在 groovy 中使用 Iterable<Component> 进行数字字符串排序

问题描述

我想对 Iterable<Component> components 中的版本进行排序。当我在控制台中打印时,它会显示以下结果:

artifact 1.0.1
artifact 1.0.10
artifact 1.0.11
artifact 1.0.12
artifcat 1.0.2
artifcat 1.0.3
artifcat 1.0.4

这是我的代码

import org.sonatype.nexus.repository.storage.Component
import org.sonatype.nexus.repository.storage.Query
import org.sonatype.nexus.repository.storage.StorageFacet

def repoName = "artifact"

log.info("delete components for repository: " + repoName)


def repo = repository.repositoryManager.get(repoName)
def tx = repo.facet(StorageFacet).txsupplier().get()
try {
tx.begin()
    Iterable<Component> components = tx.findComponents(Query.builder()
      .where('version < ').param('1.1.0')
      .build(),[repo])
    tx.commit()
    
    for(Component c : components) {
        log.info("Name " + c.name() + " Version" + c.version())
    }
} catch (Exception e) {
    log.warn("Transaction Failed {}",e.toString())
    tx.rollback()
} finally {
    tx.close()
}

解决方法

可以按如下方式进行一些简单的按版本排序:

def components = []
'''\
artifact 1.2.1
artifact 1.0.1
artifact 1.0.10
artifact 2.0.10
artifact 1.0.11
artifact 1.0.12
artifact 1.4.12
artifcat 1.0.2
artifcat 1.0.3
artifcat 1.0.4'''.splitEachLine( ' ' ){ name,version ->
  components << [ name:name,version:version ]
}

// augment each component with numeric represenation of version
components.each{
  it.versionNumeric = it.version.split( /\./ )*.toInteger().reverse().withIndex().sum{ num,pow -> 100.power( pow ) * num }
}

components.sort{ it.versionNumeric }*.version.join '\n'

印刷品

1.0.1
1.0.2
1.0.3
1.0.4
1.0.10
1.0.11
1.0.12
1.2.1
1.4.12
2.0.10
,

另一个例子:

def components = '''\
artifact 1.2.1
artifact 1.0.1
artifact 1.0.10
artifact 2.0.10
artifact 10.2
artifact 1.0.11
artifact 1.0.12
artifact 1.4.12
artifcat 1.0.2
artifcat 1.0.3
artifcat 1.0.4
artifact 1.0.4.2'''.readLines()*.tokenize(' ').collect { name,version ->
  [name: name,version: version]
}

def sorted = components.sort { a,b ->
  def f = { it.version.tokenize('.')*.toInteger() }
  [f(a),f(b)].transpose().findResult { ai,bi -> 
    ai <=> bi ?: null 
  } ?: a.version <=> b.version
}

sorted.each { c -> 
    println c.version
}

打印:

─➤ groovy solution.groovy
1.0.1
1.0.2
1.0.3
1.0.4
1.0.4.2
1.0.10
1.0.11
1.0.12
1.2.1
1.4.12
2.0.10
10.2

请注意,此解决方案还(至少或多或少)处理具有不同元素数量的版本,例如 10.21.0.4.2