@Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof DataCenterInfo)) {
            return false;
        }
        final DataCenterInfo that = (DataCenterInfo) o;
        return name.equals(that.name) && Objects.equal(metadata, that.metadata);
    }
Returns the metadata associated with the object.

@return a map of key-value pairs representing the metadata
eureka/src/main/java/com/linecorp/armeria/common/eureka/DataCenterInfo.java