Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.apache.olingo.client.core.edm.xml; import com.fasterxml.jackson.core.JsonParser; import com.fasterxml.jackson.core.JsonProcessingException; import com.fasterxml.jackson.core.JsonToken; import com.fasterxml.jackson.databind.DeserializationContext; import org.apache.commons.lang3.BooleanUtils; import org.apache.olingo.client.core.edm.xml.v4.AnnotationImpl; import org.apache.olingo.commons.api.edm.constants.ODataServiceVersion; import java.io.IOException; public class EnumTypeDeserializer extends AbstractEdmDeserializer<AbstractEnumType> { @Override protected AbstractEnumType doDeserialize(final JsonParser jp, final DeserializationContext ctxt) throws IOException, JsonProcessingException { final AbstractEnumType enumType = ODataServiceVersion.V30 == version ? new org.apache.olingo.client.core.edm.xml.v3.EnumTypeImpl() : new org.apache.olingo.client.core.edm.xml.v4.EnumTypeImpl(); for (; jp.getCurrentToken() != JsonToken.END_OBJECT; jp.nextToken()) { final JsonToken token = jp.getCurrentToken(); if (token == JsonToken.FIELD_NAME) { if ("Name".equals(jp.getCurrentName())) { enumType.setName(jp.nextTextValue()); } else if ("UnderlyingType".equals(jp.getCurrentName())) { enumType.setUnderlyingType(jp.nextTextValue()); } else if ("IsFlags".equals(jp.getCurrentName())) { enumType.setFlags(BooleanUtils.toBoolean(jp.nextTextValue())); } else if ("Member".equals(jp.getCurrentName())) { jp.nextToken(); if (enumType instanceof org.apache.olingo.client.core.edm.xml.v3.EnumTypeImpl) { ((org.apache.olingo.client.core.edm.xml.v3.EnumTypeImpl) enumType).getMembers() .add(jp.readValueAs(org.apache.olingo.client.core.edm.xml.v3.MemberImpl.class)); } else { ((org.apache.olingo.client.core.edm.xml.v4.EnumTypeImpl) enumType).getMembers() .add(jp.readValueAs(org.apache.olingo.client.core.edm.xml.v4.MemberImpl.class)); } } else if ("Annotation".equals(jp.getCurrentName())) { jp.nextToken(); ((org.apache.olingo.client.core.edm.xml.v4.EnumTypeImpl) enumType).getAnnotations() .add(jp.readValueAs(AnnotationImpl.class)); } } } return enumType; } }