com.couchbase.cbadmin.assets.NodeGroup.java Source code

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Here is the source code for com.couchbase.cbadmin.assets.NodeGroup.java

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/*
 * Copyright (C) 2013 Couchbase, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALING
 * IN THE SOFTWARE.
 */

package com.couchbase.cbadmin.assets;

import com.couchbase.cbadmin.client.RestApiException;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;

import java.net.URI;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

/**
 * A node group (or in sever parlance, a {@code serverGroup}
 * is a group of nodes designated to reside in the same physical
 * domain.
 *
 * The NodeGroup object is the unit of data for dealing with groups
 * within the {@link com.couchbase.cbadmin.client.CouchbaseAdmin} API.
 */
public final class NodeGroup {
    static private class Deserialized {
        String name;
        String uri;
        JsonArray nodes;
    }

    static private URI getFromString(String s) {
        if (s == null) {
            throw new IllegalArgumentException("Field was null");
        }
        return URI.create(s);
    }

    final private String name;
    final private URI uri;
    final private List<Node> nodes = new ArrayList<Node>();

    public NodeGroup(JsonElement json) throws RestApiException {
        Deserialized obj = new Gson().fromJson(json, Deserialized.class);

        if ((this.name = obj.name) == null) {
            throw new IllegalArgumentException("Malformed JSON");
        }

        this.uri = getFromString(obj.uri);
        if (obj.nodes == null) {
            throw new IllegalArgumentException("Node list was empty");
        }
        for (JsonElement e : obj.nodes) {
            nodes.add(new Node(e.getAsJsonObject()));
        }
    }

    public String getName() {
        return name;
    }

    public URI getUri() {
        return uri;
    }

    public Collection<Node> getNodes() {
        return nodes;
    }

    @Override
    public boolean equals(Object o) {
        if (o == this) {
            return true;
        }

        if (!(o instanceof NodeGroup)) {
            return false;
        }

        NodeGroup other = (NodeGroup) o;

        assert uri != null;
        assert other.uri != null;
        return uri.equals(other.uri);
    }

    @Override
    public int hashCode() {
        return uri != null ? uri.hashCode() : 0;
    }

    @Override
    public String toString() {
        return String.format("serverGroup '%s' => %s", name, uri);
    }
}