/* * Copyright 2018 Daniel Gredler * * 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 uk.org.okapibarcode.util; import java.nio.charset.Charset; import java.nio.charset.UnsupportedCharsetException; public class EciMode { public static final EciMode NONE = new EciMode(-1, null); public final int mode; public final Charset charset; private EciMode(int mode, Charset charset) { this.mode = mode; this.charset = charset; } public static EciMode of(String data, String charsetName, int mode) { try { Charset charset = Charset.forName(charsetName); if (charset.canEncode() && charset.newEncoder().canEncode(data)) { return new EciMode(mode, charset); } else { return NONE; } } catch (UnsupportedCharsetException e) { return NONE; } } public EciMode or(String data, String charsetName, int mode) { if (!this.equals(NONE)) { return this; } else { return of(data, charsetName, mode); } } @Override public boolean equals(Object other) { return other instanceof EciMode && ((EciMode) other).mode == this.mode; } @Override public int hashCode() { return Integer.valueOf(mode).hashCode(); } @Override public String toString() { return "EciMode[mode=" + mode + ", charset=" + charset + "]"; } }