Java tutorial
/* * Copyright 2010 Proofpoint, Inc. * * 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 io.airlift.discovery; import com.fasterxml.jackson.annotation.JsonProperty; import com.google.common.base.Preconditions; import com.google.common.collect.ImmutableSet; import javax.annotation.concurrent.Immutable; import java.util.Set; @Immutable public class Services { private final String environment; private final Set<Service> services; public Services(String environment, Set<Service> services) { Preconditions.checkNotNull(environment, "environment is null"); Preconditions.checkNotNull(services, "services is null"); this.environment = environment; this.services = ImmutableSet.copyOf(services); } @JsonProperty public String getEnvironment() { return environment; } @JsonProperty public Set<Service> getServices() { return services; } @Override public boolean equals(Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } Services services1 = (Services) o; if (!environment.equals(services1.environment)) { return false; } if (!services.equals(services1.services)) { return false; } return true; } @Override public int hashCode() { int result = environment.hashCode(); result = 31 * result + services.hashCode(); return result; } @Override public String toString() { return "Services{" + "environment='" + environment + '\'' + ", services=" + services + '}'; } }