/*
* ModeShape (http://www.modeshape.org)
*
* 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 org.modeshape.jcr.query.parse;
import java.io.InputStream;
import java.math.BigDecimal;
import java.net.URI;
import java.util.Calendar;
import javax.jcr.Binary;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
import javax.jcr.Value;
import javax.jcr.query.Query;
import org.modeshape.jcr.GraphI18n;
import org.modeshape.jcr.JcrValueFactory;
import org.modeshape.jcr.api.value.DateTime;
import org.modeshape.jcr.query.JcrTypeSystem;
import org.modeshape.jcr.query.model.LiteralValue;
import org.modeshape.jcr.query.model.TypeSystem;
import org.modeshape.jcr.value.Name;
import org.modeshape.jcr.value.Path;
import org.modeshape.jcr.value.PropertyType;
import org.modeshape.jcr.value.Reference;
import org.modeshape.jcr.value.ValueFormatException;
/**
* An specialization of the {@link BasicSqlQueryParser} that uses a different language name that matches the JCR 2.0
* specification.
*/
public class JcrSql2QueryParser extends BasicSqlQueryParser {
public static final String LANGUAGE = Query.JCR_SQL2;
/**
* @see org.modeshape.jcr.query.parse.QueryParser#getLanguage()
*/
@Override
public String getLanguage() {
return LANGUAGE;
}
/**
* @see org.modeshape.jcr.query.parse.BasicSqlQueryParser#literal(TypeSystem, Object)
*/
@Override
protected LiteralValue literal( TypeSystem typeSystem,
Object value ) throws ValueFormatException {
JcrValueFactory factory = ((JcrTypeSystem)typeSystem).getValueFactory();
Value jcrValue = null;
if (value instanceof String) {
jcrValue = factory.createValue((String)value);
} else if (value instanceof Boolean) {
jcrValue = factory.createValue(((Boolean)value).booleanValue());
} else if (value instanceof Binary) {
jcrValue = factory.createValue((Binary)value);
} else if (value instanceof DateTime) {
jcrValue = factory.createValue(((DateTime)value).toCalendar());
} else if (value instanceof Calendar) {
jcrValue = factory.createValue((Calendar)value);
} else if (value instanceof BigDecimal) {
jcrValue = factory.createValue((BigDecimal)value);
} else if (value instanceof Double) {
jcrValue = factory.createValue((Double)value);
} else if (value instanceof Long) {
jcrValue = factory.createValue((Long)value);
} else if (value instanceof Reference) {
jcrValue = factory.createValue((Reference)value);
} else if (value instanceof URI) {
jcrValue = factory.createValue((URI)value);
} else if (value instanceof InputStream) {
Binary binary = factory.createBinary((InputStream)value);
jcrValue = factory.createValue(binary);
} else if (value instanceof Name || value instanceof Path) {
// Convert first to a string ...
String strValue = typeSystem.getStringFactory().create(value);
jcrValue = factory.createValue(strValue);
} else if (value instanceof Node) {
try {
jcrValue = factory.createValue((Node)value);
} catch (RepositoryException e) {
throw new ValueFormatException(value, PropertyType.REFERENCE,
GraphI18n.errorConvertingType.text(Node.class.getSimpleName(),
Reference.class.getSimpleName(), value), e);
}
} else {
jcrValue = factory.createValue(value.toString());
}
return new LiteralValue(jcrValue, value);
}
}