From 2e2d2fbb26c1d46ac195fcab768c0b1f4241bc28 Mon Sep 17 00:00:00 2001
From: npedot <nicola.pedot@gmail.com>
Date: Thu, 23 Jan 2020 17:37:08 +0100
Subject: [PATCH] adds xpath conditionals
---
.../usecase/XPathTransformUseCase.kt | 35 ++++++++++++++-----
.../decompose/vertical_decompose_1.paths | 6 ++--
2 files changed, 30 insertions(+), 11 deletions(-)
diff --git a/src/main/kotlin/unibz.cs.semint.kprime/usecase/XPathTransformUseCase.kt b/src/main/kotlin/unibz.cs.semint.kprime/usecase/XPathTransformUseCase.kt
index bf410f3..315bacd 100644
--- a/src/main/kotlin/unibz.cs.semint.kprime/usecase/XPathTransformUseCase.kt
+++ b/src/main/kotlin/unibz.cs.semint.kprime/usecase/XPathTransformUseCase.kt
@@ -19,8 +19,8 @@ class XPathTransformUseCase {
val vdecomposeTemplatePath = "transformer/${trasformerName}/${trasformerDirection}/${trasformerName}_${trasformerDirection}_${trasformerVersion}.template"
val personProperties = XPathTransformUseCase::class.java.getResourceAsStream(vdecomposeFilePath)
- val personPaths = Properties()
- personPaths.load(personProperties)
+ val xPaths = Properties()
+ xPaths.load(personProperties)
var dbStream : InputStream
if (dbFilePath.startsWith("/"))
@@ -35,35 +35,54 @@ class XPathTransformUseCase {
val templConfig = Configuration(Configuration.VERSION_2_3_29)
val classTemplLoader = ClassTemplateLoader(XPathTransformUseCase::javaClass.javaClass, "/")
templConfig.templateLoader = classTemplLoader
- val templModel = mutableMapOf<String, Any>()
+ val templModel = mutableMapOf<String, List<String>>()
// compute xpath lists
val xpath = XPathFactory.newInstance().newXPath()
- for (entryNameas in personPaths.propertyNames()) {
+ var goon=true
+ for (entryNameas in xPaths.propertyNames()) {
val name = entryNameas as String
- val value = personPaths.getProperty(name)
+ val pathTokens = xPaths.getProperty(name).split(" ")
+ val value = pathTokens[0]
if (!(value.startsWith("-") || value.startsWith("+"))) {
templModel[name] = asValueList(xpath.compile(value).evaluate(doc, XPathConstants.NODESET) as NodeList)
println(" ${name} = ${value}")
println(" ${name} = ${templModel[name]}")
}
+ if (pathTokens.size==3) {
+ val pathCondition = pathTokens[1]
+ val pathSize = pathTokens[2].toInt()
+ if (pathCondition==">")
+ if ((templModel[name])!!.size <= pathSize ) goon=false
+ if (pathCondition=="=")
+ if ((templModel[name])!!.size != pathSize ) goon=false
+ }
+ }
+ if (!goon) {
+ println("Condition Failure")
+ return
}
// compute derived list sum and minus
- for (entryNameas in personPaths.propertyNames()) {
+ for (entryNameas in xPaths.propertyNames()) {
val name = entryNameas as String
- val value = personPaths.getProperty(name)
+ val value = xPaths.getProperty(name)
if (value.startsWith("-") || value.startsWith("+")) {
println(" ${name} = ${value}")
templModel[name] = computeDerivedList(templModel, value)
}
}
+ // compute list conditions
+ // = = 3 xpath
+ // = > 0 xpath
+ // = = 0 xpath
+
val templ = //Template.getPlainTextTemplate("templ1",personTemplate,templConfig)
templConfig.getTemplate(vdecomposeTemplatePath)
templ.process(templModel, OutputStreamWriter(System.out))
}
- private fun computeDerivedList(templModel: MutableMap<String, Any>, derivationRule: String): Any {
+ private fun computeDerivedList(templModel: MutableMap<String, List<String>>, derivationRule: String): List<String> {
var derivedList = mutableListOf<String>()
// if derivationRule starts with + then compute union
val splittedRule = derivationRule.split(" ")
diff --git a/src/test/resources/transformer/vertical/decompose/vertical_decompose_1.paths b/src/test/resources/transformer/vertical/decompose/vertical_decompose_1.paths
index d65ba38..27b6e2d 100644
--- a/src/test/resources/transformer/vertical/decompose/vertical_decompose_1.paths
+++ b/src/test/resources/transformer/vertical/decompose/vertical_decompose_1.paths
@@ -1,6 +1,6 @@
-all=/database/schema/tables/tables[@name='person']/columns/columns/@name
-keys=/database/schema/constraints/constraints[@type='PRIMARY_KEY']/source/columns/columns/@name
+all=/database/schema/tables/tables[@name='person']/columns/columns/@name = 4
+keys=/database/schema/constraints/constraints[@type='PRIMARY_KEY']/source/columns/columns/@name > 0
lhss=/database/schema/constraints/constraints[@type='FUNCTIONAL']/source/columns/columns/@name
rhss=/database/schema/constraints/constraints[@type='FUNCTIONAL']/target/columns/columns/@name
rests=- all keys lhss rhss
-table=/database/schema/tables/tables[@name='person']/@name
\ No newline at end of file
+table=/database/schema/tables/tables[@name='person']/@name = 1
\ No newline at end of file
--
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