Rules element with Rules and Group by

yard-api/src/main/java/org/kie/yard/api/model/Accumulator.java

@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.kie.yard.api.model;
+
+public class Accumulator {
+    private String function;
+
+    private String parameter;
+
+    private String as;
+
+    public String getFunction() {
+        return function;
+    }
+
+    public void setFunction(String function) {
+        this.function = function;
+    }
+
+    public String getParameter() {
+        return parameter;
+    }
+
+    public void setParameter(String parameter) {
+        this.parameter = parameter;
+    }
+
+    public String getAs() {
+        return as;
+    }
+
+    public void setAs(String as) {
+        this.as = as;
+    }
+}

yard-api/src/main/java/org/kie/yard/api/model/DecisionLogic.java

@@ -27,7 +27,8 @@
         key = "type",
         value = {
                 @YamlSubtype(alias = "DecisionTable", type = DecisionTable.class),
-                @YamlSubtype(alias = "LiteralExpression", type = LiteralExpression.class)
+                @YamlSubtype(alias = "LiteralExpression", type = LiteralExpression.class),
+                @YamlSubtype(alias = "Rules", type = RuleExpression.class)
         })
 @JsonbTypeInfo(
         key = "type",

yard-api/src/main/java/org/kie/yard/api/model/Given.java

@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.kie.yard.api.model;
+
+import java.util.List;
+
+public class Given implements Pattern {
+    private String given;
+    private String from;
+    private List<String> having;
+
+    public String getGiven() {
+        return given;
+    }
+
+    public void setGiven(String given) {
+        this.given = given;
+    }
+
+    public String getFrom() {
+        return from;
+    }
+
+    public void setFrom(String from) {
+        this.from = from;
+    }
+
+    public List<String> getHaving() {
+        return having;
+    }
+
+    public void setHaving(List<String> having) {
+        this.having = having;
+    }
+}

yard-api/src/main/java/org/kie/yard/api/model/GroupBy.java

@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.kie.yard.api.model;
+
+public class GroupBy implements Pattern {
+    private Given given;
+
+    private Grouping grouping;
+
+    private Accumulator accumulator;
+
+    public Given getGiven() {
+        return given;
+    }
+
+    public void setGiven(Given given) {
+        this.given = given;
+    }
+
+    public Grouping getGrouping() {
+        return grouping;
+    }
+
+    public void setGrouping(Grouping grouping) {
+        this.grouping = grouping;
+    }
+
+    public Accumulator getAccumulators() {
+        return accumulator;
+    }
+
+    public void setAccumulators(Accumulator accumulator) {
+        this.accumulator = accumulator;
+    }
+}

yard-api/src/main/java/org/kie/yard/api/model/Grouping.java

@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.kie.yard.api.model;
+public class Grouping {
+    private String by;
+    private String as;
+
+    public String getBy() {
+        return by;
+    }
+
+    public void setBy(String by) {
+        this.by = by;
+    }
+
+    public String getAs() {
+        return as;
+    }
+
+    public void setAs(String as) {
+        this.as = as;
+    }
+}

yard-api/src/main/java/org/kie/yard/api/model/ListResult.java

@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.kie.yard.api.model;
+
+public class ListResult {
+    private String add;
+
+    public String getAdd() {
+        return add;
+    }
+
+    public void setAdd(String add) {
+        this.add = add;
+    }
+}

yard-api/src/main/java/org/kie/yard/api/model/Pattern.java

@@ -0,0 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.kie.yard.api.model;
+
+public interface Pattern {
+}

yard-api/src/main/java/org/kie/yard/api/model/Pattern_YamlDeserializerImpl.java

@@ -0,0 +1,85 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.kie.yard.api.model;
+
+import org.kie.j2cl.tools.yaml.mapper.api.YAMLDeserializer;
+import org.kie.j2cl.tools.yaml.mapper.api.exception.YAMLDeserializationException;
+import org.kie.j2cl.tools.yaml.mapper.api.internal.deser.YAMLDeserializationContext;
+import org.kie.j2cl.tools.yaml.mapper.api.node.NodeType;
+import org.kie.j2cl.tools.yaml.mapper.api.node.YamlMapping;
+import org.kie.j2cl.tools.yaml.mapper.api.node.YamlNode;
+
+import java.util.ArrayList;
+import java.util.Objects;
+
+public class Pattern_YamlDeserializerImpl
+        implements YAMLDeserializer<Pattern> {
+
+    @Override
+    public Pattern deserialize(YamlMapping yamlMapping, String s, YAMLDeserializationContext yamlDeserializationContext) throws YAMLDeserializationException {
+        return deserialize(yamlMapping.getNode(s), yamlDeserializationContext);
+    }
+
+    @Override
+    public Pattern deserialize(YamlNode yamlNode, YAMLDeserializationContext yamlDeserializationContext) {
+        final YamlMapping mapping = yamlNode.asMapping();
+        if (mapping.keys().contains("given")) {
+            return createGiven(mapping);
+        } else if (mapping.keys().contains("groupBy")) {
+            final GroupBy groupBy = new GroupBy();
+            groupBy.setGiven(createGiven(mapping.getNode("groupBy").asMapping()));
+            groupBy.setGrouping(createGrouping(mapping.getNode("grouping").asMapping()));
+            groupBy.setAccumulators(createAccumulator(mapping.getNode("accumulator").asMapping()));
+            return groupBy;
+        }
+        throw new IllegalStateException("Unknown element, should be given or groupBy");
+    }
+
+    private Accumulator createAccumulator(final YamlMapping groupBy) {
+        final Accumulator accumulator = new Accumulator();
+        accumulator.setFunction((String) groupBy.getNode("function").asScalar().value());
+        accumulator.setAs((String) groupBy.getNode("as").asScalar().value());
+        if (groupBy.keys().contains("parameter")) {
+            accumulator.setParameter((String) groupBy.getNode("parameter").asScalar().value());
+        }
+        // TODO All are cast to Strings, check what happens with numbers
+        return accumulator;
+    }
+
+    private static Given createGiven(YamlMapping mapping) {
+        final Given given = new Given();
+        given.setGiven((String) mapping.getNode("given").asScalar().value());
+        given.setFrom((String) mapping.getNode("from").asScalar().value());
+        given.setHaving(new ArrayList<>());
+        if (mapping.keys().contains("having")
+                && Objects.equals(mapping.getNode("having").type(), NodeType.SEQUENCE)) {
+            for (YamlNode having : mapping.getNode("having").asSequence()) {
+                given.getHaving().add((String) having.asScalar().value());
+            }
+        }
+        return given;
+    }
+
+    private Grouping createGrouping(YamlMapping groupingNode) {
+        final Grouping grouping = new Grouping();
+        grouping.setBy((String) groupingNode.getNode("by").asScalar().value());
+        grouping.setAs((String) groupingNode.getNode("as").asScalar().value());
+        return grouping;
+    }
+}

yard-api/src/main/java/org/kie/yard/api/model/Pattern_YamlSerializerImpl.java

@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.kie.yard.api.model;
+
+import org.kie.j2cl.tools.yaml.mapper.api.YAMLSerializer;
+import org.kie.j2cl.tools.yaml.mapper.api.internal.ser.YAMLSerializationContext;
+import org.kie.j2cl.tools.yaml.mapper.api.node.YamlMapping;
+import org.kie.j2cl.tools.yaml.mapper.api.node.YamlSequence;
+
+public class Pattern_YamlSerializerImpl
+        implements YAMLSerializer<Pattern> {
+    @Override
+    public void serialize(YamlMapping yamlMapping, String s, Pattern when, YAMLSerializationContext yamlSerializationContext) {
+
+    }
+
+    @Override
+    public void serialize(YamlSequence yamlSequence, Pattern when, YAMLSerializationContext yamlSerializationContext) {
+
+    }
+}