http://git-wip-us.apache.org/repos/asf/ignite/blob/86078460/modules/hadoop/src/main/java/org/apache/ignite/internal/processors/hadoop/taskexecutor/external/communication/HadoopTcpNioCommunicationClient.java
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b/modules/hadoop/src/main/java/org/apache/ignite/internal/processors/hadoop/taskexecutor/external/communication/HadoopTcpNioCommunicationClient.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.internal.processors.hadoop.taskexecutor.external.communication;
+
+import org.apache.ignite.IgniteCheckedException;
+import org.apache.ignite.internal.processors.hadoop.message.HadoopMessage;
+import
org.apache.ignite.internal.processors.hadoop.taskexecutor.external.HadoopProcessDescriptor;
+import org.apache.ignite.internal.util.nio.GridNioFuture;
+import org.apache.ignite.internal.util.nio.GridNioSession;
+import org.apache.ignite.internal.util.typedef.internal.S;
+import org.apache.ignite.internal.util.typedef.internal.U;
+
+/**
+ * Grid client for NIO server.
+ */
+public class HadoopTcpNioCommunicationClient extends
HadoopAbstractCommunicationClient {
+ /** Socket. */
+ private final GridNioSession ses;
+
+ /**
+ * Constructor for test purposes only.
+ */
+ public HadoopTcpNioCommunicationClient() {
+ ses = null;
+ }
+
+ /**
+ * @param ses Session.
+ */
+ public HadoopTcpNioCommunicationClient(GridNioSession ses) {
+ assert ses != null;
+
+ this.ses = ses;
+ }
+
+ /** {@inheritDoc} */
+ @Override public boolean close() {
+ boolean res = super.close();
+
+ if (res)
+ ses.close();
+
+ return res;
+ }
+
+ /** {@inheritDoc} */
+ @Override public void forceClose() {
+ super.forceClose();
+
+ ses.close();
+ }
+
+ /** {@inheritDoc} */
+ @Override public void sendMessage(HadoopProcessDescriptor desc,
HadoopMessage msg)
+ throws IgniteCheckedException {
+ if (closed())
+ throw new IgniteCheckedException("Client was closed: " + this);
+
+ GridNioFuture<?> fut = ses.send(msg);
+
+ if (fut.isDone())
+ fut.get();
+ }
+
+ /** {@inheritDoc} */
+ @Override public long getIdleTime() {
+ long now = U.currentTimeMillis();
+
+ // Session can be used for receiving and sending.
+ return Math.min(Math.min(now - ses.lastReceiveTime(), now -
ses.lastSendScheduleTime()),
+ now - ses.lastSendTime());
+ }
+
+ /** {@inheritDoc} */
+ @Override public String toString() {
+ return S.toString(HadoopTcpNioCommunicationClient.class, this,
super.toString());
+ }
+}
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