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.ConvertorExecutor;
  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     private final ConvertorExecutor convertorExecutor;
  35     private final VersionDatapathIdConvertorData data;
  36
  37     protected FlowService(final RequestContextStack requestContextStack, final DeviceContext deviceContext, final Class<O> clazz, final ConvertorExecutor convertorExecutor) {
  38         super(requestContextStack, deviceContext, clazz);
  39         this.convertorExecutor = convertorExecutor;
  40         data = new VersionDatapathIdConvertorData(getVersion());
  41         data.setDatapathId(getDatapathId());
  42     }
  43
  44     @Override
  45     protected OfHeader buildRequest(final Xid xid, final FlowModInputBuilder input) {
  46         input.setXid(xid.getValue());
  47         return input.build();
  48     }
  49
  50     List<FlowModInputBuilder> toFlowModInputs(final Flow input) {
  51         final Optional<List<FlowModInputBuilder>> flowModInputBuilders = convertorExecutor.convert(input, data);
  52         return flowModInputBuilders.orElse(Collections.emptyList());
  53     }
  54
  55     ListenableFuture<RpcResult<O>> processFlowModInputBuilders(final List<FlowModInputBuilder> ofFlowModInputs) {
  56         final List<ListenableFuture<RpcResult<O>>> partialFutures = new ArrayList<>(ofFlowModInputs.size());
  57
  58         for (final FlowModInputBuilder flowModInputBuilder : ofFlowModInputs) {
  59             partialFutures.add(handleServiceCall(flowModInputBuilder));
  60         }
  61
  62         final ListenableFuture<List<RpcResult<O>>> allFutures = Futures.successfulAsList(partialFutures);
  63         final SettableFuture<RpcResult<O>> finalFuture = SettableFuture.create();
  64         Futures.addCallback(allFutures, new FutureCallback<List<RpcResult<O>>>() {
  65             @Override
  66             public void onSuccess(final List<RpcResult<O>> results) {
  67                 final ArrayList<RpcError> errors = new ArrayList();
  68                 for (RpcResult<O> flowModResult : results) {
  69                     if (flowModResult == null) {
  70                         errors.add(RpcResultBuilder.newError(
  71                                 RpcError.ErrorType.PROTOCOL, OFConstants.APPLICATION_TAG,
  72                                 "unexpected flowMod result (null) occurred"));
  73                     } else if (!flowModResult.isSuccessful()) {
  74                         errors.addAll(flowModResult.getErrors());
  75                     }
  76                 }
  77
  78                 final RpcResultBuilder<O> rpcResultBuilder;
  79                 if (errors.isEmpty()) {
  80                     rpcResultBuilder = RpcResultBuilder.success();
  81                 } else {
  82                     rpcResultBuilder = RpcResultBuilder.<O>failed().withRpcErrors(errors);
  83                 }
  84
  85                 finalFuture.set(rpcResultBuilder.build());
  86             }
  87
  88             @Override
  89             public void onFailure(final Throwable t) {
  90                 RpcResultBuilder<O> rpcResultBuilder = RpcResultBuilder.failed();
  91                 finalFuture.set(rpcResultBuilder.build());
  92             }
  93         });
  94
  95         return finalFuture;
  96     }
  97
  98 }