diff options
Diffstat (limited to 'framework/src/onos/protocols/ovsdb/rfc/src/main/java/org/onosproject/ovsdb/rfc/notation/Condition.java')
-rw-r--r-- | framework/src/onos/protocols/ovsdb/rfc/src/main/java/org/onosproject/ovsdb/rfc/notation/Condition.java | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/ovsdb/rfc/src/main/java/org/onosproject/ovsdb/rfc/notation/Condition.java b/framework/src/onos/protocols/ovsdb/rfc/src/main/java/org/onosproject/ovsdb/rfc/notation/Condition.java new file mode 100644 index 00000000..cbf35424 --- /dev/null +++ b/framework/src/onos/protocols/ovsdb/rfc/src/main/java/org/onosproject/ovsdb/rfc/notation/Condition.java @@ -0,0 +1,123 @@ +/* + * 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.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(); + } +} |