org.apache.slider.server.appmaster.rpc.SliderClusterProtocolProxy.java Source code

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Here is the source code for org.apache.slider.server.appmaster.rpc.SliderClusterProtocolProxy.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.slider.server.appmaster.rpc;

import com.google.protobuf.RpcController;
import com.google.protobuf.ServiceException;
import org.apache.hadoop.ipc.ProtobufHelper;
import org.apache.hadoop.ipc.ProtocolSignature;
import org.apache.hadoop.ipc.RPC;
import org.apache.hadoop.ipc.RemoteException;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.slider.api.SliderClusterProtocol;
import org.apache.slider.api.proto.Messages;

import java.io.IOException;
import java.net.InetSocketAddress;

public class SliderClusterProtocolProxy implements SliderClusterProtocol {

    private static final RpcController NULL_CONTROLLER = null;
    private final SliderClusterProtocolPB endpoint;
    private final InetSocketAddress address;

    public SliderClusterProtocolProxy(SliderClusterProtocolPB endpoint, InetSocketAddress address) {
        this.endpoint = endpoint;
        this.address = address;
    }

    private IOException convert(ServiceException se) {
        IOException ioe = ProtobufHelper.getRemoteException(se);
        if (ioe instanceof RemoteException) {
            RemoteException remoteException = (RemoteException) ioe;
            return new RemoteException(remoteException.getClassName(),
                    address.toString() + ": " + remoteException.getMessage());
        }
        return ioe;
    }

    @Override
    public Messages.StopClusterResponseProto stopCluster(Messages.StopClusterRequestProto request)
            throws IOException, YarnException {
        try {
            return endpoint.stopCluster(NULL_CONTROLLER, request);
        } catch (ServiceException e) {
            throw convert(e);
        }
    }

    @Override
    public Messages.FlexClusterResponseProto flexCluster(Messages.FlexClusterRequestProto request)
            throws IOException, YarnException {
        try {
            return endpoint.flexCluster(NULL_CONTROLLER, request);
        } catch (ServiceException e) {
            throw convert(e);
        }
    }

    @Override
    public Messages.GetJSONClusterStatusResponseProto getJSONClusterStatus(
            Messages.GetJSONClusterStatusRequestProto request) throws IOException, YarnException {
        try {
            return endpoint.getJSONClusterStatus(NULL_CONTROLLER, request);
        } catch (ServiceException e) {
            throw convert(e);
        }
    }

    @Override
    public Messages.GetInstanceDefinitionResponseProto getInstanceDefinition(
            Messages.GetInstanceDefinitionRequestProto request) throws IOException, YarnException {
        try {
            return endpoint.getInstanceDefinition(NULL_CONTROLLER, request);
        } catch (ServiceException e) {
            throw convert(e);
        }
    }

    @Override
    public Messages.ListNodeUUIDsByRoleResponseProto listNodeUUIDsByRole(
            Messages.ListNodeUUIDsByRoleRequestProto request) throws IOException, YarnException {
        try {
            return endpoint.listNodeUUIDsByRole(NULL_CONTROLLER, request);
        } catch (ServiceException e) {
            throw convert(e);
        }
    }

    @Override
    public Messages.GetNodeResponseProto getNode(Messages.GetNodeRequestProto request)
            throws IOException, YarnException {
        try {
            return endpoint.getNode(NULL_CONTROLLER, request);
        } catch (ServiceException e) {
            throw convert(e);
        }
    }

    @Override
    public Messages.GetClusterNodesResponseProto getClusterNodes(Messages.GetClusterNodesRequestProto request)
            throws IOException, YarnException {
        try {
            return endpoint.getClusterNodes(NULL_CONTROLLER, request);
        } catch (ServiceException e) {
            throw convert(e);
        }
    }

    @Override
    public Messages.EchoResponseProto echo(Messages.EchoRequestProto request) throws IOException, YarnException {
        try {
            return endpoint.echo(NULL_CONTROLLER, request);
        } catch (ServiceException e) {
            throw convert(e);
        }
    }

    @Override
    public Messages.KillContainerResponseProto killContainer(Messages.KillContainerRequestProto request)
            throws IOException, YarnException {
        try {
            return endpoint.killContainer(NULL_CONTROLLER, request);
        } catch (ServiceException e) {
            throw convert(e);
        }
    }

    @Override
    public Messages.AMSuicideResponseProto amSuicide(Messages.AMSuicideRequestProto request)
            throws IOException, YarnException {
        try {
            return endpoint.amSuicide(NULL_CONTROLLER, request);
        } catch (ServiceException e) {
            throw convert(e);
        }
    }

    @Override
    public ProtocolSignature getProtocolSignature(String protocol, long clientVersion, int clientMethodsHash)
            throws IOException {
        if (!protocol.equals(RPC.getProtocolName(SliderClusterProtocolPB.class))) {
            throw new IOException("Serverside implements " + RPC.getProtocolName(SliderClusterProtocolPB.class)
                    + ". The following requested protocol is unknown: " + protocol);
        }

        return ProtocolSignature.getProtocolSignature(clientMethodsHash,
                RPC.getProtocolVersion(SliderClusterProtocol.class), SliderClusterProtocol.class);
    }

    @Override
    public long getProtocolVersion(String protocol, long clientVersion) throws IOException {
        return SliderClusterProtocol.versionID;
    }
}