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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.netbeans.modules.docker.api;

import java.util.EventListener;
import java.util.EventObject;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;

/**
 *
 * @author Petr Hejl
 */
public final class DockerEvent extends EventObject {

    public enum Status {

        // container events for API 1.21: attach, commit, copy, create, destroy, die, exec_create, exec_start, export, kill, oom, pause, rename, resize, restart, start, stop, top, unpause
        ATTACH("attach", true),
        // commit is technically container event, but it creates image
        COMMIT("commit", false),
        COPY("copy", true),
        CREATE("create", true),
        DESTROY("destroy", true),
        DIE("die", true),
        EXEC_CREATE("exec_create", true),
        EXEC_START("exec_start", true),
        EXPORT("export", true),
        KILL("kill", true),
        OOM("oom", true),
        PAUSE("pause", true),
        RENAME("rename", true),
        RESIZE("resize", true),
        RESTART("restart", true),
        START("start", true),
        STOP("stop", true),
        TOP("top", true),
        UNPAUSE("unpause", true),

        // image events for API 1.21: delete, import, pull, push, tag, untag
        DELETE("delete", false),
        IMPORT("import", false),
        PULL("pull", false),
        PUSH("push", false),
        TAG("tag", false),
        UNTAG("untag", false);

        private static final Map VALUES = new HashMap<>();

        static {
            for (Status s : Status.values()) {
                VALUES.put(s.getText(), s);
            }
        }

        private final String text;

        private final boolean container;

        private Status(String text, boolean container) {
            this.text = text;
            this.container = container;
        }
        
        public static Status parse(String text) {
            return VALUES.get(text);
        }

        public String getText() {
            return text;
        }

        public boolean isContainer() {
            return container;
        }
    }

    private final DockerInstance instance;

    private final Status status;

    private final String id;

    private final String from;

    private final long time;

    DockerEvent(DockerInstance instance, Status status, String id, String from, long time) {
        super(instance);
        this.instance = instance;
        this.status = status;
        this.id = id;
        this.from = from;
        this.time = time;
    }

    public Status getStatus() {
        return status;
    }

    public String getId() {
        return id;
    }

    public String getFrom() {
        return from;
    }

    public long getTime() {
        return time;
    }

    @Override
    public DockerInstance getSource() {
        return instance;
    }

    public boolean equalsIgnoringTime(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final DockerEvent other = (DockerEvent) obj;
        if (!Objects.equals(this.status, other.status)) {
            return false;
        }
        if (!Objects.equals(this.id, other.id)) {
            return false;
        }
        if (!Objects.equals(this.from, other.from)) {
            return false;
        }
        return true;
    }
    
    @Override
    public String toString() {
        return "DockerEvent{" + "status=" + status + ", id=" + id + ", from=" + from + ", time=" + time + '}';
    }

    @Override
    public int hashCode() {
        int hash = 3;
        hash = 73 * hash + Objects.hashCode(this.status);
        hash = 73 * hash + Objects.hashCode(this.id);
        hash = 73 * hash + Objects.hashCode(this.from);
        hash = 73 * hash + (int) (this.time ^ (this.time >>> 32));
        return hash;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final DockerEvent other = (DockerEvent) obj;
        if (this.time != other.time) {
            return false;
        }
        if (!Objects.equals(this.status, other.status)) {
            return false;
        }
        if (!Objects.equals(this.id, other.id)) {
            return false;
        }
        if (!Objects.equals(this.from, other.from)) {
            return false;
        }
        return true;
    }

    public static interface Listener extends EventListener {

        void onEvent(DockerEvent event);

    }
}