TSK-1188 Enable combo filter for tasks

lib/taskana-core/src/main/java/pro/taskana/task/api/TaskQuery.java

@@ -611,6 +611,23 @@ public interface TaskQuery extends BaseQuery<TaskSummary, TaskQueryColumnName> {
    */
   TaskQuery orderByClassificationName(SortDirection sortDirection);
 
+  /**
+   * Add your wildcard search value for pattern matching to your query. It will be compared in SQL
+   * with the LIKE operator. You may use a wildcard like % to specify the pattern.
+   *
+   * @param wildcardSearchValue the wildcard search value
+   * @return the query
+   */
+  TaskQuery wildcardSearchValueLike(String wildcardSearchValue);
+
+  /**
+   * Add the values of the wildcard search fields for exact matching to your query.
+   *
+   * @param wildcardSearchFields the values of your wildcard search fields
+   * @return the query
+   */
+  TaskQuery wildcardSearchFieldsIn(WildcardSearchFields... wildcardSearchFields);
+
   /**
    * This method sorts the query result according to the completed timestamp.
    *

lib/taskana-core/src/main/java/pro/taskana/task/api/WildcardSearchFields.java

@@ -0,0 +1,51 @@
+package pro.taskana.task.api;
+
+import java.util.Arrays;
+import java.util.Map;
+import java.util.TreeMap;
+import java.util.stream.Collectors;
+
+public enum WildcardSearchFields {
+  NAME("NAME"),
+  DESCRIPTION("DESCRIPTION"),
+  CUSTOM_1("CUSTOM_1"),
+  CUSTOM_2("CUSTOM_2"),
+  CUSTOM_3("CUSTOM_3"),
+  CUSTOM_4("CUSTOM_4"),
+  CUSTOM_5("CUSTOM_5"),
+  CUSTOM_6("CUSTOM_6"),
+  CUSTOM_7("CUSTOM_7"),
+  CUSTOM_8("CUSTOM_8"),
+  CUSTOM_9("CUSTOM_9"),
+  CUSTOM_10("CUSTOM_10"),
+  CUSTOM_11("CUSTOM_11"),
+  CUSTOM_12("CUSTOM_12"),
+  CUSTOM_13("CUSTOM_13"),
+  CUSTOM_14("CUSTOM_14"),
+  CUSTOM_15("CUSTOM_15"),
+  CUSTOM_16("CUSTOM_16");
+
+  WildcardSearchFields(String name) {
+    this.name = name;
+  }
+
+  private static final Map<String, WildcardSearchFields> STRING_TO_ENUM =
+      Arrays.stream(values())
+          .collect(
+              Collectors.toMap(
+                  WildcardSearchFields::toString,
+                  e -> e,
+                  (first, second) -> first,
+                  () -> new TreeMap<>(String.CASE_INSENSITIVE_ORDER)));
+  private String name;
+
+  public static WildcardSearchFields fromString(String name) {
+
+    return STRING_TO_ENUM.get(name);
+  }
+
+  @Override
+  public String toString() {
+    return name;
+  }
+}

lib/taskana-core/src/main/java/pro/taskana/task/internal/TaskQueryImpl.java

@@ -24,6 +24,7 @@ import pro.taskana.task.api.ObjectReferenceQuery;
 import pro.taskana.task.api.TaskQuery;
 import pro.taskana.task.api.TaskQueryColumnName;
 import pro.taskana.task.api.TaskState;
+import pro.taskana.task.api.WildcardSearchFields;
 import pro.taskana.task.api.models.TaskSummary;
 import pro.taskana.task.internal.models.TaskSummaryImpl;
 import pro.taskana.workbasket.api.WorkbasketPermission;
@@ -147,6 +148,8 @@ public class TaskQueryImpl implements TaskQuery {
   private TimeInterval[] dueIn;
   private List<String> orderBy;
   private List<String> orderColumns;
+  private WildcardSearchFields[] wildcardSearchFieldsIn;
+  private String wildcardSearchValueLike;
 
   private boolean useDistinctKeyword = false;
   private boolean joinWithAttachments = false;
@@ -737,6 +740,18 @@ public class TaskQueryImpl implements TaskQuery {
         : addOrderCriteria("c.NAME", sortDirection);
   }
 
+  @Override
+  public TaskQuery wildcardSearchValueLike(String wildcardSearchValue) {
+    this.wildcardSearchValueLike = wildcardSearchValue;
+    return this;
+  }
+
+  @Override
+  public TaskQuery wildcardSearchFieldsIn(WildcardSearchFields... wildcardSearchFields) {
+    this.wildcardSearchFieldsIn = wildcardSearchFields;
+    return this;
+  }
+
   @Override
   public TaskQuery orderByCompleted(SortDirection sortDirection) {
     return addOrderCriteria("COMPLETED", sortDirection);
@@ -1588,6 +1603,14 @@ public class TaskQueryImpl implements TaskQuery {
         addAttachmentClassificationNameToSelectClauseForOrdering;
   }
 
+  public WildcardSearchFields[] getWildcardSearchFieldIn() {
+    return wildcardSearchFieldsIn;
+  }
+
+  public String getWildcardSearchValueLike() {
+    return wildcardSearchValueLike;
+  }
+
   private String getDatabaseId() {
     return this.taskanaEngine.getSqlSession().getConfiguration().getDatabaseId();
   }
@@ -1663,7 +1686,8 @@ public class TaskQueryImpl implements TaskQuery {
           .getWorkbasketService()
           .checkAuthorization(workbasketId, WorkbasketPermission.OPEN, WorkbasketPermission.READ);
     } catch (WorkbasketNotFoundException e) {
-      LOGGER.warn("The workbasket with the ID '" + workbasketId + "' does not exist.", e);
+      LOGGER.warn(
+          String.format("The workbasket with the ID ' %s ' does not exist.", workbasketId), e);
     }
   }
 
@@ -1680,11 +1704,9 @@ public class TaskQueryImpl implements TaskQuery {
               WorkbasketPermission.READ);
     } catch (WorkbasketNotFoundException e) {
       LOGGER.warn(
-          "The workbasket with the KEY '"
+          String.format(
-              + keyDomain.getKey()
+              "The workbasket with the KEY ' %s ' and DOMAIN ' %s ' does not exist.",
-              + "' and DOMAIN '"
+              keyDomain.getKey(), keyDomain.getDomain()),
-              + keyDomain.getDomain()
-              + "'does not exist.",
           e);
     }
   }
@@ -1899,6 +1921,10 @@ public class TaskQueryImpl implements TaskQuery {
         + addClassificationNameToSelectClauseForOrdering
         + ", addAttachmentClassificationNameToSelectClauseForOrdering="
         + addAttachmentClassificationNameToSelectClauseForOrdering
+        + ", wildcardSearchFieldsIn="
+        + wildcardSearchFieldsIn
+        + ", wildcardSearchValueLike="
+        + wildcardSearchValueLike
         + "]";
   }
 }

lib/taskana-core/src/main/java/pro/taskana/task/internal/TaskQueryMapper.java

@@ -133,6 +133,7 @@ public interface TaskQueryMapper {
           + "<if test='attachmentReferenceIn != null'>AND a.REF_VALUE IN(<foreach item='item' collection='attachmentReferenceIn' separator=',' >#{item}</foreach>)</if> "
           + "<if test='attachmentReferenceLike != null'>AND (<foreach item='item' collection='attachmentReferenceLike' separator=' OR '>UPPER(a.REF_VALUE) LIKE #{item}</foreach>)</if> "
           + "<if test='attachmentReceivedIn !=null'> AND ( <foreach item='item' collection='attachmentReceivedIn' separator=' OR ' > ( <if test='item.begin!=null'> a.RECEIVED &gt;= #{item.begin} </if> <if test='item.begin!=null and item.end!=null'> AND </if><if test='item.end!=null'> a.RECEIVED &lt;=#{item.end} </if>)</foreach>)</if> "
+          + "<if test='wildcardSearchValueLike != null and wildcardSearchFieldsIn != null'>AND (<foreach item='item' collection='wildcardSearchFieldsIn' separator=' OR '>t.${item} LIKE #{wildcardSearchValueLike}</foreach>)</if> "
           + "</where>"
           + "<if test='!orderBy.isEmpty()'>ORDER BY <foreach item='item' collection='orderBy' separator=',' >${item}</foreach></if> "
           + "</script>")
@@ -319,6 +320,7 @@ public interface TaskQueryMapper {
           + "<if test='attachmentReferenceIn != null'>AND a.REF_VALUE IN(<foreach item='item' collection='attachmentReferenceIn' separator=',' >#{item}</foreach>)</if> "
           + "<if test='attachmentReferenceLike != null'>AND (<foreach item='item' collection='attachmentReferenceLike' separator=' OR '>UPPER(a.REF_VALUE) LIKE #{item}</foreach>)</if> "
           + "<if test='attachmentReceivedIn !=null'> AND ( <foreach item='item' collection='attachmentReceivedIn' separator=' OR ' > ( <if test='item.begin!=null'> a.RECEIVED &gt;= #{item.begin} </if> <if test='item.begin!=null and item.end!=null'> AND </if><if test='item.end!=null'> a.RECEIVED &lt;=#{item.end} </if>)</foreach>)</if> "
+          + "<if test='wildcardSearchValueLike != null and wildcardSearchFieldsIn != null'>AND (<foreach item='item' collection='wildcardSearchFieldsIn' separator=' OR '>t.${item} LIKE #{wildcardSearchValueLike}</foreach>)</if> "
           + "</where> "
           + "), Y (ID, EXTERNAL_ID, CREATED, CLAIMED, COMPLETED, MODIFIED, PLANNED, DUE, NAME, CREATOR, DESCRIPTION, NOTE, PRIORITY, STATE, TCLASSIFICATION_KEY, "
           + " CLASSIFICATION_CATEGORY, CLASSIFICATION_ID, WORKBASKET_ID, DOMAIN, WORKBASKET_KEY, BUSINESS_PROCESS_ID, PARENT_BUSINESS_PROCESS_ID, OWNER, "

lib/taskana-core/src/test/java/acceptance/task/QueryTasksAccTest.java

@@ -642,6 +642,8 @@ class QueryTasksAccTest extends AbstractAccTest {
   void testQueryForOrderByWorkbasketIdDesc() {
     List<TaskSummary> results =
         taskService.createTaskQuery().orderByWorkbasketId(DESCENDING).list();
+            .orderByCustomAttribute("4", DESCENDING)
+    assertEquals("99rty", results.get(0).getCustomAttribute("4"));
 
     assertThat(results)
         .hasSizeGreaterThan(2)

lib/taskana-core/src/test/java/acceptance/task/QueryTasksByWildcardSearchAccTest.java

@@ -0,0 +1,72 @@
+package acceptance.task;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import acceptance.AbstractAccTest;
+import java.util.List;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+
+import pro.taskana.common.api.BaseQuery.SortDirection;
+import pro.taskana.security.JaasExtension;
+import pro.taskana.security.WithAccessId;
+import pro.taskana.task.api.TaskService;
+import pro.taskana.task.api.WildcardSearchFields;
+import pro.taskana.task.api.models.TaskSummary;
+
+@ExtendWith(JaasExtension.class)
+public class QueryTasksByWildcardSearchAccTest extends AbstractAccTest {
+
+  @WithAccessId(
+      userName = "teamlead_1",
+      groupNames = {"group_1", "group_2"})
+  @Test
+  void should_ReturnAllTasksByWildcardSearch_For_ProvidedSearchValue() {
+    TaskService taskService = taskanaEngine.getTaskService();
+
+    WildcardSearchFields[] wildcards = {
+      WildcardSearchFields.CUSTOM_3, WildcardSearchFields.CUSTOM_4, WildcardSearchFields.NAME
+    };
+
+    List<TaskSummary> foundTasks =
+        taskService
+            .createTaskQuery()
+            .wildcardSearchFieldsIn(wildcards)
+            .wildcardSearchValueLike("%99%")
+            .orderByName(SortDirection.ASCENDING)
+            .list();
+
+    assertThat(foundTasks).hasSize(4);
+  }
+
+  @WithAccessId(
+      userName = "teamlead_1",
+      groupNames = {"group_1", "group_2"})
+  @Test
+  void should_ReturnAllTasks_When_ProvidingNoSearchFieldsOrValue() {
+
+    TaskService taskService = taskanaEngine.getTaskService();
+
+    WildcardSearchFields[] wildcards = {
+      WildcardSearchFields.CUSTOM_3, WildcardSearchFields.CUSTOM_4, WildcardSearchFields.NAME
+    };
+
+    List<TaskSummary> foundTasks =
+        taskService
+            .createTaskQuery()
+            .wildcardSearchFieldsIn(wildcards)
+            .orderByName(SortDirection.ASCENDING)
+            .list();
+
+    assertThat(foundTasks).hasSize(83);
+
+    foundTasks =
+        taskService
+            .createTaskQuery()
+            .wildcardSearchValueLike("%99%")
+            .orderByName(SortDirection.ASCENDING)
+            .list();
+
+    assertThat(foundTasks).hasSize(83);
+  }
+}

lib/taskana-data/src/main/resources/sql/sample-data/task.sql

@@ -8,8 +8,8 @@ INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000005', 'ETI:0000000
 INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000006', 'ETI:000000000000000000000000000000000006', RELATIVE_DATE(-5)   , null                 , null                 , RELATIVE_DATE(0)     , RELATIVE_DATE(-5)    , RELATIVE_DATE(0)     , 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000006' , 'DOC_0000000000000000006' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '11223344'     , false  , false         , null         , 'NONE'        , null              , null        , null        , null       , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
 INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000007', 'ETI:000000000000000000000000000000000007', RELATIVE_DATE(-6)   , null                 , null                 , RELATIVE_DATE(0)     , RELATIVE_DATE(-6)    , RELATIVE_DATE(0)     , 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000007' , 'DOC_0000000000000000007' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '11223344'     , false  , false         , null         , 'NONE'        , null              , null        , null        , 'ffg'      , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
 INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000008', 'ETI:000000000000000000000000000000000008', RELATIVE_DATE(-6)   , null                 , null                 , RELATIVE_DATE(0)     , RELATIVE_DATE(-6)    , RELATIVE_DATE(0)     , 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000008' , 'DOC_0000000000000000008' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'        , null              , null        , null        , null       , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
-INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000009', 'ETI:000000000000000000000000000000000009', RELATIVE_DATE(-7)   , null                 , null                 , RELATIVE_DATE(0)     , RELATIVE_DATE(-7)    , RELATIVE_DATE(-4)    , 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000009' , 'DOC_0000000000000000009' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'        , null              , null        , null        , null       , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
+INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000009', 'ETI:000000000000000000000000000000000009', RELATIVE_DATE(-7)   , null                 , null                 , RELATIVE_DATE(0)     , RELATIVE_DATE(-7)    , RELATIVE_DATE(-4)    , 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000009' , 'DOC_0000000000000000009' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'        , null              , null        , null        , 'rty99'       , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
-INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000010', 'ETI:000000000000000000000000000000000010', RELATIVE_DATE(-8)   , null                 , null                 , RELATIVE_DATE(-2)    , RELATIVE_DATE(-8)    , RELATIVE_DATE(-2)    , 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000010' , 'DOC_0000000000000000010' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'        , null              , null        , null        , null       , 'rty'      , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
+INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000010', 'ETI:000000000000000000000000000000000010', RELATIVE_DATE(-8)   , null                 , null                 , RELATIVE_DATE(-2)    , RELATIVE_DATE(-8)    , RELATIVE_DATE(-2)    , 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000010' , 'DOC_0000000000000000010' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'        , null              , null        , null        , null       , '99rty'      , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
 INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000011', 'ETI:000000000000000000000000000000000011', RELATIVE_DATE(-8)   , null                 , null                 , RELATIVE_DATE(-2)    , RELATIVE_DATE(-8)    , RELATIVE_DATE(2)     , 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000011' , 'DOC_0000000000000000011' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'        , null              , null        , null        , null       , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
 INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000012', 'ETI:000000000000000000000000000000000012', RELATIVE_DATE(-8)   , null                 , null                 , RELATIVE_DATE(-2)    , RELATIVE_DATE(-7)    , RELATIVE_DATE(10)    , 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000012' , 'DOC_0000000000000000012' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'        , null              , null        , null        , null       , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
 INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000013', 'ETI:000000000000000000000000000000000013', RELATIVE_DATE(-8)   , null                 , null                 , RELATIVE_DATE(-2)    , RELATIVE_DATE(-7)    , RELATIVE_DATE(10)    , 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000013' , 'DOC_0000000000000000013' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'        , null              , null        , null        , null       , null       , 'rty'      , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );

lib/taskana-data/src/main/resources/sql/test-data/task.sql

@@ -8,8 +8,8 @@ INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000005', 'ETI:0000000
 INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000006', 'ETI:000000000000000000000000000000000006', '2018-01-29 15:55:06', null                 , '2018-01-30 16:55:06', '2018-01-29 15:55:06', '2018-01-29 15:55:00', '2018-01-30 15:55:00', 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000006' , 'DOC_0000000000000000006' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '11223344'     , false  , false         , null         , 'NONE'          , null              , null        , null        , null       , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
 INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000007', 'ETI:000000000000000000000000000000000007', '2018-01-29 15:55:07', null                 , null                 , '2018-01-29 15:55:07', '2018-01-29 15:55:00', '2018-01-30 15:55:00', 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000007' , 'DOC_0000000000000000007' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '11223344'     , false  , false         , null         , 'NONE'          , null              , null        , null        , 'ffg'      , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
 INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000008', 'ETI:000000000000000000000000000000000008', '2018-01-29 15:55:08', null                 , null                 , '2018-01-29 15:55:08', '2018-01-29 15:55:00', '2018-01-30 15:55:00', 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000008' , 'DOC_0000000000000000008' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'          , null              , null        , null        , null       , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
-INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000009', 'ETI:000000000000000000000000000000000009', '2018-01-29 15:55:09', null                 , null                 , '2018-01-29 15:55:09', '2018-01-29 15:55:00', '2018-01-30 15:55:00', 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000009' , 'DOC_0000000000000000009' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'          , null              , null        , null        , null       , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
+INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000009', 'ETI:000000000000000000000000000000000009', '2018-01-29 15:55:09', null                 , null                 , '2018-01-29 15:55:09', '2018-01-29 15:55:00', '2018-01-30 15:55:00', 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000009' , 'DOC_0000000000000000009' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'          , null              , null        , null        , 'rty99'       , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
-INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000010', 'ETI:000000000000000000000000000000000010', '2018-01-29 15:55:10', null                 , null                 , '2018-01-29 15:55:10', '2018-01-29 15:55:00', '2018-01-30 15:55:00', 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000010' , 'DOC_0000000000000000010' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'          , null              , null        , null        , null       , 'rty'      , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
+INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000010', 'ETI:000000000000000000000000000000000010', '2018-01-29 15:55:10', null                 , null                 , '2018-01-29 15:55:10', '2018-01-29 15:55:00', '2018-01-30 15:55:00', 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000010' , 'DOC_0000000000000000010' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'          , null              , null        , null        , null       , '99rty'      , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
 INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000011', 'ETI:000000000000000000000000000000000011', '2018-01-29 15:55:11', null                 , null                 , '2018-01-29 15:55:11', '2018-01-29 15:55:00', '2018-01-30 15:55:00', 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000011' , 'DOC_0000000000000000011' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'          , null              , null        , null        , null       , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
 INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000012', 'ETI:000000000000000000000000000000000012', '2018-01-29 15:55:12', null                 , null                 , '2018-01-29 15:55:12', '2018-01-29 15:55:00', '2018-01-30 15:55:00', 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000012' , 'DOC_0000000000000000012' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'          , null              , null        , null        , null       , null       , null       , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );
 INSERT INTO TASK VALUES('TKI:000000000000000000000000000000000013', 'ETI:000000000000000000000000000000000013', '2018-01-29 15:55:13', null                 , null                 , '2018-01-29 15:55:13', '2018-01-29 15:55:00', '2018-01-30 15:55:00', 'Widerruf'                , 'creator_user_id'            , 'Widerruf'                                 , null                                     , 2       , 'READY'     , 'EXTERN'                 , 'L1050'           , 'CLI:100000000000000000000000000000000003', 'WBI:100000000000000000000000000000000001' , 'GPK_KSC'     , 'DOMAIN_A', 'PI_0000000000013' , 'DOC_0000000000000000013' , null        , '00'        , 'PASystem' , '00'               , 'VNR'    , '22334455'     , false  , false         , null         , 'NONE'          , null              , null        , null        , null       , null       , 'rty'      , null       , null       , null       , null       , null       , null        , null        , null        , 'abc'    , null        , null    );

rest/taskana-rest-spring/src/main/java/pro/taskana/rest/TaskController.java

@@ -3,6 +3,8 @@ package pro.taskana.rest;
 import java.time.Instant;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
+import java.util.stream.Stream;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.hateoas.config.EnableHypermediaSupport;
@@ -35,6 +37,7 @@ import pro.taskana.rest.resource.TaskSummaryResourceAssembler;
 import pro.taskana.task.api.TaskQuery;
 import pro.taskana.task.api.TaskService;
 import pro.taskana.task.api.TaskState;
+import pro.taskana.task.api.WildcardSearchFields;
 import pro.taskana.task.api.exceptions.AttachmentPersistenceException;
 import pro.taskana.task.api.exceptions.InvalidOwnerException;
 import pro.taskana.task.api.exceptions.InvalidStateException;
@@ -77,6 +80,8 @@ public class TaskController extends AbstractPagingController {
   private static final String PLANNED_UNTIL = "planned-until";
   private static final String PLANNED_FROM = "planned-from";
   private static final String EXTERNAL_ID = "external-id";
+  private static final String WILDCARD_SEARCH_VALUE = "wildcard-search-value";
+  private static final String WILDCARD_SEARCH_FIELDS = "wildcard-search-fields";
 
   private static final String SORT_BY = "sort-by";
   private static final String SORT_DIRECTION = "order";
@@ -295,6 +300,7 @@ public class TaskController extends AbstractPagingController {
       params.remove(PRIORITY);
     }
     if (params.containsKey(STATE)) {
+
       TaskState[] states = extractStates(params);
       taskQuery.stateIn(states);
       params.remove(STATE);
@@ -382,6 +388,18 @@ public class TaskController extends AbstractPagingController {
       updateTaskQueryWithIndefiniteTimeInterval(taskQuery, params, DUE_TO, timeInterval);
     }
 
+    if (params.containsKey(WILDCARD_SEARCH_FIELDS) && params.containsKey(WILDCARD_SEARCH_VALUE)) {
+
+      String[] requestedWildcardSearchFields =
+          extractCommaSeparatedFields(params.get(WILDCARD_SEARCH_FIELDS));
+
+      taskQuery.wildcardSearchFieldsIn(createWildcardSearchFields(requestedWildcardSearchFields));
+
+      taskQuery.wildcardSearchValueLike(params.getFirst(WILDCARD_SEARCH_VALUE));
+      params.remove(WILDCARD_SEARCH_FIELDS);
+      params.remove(WILDCARD_SEARCH_VALUE);
+    }
+
     if (params.containsKey(EXTERNAL_ID)) {
       String[] externalIds = extractCommaSeparatedFields(params.get(EXTERNAL_ID));
       taskQuery.externalIdIn(externalIds);
@@ -395,6 +413,14 @@ public class TaskController extends AbstractPagingController {
     return taskQuery;
   }
 
+  private WildcardSearchFields[] createWildcardSearchFields(String[] wildcardFields) {
+
+    return Stream.of(wildcardFields)
+        .map(WildcardSearchFields::fromString)
+        .filter(Objects::nonNull)
+        .toArray(WildcardSearchFields[]::new);
+  }
+
   private void updateTaskQueryWithWorkbasketKey(
       TaskQuery taskQuery, MultiValueMap<String, String> params) throws InvalidArgumentException {
 
@@ -442,6 +468,22 @@ public class TaskController extends AbstractPagingController {
               + PLANNED_UNTIL
               + "\"");
     }
+
+    if (params.containsKey(WILDCARD_SEARCH_FIELDS) && !params.containsKey(WILDCARD_SEARCH_VALUE)
+        || !params.containsKey(WILDCARD_SEARCH_FIELDS)
+            && params.containsKey(WILDCARD_SEARCH_VALUE)) {
+
+      throw new IllegalArgumentException(
+          "It is prohibited to use the params "
+              + "\""
+              + WILDCARD_SEARCH_FIELDS
+              + "\""
+              + " or "
+              + "\""
+              + WILDCARD_SEARCH_VALUE
+              + "\""
+              + " without one another. If one is provided you must provide the other one as well");
+    }
   }
 
   private void updateTaskQueryWithIndefiniteTimeInterval(

rest/taskana-rest-spring/src/test/java/pro/taskana/rest/TaskControllerIntTest.java

@@ -210,6 +210,53 @@ class TaskControllerIntTest {
     assertThat(response.getBody().getContent()).hasSize(6);
   }
 
+  @Test
+  void should_ReturnAllTasksByWildcardSearch_For_ProvidedSearchValue() {
+    ResponseEntity<TaskSummaryListResource> response =
+        template.exchange(
+            restHelper.toUrl(Mapping.URL_TASKS)
+                + "?wildcard-search-value=%99%"
+                + "&wildcard-search-fields=NAME,custom_3,CuStOM_4",
+            HttpMethod.GET,
+            new HttpEntity<String>(restHelper.getHeadersAdmin()),
+            ParameterizedTypeReference.forType(TaskSummaryListResource.class));
+    assertThat(response.getBody().getLink(Link.REL_SELF)).isNotNull();
+    assertThat(response.getBody().getContent()).hasSize(4);
+  }
+
+  @Test
+  void should_ThrowException_When_ProvidingInvalidWildcardSearchParameters() {
+
+    ThrowingCallable httpCall =
+        () -> {
+          template.exchange(
+              restHelper.toUrl(Mapping.URL_TASKS) + "?wildcard-search-value=%rt%",
+              HttpMethod.GET,
+              restHelper.defaultRequest(),
+              ParameterizedTypeReference.forType(TaskSummaryListResource.class));
+        };
+    assertThatThrownBy(httpCall)
+        .isInstanceOf(HttpClientErrorException.class)
+        .hasMessageContaining("400")
+        .extracting(ex -> ((HttpClientErrorException) ex).getStatusCode())
+        .isEqualTo(HttpStatus.BAD_REQUEST);
+
+    ThrowingCallable httpCall2 =
+        () -> {
+          template.exchange(
+              restHelper.toUrl(Mapping.URL_TASKS)
+                  + "?wildcard-search-fields=NAME,CUSTOM_3,CUSTOM_4",
+              HttpMethod.GET,
+              restHelper.defaultRequest(),
+              ParameterizedTypeReference.forType(TaskSummaryListResource.class));
+        };
+    assertThatThrownBy(httpCall2)
+        .isInstanceOf(HttpClientErrorException.class)
+        .hasMessageContaining("400")
+        .extracting(ex -> ((HttpClientErrorException) ex).getStatusCode())
+        .isEqualTo(HttpStatus.BAD_REQUEST);
+  }
+
   @Test
   void testGetAllTasksByWorkbasketIdWithinSingleDueTimeInterval() {
 

rest/taskana-rest-spring/src/test/resources/asciidoc/rest-api.adoc

@@ -122,7 +122,16 @@ The list generated in the response can be filtered using following parameters in
 name | priority | state | classification.key | workbasket-id | {workbasket-key , domain} | +
 owner | por.company | por.system | por.instance | por.type | por.value +
 planned | planned-from | planned-until | due | due-from | due-until | +
-external-id
+external-id | wildcard-search-value | wildcard-search-fields
+
+When filtering a wildcard search you must provide both paremters +
+(wildcard-search-value and wildcard-search-fields). Valid wildcard-search-fields are: +
+
+-name +
+-description +
+-custom_1 to custom_16 +
+
+These fields are case insensitive! +
 
 If it is sufficient to filter the list with a single time interval, use the parameters +
 planned-from/due-from and planned-until/due-until. +