Crud.java

/*
 * JBoss, Home of Professional Open Source.
 *
 * See the LEGAL.txt file distributed with this work for information regarding copyright ownership and licensing.
 *
 * See the AUTHORS.txt file distributed with this work for a full listing of individual contributors.
 */
package org.teiid.designer.roles;

/**
 * @author blafond
 *
 */
public class Crud {


    @SuppressWarnings("javadoc")
    public enum Type
    {
      CREATE, 
    READ, UPDATE, DELETE, EXECUTE, ALTER
    }
    
    /**
     * CRUD + Execute + Alter boolean values
     */
    @SuppressWarnings("javadoc")
    public Boolean c, r, u, d, e, a;

    public Crud() {
        super();
    }

    /**
     * @param c
     * @param r
     * @param u
     * @param d
     * @param e
     * @param a
     */
    public Crud(Boolean c, Boolean r, Boolean u, Boolean d, Boolean e, Boolean a) {
        super();
        this.c = c;
        this.r = r;
        this.u = u;
        this.d = d;
        this.e = e;
        this.a = a;
    }
    
    /**
     * @param crud
     */
    public Crud(Crud crud) {
        this(crud.c, crud.r, crud.u, crud.d, crud.e, crud.a);
    }

    /**
     * @param obj
     * @return if equivalent
     */
    public boolean equivalent(Object obj) {
        if( obj instanceof Crud ) {
            Crud target = (Crud)obj;
            if( !areSameState(this.c, target.c) ) return false;
            if( !areSameState(this.r, target.r) ) return false; 
            if( !areSameState(this.u, target.u) ) return false; 
            if( !areSameState(this.d, target.d) ) return false; 
            if( !areSameState(this.e, target.e) ) return false; 
            if( !areSameState(this.a, target.a) ) return false; 
        }
        return super.equals(obj);
    }
    
    private boolean areSameState(Boolean a, Boolean b ) {
        if( (a == null && b == null) || 
            (a == null && b == Boolean.FALSE) || 
            (b == null && a == Boolean.FALSE) ) {
            return true;
        }

        return false;
    }
    
    private boolean areSameBooleanValues(Boolean a, Boolean b ) {
        if( (a == null && b == null) || 
            (a == Boolean.FALSE && b == Boolean.FALSE) || 
            (a == Boolean.TRUE && b == Boolean.TRUE) ) {
            return true;
        }

        return false;
    }
    
    /**
     * @param target
     * @return if same
     */
    public boolean isSameAs(Crud target) {
        if( areSameBooleanValues(this.c, target.c) &&
            areSameBooleanValues(this.r, target.r) &&
            areSameBooleanValues(this.u, target.u) &&
            areSameBooleanValues(this.d, target.d) &&
            areSameBooleanValues(this.e, target.e) &&
            areSameBooleanValues(this.a, target.a) ) {
            return true;
        }
        return false;
    }
    
    /**
     * @param value
     * @return CRUD type
     */
    public static Crud.Type getCrudType(int value ) {
        if( value == 2 ) {
            return Crud.Type.CREATE;
        }
        if( value == 3 ) {
            return Crud.Type.READ;
        }
        if( value == 4 ) {
            return Crud.Type.UPDATE;
        }
        if( value == 5 ) {
            return Crud.Type.DELETE;
        }
        if( value == 6 ) {
            return Crud.Type.EXECUTE;
        }
        if( value == 7 ) {
            return Crud.Type.ALTER;
        }
        return null;
    }

    /** (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder("Crud: "); //$NON-NLS-1$
        sb.append("\n\t").append("c = " + c.booleanValue()); //$NON-NLS-1$ //$NON-NLS-2$
        sb.append("\n\t").append("r = " + r.booleanValue()); //$NON-NLS-1$ //$NON-NLS-2$
        sb.append("\n\t").append("u = " + u.booleanValue()); //$NON-NLS-1$ //$NON-NLS-2$
        sb.append("\n\t").append("d = " + d.booleanValue()); //$NON-NLS-1$ //$NON-NLS-2$
        sb.append("\n\t").append("e = " + e.booleanValue()); //$NON-NLS-1$ //$NON-NLS-2$
        sb.append("\n\t").append("a = " + a.booleanValue()); //$NON-NLS-1$ //$NON-NLS-2$
        return sb.toString();
    }

    @Override
    public Crud clone() {
        return new Crud(c, r, u, d, e, a);
    }
}