ReceiptItemAdapter.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2012 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.erp.task;
 
import java.util.Comparator;
import java.util.HashSet;
import org.turro.erp.entity.OrderItem;
import org.turro.erp.entity.OrderReference;
import org.turro.erp.entity.ReceiptItem;
import org.turro.erp.entity.RequiredUsage;
import org.turro.erp.entity.Task;
import org.turro.erp.entity.WorkOrder;
import org.turro.util.CompareUtil;
 
public class ReceiptItemAdapter extends HashSet<ReceiptItem> implements Comparator<ReceiptItem> {
 
  public ReceiptItemAdapter(Task task) {
    addReceipts(task);
  }
  
  public ReceiptItemAdapter(WorkOrder workOrder) {
    for(OrderReference or : workOrder.getOrderReferences()) {
      for(Task task : or.getTasks()) {
        addReceipts(task);
      }
    }
  }
 
  private void addReceipts(Task task) {
    for(RequiredUsage ru : task.getRequiredUsages()) {
      double units = ru.getEstimatedUnits(),
             expected = ru.getExpectedUnits();
      for(OrderItem oi : ru.getOrderItems()) {
        generateReceipts(oi);
      }
      if(units > expected) {
        OrderItem oi = ru.startOrder(ru.convertToReal(units - expected));
        ru.getOrderItems().add(oi);
        generateReceipts(oi);
      }
      
    }
  }
 
  private void generateReceipts(OrderItem oi) {
    double oexpected = oi.getExpectedUnits(),
           oreal = oi.getRealUnits();
    if(oexpected > oreal) {
      ReceiptItem ri = oi.startReceipt(null, oi.convertToReal(oexpected - oreal));
      oi.getReceiptItems().add(ri);
    }
    addAll(oi.getReceiptItems());
  }  
 
  @Override
  public int compare(ReceiptItem o1, ReceiptItem o2) {
    return CompareUtil.compare(getStringId(o1), getStringId(o2));
  }
  
  private String getStringId(ReceiptItem ri) {
    return ri.getOrderItem().getOwnerRequiredUsage().getTask().getOrderReference().getOrderRef() +
           "/" +
           ri.getOrderItem().getOwnerRequiredUsage().getTask().getId() +
           "/" +
           ri.getOrderItem().getOwnerRequiredUsage().getId() +
           "/" +
           ri.getOrderItem().getId();
  }
  
}