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ScanQueryView.java
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ScanQueryView.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.ignite.spi.systemview.view;
import java.util.UUID;
import org.apache.ignite.internal.managers.systemview.walker.Order;
import org.apache.ignite.internal.processors.cache.distributed.dht.topology.GridDhtLocalPartition;
import org.apache.ignite.internal.processors.cache.query.GridCacheQueryManager.ScanQueryIterator;
import org.apache.ignite.internal.util.typedef.internal.U;
import org.apache.ignite.lang.IgniteBiPredicate;
import org.apache.ignite.lang.IgniteBiTuple;
import org.apache.ignite.lang.IgniteClosure;
import org.apache.ignite.spi.IgniteSpiCloseableIterator;
import static org.apache.ignite.internal.util.IgniteUtils.toStringSafe;
/**
* Scan query iterator representation for a {@link SystemView}.
*/
public class ScanQueryView {
/** Origin node id. */
private final UUID nodeId;
/** Local query id. */
private final long qryId;
/** Canceled flag. */
private final boolean canceled;
/** Scan query iterator. */
private final ScanQueryIterator iter;
/**
* @param nodeId Originating node id.
* @param qryId Query id.
* @param canceled {@code True} if query canceled.
* @param iter Query iterator.
* @param <K> Key type.
* @param <V> Value type.
*/
public <K, V> ScanQueryView(UUID nodeId, long qryId, boolean canceled,
IgniteSpiCloseableIterator<IgniteBiTuple<K, V>> iter) {
this.nodeId = nodeId;
this.qryId = qryId;
this.canceled = canceled;
this.iter = (ScanQueryIterator)iter;
}
/** @return Origin node id. */
@Order
public UUID originNodeId() {
return nodeId;
}
/** @return Local query id. */
@Order(1)
public long queryId() {
return qryId;
}
/** @return {@code True} if query canceled. */
public boolean canceled() {
return canceled;
}
/** @return Cache name. */
@Order(2)
public String cacheName() {
return iter.cacheContext().name();
}
/** @return Cache id. */
@Order(3)
public int cacheId() {
return iter.cacheContext().cacheId();
}
/** @return Cache group id. */
@Order(4)
public int cacheGroupId() {
return iter.cacheContext().groupId();
}
/** @return Cache group name. */
@Order(5)
public String cacheGroupName() {
return iter.cacheContext().group().cacheOrGroupName();
}
/** @return Start time. */
@Order(6)
public long startTime() {
return iter.startTime();
}
/** @return Query duration. */
@Order(7)
public long duration() {
return U.currentTimeMillis() - iter.startTime();
}
/** @return Filter. */
public String filter() {
IgniteBiPredicate filter = iter.filter();
return filter == null ? null : toStringSafe(filter);
}
/** @return Cache partition. */
public int partition() {
GridDhtLocalPartition part = iter.localPartition();
if (part == null)
return -1;
return part.id();
}
/** @return {@code True} if query local. */
public boolean local() {
return iter.local();
}
/** @return Transformer. */
public String transformer() {
IgniteClosure<?, ?> trans = iter.transformer();
return trans == null ? null : toStringSafe(trans);
}
/** @return Topology. */
public String topology() {
return toStringSafe(iter.topVer());
}
/** @return Keep binary flag. */
public boolean keepBinary() {
return iter.keepBinary();
}
/** @return Subject id. */
public UUID subjectId() {
return iter.subjectId();
}
/** @return Task name. */
public String taskName() {
return iter.taskName();
}
/** @return Page size. */
public int pageSize() {
return iter.pageSize();
}
}