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.api.edm.xml.v3.ParameterMode; import org.apache.olingo.client.core.edm.xml.v4.AnnotationImpl; import org.apache.olingo.commons.api.edm.constants.ODataServiceVersion; import org.apache.olingo.commons.api.edm.geo.SRID; import java.io.IOException; public class ParameterDeserializer extends AbstractEdmDeserializer<AbstractParameter> { @Override protected AbstractParameter doDeserialize(final JsonParser jp, final DeserializationContext ctxt) throws IOException, JsonProcessingException { final AbstractParameter parameter = ODataServiceVersion.V30 == version ? new org.apache.olingo.client.core.edm.xml.v3.ParameterImpl() : new org.apache.olingo.client.core.edm.xml.v4.ParameterImpl(); for (; jp.getCurrentToken() != JsonToken.END_OBJECT; jp.nextToken()) { final JsonToken token = jp.getCurrentToken(); if (token == JsonToken.FIELD_NAME) { if ("Name".equals(jp.getCurrentName())) { parameter.setName(jp.nextTextValue()); } else if ("Type".equals(jp.getCurrentName())) { parameter.setType(jp.nextTextValue()); } else if ("Nullable".equals(jp.getCurrentName())) { parameter.setNullable(BooleanUtils.toBoolean(jp.nextTextValue())); } else if ("MaxLength".equals(jp.getCurrentName())) { final String maxLenght = jp.nextTextValue(); parameter.setMaxLength( maxLenght.equalsIgnoreCase("max") ? Integer.MAX_VALUE : Integer.valueOf(maxLenght)); } else if ("Precision".equals(jp.getCurrentName())) { parameter.setPrecision(Integer.valueOf(jp.nextTextValue())); } else if ("Scale".equals(jp.getCurrentName())) { final String scale = jp.nextTextValue(); parameter.setScale(scale.equalsIgnoreCase("variable") ? 0 : Integer.valueOf(scale)); } else if ("Mode".equals(jp.getCurrentName())) { ((org.apache.olingo.client.core.edm.xml.v3.ParameterImpl) parameter) .setMode(ParameterMode.valueOf(jp.nextTextValue())); } else if ("SRID".equals(jp.getCurrentName())) { final String srid = jp.nextTextValue(); if (srid != null) { ((org.apache.olingo.client.core.edm.xml.v4.ParameterImpl) parameter) .setSrid(SRID.valueOf(srid)); } } else if ("Annotation".equals(jp.getCurrentName())) { jp.nextToken(); ((org.apache.olingo.client.core.edm.xml.v4.ParameterImpl) parameter).getAnnotations() .add(jp.readValueAs(AnnotationImpl.class)); } } } return parameter; } }