/**
* Copyright (C) 2009-2013 FoundationDB, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.foundationdb.server.store;
import com.foundationdb.ais.model.AkibanInformationSchema;
import com.foundationdb.ais.model.DefaultNameGenerator;
import com.foundationdb.ais.model.FullTextIndex;
import com.foundationdb.ais.model.Group;
import com.foundationdb.ais.model.GroupIndex;
import com.foundationdb.ais.model.HasStorage;
import com.foundationdb.ais.model.Index;
import com.foundationdb.ais.model.Sequence;
import com.foundationdb.ais.model.Table;
import com.foundationdb.ais.model.TableIndex;
import com.foundationdb.ais.model.TableName;
import com.foundationdb.server.store.format.PersistitStorageDescription;
import java.util.HashSet;
import java.util.Set;
import java.util.TreeSet;
public class PersistitNameGenerator extends DefaultNameGenerator
{
static final int MAX_TREE_NAME_LENGTH = 256;
private static final String TREE_NAME_SEPARATOR = ".";
protected final Set<String> treeNames;
public PersistitNameGenerator(AkibanInformationSchema ais) {
super();
treeNames = new HashSet<>();
mergeAIS(ais);
}
@Override
public synchronized void mergeAIS(AkibanInformationSchema ais) {
super.mergeAIS(ais);
treeNames.addAll(collectTreeNames(ais));
}
@Override
public synchronized Set<String> getStorageNames() {
return new TreeSet<>(treeNames);
}
//
// PersistitNameGenerator
//
public synchronized String generateIndexTreeName(Index index) {
// schema.table.index
final TableName tableName;
switch(index.getIndexType()) {
case TABLE:
tableName = ((TableIndex)index).getTable().getName();
break;
case GROUP:
Table root = ((GroupIndex)index).getGroup().getRoot();
if(root == null) {
throw new IllegalArgumentException("Grouping incomplete (no root)");
}
tableName = root.getName();
break;
case FULL_TEXT:
tableName = ((FullTextIndex)index).getIndexedTable().getName();
break;
default:
throw new IllegalArgumentException("Unknown type: " + index.getIndexType());
}
return generateIndexTreeName(tableName.getSchemaName(), tableName.getTableName(), index.getIndexName().getName());
}
public synchronized String generateGroupTreeName(String schemaName, String groupName) {
// schema.group_name
String proposed = escapeForTreeName(schemaName) + TREE_NAME_SEPARATOR +
escapeForTreeName(groupName);
return makeUnique(treeNames, proposed, MAX_TREE_NAME_LENGTH);
}
public synchronized String generateSequenceTreeName(Sequence sequence) {
TableName tableName = sequence.getSequenceName();
return generateSequenceTreeName(tableName.getSchemaName(), tableName.getTableName());
}
public synchronized void generatedTreeName(String treeName) {
if(!treeNames.add(treeName)) {
throw new IllegalArgumentException("Tree name already present: " + treeName);
}
}
public synchronized void removeTreeName(String treeName) {
treeNames.remove(treeName);
}
//
// Internal
//
protected synchronized String generateIndexTreeName(String schemaName, String tableName, String indexName) {
String proposed = escapeForTreeName(schemaName) + TREE_NAME_SEPARATOR +
escapeForTreeName(tableName) + TREE_NAME_SEPARATOR +
escapeForTreeName(indexName);
return makeUnique(treeNames, proposed, MAX_TREE_NAME_LENGTH);
}
protected synchronized String generateSequenceTreeName(String schemaName, String sequenceName) {
String proposed = escapeForTreeName(schemaName) + TREE_NAME_SEPARATOR +
escapeForTreeName(sequenceName);
return makeUnique(treeNames, proposed, MAX_TREE_NAME_LENGTH);
}
//
// Static
//
public static String getTreeName(HasStorage object) {
if (object.getStorageDescription() instanceof PersistitStorageDescription) {
return ((PersistitStorageDescription)object.getStorageDescription()) .getTreeName();
}
return null;
}
public static String escapeForTreeName(String name) {
return name.replace(TREE_NAME_SEPARATOR, "\\" + TREE_NAME_SEPARATOR);
}
public static Set<String> collectTreeNames(AkibanInformationSchema ais) {
Set<String> treeNames = new HashSet<>();
String treeName;
for(Group group : ais.getGroups().values()) {
treeName = getTreeName(group);
if (treeName != null) {
treeNames.add(treeName);
}
for(Index index : group.getIndexes()) {
treeName = getTreeName(index);
if (treeName != null) {
treeNames.add(treeName);
}
}
}
for(Table table : ais.getTables().values()) {
for(Index index : table.getIndexesIncludingInternal()) {
treeName = getTreeName(index);
if (treeName != null) {
treeNames.add(treeName);
}
}
}
for (Sequence sequence : ais.getSequences().values()){
treeName = getTreeName(sequence);
if (treeName != null) {
treeNames.add(treeName);
}
}
return treeNames;
}
}