Refactor ColumnType

[ovsdb.git] / library / impl / src / main / java / org / opendaylight / ovsdb / lib / schema / KeyValuedColumnType.java

diff --git a/library/impl/src/main/java/org/opendaylight/ovsdb/lib/schema/KeyValuedColumnType.java b/library/impl/src/main/java/org/opendaylight/ovsdb/lib/schema/KeyValuedColumnType.java
new file mode 100644 (file)
index 0000000..a75d0fb
--- /dev/null
+++ b/library/impl/src/main/java/org/opendaylight/ovsdb/lib/schema/KeyValuedColumnType.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2014, 2015 EBay Software Foundation and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.ovsdb.lib.schema;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import org.opendaylight.ovsdb.lib.notation.OvsdbMap;
+
+final class KeyValuedColumnType extends ColumnType {
+    private final BaseType keyType;
+
+    private KeyValuedColumnType(final BaseType keyType, final BaseType valueType, final long min, final long max) {
+        super(valueType, min, max);
+        this.keyType = keyType;
+    }
+
+    /**
+     * Creates a ColumnType from the JsonNode if the implementation knows how to, returns null otherwise.
+     *
+     * @param json the JSONNode object that needs to converted
+     * @return a valid SubType or Null (if the JsonNode does not represent the subtype)
+     */
+    static KeyValuedColumnType fromJsonNode(final JsonNode json) {
+        if (json.isValueNode() || !json.has("value")) {
+            return null;
+        }
+        BaseType jsonKeyType = BaseType.fromJson(json, "key");
+        BaseType valueType = BaseType.fromJson(json, "value");
+
+        return new KeyValuedColumnType(jsonKeyType, valueType, minFromJson(json), maxFromJson(json));
+    }
+
+    @Override
+    public Object valueFromJson(final JsonNode node) {
+        if (node.isArray() && node.size() == 2) {
+            if (node.get(0).isTextual() && "map".equals(node.get(0).asText())) {
+                OvsdbMap<Object, Object> map = new OvsdbMap<>();
+                for (JsonNode pairNode : node.get(1)) {
+                    if (pairNode.isArray() && node.size() == 2) {
+                        Object key = keyType.toValue(pairNode.get(0));
+                        Object value = getBaseType().toValue(pairNode.get(1));
+                        map.put(key, value);
+                    }
+                }
+                return map;
+            } else if (node.size() == 0) {
+                return null;
+            }
+        }
+        return null;
+    }
+
+    @Override
+    public String toString() {
+        return "KeyValuedColumnType [keyType=" + keyType + " " + super.toString() + "]";
+    }
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = super.hashCode();
+        result = prime * result
+                + (keyType == null ? 0 : keyType.hashCode());
+        return result;
+    }
+
+    @Override
+    public boolean equals(final Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (!super.equals(obj)) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        KeyValuedColumnType other = (KeyValuedColumnType) obj;
+        if (keyType == null) {
+            if (other.keyType != null) {
+                return false;
+            }
+        } else if (!keyType.equals(other.keyType)) {
+            return false;
+        }
+        return true;
+    }
+}
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