| /* |
| * Copyright 2015-present Open Networking Foundation |
| * |
| * 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.notation; |
| |
| import static com.google.common.base.MoreObjects.toStringHelper; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import java.util.Objects; |
| |
| import org.onosproject.ovsdb.rfc.notation.json.ConditionSerializer; |
| |
| import com.fasterxml.jackson.databind.annotation.JsonSerialize; |
| |
| /** |
| * Condition is a 3-element JSON array of the form [column, function, value] |
| * that represents a test on a column value. |
| */ |
| @JsonSerialize(using = ConditionSerializer.class) |
| public final class Condition { |
| /** |
| * Function of Notation. Refer to RFC 7047 Section 5.1. |
| */ |
| public enum Function { |
| LESS_THAN("<"), LESS_THAN_OR_EQUALS("<="), EQUALS("=="), |
| NOT_EQUALS("!="), GREATER_THAN(">"), GREATER_THAN_OR_EQUALS(">="), |
| INCLUDES("includes"), EXCLUDES("excludes"); |
| |
| private final String function; |
| |
| private Function(String function) { |
| this.function = function; |
| } |
| |
| /** |
| * Returns the function for Function. |
| * @return the function |
| */ |
| public String function() { |
| return function; |
| } |
| } |
| |
| private final String column; |
| private final Function function; |
| private final Object value; |
| |
| /** |
| * Constructs a Condition object. |
| * @param column the column name |
| * @param function Function |
| * @param value column data |
| */ |
| public Condition(String column, Function function, Object value) { |
| checkNotNull(column, "column cannot be null"); |
| checkNotNull(function, "function cannot be null"); |
| checkNotNull(value, "value cannot be null"); |
| this.column = column; |
| this.function = function; |
| this.value = value; |
| } |
| |
| /** |
| * Returns column name. |
| * @return column name |
| */ |
| public String getColumn() { |
| return column; |
| } |
| |
| /** |
| * Returns Function. |
| * @return Function |
| */ |
| public Function getFunction() { |
| return function; |
| } |
| |
| /** |
| * Returns column data. |
| * @return column data |
| */ |
| public Object getValue() { |
| return value; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(column, function, value); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof Condition) { |
| final Condition other = (Condition) obj; |
| return Objects.equals(this.column, other.column) |
| && Objects.equals(this.function, other.function) |
| && Objects.equals(this.value, other.value); |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return toStringHelper(this).add("column", column) |
| .add("function", function).add("value", value).toString(); |
| } |
| } |