eu.griend.grpf.service.NodeService.java Source code

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Here is the source code for eu.griend.grpf.service.NodeService.java

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/*
 * Copyright (C) 2017 C.A. van de Griend <c.vande.griend@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package eu.griend.grpf.service;

import java.util.LinkedList;
import java.util.List;
import java.util.UUID;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

import eu.griend.grpf.entity.NodeEntity;

@Service
public class NodeService {
    private Logger logger = LoggerFactory.getLogger(NodeService.class);

    public List<NodeEntity> nodes = null;

    public NodeService() {
        this.nodes = new LinkedList<NodeEntity>();
    }

    public List<NodeEntity> getAllNodes() {
        return this.nodes;
    }

    public void createNode(NodeEntity node) {
        if (this.nodes.contains(node)) {
            throw new IllegalArgumentException(node.toString());
        }

        this.nodes.add(node);

        this.logger.info("create node: {}", node.getUUID().toString());
    }

    public NodeEntity readNode(UUID uuid) {
        NodeEntity node = null;
        boolean found = false;

        for (int n = 0; n < this.nodes.size(); n++) {
            if (uuid.equals(this.nodes.get(n).getUUID())) {
                node = nodes.get(n);
                found = true;
                break;
            }
        }

        if (!found) {
            throw new IllegalArgumentException(uuid.toString());
        }

        this.logger.debug("read node: {}", uuid.toString());

        return node;
    }

    public NodeEntity readNode(String hostname) {
        NodeEntity node = null;
        boolean found = false;

        for (int n = 0; n < this.nodes.size(); n++) {
            if (hostname.equals(this.nodes.get(n).getHostname())) {
                node = nodes.get(n);
                found = true;
                break;
            }
        }

        if (!found) {
            throw new IllegalArgumentException(hostname);
        }

        this.logger.debug("read node: {}", node.getUUID().toString());

        return node;
    }

    public void updateNode(UUID uuid, NodeEntity node) {
        boolean found = false;

        for (int n = 0; n < this.nodes.size(); n++) {
            if (uuid.equals(this.nodes.get(n).getUUID())) {
                this.nodes.set(n, node);
                found = true;
                break;
            }
        }

        if (!found) {
            throw new IllegalArgumentException(uuid.toString());
        }

        this.logger.info("update node: {}", uuid.toString());
    }

    public void deleteNode(UUID uuid) {
        boolean found = false;

        for (int n = 0; n < this.nodes.size(); n++) {
            if (uuid.equals(this.nodes.get(n).getUUID())) {
                this.nodes.remove(n);
                found = true;
                break;
            }
        }

        if (!found) {
            throw new IllegalArgumentException(uuid.toString());
        }

        this.logger.info("delete node: {}", uuid.toString());
    }
}