/*
* 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.translator.solr;
import java.util.Arrays;
import java.util.EnumSet;
import java.util.Map;
import org.apache.solr.client.solrj.request.LukeRequest;
import org.apache.solr.client.solrj.response.LukeResponse;
import org.apache.solr.client.solrj.response.LukeResponse.FieldInfo;
import org.apache.solr.common.luke.FieldFlag;
import org.teiid.core.types.DataTypeManager;
import org.teiid.metadata.Column;
import org.teiid.metadata.Column.SearchType;
import org.teiid.metadata.MetadataFactory;
import org.teiid.metadata.Table;
import org.teiid.translator.MetadataProcessor;
import org.teiid.translator.TranslatorException;
public class SolrMetadataProcessor implements MetadataProcessor<SolrConnection>{
@Override
public void process(MetadataFactory metadataFactory,
SolrConnection connection) throws TranslatorException {
getConnectorMetadata(connection, metadataFactory);
}
public void getConnectorMetadata(SolrConnection conn, MetadataFactory metadataFactory) throws TranslatorException {
int count = 0;
LukeRequest request = new LukeRequest();
request.setShowSchema(true);
LukeResponse response = conn.metadata(request);
Map<String, FieldInfo> fields = response.getFieldInfo();
Table table = metadataFactory.addTable(conn.getCoreName());
table.setSupportsUpdate(true);
for (String name:fields.keySet()) {
FieldInfo field = fields.get(name);
EnumSet<FieldFlag> flags = field.getFlags();
if ((!name.startsWith("_") && !name.endsWith("_")) || name.startsWith("*") || name.endsWith("*")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
if (flags.contains(FieldFlag.INDEXED) && flags.contains(FieldFlag.STORED)) {
Column column = null;
// array type
if (flags.contains(FieldFlag.MULTI_VALUED)) {
column = metadataFactory.addColumn(field.getName(), resolveType(field.getType())+"[]", table); //$NON-NLS-1$
}
else {
column = metadataFactory.addColumn(field.getName(), resolveType(field.getType()), table);
}
column.setUpdatable(true);
column.setSearchType(SearchType.Searchable);
// create primary key; and unique keys
if (field.getDistinct() > 0 || field.getName().equals("id")) { //$NON-NLS-1$
if (table.getPrimaryKey() == null) {
metadataFactory.addPrimaryKey("PK0", Arrays.asList(field.getName()), table); //$NON-NLS-1$
}
else {
metadataFactory.addIndex("UI"+count, true, Arrays.asList(field.getName()), table); //$NON-NLS-1$
count++;
}
}
}
}
}
}
private String resolveType(String solrType) {
if (solrType.equals("string") || solrType.startsWith("text_") || solrType.equals("alphaOnlySort") || solrType.equals("phonetic") || solrType.equals("payloads") ||solrType.equals("lowercase")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$
return DataTypeManager.DefaultDataTypes.STRING;
}
else if (solrType.equals("int") || solrType.equals("tint") || solrType.equals("pint")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
return DataTypeManager.DefaultDataTypes.INTEGER;
}
else if (solrType.equals("boolean") || solrType.equals("tboolean") || solrType.equals("pboolean")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
return DataTypeManager.DefaultDataTypes.BOOLEAN;
}
else if (solrType.equals("binary")) { //$NON-NLS-1$
return DataTypeManager.DefaultDataTypes.BLOB;
}
else if (solrType.equals("date") || solrType.equals("tdate") || solrType.equals("pdate")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
return DataTypeManager.DefaultDataTypes.TIMESTAMP;
}
else if (solrType.equals("float") || solrType.equals("tfloat") || solrType.equals("pfloat")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
return DataTypeManager.DefaultDataTypes.FLOAT;
}
else if (solrType.equals("long") || solrType.equals("tlong") || solrType.equals("plong")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
return DataTypeManager.DefaultDataTypes.LONG;
}
else if (solrType.equals("double") || solrType.equals("tdouble") || solrType.equals("pdouble") || solrType.equals("currency")) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
return DataTypeManager.DefaultDataTypes.DOUBLE;
}
return DataTypeManager.DefaultDataTypes.STRING;
}
}