/*
* Copyright 1999-2010 Luca Garulli (l.garulli--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.
*/
package com.orientechnologies.orient.core.sql;
import java.util.Map;
import com.orientechnologies.orient.core.command.OCommandRequestText;
import com.orientechnologies.orient.core.exception.OCommandExecutionException;
import com.orientechnologies.orient.core.index.OIndex;
import com.orientechnologies.orient.core.metadata.security.ODatabaseSecurityResources;
import com.orientechnologies.orient.core.metadata.security.ORole;
/**
* SQL REMOVE INDEX command: Remove an index
*
* @author Luca Garulli (l.garulli--at--orientechnologies.com)
*
*/
@SuppressWarnings("unchecked")
public class OCommandExecutorSQLRebuildIndex extends OCommandExecutorSQLPermissionAbstract {
public static final String KEYWORD_REBUILD = "REBUILD";
public static final String KEYWORD_INDEX = "INDEX";
private String name;
public OCommandExecutorSQLRebuildIndex parse(final OCommandRequestText iRequest) {
iRequest.getDatabase().checkSecurity(ODatabaseSecurityResources.COMMAND, ORole.PERMISSION_CREATE);
init(iRequest.getDatabase(), iRequest.getText());
final StringBuilder word = new StringBuilder();
int oldPos = 0;
int pos = OSQLHelper.nextWord(text, textUpperCase, oldPos, word, true);
if (pos == -1 || !word.toString().equals(KEYWORD_REBUILD))
throw new OCommandSQLParsingException("Keyword " + KEYWORD_REBUILD + " not found", text, oldPos);
oldPos = pos;
pos = OSQLHelper.nextWord(text, textUpperCase, pos, word, true);
if (pos == -1 || !word.toString().equals(KEYWORD_INDEX))
throw new OCommandSQLParsingException("Keyword " + KEYWORD_INDEX + " not found", text, oldPos);
oldPos = pos;
pos = OSQLHelper.nextWord(text, textUpperCase, oldPos, word, false);
if (pos == -1)
throw new OCommandSQLParsingException("Expected index name", text, oldPos);
name = word.toString();
return this;
}
/**
* Execute the REMOVE INDEX.
*/
public Object execute(final Map<Object, Object> iArgs) {
if (name == null)
throw new OCommandExecutionException("Can't execute the command because it hasn't been parsed yet");
if (name.equals("*")) {
long totalIndexed = 0;
for (OIndex idx : database.getMetadata().getIndexManager().getIndexes()) {
if (idx.isAutomatic())
totalIndexed += idx.rebuild();
}
return totalIndexed;
} else {
final OIndex idx = database.getMetadata().getIndexManager().getIndex(name);
if (idx == null)
throw new OCommandExecutionException("Index '" + name + "' not found");
if (!idx.isAutomatic())
throw new OCommandExecutionException("Can't rebuild index '" + name
+ "' because it's manual and there aren't indications of what to index");
return idx.rebuild();
}
}
}