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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.type;
import java.util.Set;
import org.onosproject.ovsdb.rfc.exception.AbnormalJsonNodeException;
import org.onosproject.ovsdb.rfc.schema.type.UuidBaseType.RefType;
import org.onosproject.ovsdb.rfc.utils.ObjectMapperUtil;
import com.fasterxml.jackson.databind.JsonNode;
import com.google.common.collect.Sets;
/**
* BaseType Factory class.
*/
public final class BaseTypeFactory {
/**
* Constructs a BaseTypeFactory object. This class should not be
* instantiated.
*/
private BaseTypeFactory() {
}
/**
* Create a BaseType from the JsonNode.
* @param baseTypeJson the BaseType JsonNode
* @param keyorval the key node or value node
* @return BaseType
*/
public static BaseType getBaseTypeFromJson(JsonNode baseTypeJson, String keyorval) {
if (baseTypeJson.isValueNode()) {
String type = baseTypeJson.asText().trim();
return fromTypeStr(type);
} else {
if (!baseTypeJson.has(keyorval)) {
String message = "Abnormal BaseType JsonNode, it should contain 'key' or 'value' node but was not found"
+ ObjectMapperUtil.convertToString(baseTypeJson);
throw new AbnormalJsonNodeException(message);
}
return fromJsonNode(baseTypeJson.get(keyorval));
}
}
/**
* Get BaseType by the type value of JsonNode.
* @param type the type value of JsonNode
* @return BaseType
*/
private static BaseType fromTypeStr(String type) {
switch (type) {
case "boolean":
return new BooleanBaseType();
case "integer":
return new IntegerBaseType();
case "real":
return new RealBaseType();
case "string":
return new StringBaseType();
case "uuid":
return new UuidBaseType();
default:
return null;
}
}
/**
* json like "string" or json like {"type" : "string", "enum": ["set",
* ["access", "native-tagged"]]}" for key or value.
* @param type JsonNode
*/
private static BaseType fromJsonNode(JsonNode type) {
if (type.isTextual()) {
return fromTypeStr(type.asText());
} else if (type.isObject() && type.has("type")) {
String typeStr = type.get("type").asText();
switch (typeStr) {
case "boolean":
return new BooleanBaseType();
case "integer":
return getIntegerBaseType(type);
case "real":
return getRealBaseType(type);
case "string":
return getStringBaseType(type);
case "uuid":
return getUuidBaseType(type);
default:
return null;
}
}
return null;
}
/**
* Get IntegerBaseType by the type value of JsonNode which contains the
* constraints.
* @param type the type value of JsonNode
* @return IntegerBaseType
*/
private static IntegerBaseType getIntegerBaseType(JsonNode type) {
int min = Integer.MIN_VALUE;
int max = Integer.MAX_VALUE;
Set<Integer> enums = Sets.newHashSet();
JsonNode node = type.get("minInteger");
if (node != null) {
min = node.asInt();
}
node = type.get("maxInteger");
if (node != null) {
max = node.asInt();
}
if (type.has("enum")) {
JsonNode anEnum = type.get("enum").get(1);
for (JsonNode n : anEnum) {
enums.add(n.asInt());
}
}
return new IntegerBaseType(min, max, enums);
}
/**
* Get RealBaseType by the type value of JsonNode which contains the
* constraints.
* @param type the type value of JsonNode
* @return RealBaseType
*/
private static RealBaseType getRealBaseType(JsonNode type) {
double min = Double.MIN_VALUE;
double max = Double.MAX_VALUE;
Set<Double> enums = Sets.newHashSet();
JsonNode node = type.get("minReal");
if (node != null) {
min = node.asDouble();
}
node = type.get("maxReal");
if (node != null) {
max = node.asDouble();
}
if (type.has("enum")) {
JsonNode anEnum = type.get("enum").get(1);
for (JsonNode n : anEnum) {
enums.add(n.asDouble());
}
}
return new RealBaseType(min, max, enums);
}
/**
* Get StringBaseType by the type value of JsonNode which contains the
* constraints.
* @param type the type value of JsonNode
* @return StringBaseType
*/
private static StringBaseType getStringBaseType(JsonNode type) {
int minLength = Integer.MIN_VALUE;
int maxLength = Integer.MAX_VALUE;
Set<String> enums = Sets.newHashSet();
JsonNode node = type.get("minLength");
if (node != null) {
minLength = node.asInt();
}
node = type.get("maxLength");
if (node != null) {
maxLength = node.asInt();
}
if (type.has("enum")) {
JsonNode enumVal = type.get("enum");
if (enumVal.isArray()) {
JsonNode anEnum = enumVal.get(1);
for (JsonNode n : anEnum) {
enums.add(n.asText());
}
} else if (enumVal.isTextual()) {
enums.add(enumVal.asText());
}
}
return new StringBaseType(minLength, maxLength, enums);
}
/**
* Get UuidBaseType by the type value of JsonNode which contains the
* constraints.
* @param type the type value of JsonNode
* @return UuidBaseType
*/
private static UuidBaseType getUuidBaseType(JsonNode type) {
String refTable = null;
String refType = RefType.STRONG.refType();
JsonNode node = type.get("refTable");
if (node != null) {
refTable = node.asText();
}
node = type.get("refType");
if (node != null) {
refType = node.asText();
}
return new UuidBaseType(refTable, refType);
}
}
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