package com.trendmicro.grid.acl.metadata;
   
   import net.sf.tinyjee.util.Assert;
   
   import java.io.Serializable;
   import java.util.Collection;
   import java.util.Collections;
   
   /**
   * Defines the instructions required to process a validation request on a Meta element.
   *
   * @author juergen_kellerer, 2010-11-30
   * @version 1.0
   */
  public class ValidationInstructions implements Serializable {
  
  	private static final long serialVersionUID = 1935531867355113339L;
  
  	private String activeProfileName;
  	private Collection<String> roles;
  	private AccessLevel level;
  
  	public ValidationInstructions(String activeProfileName, AccessLevel level, Collection<String> roles) {
  		Assert.assertNotNull("activeProfileName", activeProfileName);
  		this.activeProfileName = activeProfileName;
  		this.level = level == null ? AccessLevel.PUBLIC : level;
  		this.roles = roles == null ? Collections.<String>emptySet() : roles;
  	}
  
  	public String getActiveProfileName() {
  		return activeProfileName;
  	}
  
  	public Collection<String> getRoles() {
  		return roles;
  	}
  
  	public AccessLevel getLevel() {
  		return level;
  	}
  
  	/**
  	 * Returns true if the given meta element protection level is visible with regards to
  	 * the protection level of the current context.
  	 *
  	 * @param elementLevel the protection level of the Meta element to test.
  	 * @return true if a Meta element may be visible.
  	 */
  	public boolean isElementVisible(AccessLevel elementLevel) {
  		if (elementLevel == null)
  			elementLevel = AccessLevel.PRIVATE;
  		return level.ordinal() <= elementLevel.ordinal();
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	@Override
  	public boolean equals(Object o) {
  		if (this == o) return true;
  		if (!(o instanceof ValidationInstructions)) return false;
  		ValidationInstructions that = (ValidationInstructions) o;
  		if (!activeProfileName.equals(that.activeProfileName)) return false;
  		return level == that.level && roles.equals(that.roles);
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	@Override
  	public int hashCode() {
  		int result = activeProfileName.hashCode();
  		result = 31 * result + roles.hashCode();
  		result = 31 * result + level.hashCode();
  		return result;
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	@Override
  	public String toString() {
  		return "ValidationInstructions{" +
  				"activeProfileName='" + activeProfileName + '\'' +
  				", roles=" + roles +
  				", level=" + level +
  				'}';
  	}
  }