1 files changed, 129 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/ovsdb/rfc/src/main/java/org/onosproject/ovsdb/rfc/schema/TableSchema.java b/framework/src/onos/protocols/ovsdb/rfc/src/main/java/org/onosproject/ovsdb/rfc/schema/TableSchema.java
new file mode 100644
index 00000000..248745dd
--- /dev/null
+++ b/framework/src/onos/protocols/ovsdb/rfc/src/main/java/org/onosproject/ovsdb/rfc/schema/TableSchema.java
@@ -0,0 +1,129 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed 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.onosproject.ovsdb.rfc.schema;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+
+import org.onosproject.ovsdb.rfc.schema.type.AtomicColumnType;
+import org.onosproject.ovsdb.rfc.schema.type.UuidBaseType;
+
+/**
+ * A schema for the table represented by table-schema, which consists of a set
+ * of columns.
+ */
+public final class TableSchema {
+
+    private final String name;
+    private final Map<String, ColumnSchema> columnSchemas;
+
+    /**
+     * Constructs a TableSchema object.
+     * @param name the name of table
+     * @param columnSchemas a map of ColumnSchema
+     */
+    public TableSchema(String name, Map<String, ColumnSchema> columnSchemas) {
+        checkNotNull(name, "name cannot be null");
+        checkNotNull(columnSchemas, "columnSchemas cannot be null");
+        this.name = name;
+        this.columnSchemas = columnSchemas;
+    }
+
+    /**
+     * Returns the name of table.
+     * @return the name of table
+     */
+    public String name() {
+        return name;
+    }
+
+    /**
+     * Returns a map of ColumnSchema.
+     * @return a map of ColumnSchema
+     */
+    public Map<String, ColumnSchema> columnSchemas() {
+        return this.columnSchemas;
+    }
+
+    /**
+     * Returns a set of column name.
+     * @return a set of column name
+     */
+    public Set<String> getColumnNames() {
+        return this.columnSchemas.keySet();
+    }
+
+    /**
+     * Determine whether contain the column.
+     * @param columnName column name
+     * @return boolean
+     */
+    public boolean hasColumn(String columnName) {
+        return this.getColumnNames().contains(columnName);
+    }
+
+    /**
+     * Returns the ColumnSchema whose name is the columnName.
+     * @param columnName column name
+     * @return ColumnSchema
+     */
+    public ColumnSchema getColumnSchema(String columnName) {
+        return this.columnSchemas.get(columnName);
+    }
+
+    /**
+     * Refer to RFC 7047 Section 3.2. generate initialization columns in each
+     * table namely _uuid and _version.
+     */
+    public void generateInitializationColumns() {
+        columnSchemas
+                .put("_uuid",
+                     new ColumnSchema("_uuid",
+                                      new AtomicColumnType(new UuidBaseType())));
+        columnSchemas
+                .put("_version",
+                     new ColumnSchema("_version",
+                                      new AtomicColumnType(new UuidBaseType())));
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, columnSchemas);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof TableSchema) {
+            final TableSchema other = (TableSchema) obj;
+            return Objects.equals(this.name, other.name)
+                    && Objects.equals(this.columnSchemas, other.columnSchemas);
+        }
+        return false;
+    }
+
+    @Override
+    public String toString() {
+        return toStringHelper(this).add("name", name)
+                .add("columnSchemas", columnSchemas).toString();
+    }
+}