/*
*
* * Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
* *
* * 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.
* *
* * For more information: http://www.orientechnologies.com
*
*/
package com.orientechnologies.orient.graph.gremlin;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.orientechnologies.orient.core.command.OCommandExecutor;
import com.orientechnologies.orient.core.command.OCommandExecutorAbstract;
import com.orientechnologies.orient.core.command.OCommandRequest;
import com.orientechnologies.orient.core.command.OCommandRequestText;
import com.orientechnologies.orient.core.command.script.OCommandScriptException;
import com.orientechnologies.orient.core.db.ODatabaseRecordThreadLocal;
import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx;
/**
* Executes a GREMLIN command.
*
* @author Luca Garulli
*/
public class OCommandGremlinExecutor extends OCommandExecutorAbstract {
private ODatabaseDocumentTx db;
@SuppressWarnings("unchecked")
@Override
public <RET extends OCommandExecutor> RET parse(OCommandRequest iRequest) {
parserText = ((OCommandRequestText) iRequest).getText();
db = OGremlinHelper.getGraphDatabase(ODatabaseRecordThreadLocal.INSTANCE.get());
return (RET) this;
}
@Override
public Object execute(final Map<Object, Object> iArgs) {
parameters = iArgs;
final List<Object> result = new ArrayList<Object>();
final Object scriptResult = OGremlinHelper.execute(db, parserText, parameters, new HashMap<Object, Object>(), result, null,
null);
return scriptResult != null ? scriptResult : result;
}
@Override
public boolean isIdempotent() {
return false;
}
@Override
protected void throwSyntaxErrorException(String iText) {
throw new OCommandScriptException("Error on parsing of the script: " + iText);
}
}