/**
* Copyright 2010 Molindo GmbH
*
* 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 at.molindo.esi4j.multi.impl;
import java.util.Iterator;
import at.molindo.esi4j.core.Esi4JClient;
import at.molindo.esi4j.core.Esi4JIndex;
import at.molindo.esi4j.core.Esi4JStore;
import at.molindo.esi4j.core.internal.InternalIndex;
import at.molindo.esi4j.multi.Esi4JManagedMultiIndex;
import at.molindo.esi4j.multi.Esi4JMultiStore;
public class DefaultMultiStore implements Esi4JMultiStore {
private final Esi4JManagedMultiIndex _index;
private final Iterable<Esi4JStore> _stores;
public DefaultMultiStore(Esi4JManagedMultiIndex index) {
if (index == null) {
throw new NullPointerException("index");
}
_index = index;
_stores = new Iterable<Esi4JStore>() {
@Override
public Iterator<Esi4JStore> iterator() {
return gestStoresIterator();
}
};
}
@Override
public String getIndexName() {
StringBuilder buf = new StringBuilder();
for (Esi4JStore store : _stores) {
buf.append(store.getIndexName()).append(",");
}
buf.setLength(buf.length() - 1);
return buf.toString();
}
@Override
public <T> T execute(StoreOperation<T> operation) {
return operation.execute(getClient().getClient(), getIndexName());
}
@Override
public void setIndex(Esi4JIndex index) {
throw new IllegalStateException("store was already assigned to an index named " + index.getName());
}
@Override
public Esi4JClient getClient() {
Esi4JClient client = null;
for (Esi4JStore store : _stores) {
if (client == null) {
client = store.getClient();
} else if (!client.getClusterName().equals(store.getClient().getClusterName())) {
throw new IllegalArgumentException("can't create store among multiple clusters");
}
}
return client;
}
@Override
public Iterable<Esi4JStore> getStores() {
return _stores;
}
private Iterator<Esi4JStore> gestStoresIterator() {
return new Iterator<Esi4JStore>() {
private final Iterator<InternalIndex> _iter = _index.getIndices().values().iterator();
@Override
public Esi4JStore next() {
return _iter.next().getStore();
}
@Override
public boolean hasNext() {
return _iter.hasNext();
}
@Override
public void remove() {
throw new UnsupportedOperationException();
}
};
}
@Override
public void close() {
}
}