MoveRelationForMutualDependTODOItem.java

package jdepend.util.todolist;

import jdepend.framework.exception.JDependException;
import jdepend.framework.util.MathUtil;
import jdepend.model.Relation;

public final class MoveRelationForMutualDependTODOItem extends MoveRelationTODOItem {

	public MoveRelationForMutualDependTODOItem(TODORelationData relationData) {
		super(relationData);
	}

	protected boolean decision() throws JDependException {
		if (!this.getRelationData().getRelation().getAttentionType().equals(Relation.MutualDependAttentionType)) {
			throw new JDependException("该关系不是彼此依赖");
		}
		// 根据耦合类型判断需要移动Relation
		boolean isCurrentMutual = !MathUtil.isZero(getRelationData().currentCaIntensity)
				&& !MathUtil.isZero(getRelationData().currentCeIntensity);
		boolean isDependMutual = !MathUtil.isZero(getRelationData().dependCaIntensity)
				&& !MathUtil.isZero(getRelationData().dependCeIntensity);

		boolean decision = false;
		if (isCurrentMutual && !isDependMutual) {
			if (MathUtil.isZero(getRelationData().dependCeIntensity)) {
				this.moveRelationInfo = new MoveRelationInfo(getRelationData().depend, getRelationData().dependOther);
				this.moveRelationInfo.setTargetComponent(this.getRelationData().getRelation().getCurrent()
						.getComponent());
				this.moveRelationInfo.setChangeDir(true);
				decision = true;
			}
		} else if (!isCurrentMutual && isDependMutual) {
			if (MathUtil.isZero(getRelationData().currentCaIntensity)) {
				this.moveRelationInfo = new MoveRelationInfo(getRelationData().current, getRelationData().currentOther);
				this.moveRelationInfo.setTargetComponent(this.getRelationData().getRelation().getDepend()
						.getComponent());
				this.moveRelationInfo.setChangeDir(true);
				decision = true;
			}
		}

		if (!decision) {
			// 根据耦合值判断需要移动Relation
			if (MathUtil.isZero(getRelationData().currentCaIntensity)
					|| MathUtil.isZero(getRelationData().dependCeIntensity)) {
				if (getRelationData().currentCeIntensity > getRelationData().dependCaIntensity) {
					this.moveRelationInfo = new MoveRelationInfo(getRelationData().depend,
							getRelationData().dependOther);
					this.moveRelationInfo.setTargetComponent(this.getRelationData().getRelation().getCurrent()
							.getComponent());
				} else {
					this.moveRelationInfo = new MoveRelationInfo(getRelationData().current,
							getRelationData().currentOther);
					this.moveRelationInfo.setTargetComponent(this.getRelationData().getRelation().getDepend()
							.getComponent());
				}
				this.moveRelationInfo.setChangeDir(true);
			} else {
				Float currentIntensity = getRelationData().currentCaIntensity + getRelationData().currentCeIntensity;
				Float dependIntensity = getRelationData().dependCaIntensity + getRelationData().dependCeIntensity;
				if (currentIntensity > dependIntensity) {
					this.moveRelationInfo = new MoveRelationInfo(getRelationData().depend,
							getRelationData().dependOther);
					this.moveRelationInfo.setTargetComponent(this.getRelationData().getRelation().getCurrent()
							.getComponent());
				} else {
					this.moveRelationInfo = new MoveRelationInfo(getRelationData().current,
							getRelationData().currentOther);
					this.moveRelationInfo.setTargetComponent(this.getRelationData().getRelation().getDepend()
							.getComponent());
				}
				this.moveRelationInfo.setChangeDir(false);
			}
		}
		return true;
	}

	@Override
	public String getAccording() {
		return "两个组件存在彼此依赖，应该避免强度比较弱的依赖线";
	}

	@Override
	public String getContent() {
		return this.getRelationData().getRelation().getCurrent().getName() + " 与 "
				+ this.getRelationData().getRelation().getDepend().getName() + " 存在彼此依赖，并且前者对后者的依赖较少，请解决该依赖";
	}
}