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Core services for Usergrid system.
/*******************************************************************************
* Copyright 2012 Apigee Corporation
*
* 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.usergrid.persistence;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.usergrid.utils.UUIDUtils;
public class Identifier {
public enum Type {
UUID, NAME, EMAIL
}
final Type type;
final Object value;
static Pattern emailRegEx = Pattern
.compile("[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,4}");
static Pattern nameRegEx = Pattern.compile("[a-zA-Z0-9_\\-./]*");
private Identifier(Type type, Object value) {
this.type = type;
this.value = value;
}
public static Identifier from(Object obj) {
if (obj == null) {
return null;
}
if (obj instanceof UUID) {
return new Identifier(Type.UUID, obj);
}
if (obj instanceof String) {
UUID uuid = UUIDUtils.tryGetUUID((String) obj);
if (uuid != null) {
return new Identifier(Type.UUID, uuid);
}
Matcher m = emailRegEx.matcher((String) obj);
if (m.matches()) {
return new Identifier(Type.EMAIL, ((String) obj).toLowerCase());
}
m = nameRegEx.matcher((String) obj);
if (m.matches()) {
return new Identifier(Type.NAME, ((String) obj).toLowerCase());
}
}
return null;
}
public static Identifier fromUUID(UUID uuid) {
if (uuid == null) {
return null;
}
return new Identifier(Type.UUID, uuid);
}
public static Identifier fromName(String name) {
if (name == null) {
return null;
}
return new Identifier(Type.NAME, name);
}
public static Identifier fromEmail(String email) {
if (email == null) {
return null;
}
return new Identifier(Type.EMAIL, email);
}
public UUID getUUID() {
if (type != Type.UUID) {
return null;
}
return (UUID) value;
}
public boolean isUUID() {
return type == Type.UUID;
}
public String getEmail() {
if (type != Type.EMAIL) {
return null;
}
return (String) value;
}
public boolean isEmail() {
return type == Type.EMAIL;
}
public String getName() {
if (type != Type.NAME) {
return null;
}
return (String) value;
}
public boolean isName() {
return type == Type.NAME;
}
@Override
public String toString() {
return value.toString();
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((type == null) ? 0 : type.hashCode());
result = prime * result + ((value == null) ? 0 : value.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
Identifier other = (Identifier) obj;
if (type != other.type) {
return false;
}
if (value == null) {
if (other.value != null) {
return false;
}
} else if (!value.equals(other.value)) {
return false;
}
return true;
}
public static List fromList(List l) {
List identifiers = null;
if ((l != null) && (l.size() > 0)) {
for (String s : l) {
Identifier identifier = Identifier.from(s);
if (identifier != null) {
if (identifiers == null) {
identifiers = new ArrayList();
}
identifiers.add(identifier);
}
}
}
return identifiers;
}
}