/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.olingo.service;
import java.util.concurrent.ConcurrentHashMap;
import javax.servlet.ServletException;
import javax.xml.stream.XMLStreamException;
import org.apache.olingo.commons.api.edm.provider.CsdlSchema;
import org.apache.olingo.commons.api.ex.ODataException;
import org.apache.olingo.server.api.OData;
import org.apache.olingo.server.api.ODataHttpHandler;
import org.apache.olingo.server.api.ServiceMetadata;
import org.apache.olingo.server.core.OData4Impl;
import org.teiid.adminapi.Model;
import org.teiid.adminapi.impl.VDBMetaData;
import org.teiid.odata.api.Client;
import org.teiid.olingo.ODataPlugin;
public class OlingoBridge {
private ConcurrentHashMap<String, ODataHttpHandler> handlers = new ConcurrentHashMap<String, ODataHttpHandler>();
public ODataHttpHandler getHandler(String baseUri, Client client, String schemaName) throws ServletException {
if (this.handlers.get(schemaName) == null) {
org.teiid.metadata.Schema teiidSchema = client.getMetadataStore().getSchema(schemaName);
if (teiidSchema == null || !isVisible(client.getVDB(), teiidSchema)) {
throw new ServletException(ODataPlugin.Util.gs(ODataPlugin.Event.TEIID16022));
}
try {
OData odata = OData4Impl.newInstance();
VDBMetaData vdb = client.getVDB();
CsdlSchema schema = ODataSchemaBuilder.buildMetadata(vdb.getFullName(), teiidSchema);
TeiidEdmProvider edmProvider = new TeiidEdmProvider(baseUri, schema,
client.getProperty(Client.INVALID_CHARACTER_REPLACEMENT));
ServiceMetadata metadata = odata.createServiceMetadata(edmProvider, edmProvider.getReferences());
ODataHttpHandler handler = odata.createHandler(metadata);
handler.register(new TeiidServiceHandler(schemaName));
this.handlers.put(schemaName, handler);
} catch (XMLStreamException e) {
throw new ServletException(ODataPlugin.Util.gs(ODataPlugin.Event.TEIID16054));
} catch (ODataException e) {
throw new ServletException(ODataPlugin.Util.gs(ODataPlugin.Event.TEIID16054));
}
}
return this.handlers.get(schemaName);
}
private static boolean isVisible(VDBMetaData vdb, org.teiid.metadata.Schema schema) {
String schemaName = schema.getName();
Model model = vdb.getModel(schemaName);
if (model == null) {
return true;
}
return model.isVisible();
}
}