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/*
* Copyright 2008 ZXing authors
*
* 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 com.google.zxing.common;
/**
* Superclass of classes encapsulating types ECIs, according to "Extended Channel Interpretations"
* 5.3 of ISO 18004.
*
* @author Sean Owen
*/
public abstract class ECI {
private final int value;
ECI(int value) {
this.value = value;
}
public int getValue() {
return value;
}
/**
* @param value ECI value
* @return ECI representing ECI of given value, or null if it is legal but unsupported
* @throws IllegalArgumentException if ECI value is invalid
*/
public static ECI getECIByValue(int value) {
if (value < 0 || value > 999999) {
throw new IllegalArgumentException("Bad ECI value: " + value);
}
if (value < 900) { // Character set ECIs use 000000 - 000899
return CharacterSetECI.getCharacterSetECIByValue(value);
}
return null;
}
}
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