Java tutorial
/** * Copyright (C) 2012 - 2013 Xeiam LLC http://xeiam.com * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies * of the Software, and to permit persons to whom the Software is furnished to do * so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package com.xeiam.xchange.utils.jackson; import java.io.IOException; import com.fasterxml.jackson.core.JsonParser; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.databind.DeserializationContext; import com.fasterxml.jackson.databind.JsonDeserializer; import com.fasterxml.jackson.databind.exc.InvalidFormatException; /** * @author Matija Mazi */ public abstract class BooleanDeserializer extends JsonDeserializer<Boolean> { private String trueValue, falseValue; protected BooleanDeserializer(String trueValue, String falseValue) { this.trueValue = trueValue; this.falseValue = falseValue; } @Override public Boolean deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException, JsonProcessingException { String valueAsString = jp.getValueAsString(); if (trueValue.equals(valueAsString)) { return true; } else if (falseValue.equals(valueAsString)) { return false; } throw new InvalidFormatException( String.format("Unrecognized value; expected %s or %s: %s", trueValue, falseValue, valueAsString), valueAsString, Boolean.class); } }