maven-publish'
publishing {
publications {
...
maven(MavenPublication) {
from(components.java)
}
}
}
repositories {
mavenLocal()
maven {
url = uri('https://oss.sonatype.org/content/repositories/snapshots')
}
maven {
url = uri('https://repo.maven.apache.org/maven2/')
}
}
...
dependencies {
...
// Symja
implementation "org.matheclipse:matheclipse-core:1.0.0-SNAPSHOT"
...
}
...
编辑：
在遵循@axelclk 的添加建议之后implementation "org.matheclipse:matheclipse-frontend:1.0.0-SNAPSHOT"，我的 IDE 现在检测到了这些包。虽然，如果我构建build.gradle（同时包含 Symja 示例中的方法org.elasticsearch.index.query.BoolQueryBuilder.java），会出现以下错误：
C:\{path here...}\elasticsearch\server\src\main\java\org\elasticsearch\index\query\BoolQueryBuilder.java:454: error: cannot access GcdRingElem
System.out.println("Out[2]: " + result.toString());
^
class file for edu.jas.structure.GcdRingElem not found
C:\{path here...}\elasticsearch\server\src\main\java\org\elasticsearch\index\query\BoolQueryBuilder.java:459: error: cannot access FieldElement
System.out.println("Out[3]: " + result.toString());
^
class file for org.hipparchus.FieldElement not found
似乎不知何故，该toString方法无法正常工作。此外，如果我使用 运行 Elasticsearch fork gradlew run -Dtests.es.xpack.security.enabled=false -Dtests.heap.size=1G，构建将失败并显示以下输出：
> Configure project :modules:reindex
Disabling reindex-from-old tests because we can't get the pid file on windows
> Configure project :plugins:repository-hdfs
hdfsFixture unsupported, please set HADOOP_HOME and put HADOOP_HOME\bin in PATH
> Configure project :x-pack:plugin:searchable-snapshots:qa:hdfs
hdfsFixture unsupported, please set HADOOP_HOME and put HADOOP_HOME\bin in PATH
=======================================
Elasticsearch Build Hamster says Hello!
Gradle Version : 6.8
OS Info : Windows 10 10.0 (amd64)
JDK Version : 15 (Oracle)
JAVA_HOME : C:\Program Files\Java\jdk-15.0.1
Random Testing Seed : C5A79F8CABA0D6FA
In FIPS 140 mode : false
=======================================
> Task :server:compileJava
C:\{path here ...}\elasticsearch\server\src\main\java\org\elasticsearch\index\query\BoolQueryBuilder.java:454: error: cannot access GcdRingElem
System.out.println("Out[2]: " + result.toString());
^
class file for edu.jas.structure.GcdRingElem not found
C:\{path here ...}\elasticsearch\server\src\main\java\org\elasticsearch\index\query\BoolQueryBuilder.java:459: error: cannot access FieldElement
System.out.println("Out[3]: " + result.toString());
^
class file for org.hipparchus.FieldElement not found
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
2 errors
> Task :server:compileJava FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':server:compileJava'.
> Compilation failed; see the compiler error output for details.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 58s
228 actionable tasks: 8 executed, 220 up-to-date
编辑2：我按照@axelclk 的建议添加implementation "org.matheclipse:matheclipse-external:1.0.0-SNAPSHOT"和替换mavenLocal()，mavenCentral()这不会导致任何不同的结果。
编辑 3：我再次根据@axelclk 的建议添加了 - 由 和 的文件pom.xml描述的实现：matheclipse-externalmatheclipse-core
...
// Symja
implementation "org.matheclipse:matheclipse-external:1.0.0-SNAPSHOT"
//implementation "org.apache.logging.log4j:log4j-core:2.13.2"
//implementation "org.apache.logging.log4j:log4j-api:2.13.2"
testImplementation "org.slf4j:slf4j-simple:1.7.25"
implementation "org.slf4j:log4j-over-slf4j:1.7.25"
//implementation "com.google.guava:failureaccess:1.0.1"
//implementation "com.google.guava:guava:30.1.1-jre"
implementation "com.fasterxml.jackson.core:jackson-databind:2.11.0"
implementation "com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.11.0"
implementation "io.pebbletemplates:pebble:3.1.5"
implementation "org.jheaps:jheaps:0.13"
implementation "org.antlr:antlr4-runtime:4.8-1"
implementation "org.apache.commons:commons-text:1.8"
//testImplementation "junit:junit:4.13.1"
implementation "org.matheclipse:matheclipse-frontend:1.0.0-SNAPSHOT"
implementation "org.matheclipse:matheclipse-core:1.0.0-SNAPSHOT"
implementation "org.commonmark:commonmark:0.17.1"
implementation "org.commonmark:commonmark-ext-gfm-tables:0.17.1"
implementation "org.apfloat:apfloat:1.10.0-SNAPSHOT"
//implementation "org.apache.logging.log4j:log4j-core:2.13.2"
//implementation "org.apache.logging.log4j:log4j-api:2.13.2"
//testImplementation "org.slf4j:slf4j-simple:1.7.25"
//implementation "org.slf4j:log4j-over-slf4j:1.7.25"
implementation "org.hipparchus:hipparchus-core:1.8"
implementation "org.hipparchus:hipparchus-clustering:1.8"
implementation "org.hipparchus:hipparchus-fft:1.8"
implementation "org.hipparchus:hipparchus-fitting:1.8"
implementation "org.hipparchus:hipparchus-ode:1.8"
implementation "org.hipparchus:hipparchus-optim:1.8"
implementation "org.hipparchus:hipparchus-stat:1.8"
//implementation "commons-codec:commons-codec:1.14"
implementation "org.apache.commons:commons-lang3:3.11"
implementation "com.google.code.findbugs:jsr305:3.0.0"
implementation "org.logicng:logicng:2.0.2"
implementation "org.gavaghan:geodesy:1.1.3"
implementation "it.unimi.dsi:fastutil:8.5.2"
implementation "org.codehaus.janino:janino:3.1.3"
implementation "com.ibm.icu:icu4j:68.2"
implementation "com.univocity:univocity-parsers:2.8.4"
testImplementation "org.junit.jupiter:junit-jupiter-api:5.4.2"
testImplementation "org.junit.jupiter:junit-jupiter-engine:5.4.2"
testImplementation "org.junit.vintage:junit-vintage-engine:5.4.2"
//implementation "org.matheclipse:matheclipse-api:1.0.0-SNAPSHOT"
//implementation "org.matheclipse:matheclipse-io:1.0.0-SNAPSHOT"
//implementation "org.matheclipse:matheclipse-beakerx:1.0.0-SNAPSHOT"
...
现在，server构建似乎工作。但是，如果我现在使用 using 运行gradlew run -Dtests.es.xpack.security.enabled=false -Dtests.heap.size=1G，则会有不同的任务失败：
> Configure project :modules:reindex
Disabling reindex-from-old tests because we can't get the pid file on windows
> Configure project :plugins:repository-hdfs
hdfsFixture unsupported, please set HADOOP_HOME and put HADOOP_HOME\bin in PATH
> Configure project :x-pack:plugin:searchable-snapshots:qa:hdfs
hdfsFixture unsupported, please set HADOOP_HOME and put HADOOP_HOME\bin in PATH
=======================================
Elasticsearch Build Hamster says Hello!
Gradle Version : 6.8
OS Info : Windows 10 10.0 (amd64)
JDK Version : 15 (Oracle)
JAVA_HOME : C:\Program Files\Java\jdk-15.0.1
Random Testing Seed : 266D7D1003A7C996
In FIPS 140 mode : false
=======================================
> Task :modules:kibana:bundlePlugin FAILED
> Task :modules:ingest-user-agent:bundlePlugin FAILED
> Task :modules:aggs-matrix-stats:bundlePlugin FAILED
> Task :modules:ingest-common:bundlePlugin FAILED
> Task :modules:lang-mustache:bundlePlugin FAILED
> Task :modules:ingest-geoip:bundlePlugin FAILED
> Task :modules:analysis-common:bundlePlugin FAILED
> Task :modules:geo:bundlePlugin FAILED
FAILURE: Build completed with 8 failures.
1: Task failed with an exception.
-----------
* What went wrong:
...
* Get more help at https://help.gradle.org
BUILD FAILED in 13s
204 actionable tasks: 9 executed, 195 up-to-date
我觉得这很好奇，因为我没有对我的 Elasticsearch 分支的这些部分进行任何更改。这里发生了什么？
编辑 4：在 Elasticsearch 的“jar hell”功能出现一些问题后，我设法在@IanGabes 的帮助下通过repositories将build.gradle. 问题是，Symja 类似乎还没有工作。我有一个normalize当前执行以下操作的方法：
private void normalize(String queryString) {
System.out.println("I'm here!");
String eString = "";
ExprEvaluator util = new ExprEvaluator(false, (short) 100);
IExpr e;
}
该方法在调用BoolQueryBuilder.doToQuery()之前在 Elasticsearch 中addBooleanClauses调用。现在我正在POST学习一个BooleanQuery. "I'm here!"正如预期的那样，有输出。之后，会发生以下情况：
...
╗ [2021-04-19T22:54:29,779][INFO ][stdout ] [runTask-0] I'm here!
╗ [2021-04-19T20:54:30.497923300Z] [BUILD] Stopping node
=== Standard error of node `node{::runTask-0}` ===
╗ ? last 40 non error or warning messages from C:\{path...}\elasticsearch\build\testclusters\runTask-0\logs\es.stderr.log ?
╗ fatal error in thread [elasticsearch[runTask-0][search][T#1]], exiting
╗ java.lang.NoClassDefFoundError: com/google/common/util/concurrent/UncheckedTimeoutException
╗ at org.elasticsearch.index.query.BoolQueryBuilder.normalize(BoolQueryBuilder.java:440)
╗ at org.elasticsearch.index.query.BoolQueryBuilder.doToQuery(BoolQueryBuilder.java:332)
╗ at org.elasticsearch.index.query.AbstractQueryBuilder.toQuery(AbstractQueryBuilder.java:103)
╗ at org.elasticsearch.index.query.SearchExecutionContext.lambda$toQuery$3(SearchExecutionContext.java:464)
╗ at org.elasticsearch.index.query.SearchExecutionContext.toQuery(SearchExecutionContext.java:476)
╗ at org.elasticsearch.index.query.SearchExecutionContext.toQuery(SearchExecutionContext.java:463)
╗ at org.elasticsearch.search.SearchService.parseSource(SearchService.java:912)
╗ at org.elasticsearch.search.SearchService.createContext(SearchService.java:750)
╗ at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:438)
╗ at org.elasticsearch.search.SearchService$2.lambda$onResponse$0(SearchService.java:406)
╗ at org.elasticsearch.action.ActionRunnable.lambda$supply$0(ActionRunnable.java:58)
╗ at org.elasticsearch.action.ActionRunnable$2.doRun(ActionRunnable.java:73)
╗ at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
╗ at org.elasticsearch.common.util.concurrent.TimedRunnable.doRun(TimedRunnable.java:44)
╗ at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:739)
╗ at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
╗ at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
╗ at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
╗ at java.base/java.lang.Thread.run(Thread.java:832)
╗ Caused by: java.lang.ClassNotFoundException: com.google.common.util.concurrent.UncheckedTimeoutException
╗ at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:606)
╗ at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:168)
╗ at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
╗ ... 19 more
> Task :run FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':run'.
> Elasticsearch cluster died
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at help.gradle.org
BUILD FAILED in 3m 34s
429 actionable tasks: 13 executed, 416 up-to-date
我看不出用于初始化 Symja 类的几个命令如何在这里造成任何伤害。但是当我将它们注释掉时，一切正常，所以问题似乎出在这个地方。目前包含以下依赖gradle.build项（或分别注释掉，如果它们与不同模块的其他依赖项发生冲突）：
...
implementation "org.matheclipse:matheclipse-external:1.0.0-SNAPSHOT"
//implementation "org.apache.logging.log4j:log4j-core:2.13.2"
//implementation "org.apache.logging.log4j:log4j-api:2.13.2"
testImplementation "org.slf4j:slf4j-simple:1.7.25"
//implementation "org.slf4j:log4j-over-slf4j:1.7.25"
//implementation "com.google.guava:failureaccess:1.0.1"
//implementation "com.google.guava:guava:30.1.1-jre"
//implementation "com.fasterxml.jackson.core:jackson-databind:2.11.0"
implementation "com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.11.0"
implementation "io.pebbletemplates:pebble:3.1.5"
implementation "org.jheaps:jheaps:0.13"
//implementation "org.antlr:antlr4-runtime:4.8-1"
implementation "org.apache.commons:commons-text:1.8"
//testImplementation "junit:junit:4.13.1"
implementation "org.matheclipse:matheclipse-frontend:1.0.0-SNAPSHOT"
implementation "org.matheclipse:matheclipse-core:1.0.0-SNAPSHOT"
implementation "org.commonmark:commonmark:0.17.1"
implementation "org.commonmark:commonmark-ext-gfm-tables:0.17.1"
implementation "org.apfloat:apfloat:1.10.0-SNAPSHOT"
//implementation "org.apache.logging.log4j:log4j-core:2.13.2"
//implementation "org.apache.logging.log4j:log4j-api:2.13.2"
//testImplementation "org.slf4j:slf4j-simple:1.7.25"
//implementation "org.slf4j:log4j-over-slf4j:1.7.25"
implementation "org.hipparchus:hipparchus-core:1.8"
implementation "org.hipparchus:hipparchus-clustering:1.8"
implementation "org.hipparchus:hipparchus-fft:1.8"
implementation "org.hipparchus:hipparchus-fitting:1.8"
implementation "org.hipparchus:hipparchus-ode:1.8"
implementation "org.hipparchus:hipparchus-optim:1.8"
implementation "org.hipparchus:hipparchus-stat:1.8"
//implementation "commons-codec:commons-codec:1.14"
implementation "org.apache.commons:commons-lang3:3.11"
implementation "com.google.code.findbugs:jsr305:3.0.0"
implementation "org.logicng:logicng:2.0.2"
implementation "org.gavaghan:geodesy:1.1.3"
implementation "it.unimi.dsi:fastutil:8.5.2"
implementation "org.codehaus.janino:janino:3.1.3"
//implementation "com.ibm.icu:icu4j:68.2"
implementation "com.univocity:univocity-parsers:2.8.4"
testImplementation "org.junit.jupiter:junit-jupiter-api:5.4.2"
testImplementation "org.junit.jupiter:junit-jupiter-engine:5.4.2"
testImplementation "org.junit.vintage:junit-vintage-engine:5.4.2"
...