/*******************************************************************************
* Copyright 2013 SAP AG
*
* 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 com.sap.core.odata.core.ep.producer;
import java.util.List;
import java.util.Map;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import com.sap.core.odata.api.edm.Edm;
import com.sap.core.odata.api.ep.EntityProviderException;
import com.sap.core.odata.api.ep.EntityProviderWriteProperties;
import com.sap.core.odata.core.ep.aggregator.EntityInfoAggregator;
import com.sap.core.odata.core.ep.util.FormatXml;
/**
* Provider for writing a collection of links
* @author SAP AG
*/
public class XmlLinksEntityProducer {
private final EntityProviderWriteProperties properties;
public XmlLinksEntityProducer(final EntityProviderWriteProperties properties) throws EntityProviderException {
this.properties = properties == null ? EntityProviderWriteProperties.serviceRoot(null).build() : properties;
}
public void append(final XMLStreamWriter writer, final EntityInfoAggregator entityInfo, final List<Map<String, Object>> data) throws EntityProviderException {
try {
writer.writeStartElement(FormatXml.D_LINKS);
writer.writeDefaultNamespace(Edm.NAMESPACE_D_2007_08);
if (properties.getInlineCount() != null) {
writer.writeStartElement(Edm.PREFIX_M, FormatXml.M_COUNT, Edm.NAMESPACE_M_2007_08);
writer.writeNamespace(Edm.PREFIX_M, Edm.NAMESPACE_M_2007_08);
writer.writeCharacters(properties.getInlineCount().toString());
writer.writeEndElement();
}
XmlLinkEntityProducer provider = new XmlLinkEntityProducer(properties);
for (final Map<String, Object> entityData : data) {
provider.append(writer, entityInfo, entityData, false);
}
writer.writeEndElement();
writer.flush();
} catch (final XMLStreamException e) {
throw new EntityProviderException(EntityProviderException.COMMON, e);
}
}
}