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/*
* 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();
}
}
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