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• ListLaneView.java

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swim.runtime.lane.ListLaneView Maven / Gradle / Ivy

// Copyright 2015-2019 SWIM.AI inc.
//
// Licensed 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 swim.runtime.lane;

import java.util.AbstractMap;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.Map;
import swim.api.Link;
import swim.api.SwimContext;
import swim.api.agent.AgentContext;
import swim.api.data.ListData;
import swim.api.http.function.DecodeRequestHttp;
import swim.api.http.function.DidRequestHttp;
import swim.api.http.function.DidRespondHttp;
import swim.api.http.function.DoRespondHttp;
import swim.api.http.function.WillRequestHttp;
import swim.api.http.function.WillRespondHttp;
import swim.api.lane.Lane;
import swim.api.lane.ListLane;
import swim.api.lane.function.DidCommand;
import swim.api.lane.function.DidEnter;
import swim.api.lane.function.DidLeave;
import swim.api.lane.function.DidUplink;
import swim.api.lane.function.WillCommand;
import swim.api.lane.function.WillEnter;
import swim.api.lane.function.WillLeave;
import swim.api.lane.function.WillUplink;
import swim.concurrent.Conts;
import swim.observable.function.DidClear;
import swim.observable.function.DidDrop;
import swim.observable.function.DidMoveIndex;
import swim.observable.function.DidRemoveIndex;
import swim.observable.function.DidTake;
import swim.observable.function.DidUpdateIndex;
import swim.observable.function.WillClear;
import swim.observable.function.WillDrop;
import swim.observable.function.WillMoveIndex;
import swim.observable.function.WillRemoveIndex;
import swim.observable.function.WillTake;
import swim.observable.function.WillUpdateIndex;
import swim.structure.Form;
import swim.util.KeyedList;

public class ListLaneView extends LaneView implements ListLane {
  protected final AgentContext agentContext;
  protected Form valueForm;

  protected int flags;
  protected ListLaneModel laneBinding;
  protected ListData dataView;

  ListLaneView(AgentContext agentContext, Form valueForm, int flags, Object observers) {
    super(observers);
    this.agentContext = agentContext;
    this.valueForm = valueForm;
    this.flags = flags;
  }

  public ListLaneView(AgentContext agentContext, Form valueForm) {
    this(agentContext, valueForm, 0, null);
  }

  @Override
  public AgentContext agentContext() {
    return this.agentContext;
  }

  @Override
  public ListLaneModel getLaneBinding() {
    return this.laneBinding;
  }

  void setLaneBinding(ListLaneModel laneBinding) {
    this.laneBinding = laneBinding;
    this.dataView = laneBinding.data.valueForm(this.valueForm);
  }

  @Override
  public ListLaneModel createLaneBinding() {
    return new ListLaneModel(this.flags);
  }

  @Override
  public final Form valueForm() {
    return this.valueForm;
  }

  @Override
  public  ListLaneView valueForm(Form valueForm) {
    return new ListLaneView(this.agentContext, valueForm, this.flags,
                                typesafeObservers(this.observers));
  }

  @Override
  public  ListLaneView valueClass(Class valueClass) {
    return valueForm(Form.forClass(valueClass));
  }

  public void setValueForm(Form valueForm) {
    this.valueForm = valueForm;
  }

  protected Object typesafeObservers(Object observers) {
    // TODO: filter out WillUpdateIndex, DidUpdateIndex,
    //       WillMoveIndex, DidMoveIndex, WillRemoveIndex, DidRemoveIndex,
    //       WillDrop, DidDrop, WillTake, DidTake, WillClear, DidClear
    return observers;
  }

  public final boolean isResident() {
    return (this.flags & RESIDENT) != 0;
  }

  @Override
  public ListLaneView isResident(boolean isResident) {
    if (isResident) {
      this.flags |= RESIDENT;
    } else {
      this.flags &= ~RESIDENT;
    }
    final ListLaneModel laneBinding = this.laneBinding;
    if (laneBinding != null) {
      laneBinding.isResident(isResident);
    }
    return this;
  }

  void didSetResident(boolean isResident) {
    if (isResident) {
      this.flags |= RESIDENT;
    } else {
      this.flags &= ~RESIDENT;
    }
  }

  public final boolean isTransient() {
    return (this.flags & TRANSIENT) != 0;
  }

  @Override
  public ListLaneView isTransient(boolean isTransient) {
    if (isTransient) {
      this.flags |= TRANSIENT;
    } else {
      this.flags &= ~TRANSIENT;
    }
    final ListLaneModel laneBinding = this.laneBinding;
    if (laneBinding != null) {
      laneBinding.isTransient(isTransient);
    }
    return this;
  }

  void didSetTransient(boolean isTransient) {
    if (isTransient) {
      this.flags |= TRANSIENT;
    } else {
      this.flags &= ~TRANSIENT;
    }
  }

  @Override
  public final boolean isSigned() {
    return (this.flags & SIGNED) != 0;
  }

  @Override
  public ListLaneView isSigned(boolean isSigned) {
    didSetSigned(isSigned);

    // note: marked final given access of concurrently accessed volatile objects
    final ListLaneModel laneBinding = this.laneBinding;

    if (laneBinding != null) {
      laneBinding.isSigned(isSigned);
    }

    return this;
  }

  void didSetSigned(boolean isSigned) {
    if (isSigned) {
      this.flags |= SIGNED;
    } else {
      this.flags &= ~SIGNED;
    }
  }

  @Override
  public void close() {
    this.laneBinding.closeLaneView(this);
  }

  @SuppressWarnings("unchecked")
  @Override
  public ListLaneView observe(Object observer) {
    return (ListLaneView) super.observe(observer);
  }

  @SuppressWarnings("unchecked")
  @Override
  public ListLaneView unobserve(Object observer) {
    return (ListLaneView) super.unobserve(observer);
  }

  @Override
  public ListLaneView willUpdate(WillUpdateIndex willUpdate) {
    return observe(willUpdate);
  }

  @Override
  public ListLaneView didUpdate(DidUpdateIndex didUpdate) {
    return observe(didUpdate);
  }

  @Override
  public ListLaneView willMove(WillMoveIndex willMove) {
    return observe(willMove);
  }

  @Override
  public ListLaneView didMove(DidMoveIndex didMove) {
    return observe(didMove);
  }

  @Override
  public ListLaneView willRemove(WillRemoveIndex willRemove) {
    return observe(willRemove);
  }

  @Override
  public ListLaneView didRemove(DidRemoveIndex didRemove) {
    return observe(didRemove);
  }

  @Override
  public ListLaneView willDrop(WillDrop willDrop) {
    return observe(willDrop);
  }

  @Override
  public ListLaneView didDrop(DidDrop didDrop) {
    return observe(didDrop);
  }

  @Override
  public ListLaneView willTake(WillTake willTake) {
    return observe(willTake);
  }

  @Override
  public ListLaneView didTake(DidTake didTake) {
    return observe(didTake);
  }

  @Override
  public ListLaneView willClear(WillClear willClear) {
    return observe(willClear);
  }

  @Override
  public ListLaneView didClear(DidClear didClear) {
    return observe(didClear);
  }

  @Override
  public ListLaneView willCommand(WillCommand willCommand) {
    return observe(willCommand);
  }

  @Override
  public ListLaneView didCommand(DidCommand didCommand) {
    return observe(didCommand);
  }

  @Override
  public ListLaneView willUplink(WillUplink willUplink) {
    return observe(willUplink);
  }

  @Override
  public ListLaneView didUplink(DidUplink didUplink) {
    return observe(didUplink);
  }

  @Override
  public ListLaneView willEnter(WillEnter willEnter) {
    return observe(willEnter);
  }

  @Override
  public ListLaneView didEnter(DidEnter didEnter) {
    return observe(didEnter);
  }

  @Override
  public ListLaneView willLeave(WillLeave willLeave) {
    return observe(willLeave);
  }

  @Override
  public ListLaneView didLeave(DidLeave didLeave) {
    return observe(didLeave);
  }

  @Override
  public ListLaneView decodeRequest(DecodeRequestHttp