openflowplugin-impl/src/main/java/org/opendaylight/openflowplugin/impl/services/FlowService.java

   1 /**
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.openflowplugin.impl.services;
   9
  10 import com.google.common.util.concurrent.FutureCallback;
  11 import com.google.common.util.concurrent.Futures;
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import com.google.common.util.concurrent.SettableFuture;
  14 import java.util.ArrayList;
  15 import java.util.Collections;
  16 import java.util.List;
  17 import java.util.Optional;
  18 import org.opendaylight.openflowplugin.api.OFConstants;
  19 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
  20 import org.opendaylight.openflowplugin.api.openflow.device.RequestContextStack;
  21 import org.opendaylight.openflowplugin.api.openflow.device.Xid;
  22 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorManager;
  23 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.data.VersionDatapathIdConvertorData;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.Flow;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.FlowModInputBuilder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OfHeader;
  27 import org.opendaylight.yangtools.yang.binding.DataObject;
  28 import org.opendaylight.yangtools.yang.common.RpcError;
  29 import org.opendaylight.yangtools.yang.common.RpcResult;
  30 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  31
  32 final class FlowService<O extends DataObject> extends AbstractSimpleService<FlowModInputBuilder, O> {
  33
  34     protected FlowService(final RequestContextStack requestContextStack, final DeviceContext deviceContext, final Class<O> clazz) {
  35         super(requestContextStack, deviceContext, clazz);
  36     }
  37
  38     @Override
  39     protected OfHeader buildRequest(final Xid xid, final FlowModInputBuilder input) {
  40         input.setXid(xid.getValue());
  41         return input.build();
  42     }
  43
  44     List<FlowModInputBuilder> toFlowModInputs(final Flow input) {
  45         final VersionDatapathIdConvertorData data = new VersionDatapathIdConvertorData(getVersion());
  46         data.setDatapathId(getDatapathId());
  47
  48         final Optional<List<FlowModInputBuilder>> flowModInputBuilders = ConvertorManager.getInstance().convert(input, data);
  49         return flowModInputBuilders.orElse(Collections.emptyList());
  50     }
  51
  52     ListenableFuture<RpcResult<O>> processFlowModInputBuilders(final List<FlowModInputBuilder> ofFlowModInputs) {
  53         final List<ListenableFuture<RpcResult<O>>> partialFutures = new ArrayList<>(ofFlowModInputs.size());
  54
  55         for (final FlowModInputBuilder flowModInputBuilder : ofFlowModInputs) {
  56             partialFutures.add(handleServiceCall(flowModInputBuilder));
  57         }
  58
  59         final ListenableFuture<List<RpcResult<O>>> allFutures = Futures.successfulAsList(partialFutures);
  60         final SettableFuture<RpcResult<O>> finalFuture = SettableFuture.create();
  61         Futures.addCallback(allFutures, new FutureCallback<List<RpcResult<O>>>() {
  62             @Override
  63             public void onSuccess(final List<RpcResult<O>> results) {
  64                 final ArrayList<RpcError> errors = new ArrayList();
  65                 for (RpcResult<O> flowModResult : results) {
  66                     if (flowModResult == null) {
  67                         errors.add(RpcResultBuilder.newError(
  68                                 RpcError.ErrorType.PROTOCOL, OFConstants.APPLICATION_TAG,
  69                                 "unexpected flowMod result (null) occurred"));
  70                     } else if (!flowModResult.isSuccessful()) {
  71                         errors.addAll(flowModResult.getErrors());
  72                     }
  73                 }
  74
  75                 final RpcResultBuilder<O> rpcResultBuilder;
  76                 if (errors.isEmpty()) {
  77                     rpcResultBuilder = RpcResultBuilder.success();
  78                 } else {
  79                     rpcResultBuilder = RpcResultBuilder.<O>failed().withRpcErrors(errors);
  80                 }
  81
  82                 finalFuture.set(rpcResultBuilder.build());
  83             }
  84
  85             @Override
  86             public void onFailure(final Throwable t) {
  87                 RpcResultBuilder<O> rpcResultBuilder = RpcResultBuilder.failed();
  88                 finalFuture.set(rpcResultBuilder.build());
  89             }
  90         });
  91
  92         return finalFuture;
  93     }
  94
  95 }