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 com.msopentech.odatajclient.engine.metadata.edm; 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 com.msopentech.odatajclient.engine.metadata.edm.v4.Annotation; import com.msopentech.odatajclient.engine.utils.ODataVersion; import java.io.IOException; import org.apache.commons.lang3.BooleanUtils; public class EntityTypeDeserializer extends AbstractEdmDeserializer<AbstractEntityType> { @Override protected AbstractEntityType doDeserialize(final JsonParser jp, final DeserializationContext ctxt) throws IOException, JsonProcessingException { final AbstractEntityType entityType = ODataVersion.V3 == client.getWorkingVersion() ? new com.msopentech.odatajclient.engine.metadata.edm.v3.EntityType() : new com.msopentech.odatajclient.engine.metadata.edm.v4.EntityType(); for (; jp.getCurrentToken() != JsonToken.END_OBJECT; jp.nextToken()) { final JsonToken token = jp.getCurrentToken(); if (token == JsonToken.FIELD_NAME) { if ("Name".equals(jp.getCurrentName())) { entityType.setName(jp.nextTextValue()); } else if ("Abstract".equals(jp.getCurrentName())) { entityType.setAbstractEntityType(BooleanUtils.toBoolean(jp.nextTextValue())); } else if ("BaseType".equals(jp.getCurrentName())) { entityType.setBaseType(jp.nextTextValue()); } else if ("OpenType".equals(jp.getCurrentName())) { entityType.setOpenType(BooleanUtils.toBoolean(jp.nextTextValue())); } else if ("HasStream".equals(jp.getCurrentName())) { entityType.setHasStream(BooleanUtils.toBoolean(jp.nextTextValue())); } else if ("Key".equals(jp.getCurrentName())) { jp.nextToken(); entityType.setKey(jp.getCodec().readValue(jp, EntityKey.class)); } else if ("Property".equals(jp.getCurrentName())) { jp.nextToken(); if (entityType instanceof com.msopentech.odatajclient.engine.metadata.edm.v3.EntityType) { ((com.msopentech.odatajclient.engine.metadata.edm.v3.EntityType) entityType).getProperties() .add(jp.getCodec().readValue(jp, com.msopentech.odatajclient.engine.metadata.edm.v3.Property.class)); } else { ((com.msopentech.odatajclient.engine.metadata.edm.v4.EntityType) entityType).getProperties() .add(jp.getCodec().readValue(jp, com.msopentech.odatajclient.engine.metadata.edm.v4.Property.class)); } } else if ("NavigationProperty".equals(jp.getCurrentName())) { jp.nextToken(); if (entityType instanceof com.msopentech.odatajclient.engine.metadata.edm.v3.EntityType) { ((com.msopentech.odatajclient.engine.metadata.edm.v3.EntityType) entityType) .getNavigationProperties().add(jp.getCodec().readValue(jp, com.msopentech.odatajclient.engine.metadata.edm.v3.NavigationProperty.class)); } else { ((com.msopentech.odatajclient.engine.metadata.edm.v4.EntityType) entityType) .getNavigationProperties().add(jp.getCodec().readValue(jp, com.msopentech.odatajclient.engine.metadata.edm.v4.NavigationProperty.class)); } } else if ("Annotation".equals(jp.getCurrentName())) { jp.nextToken(); ((com.msopentech.odatajclient.engine.metadata.edm.v4.EntityType) entityType) .setAnnotation(jp.getCodec().readValue(jp, Annotation.class)); } } } return entityType; } }