/*
* Copyright 2012 NGDATA nv
*
* 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.lilyproject.repository.impl;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.lilyproject.repository.api.FieldType;
import org.lilyproject.repository.api.FieldTypeNotFoundException;
import org.lilyproject.repository.api.FieldTypes;
import org.lilyproject.repository.api.QName;
import org.lilyproject.repository.api.SchemaId;
import org.lilyproject.util.ArgumentValidator;
public class FieldTypesImpl implements FieldTypes {
private Log log = LogFactory.getLog(getClass());
// Always use getNameCache() instead of this variable directly, to make sure
// this is the up-to-date nameCache (in case of FieldTypesCache).
protected Map<QName, FieldType> nameCache;
protected Map<String, Map<SchemaId, FieldType>> buckets;
public FieldTypesImpl() {
nameCache = new HashMap<QName, FieldType>();
buckets = new ConcurrentHashMap<String, Map<SchemaId, FieldType>>();
}
protected Map<QName, FieldType> getNameCache() throws InterruptedException {
return nameCache;
}
@Override
public List<FieldType> getFieldTypes() throws InterruptedException {
List<FieldType> fieldTypes = new ArrayList<FieldType>();
for (FieldType fieldType : getNameCache().values()) {
fieldTypes.add(fieldType.clone());
}
return fieldTypes;
}
@Override
public FieldType getFieldType(SchemaId id) throws FieldTypeNotFoundException {
ArgumentValidator.notNull(id, "id");
String bucket = AbstractSchemaCache.encodeHex(id.getBytes());
Map<SchemaId, FieldType> fieldTypeIdCacheBucket = buckets.get(bucket);
if (fieldTypeIdCacheBucket == null) {
throw new FieldTypeNotFoundException(id);
}
FieldType fieldType = fieldTypeIdCacheBucket.get(id);
if (fieldType == null) {
throw new FieldTypeNotFoundException(id);
}
return fieldType.clone();
}
@Override
public FieldType getFieldType(QName name) throws FieldTypeNotFoundException, InterruptedException {
ArgumentValidator.notNull(name, "name");
FieldType fieldType = getNameCache().get(name);
if (fieldType == null) {
throw new FieldTypeNotFoundException(name);
}
return fieldType.clone();
}
public FieldType getFieldTypeByNameReturnNull(QName name) throws InterruptedException {
ArgumentValidator.notNull(name, "name");
FieldType fieldType = getNameCache().get(name);
return fieldType != null ? fieldType.clone() : null;
}
public boolean fieldTypeExists(QName name) throws InterruptedException {
return getNameCache().containsKey(name);
}
}