private final String type;
private final String fullName;
- public ShardIdentifier(String shardName, MemberName memberName, String type) {
+ private ShardIdentifier(String shardName, MemberName memberName, String type) {
+ this.shardName = Preconditions.checkNotNull(shardName, "shardName should not be null");
+ this.memberName = Preconditions.checkNotNull(memberName, "memberName should not be null");
+ this.type = Preconditions.checkNotNull(type, "type should not be null");
- Preconditions.checkNotNull(shardName, "shardName should not be null");
- Preconditions.checkNotNull(memberName, "memberName should not be null");
- Preconditions.checkNotNull(type, "type should not be null");
+ fullName = memberName.getName() + "-shard-" + shardName + "-" + type;
+ }
+
+ public static ShardIdentifier create(final String shardName, final MemberName memberName, final String type) {
+ return new ShardIdentifier(shardName, memberName, type);
+ }
- this.shardName = shardName;
- this.memberName = memberName;
- this.type = type;
+ public static ShardIdentifier fromShardIdString(final String shardIdString) {
+ final Matcher matcher = PATTERN.matcher(shardIdString);
+ Preconditions.checkArgument(matcher.matches(), "Invalid shard id \"%s\"", shardIdString);
- fullName = new StringBuilder(memberName.getName()).append("-shard-").append(shardName).append("-")
- .append(type).toString();
+ return new ShardIdentifier(matcher.group(2), MemberName.forName(matcher.group(1)), matcher.group(3));
}
@Override
- public boolean equals(Object o) {
- if (this == o) {
+ public boolean equals(Object obj) {
+ if (this == obj) {
return true;
}
- if (o == null || getClass() != o.getClass()) {
+ if (obj == null || getClass() != obj.getClass()) {
return false;
}
- ShardIdentifier that = (ShardIdentifier) o;
+ ShardIdentifier that = (ShardIdentifier) obj;
if (!memberName.equals(that.memberName)) {
return false;
@Override
public String toString() {
- //ensure the output of toString matches the pattern above
+ // ensure the output of toString matches the pattern above
return fullName;
}
- public static Builder builder(){
- return new Builder();
- }
-
public String getShardName() {
return shardName;
}
private MemberName memberName;
private String type;
- public ShardIdentifier build(){
+ public ShardIdentifier build() {
return new ShardIdentifier(shardName, memberName, type);
}
- public Builder shardName(String shardName){
- this.shardName = shardName;
+ public Builder shardName(String newShardName) {
+ this.shardName = newShardName;
return this;
}
- public Builder memberName(MemberName memberName){
- this.memberName = memberName;
+ public Builder memberName(MemberName newMemberName) {
+ this.memberName = newMemberName;
return this;
}
- public Builder type(String type){
- this.type = type;
+ public Builder type(String newType) {
+ this.type = newType;
return this;
}
- public Builder fromShardIdString(String shardId){
+ public Builder fromShardIdString(String shardId) {
Matcher matcher = PATTERN.matcher(shardId);
if (matcher.matches()) {