com.proofpoint.discovery.client.announce.ServiceAnnouncement.java Source code

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Here is the source code for com.proofpoint.discovery.client.announce.ServiceAnnouncement.java

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/*
 * 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 com.proofpoint.discovery.client.announce;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Objects;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableMap;
import com.proofpoint.discovery.client.ServiceDescriptor;
import com.proofpoint.discovery.client.ServiceState;
import com.proofpoint.node.NodeInfo;

import java.util.Map;
import java.util.UUID;

import static com.proofpoint.discovery.client.ServiceDescriptor.serviceDescriptor;

public class ServiceAnnouncement {
    private final UUID id = UUID.randomUUID();
    private final String type;
    private final Map<String, String> properties;

    private ServiceAnnouncement(String type, Map<String, String> properties) {
        Preconditions.checkNotNull(type, "type is null");
        Preconditions.checkNotNull(properties, "properties is null");

        this.type = type;
        this.properties = ImmutableMap.copyOf(properties);
    }

    @JsonProperty
    public UUID getId() {
        return id;
    }

    @JsonProperty
    public String getType() {
        return type;
    }

    @JsonProperty
    public Map<String, String> getProperties() {
        return properties;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        ServiceAnnouncement that = (ServiceAnnouncement) o;

        if (!id.equals(that.id)) {
            return false;
        }

        return true;
    }

    @Override
    public int hashCode() {
        return id.hashCode();
    }

    @Override
    public String toString() {
        return Objects.toStringHelper(this).add("id", id).add("type", type).add("properties", properties)
                .toString();
    }

    public ServiceDescriptor toServiceDescriptor(NodeInfo nodeInfo) {
        return serviceDescriptor(type).setId(id).setNodeInfo(nodeInfo).setLocation(nodeInfo.getLocation())
                .setState(ServiceState.RUNNING).addProperties(properties).build();
    }

    public static ServiceAnnouncementBuilder serviceAnnouncement(String type) {
        return new ServiceAnnouncementBuilder(type);
    }

    public static class ServiceAnnouncementBuilder {
        private final String type;
        private final ImmutableMap.Builder<String, String> properties = ImmutableMap.builder();

        private ServiceAnnouncementBuilder(String type) {
            this.type = type;
        }

        public ServiceAnnouncementBuilder addProperty(String key, String value) {
            Preconditions.checkNotNull(key, "key is null");
            Preconditions.checkNotNull(value, "value is null");
            properties.put(key, value);
            return this;
        }

        public ServiceAnnouncementBuilder addProperties(Map<String, String> properties) {
            Preconditions.checkNotNull(properties, "properties is null");
            this.properties.putAll(properties);
            return this;
        }

        public ServiceAnnouncement build() {
            return new ServiceAnnouncement(type, properties.build());
        }
    }
}