source: java/main/src/main/java/com/framsticks/core/ListChange.java @ 102

package com.framsticks.core;

import java.util.Arrays;
import java.util.Set;
import java.util.TreeSet;

import org.apache.commons.lang.StringUtils;

import com.framsticks.params.annotations.FramsClassAnnotation;
import com.framsticks.params.annotations.ParamAnnotation;
import com.framsticks.util.Misc;
import com.framsticks.util.lang.Strings;

/**
 * @author Piotr Sniegowski
 */
@FramsClassAnnotation(order = {"type", "pos", "id", "hint"})
public class ListChange {

        public static enum Action {
                Add,
                Remove,
                Modify
        }


        public ListChange(Action action, Integer position, String identifier, Object... hints) {
                this.action = action;
                this.position = position;
                this.identifier = identifier;
                if (hints.length != 0) {
                        this.hints = new TreeSet<>();
                        for (Object h : hints) {
                                this.hints.add(h.toString());
                        }
                }
        }

        /**
         *
         */
        public ListChange() {
        }

        public Action getAction() {
                return action;
        }

        public Integer getPosition() {
                return position;
        }

        public String getIdentifier() {
                return identifier;
        }


        public boolean hasHint(String hint) {
                if (hints == null) {
                        return false;
                }
                return hints.contains(hint);
        }


        public Action action = Action.Add;
        @ParamAnnotation(id = "pos", def = "-1")
        public Integer position;
        @ParamAnnotation(id = "id")
        public String identifier;

        protected Set<String> hints;

        @ParamAnnotation
        public String getHints() {
                return StringUtils.join(hints, ",");
        }

        @ParamAnnotation
        public void setHints(String hints) {
                if (!Strings.notEmpty(hints)) {
                        this.hints = null;
                        return;
                }
                this.hints = new TreeSet<>();
                this.hints.addAll(Arrays.asList(StringUtils.split(hints, ",")));
        }

        @ParamAnnotation
        public Integer getType() { return action.ordinal(); }
        @ParamAnnotation
        public void setType(Integer type) { action = Action.values()[type]; }

        public String getBestIdentifier() {
                if (Strings.notEmpty(identifier)) {
                        return identifier;
                }
                return position.toString();
        }

        @Override
        public String toString() {
                StringBuilder b = new StringBuilder();
                b.append(action).append(" ").append(identifier).append(" ").append(position);
                if (hints != null && !hints.isEmpty()) {
                        b.append(" ").append(getHints());
                }
                return b.toString();
        }

        @Override
        public boolean equals(Object object) {
                if (object instanceof ListChange) {
                        ListChange r = (ListChange) object;
                        return Misc.equals(action, r.action) && Misc.equals(position, r.position) && Misc.equals(identifier, r.identifier) && Misc.equals(hints, r.hints);
                }
                return false;
        }

}