Implemented multi part query so that search terms can be separated by white space, e. g. 'Berliner Sparkasse'

fints4javaLib/src/main/kotlin/net/dankito/fints/banks/BankFinder.kt

@@ -29,14 +29,29 @@ open class BankFinder {
         }
 
         val queryLowerCase = query.toLowerCase()
+        val queryPartsLowerCase = queryLowerCase.split(" ")
 
-        return getBankList().filter {
-            it.name.toLowerCase().contains(queryLowerCase)
-                    || it.bankCode.startsWith(query)
-                    || it.city.toLowerCase().contains(queryLowerCase)
+        return getBankList().filter { bankInfo ->
+            checkIfAllQueryPartsMatchBank(queryPartsLowerCase, bankInfo)
         }
     }
 
+    protected open fun checkIfAllQueryPartsMatchBank(queryPartsLowerCase: List<String>, bankInfo: BankInfo): Boolean {
+        for (queryPartLowerCase in queryPartsLowerCase) {
+            if (checkIfQueryMatchesBank(bankInfo, queryPartLowerCase) == false) {
+                return false
+            }
+        }
+
+        return true
+    }
+
+    protected open fun checkIfQueryMatchesBank(bankInfo: BankInfo, queryLowerCase: String): Boolean {
+        return bankInfo.name.toLowerCase().contains(queryLowerCase)
+                || bankInfo.bankCode.startsWith(queryLowerCase)
+                || bankInfo.city.toLowerCase().contains(queryLowerCase)
+    }
+
 
     open fun getBankList(): List<BankInfo> {
         bankListField?.let {

fints4javaLib/src/test/kotlin/net/dankito/fints/banks/BankFinderTest.kt

@@ -19,8 +19,9 @@ class BankFinderTest {
         assertThat(result[0].name).isEqualTo("Bundesbank")
     }
 
+
     @Test
-    fun findBankByNameBankCodeOrCity_starnberg() {
+    fun findBankByNameBankCodeOrCity_Starnberg_MultipleResults() {
 
         // when
         val result = underTest.findBankByNameBankCodeOrCity("starnberg")
@@ -30,14 +31,39 @@ class BankFinderTest {
     }
 
     @Test
-    fun findBankByNameBankCodeOrCity_mizUh() {
+    fun findBankByNameBankCodeOrCity_mizUh_SingleResult() {
 
         // when
         val result = underTest.findBankByNameBankCodeOrCity("mizUh")
 
         // then
         assertThat(result).hasSize(1)
-        assertThat(result[0].name).isEqualTo("Mizuho Bank Filiale Düsseldorf")
+
+        assertThat(result.first().name).isEqualTo("Mizuho Bank Filiale Düsseldorf")
+    }
+
+    @Test
+    fun findBankByNameBankCodeOrCity_MultiPartsQuery_BerlinSparkas() {
+
+        // when
+        val result = underTest.findBankByNameBankCodeOrCity("Berlin Sparkas")
+
+        // then
+        assertThat(result).hasSize(3)
+
+        assertThat(result.first().name).isEqualTo("Landesbank Berlin - Berliner Sparkasse")
+    }
+
+    @Test
+    fun findBankByNameBankCodeOrCity_MultiPartsQuery_SparkasBerlin() {
+
+        // when
+        val result = underTest.findBankByNameBankCodeOrCity("Sparkas Berlin")
+
+        // then
+        assertThat(result).hasSize(3)
+
+        assertThat(result.first().name).isEqualTo("Landesbank Berlin - Berliner Sparkasse")
     }
 
 }