DistributeItemCostsActivityInformation.java

package module.mission.domain.activity;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;

import module.finance.util.Money;
import module.mission.domain.Mission;
import module.mission.domain.MissionFinancer;
import module.mission.domain.MissionItem;
import module.mission.domain.MissionItemFinancer;
import module.mission.domain.MissionProcess;
import module.workflow.activities.ActivityInformation;
import module.workflow.activities.WorkflowActivity;

public class DistributeItemCostsActivityInformation extends ActivityInformation<MissionProcess> implements Serializable {

    public static class MissionItemFinancerBean implements Serializable {
        private static final long serialVersionUID = 1L;

        private final MissionFinancer missionFinancer;
        private Money amount;

        public MissionItemFinancerBean(final MissionFinancer missionFinancer, final Money amount) {
            this.missionFinancer = missionFinancer;
            setAmount(amount);
        }

        public MissionItemFinancerBean(final MissionFinancer missionFinancer) {
            this(missionFinancer, Money.ZERO);
        }

        public MissionItemFinancerBean(final MissionItemFinancer missionItemFinancer) {
            this(missionItemFinancer.getMissionFinancer(), missionItemFinancer.getAmount());
        }

        public MissionFinancer getMissionFinancer() {
            return missionFinancer;
        }

        public Money getAmount() {
            return amount;
        }

        public void setAmount(Money amount) {
            this.amount = amount;
        }
    }

    public static class MissionItemFinancerBeanCollection extends ArrayList<MissionItemFinancerBean> {

        public boolean contains(final MissionFinancer missionFinancer) {
            for (final MissionItemFinancerBean missionItemFinancerBean : this) {
                if (missionFinancer == missionItemFinancerBean.getMissionFinancer()) {
                    return true;
                }
            }
            return false;
        }

        public boolean containsWithValue(final MissionFinancer missionFinancer) {
            for (final MissionItemFinancerBean missionItemFinancerBean : this) {
                if (missionFinancer == missionItemFinancerBean.getMissionFinancer()
                        && missionItemFinancerBean.getAmount() != null && missionItemFinancerBean.getAmount().isPositive()) {
                    return true;
                }
            }
            return false;
        }

    }

    private MissionItem missionItem;
    private final MissionItemFinancerBeanCollection missionItemFinancerBeans = new MissionItemFinancerBeanCollection();

    public DistributeItemCostsActivityInformation(final MissionProcess missionProcess,
            final WorkflowActivity<MissionProcess, ? extends ActivityInformation<MissionProcess>> activity) {
        super(missionProcess, activity);
    }

    @Override
    public boolean hasAllneededInfo() {
        return false;
    }

    public MissionItem getMissionItem() {
        return missionItem;
    }

    public void setMissionItem(final MissionItem missionItem) {
        this.missionItem = missionItem;
        missionItemFinancerBeans.clear();
        if (missionItem != null) {
            for (final MissionItemFinancer missionItemFinancer : missionItem.getMissionItemFinancersSet()) {
                final MissionItemFinancerBean missionItemFinancerBean = new MissionItemFinancerBean(missionItemFinancer);
                missionItemFinancerBeans.add(missionItemFinancerBean);
            }
            final MissionProcess missionProcess = getProcess();
            final Mission mission = missionProcess.getMission();
            for (final MissionFinancer missionFinancer : mission.getFinancerSet()) {
                if (!missionItemFinancerBeans.contains(missionFinancer)) {
                    final MissionItemFinancerBean missionItemFinancerBean = new MissionItemFinancerBean(missionFinancer);
                    missionItemFinancerBeans.add(missionItemFinancerBean);
                }
            }
        }
    }

    public MissionItemFinancerBeanCollection getMissionItemFinancerBeans() {
        return missionItemFinancerBeans;
    }

    public void setMissionItemFinancerBeans(Collection<MissionItemFinancerBean> missionItemFinancerBeans) {
        this.missionItemFinancerBeans.clear();
        this.missionItemFinancerBeans.addAll(missionItemFinancerBeans);
    }

    public void distributeMissionItemFinancerValues() {
        final Money money = getMissionItem().getValue();
        int numberFinancers = missionItemFinancerBeans.size();
        final Money shareValues[] = money.allocate(numberFinancers);
        int i = 0;
        for (final MissionItemFinancerBean missionItemFinancerBean : missionItemFinancerBeans) {
            missionItemFinancerBean.setAmount(shareValues[i++]);
        }
    }

}