Java tutorial
/** * 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 org.hyperledger.jackson; import com.fasterxml.jackson.core.JsonParser; import com.fasterxml.jackson.core.JsonToken; import com.fasterxml.jackson.databind.DeserializationContext; import com.fasterxml.jackson.databind.JsonMappingException; import com.fasterxml.jackson.databind.deser.std.StdScalarDeserializer; import org.hyperledger.common.HyperLedgerException; import org.hyperledger.common.MasterPublicKey; import java.io.IOException; public class MasterPublicKeyDeserializer extends StdScalarDeserializer<MasterPublicKey> { protected MasterPublicKeyDeserializer() { super(MasterPublicKey.class); } @Override public MasterPublicKey deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException { JsonToken t = jp.getCurrentToken(); if (t == JsonToken.VALUE_STRING) { try { String keyString = jp.getText().trim(); if (keyString.length() == 0) { return null; } return MasterPublicKey.parse(keyString); } catch (HyperLedgerException e) { throw JsonMappingException.from(jp, "Error deserializing extended key", e); } } throw ctxt.mappingException(handledType()); } }