modules/core/src/main/java/org/apache/ignite/internal/processors/query/h2/twostep/messages/GridQueryNextPageResponse.java - ignite - Git at Google

 /*
  * 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.internal.processors.query.h2.twostep.messages;

 import java.io.Externalizable;
 import java.nio.ByteBuffer;
 import java.util.Collection;
 import org.apache.ignite.internal.GridDirectCollection;
 import org.apache.ignite.internal.GridDirectTransient;
 import org.apache.ignite.internal.IgniteCodeGeneratingFail;
 import org.apache.ignite.internal.processors.affinity.AffinityTopologyVersion;
 import org.apache.ignite.internal.util.typedef.internal.S;
 import org.apache.ignite.plugin.extensions.communication.Message;
 import org.apache.ignite.plugin.extensions.communication.MessageCollectionItemType;
 import org.apache.ignite.plugin.extensions.communication.MessageReader;
 import org.apache.ignite.plugin.extensions.communication.MessageWriter;

 /**
  * Next page response.
  */
 @IgniteCodeGeneratingFail
 public class GridQueryNextPageResponse implements Message {
     /** */
     private static final long serialVersionUID = 0L;

     /** */
     private long qryReqId;

     /** */
     private int segmentId;

     /** */
     private int qry;

     /** */
     private int page;

     /** */
     private int allRows;

     /** */
     private int cols;

     /** */
     @GridDirectCollection(Message.class)
     private Collection<Message> vals;

     /** */
     @GridDirectTransient
     private transient Collection<?> plainRows;

     /** */
     private AffinityTopologyVersion retry;

     /** Retry cause description*/
     private String retryCause;

     /** Last page flag. */
     private boolean last;

     /** Remove mapping flag. */
     private boolean removeMapping;

     /**
      * For {@link Externalizable}.
      */
     public GridQueryNextPageResponse() {
         // No-op.
     }

     /**
      * @param qryReqId Query request ID.
      * @param segmentId Index segment ID.
      * @param qry Query.
      * @param page Page.
      * @param allRows All rows count.
      * @param cols Number of columns in row.
      * @param vals Values for rows in this page added sequentially.
      * @param plainRows Not marshalled rows for local node.
      * @param last Last page flag.
      */
     public GridQueryNextPageResponse(long qryReqId, int segmentId, int qry, int page, int allRows, int cols,
         Collection<Message> vals, Collection<?> plainRows, boolean last) {
         assert vals != null ^ plainRows != null;
         assert cols > 0 : cols;

         this.qryReqId = qryReqId;
         this.segmentId = segmentId;
         this.qry = qry;
         this.page = page;
         this.allRows = allRows;
         this.cols = cols;
         this.vals = vals;
         this.plainRows = plainRows;
         this.last = last;
     }

     /**
      * @return Query request ID.
      */
     public long queryRequestId() {
         return qryReqId;
     }

     /**
      * @return Index segment ID.
      */
     public int segmentId() {
         return segmentId;
     }

     /**
      * @return Query.
      */
     public int query() {
         return qry;
     }

     /**
      * @return Page.
      */
     public int page() {
         return page;
     }

     /**
      * @return All rows.
      */
     public int allRows() {
         return allRows;
     }

     /**
      * @return Columns in row.
      */
     public int columns() {
         return cols;
     }

     /**
      * @return Values.
      */
     public Collection<Message> values() {
         return vals;
     }

     /**
      * @return Plain rows.
      */
     public Collection<?> plainRows() {
         return plainRows;
     }

     /** {@inheritDoc} */
     @Override public void onAckReceived() {
         // No-op.
     }

     /** {@inheritDoc} */
     @Override public boolean writeTo(ByteBuffer buf, MessageWriter writer) {
         writer.setBuffer(buf);

         if (!writer.isHeaderWritten()) {
             if (!writer.writeHeader(directType(), fieldsCount()))
                 return false;

             writer.onHeaderWritten();
         }

         switch (writer.state()) {
             case 0:
                 if (!writer.writeInt("allRows", allRows))
                     return false;

                 writer.incrementState();

             case 1:
                 if (!writer.writeInt("cols", cols))
                     return false;

                 writer.incrementState();

             case 2:
                 if (!writer.writeInt("page", page))
                     return false;

                 writer.incrementState();

             case 3:
                 if (!writer.writeInt("qry", qry))
                     return false;

                 writer.incrementState();

             case 4:
                 if (!writer.writeLong("qryReqId", qryReqId))
                     return false;

                 writer.incrementState();

             case 5:
                 if (!writer.writeCollection("vals", vals, MessageCollectionItemType.MSG))
                     return false;

                 writer.incrementState();

             case 6:
                 if (!writer.writeMessage("retry", retry))
                     return false;

                 writer.incrementState();

             case 7:
                 if (!writer.writeInt("segmentId", segmentId))
                     return false;

                 writer.incrementState();

             case 8:
                 if (!writer.writeBoolean("last", last))
                     return false;

                 writer.incrementState();

             case 9:
                 if (!writer.writeString("retryCause", retryCause))
                     return false;

                 writer.incrementState();

             case 10:
                 if (!writer.writeBoolean("removeMapping", removeMapping))
                     return false;

                 writer.incrementState();
         }

         return true;
     }

     /** {@inheritDoc} */
     @Override public boolean readFrom(ByteBuffer buf, MessageReader reader) {
         reader.setBuffer(buf);

         if (!reader.beforeMessageRead())
             return false;

         switch (reader.state()) {
             case 0:
                 allRows = reader.readInt("allRows");

                 if (!reader.isLastRead())
                     return false;

                 reader.incrementState();

             case 1:
                 cols = reader.readInt("cols");

                 if (!reader.isLastRead())
                     return false;

                 reader.incrementState();

             case 2:
                 page = reader.readInt("page");

                 if (!reader.isLastRead())
                     return false;

                 reader.incrementState();

             case 3:
                 qry = reader.readInt("qry");

                 if (!reader.isLastRead())
                     return false;

                 reader.incrementState();

             case 4:
                 qryReqId = reader.readLong("qryReqId");

                 if (!reader.isLastRead())
                     return false;

                 reader.incrementState();

             case 5:
                 vals = reader.readCollection("vals", MessageCollectionItemType.MSG);

                 if (!reader.isLastRead())
                     return false;

                 reader.incrementState();

             case 6:
                 retry = reader.readMessage("retry");

                 if (!reader.isLastRead())
                     return false;

                 reader.incrementState();

             case 7:
                 segmentId = reader.readInt("segmentId");

                 if (!reader.isLastRead())
                     return false;

                 reader.incrementState();

             case 8:
                 last = reader.readBoolean("last");

                 if (!reader.isLastRead())
                     return false;

                 reader.incrementState();

             case 9:
                 retryCause = reader.readString("retryCause");

                 if (!reader.isLastRead())
                     return false;

                 reader.incrementState();

             case 10:
                 removeMapping = reader.readBoolean("removeMapping");

                 if (!reader.isLastRead())
                     return false;

                 reader.incrementState();

         }

         return reader.afterMessageRead(GridQueryNextPageResponse.class);
     }

     /** {@inheritDoc} */
     @Override public short directType() {
         return 109;
     }

     /** {@inheritDoc} */
     @Override public byte fieldsCount() {
         return 11;
     }

     /**
      * @return Retry topology version.
      */
     public AffinityTopologyVersion retry() {
         return retry;
     }

     /**
      * @param retry Retry topology version.
      */
     public void retry(AffinityTopologyVersion retry) {
         this.retry = retry;
     }

     /**
      * @return Retry Ccause message.
      */
     public String retryCause() {
         return retryCause;
     }

     /**
      * @param retryCause Retry Ccause message.
      */
     public void retryCause(String retryCause){
         this.retryCause = retryCause;
     }

     /**
      * @return Last page flag.
      */
     public boolean last() {
         return last;
     }

     /**
      * @param last Last page flag.
      */
     public void last(boolean last) {
         this.last = last;
     }

     /**
      * @param removeMapping Remove mapping flag.
      */
     public void removeMapping(boolean removeMapping) {
         this.removeMapping = removeMapping;
     }

     /**
      * @return Remove mapping flag.
      */
     public boolean removeMapping() {
         return removeMapping;
     }

     /** {@inheritDoc} */
     @Override public String toString() {
         return S.toString(GridQueryNextPageResponse.class, this,
             "valsSize", vals != null ? vals.size() : 0,
             "rowsSize", plainRows != null ? plainRows.size() : 0);
     }
 }
	/*
	* 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.internal.processors.query.h2.twostep.messages;

	import java.io.Externalizable;
	import java.nio.ByteBuffer;
	import java.util.Collection;
	import org.apache.ignite.internal.GridDirectCollection;
	import org.apache.ignite.internal.GridDirectTransient;
	import org.apache.ignite.internal.IgniteCodeGeneratingFail;
	import org.apache.ignite.internal.processors.affinity.AffinityTopologyVersion;
	import org.apache.ignite.internal.util.typedef.internal.S;
	import org.apache.ignite.plugin.extensions.communication.Message;
	import org.apache.ignite.plugin.extensions.communication.MessageCollectionItemType;
	import org.apache.ignite.plugin.extensions.communication.MessageReader;
	import org.apache.ignite.plugin.extensions.communication.MessageWriter;

	/**
	* Next page response.
	*/
	@IgniteCodeGeneratingFail
	public class GridQueryNextPageResponse implements Message {
	/** */
	private static final long serialVersionUID = 0L;

	/** */
	private long qryReqId;

	/** */
	private int segmentId;

	/** */
	private int qry;

	/** */
	private int page;

	/** */
	private int allRows;

	/** */
	private int cols;

	/** */
	@GridDirectCollection(Message.class)
	private Collection<Message> vals;

	/** */
	@GridDirectTransient
	private transient Collection<?> plainRows;

	/** */
	private AffinityTopologyVersion retry;

	/** Retry cause description*/
	private String retryCause;

	/** Last page flag. */
	private boolean last;

	/** Remove mapping flag. */
	private boolean removeMapping;

	/**
	* For {@link Externalizable}.
	*/
	public GridQueryNextPageResponse() {
	// No-op.
	}

	/**
	* @param qryReqId Query request ID.
	* @param segmentId Index segment ID.
	* @param qry Query.
	* @param page Page.
	* @param allRows All rows count.
	* @param cols Number of columns in row.
	* @param vals Values for rows in this page added sequentially.
	* @param plainRows Not marshalled rows for local node.
	* @param last Last page flag.
	*/
	public GridQueryNextPageResponse(long qryReqId, int segmentId, int qry, int page, int allRows, int cols,
	Collection<Message> vals, Collection<?> plainRows, boolean last) {
	assert vals != null ^ plainRows != null;
	assert cols > 0 : cols;

	this.qryReqId = qryReqId;
	this.segmentId = segmentId;
	this.qry = qry;
	this.page = page;
	this.allRows = allRows;
	this.cols = cols;
	this.vals = vals;
	this.plainRows = plainRows;
	this.last = last;
	}

	/**
	* @return Query request ID.
	*/
	public long queryRequestId() {
	return qryReqId;
	}

	/**
	* @return Index segment ID.
	*/
	public int segmentId() {
	return segmentId;
	}

	/**
	* @return Query.
	*/
	public int query() {
	return qry;
	}

	/**
	* @return Page.
	*/
	public int page() {
	return page;
	}

	/**
	* @return All rows.
	*/
	public int allRows() {
	return allRows;
	}

	/**
	* @return Columns in row.
	*/
	public int columns() {
	return cols;
	}

	/**
	* @return Values.
	*/
	public Collection<Message> values() {
	return vals;
	}

	/**
	* @return Plain rows.
	*/
	public Collection<?> plainRows() {
	return plainRows;
	}

	/** {@inheritDoc} */
	@Override public void onAckReceived() {
	// No-op.
	}

	/** {@inheritDoc} */
	@Override public boolean writeTo(ByteBuffer buf, MessageWriter writer) {
	writer.setBuffer(buf);

	if (!writer.isHeaderWritten()) {
	if (!writer.writeHeader(directType(), fieldsCount()))
	return false;

	writer.onHeaderWritten();
	}

	switch (writer.state()) {
	case 0:
	if (!writer.writeInt("allRows", allRows))
	return false;

	writer.incrementState();

	case 1:
	if (!writer.writeInt("cols", cols))
	return false;

	writer.incrementState();

	case 2:
	if (!writer.writeInt("page", page))
	return false;

	writer.incrementState();

	case 3:
	if (!writer.writeInt("qry", qry))
	return false;

	writer.incrementState();

	case 4:
	if (!writer.writeLong("qryReqId", qryReqId))
	return false;

	writer.incrementState();

	case 5:
	if (!writer.writeCollection("vals", vals, MessageCollectionItemType.MSG))
	return false;

	writer.incrementState();

	case 6:
	if (!writer.writeMessage("retry", retry))
	return false;

	writer.incrementState();

	case 7:
	if (!writer.writeInt("segmentId", segmentId))
	return false;

	writer.incrementState();

	case 8:
	if (!writer.writeBoolean("last", last))
	return false;

	writer.incrementState();

	case 9:
	if (!writer.writeString("retryCause", retryCause))
	return false;

	writer.incrementState();

	case 10:
	if (!writer.writeBoolean("removeMapping", removeMapping))
	return false;

	writer.incrementState();
	}

	return true;
	}

	/** {@inheritDoc} */
	@Override public boolean readFrom(ByteBuffer buf, MessageReader reader) {
	reader.setBuffer(buf);

	if (!reader.beforeMessageRead())
	return false;

	switch (reader.state()) {
	case 0:
	allRows = reader.readInt("allRows");

	if (!reader.isLastRead())
	return false;

	reader.incrementState();

	case 1:
	cols = reader.readInt("cols");

	if (!reader.isLastRead())
	return false;

	reader.incrementState();

	case 2:
	page = reader.readInt("page");

	if (!reader.isLastRead())
	return false;

	reader.incrementState();

	case 3:
	qry = reader.readInt("qry");

	if (!reader.isLastRead())
	return false;

	reader.incrementState();

	case 4:
	qryReqId = reader.readLong("qryReqId");

	if (!reader.isLastRead())
	return false;

	reader.incrementState();

	case 5:
	vals = reader.readCollection("vals", MessageCollectionItemType.MSG);

	if (!reader.isLastRead())
	return false;

	reader.incrementState();

	case 6:
	retry = reader.readMessage("retry");

	if (!reader.isLastRead())
	return false;

	reader.incrementState();

	case 7:
	segmentId = reader.readInt("segmentId");

	if (!reader.isLastRead())
	return false;

	reader.incrementState();

	case 8:
	last = reader.readBoolean("last");

	if (!reader.isLastRead())
	return false;

	reader.incrementState();

	case 9:
	retryCause = reader.readString("retryCause");

	if (!reader.isLastRead())
	return false;

	reader.incrementState();

	case 10:
	removeMapping = reader.readBoolean("removeMapping");

	if (!reader.isLastRead())
	return false;

	reader.incrementState();

	}

	return reader.afterMessageRead(GridQueryNextPageResponse.class);
	}

	/** {@inheritDoc} */
	@Override public short directType() {
	return 109;
	}

	/** {@inheritDoc} */
	@Override public byte fieldsCount() {
	return 11;
	}

	/**
	* @return Retry topology version.
	*/
	public AffinityTopologyVersion retry() {
	return retry;
	}

	/**
	* @param retry Retry topology version.
	*/
	public void retry(AffinityTopologyVersion retry) {
	this.retry = retry;
	}

	/**
	* @return Retry Ccause message.
	*/
	public String retryCause() {
	return retryCause;
	}

	/**
	* @param retryCause Retry Ccause message.
	*/
	public void retryCause(String retryCause){
	this.retryCause = retryCause;
	}

	/**
	* @return Last page flag.
	*/
	public boolean last() {
	return last;
	}

	/**
	* @param last Last page flag.
	*/
	public void last(boolean last) {
	this.last = last;
	}

	/**
	* @param removeMapping Remove mapping flag.
	*/
	public void removeMapping(boolean removeMapping) {
	this.removeMapping = removeMapping;
	}

	/**
	* @return Remove mapping flag.
	*/
	public boolean removeMapping() {
	return removeMapping;
	}

	/** {@inheritDoc} */
	@Override public String toString() {
	return S.toString(GridQueryNextPageResponse.class, this,
	"valsSize", vals != null ? vals.size() : 0,
	"rowsSize", plainRows != null ? plainRows.size() : 0);
	}
	}