code: /*
   * Copyright © 2014-2017 EntIT Software LLC, a Micro Focus company (L.P.)
   *
   * 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 io.cloudslang.orchestrator.entities;
  
  import io.cloudslang.score.facade.entities.Execution;
  import org.apache.commons.lang.Validate;
  import org.apache.commons.lang.builder.EqualsBuilder;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  import java.util.Objects;
  
  /**
   * User: zruya
   * Date: 08/09/13
   * Time: 17:21
   */
  public class SplitMessage implements Message {
  	private static final long serialVersionUID = -720851148155732731L;
  
      private int basicSplitWeight = Integer.getInteger("basic.split.weight",3);
  
  	private final String splitId;
      private final Execution parent;
      private final List<Execution> children;
      private final int totalNumberOfBranches;
      private final boolean executable;
  
      public SplitMessage(String splitId,
                          Execution parent,
                          List<Execution> children,
                          int totalNumberOfBranches,
                          boolean executable) {
          Validate.notNull(splitId, "splitId cannot be null");
          Validate.notNull(parent, "parent cannot be null");
          Validate.notNull(children, "children cannot be null");
          Validate.notEmpty(children, "cannot create a split message without any children");
  
          this.splitId = splitId;
          this.parent = parent;
          this.children = new ArrayList<>(children);
          this.totalNumberOfBranches = totalNumberOfBranches;
          this.executable = executable;
      }
  
      public Execution getParent() {
          return parent;
      }
  
      public List<Execution> getChildren() {
          return Collections.unmodifiableList(children);
      }
  
      public String getSplitId() {
          return splitId;
      }
  
      public boolean isExecutable() {
          return executable;
      }
  
  	@Override
  	public int getWeight() {
  		return children.size() * basicSplitWeight;
  	}
  
  	@Override
  	public String getId() {
  		return parent.getExecutionId().toString() + parent.getSystemContext().getBranchId();
  	}
  
  	@Override
  	public List<Message> shrink(List<Message> messages) {
  		return messages; // do nothing
  	}
  
      public int getTotalNumberOfBranches() {
          return totalNumberOfBranches;
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) return true;
          if (!(o instanceof SplitMessage)) return false;
  
          SplitMessage that = (SplitMessage) o;
  
          return new EqualsBuilder()
                  .append(this.splitId, that.splitId)
                  .append(this.parent, that.parent)
                  .append(this.children, that.children)
                  .append(this.totalNumberOfBranches, that.totalNumberOfBranches)
                  .append(this.executable, that.executable)
                  .append(this.totalNumberOfBranches, that.totalNumberOfBranches)
                  .isEquals();
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(
  		        this.splitId,
  		        this.parent,
  		        this.children,
                  this.totalNumberOfBranches,
                  this.totalNumberOfBranches,
                  this.executable);
      }
  }
  