com.cognitect.transit.impl.SymbolImpl Maven / Gradle / Ivy

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Transit is a data format and a set of libraries for conveying values between applications written in different languages. This library provides support for marshalling Transit data to/from Java.

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// All rights reserved.
// Copyright (c) Cognitect, Inc.

package com.cognitect.transit.impl;

import com.cognitect.transit.Named;
import com.cognitect.transit.Symbol;

public class SymbolImpl implements Symbol, Comparable, Named {

    final String ns;
    final String name;
    String _str;

    public SymbolImpl(String nsname) {
        int i = nsname.indexOf('/');
        if(i == -1 || nsname.equals("/")) {
            ns = null;
            name = nsname.intern();
        } else {
            ns = nsname.substring(0, i);
            name = nsname.substring(i + 1);
        }
    }

    @Override
    public String toString() {
        if(_str == null){
            if(ns != null)
                _str = (ns + "/" + name).intern();
            else
                _str = name;
        }
        return _str;
    }

    @Override
    public String getName() {
        return name;
    }

    @Override
    public String getNamespace() {
        return ns;
    }

    @Override
    public String getValue() { return toString(); }

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

        if(o instanceof SymbolImpl && ((SymbolImpl)o).getValue().equals(getValue()))
            return true;
        else
            return false;
    }

    @Override
    public int hashCode() {
        return 19 * getValue().hashCode();
    }

    @Override
    public int compareTo(Symbol symbol) {
        return getValue().compareTo(((SymbolImpl)symbol).getValue());
    }
}