Java tutorial
/** * Copyright 2017 Anton Johansson * * 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.antonjohansson.elasticsearchshell.domain.node; import static java.util.Collections.emptyMap; import static java.util.Objects.requireNonNull; import static org.apache.commons.lang3.builder.ToStringBuilder.reflectionToString; import static org.apache.commons.lang3.builder.ToStringStyle.SHORT_PREFIX_STYLE; import java.util.Map; import org.apache.commons.lang3.builder.EqualsBuilder; import org.apache.commons.lang3.builder.HashCodeBuilder; import com.antonjohansson.elasticsearchshell.common.ElasticsearchException; import com.fasterxml.jackson.annotation.JsonProperty; /** * Contains information about nodes. */ public class NodesInfo { private @JsonProperty("cluster_name") String clusterName = ""; private @JsonProperty("nodes") Map<String, Node> nodes = emptyMap(); public String getClusterName() { return clusterName; } public void setClusterName(String clusterName) { this.clusterName = clusterName; } public Map<String, Node> getNodes() { return nodes; } public void setNodes(Map<String, Node> nodes) { this.nodes = nodes; } /** * Gets a {@link Node node} by its name. * * @param name The name of the node to get. * @return Returns the node, if it was found. * @throws ElasticsearchException Thrown if no node was found with the given {@code name}. */ public Node getNodeByName(String name) { requireNonNull(name, "'name' cannot be null"); return nodes.values().stream().filter(node -> name.equals(node.getName())).findAny() .orElseThrow(() -> new ElasticsearchException("No node with name '" + name + "' was found")); } @Override public int hashCode() { return new HashCodeBuilder().append(clusterName).append(nodes).toHashCode(); } @Override public boolean equals(Object obj) { if (obj == null || obj.getClass() != getClass()) { return false; } if (obj == this) { return true; } NodesInfo that = (NodesInfo) obj; return new EqualsBuilder().append(this.clusterName, that.clusterName).append(this.nodes, that.nodes) .isEquals(); } @Override public String toString() { return reflectionToString(this, SHORT_PREFIX_STYLE); } }