Difference tree structure declaration

LICENSE.txt

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2023 Ivan Kniazkov
+Copyright (c) 2024 Ivan Kniazkov
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

pom.xml

@@ -2,7 +2,7 @@
 <!--
 The MIT License (MIT)
 
-Copyright (c) 2023 Ivan Kniazkov
+Copyright (c) 2024 Ivan Kniazkov
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -132,9 +132,9 @@ SOFTWARE.
       <scope>test</scope>
     </dependency>
     <dependency>
-      <groupId>com.google.code.gson</groupId>
-      <artifactId>gson</artifactId>
-      <version>2.9.0</version>
+      <groupId>com.kniazkov</groupId>
+      <artifactId>json</artifactId>
+      <version>0.3</version>
     </dependency>
     <dependency>
       <groupId>guru.nidi</groupId>

src/main/java/org/cqfn/astranaut/core/Action.java

@@ -0,0 +1,33 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2024 Ivan Kniazkov
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package org.cqfn.astranaut.core;
+
+/**
+ * A node that represents an action that can be performed on another node.
+ * This type of nodes is necessary for the construction of difference trees.
+ *
+ * @since 1.1.0
+ */
+public interface Action extends DifferenceTreeItem {
+}

src/main/java/org/cqfn/astranaut/core/Adapter.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2023 Ivan Kniazkov
+ * Copyright (c) 2024 Ivan Kniazkov
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal

src/main/java/org/cqfn/astranaut/core/Builder.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2023 Ivan Kniazkov
+ * Copyright (c) 2024 Ivan Kniazkov
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal

src/main/java/org/cqfn/astranaut/core/ChildDescriptor.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2023 Ivan Kniazkov
+ * Copyright (c) 2024 Ivan Kniazkov
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal

src/main/java/org/cqfn/astranaut/core/ChildrenMapper.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2023 Ivan Kniazkov
+ * Copyright (c) 2024 Ivan Kniazkov
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal

src/main/java/org/cqfn/astranaut/core/Common.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2023 Ivan Kniazkov
+ * Copyright (c) 2024 Ivan Kniazkov
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal

src/main/java/org/cqfn/astranaut/core/Converter.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2023 Ivan Kniazkov
+ * Copyright (c) 2024 Ivan Kniazkov
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal

src/main/java/org/cqfn/astranaut/core/ConvertibleNode.java

@@ -1,7 +1,7 @@
 /*
  * The MIT License (MIT)
  *
- * Copyright (c) 2023 Ivan Kniazkov
+ * Copyright (c) 2024 Ivan Kniazkov
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal

src/main/java/org/cqfn/astranaut/core/Delete.java

@@ -0,0 +1,220 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2024 Ivan Kniazkov
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package org.cqfn.astranaut.core;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/**
+ * Action that deletes a child element.
+ *
+ * @since 1.1.0
+ */
+public final class Delete implements Action {
+    /**
+     * The type.
+     */
+    public static final Type TYPE = new DeleteType();
+
+    /**
+     * Child element.
+     */
+    private final Node child;
+
+    /**
+     * Constructor.
+     * @param child A child element that will be removed.
+     */
+    public Delete(final Node child) {
+        this.child = child;
+    }
+
+    @Override
+    public Node getBefore() {
+        return this.child;
+    }
+
+    @Override
+    public Node getAfter() {
+        return null;
+    }
+
+    @Override
+    public Fragment getFragment() {
+        return this.child.getFragment();
+    }
+
+    @Override
+    public Type getType() {
+        return Delete.TYPE;
+    }
+
+    @Override
+    public String getData() {
+        return "";
+    }
+
+    @Override
+    public int getChildCount() {
+        return 1;
+    }
+
+    @Override
+    public Node getChild(final int index) {
+        final Node node;
+        if (index == 0) {
+            node = this.child;
+        } else {
+            node = null;
+        }
+        return node;
+    }
+
+    /**
+     * Type of 'Delete' action.
+     *
+     * @since 1.1.0
+     */
+    private static final class DeleteType implements Type {
+        /**
+         * The 'Node' string.
+         */
+        private static final String NODE = "Node";
+
+        /**
+         * The 'ACTION' string.
+         */
+        private static final String ACTION = "Action";
+
+        /**
+         * The 'DELETE' string.
+         */
+        private static final String DELETE = "Delete";
+
+        /**
+         * The list of child descriptors.
+         */
+        private static final List<ChildDescriptor> CHILDREN =
+            Collections.singletonList(
+                new ChildDescriptor(
+                    DeleteType.NODE,
+                    false
+                )
+            );
+
+        /**
+         * Hierarchy.
+         */
+        private static final List<String> HIERARCHY =
+            Collections.unmodifiableList(
+                Arrays.asList(
+                    DeleteType.DELETE,
+                    DeleteType.ACTION
+                )
+            );
+
+        /**
+         * Properties.
+         */
+        private static final Map<String, String> PROPERTIES = Stream.of(
+            new String[][] {
+                {"color", "blue"},
+            }).collect(Collectors.toMap(data -> data[0], data -> data[1]));
+
+        @Override
+        public String getName() {
+            return DeleteType.DELETE;
+        }
+
+        @Override
+        public List<ChildDescriptor> getChildTypes() {
+            return DeleteType.CHILDREN;
+        }
+
+        @Override
+        public List<String> getHierarchy() {
+            return DeleteType.HIERARCHY;
+        }
+
+        @Override
+        public String getProperty(final String name) {
+            return DeleteType.PROPERTIES.getOrDefault(name, "");
+        }
+
+        @Override
+        public Builder createBuilder() {
+            return null;
+        }
+    }
+
+    /**
+     * Class for 'Delete' action construction.
+     *
+     * @since 1.1.0
+     */
+    public static final class Constructor implements Builder {
+        /**
+         * Child node.
+         */
+        private Node child;
+
+        @Override
+        public void setFragment(final Fragment fragment) {
+            // do nothing
+        }
+
+        @Override
+        public boolean setData(final String str) {
+            return str.isEmpty();
+        }
+
+        @Override
+        public boolean setChildrenList(final List<Node> list) {
+            boolean result = false;
+            if (list.size() == 1) {
+                this.child = list.get(0);
+                result = true;
+            }
+            return result;
+        }
+
+        @Override
+        public boolean isValid() {
+            return this.child != null;
+        }
+
+        @Override
+        public Node createNode() {
+            Node node = EmptyTree.INSTANCE;
+            if (this.isValid()) {
+                node = new Delete(this.child);
+            }
+            return node;
+        }
+    }
+}