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* 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.odata2.core.ep.producer;
import java.io.IOException;
import java.io.Writer;
import org.apache.olingo.odata2.api.edm.Edm;
import org.apache.olingo.odata2.api.edm.EdmEntitySetInfo;
import org.apache.olingo.odata2.api.edm.EdmServiceMetadata;
import org.apache.olingo.odata2.api.ep.EntityProviderException;
import org.apache.olingo.odata2.api.exception.ODataException;
import org.apache.olingo.odata2.core.ep.util.FormatJson;
import org.apache.olingo.odata2.core.ep.util.JsonStreamWriter;
/**
* Writes the OData service document in JSON.
*
*/
public class JsonServiceDocumentProducer {
public static void writeServiceDocument(final Writer writer, final Edm edm) throws EntityProviderException {
final EdmServiceMetadata serviceMetadata = edm.getServiceMetadata();
JsonStreamWriter jsonStreamWriter = new JsonStreamWriter(writer);
try {
jsonStreamWriter.beginObject()
.name(FormatJson.D)
.beginObject()
.name(FormatJson.ENTITY_SETS)
.beginArray();
boolean first = true;
for (EdmEntitySetInfo info : serviceMetadata.getEntitySetInfos()) {
if (first) {
first = false;
} else {
jsonStreamWriter.separator();
}
jsonStreamWriter.stringValue(info.getEntitySetUri().toASCIIString());
}
jsonStreamWriter.endArray()
.endObject()
.endObject();
} catch (final IOException e) {
throw new EntityProviderException(EntityProviderException.EXCEPTION_OCCURRED.addContent(e.getClass()
.getSimpleName()), e);
} catch (final ODataException e) {
throw new EntityProviderException(EntityProviderException.EXCEPTION_OCCURRED.addContent(e.getClass()
.getSimpleName()), e);
}
}
}