org.ow2.bonita.identity.impl.GroupImpl Maven / Gradle / Ivy

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/**
 * Copyright (C) 2007  Bull S. A. S.
 * Bull, Rue Jean Jaures, B.P.68, 78340, Les Clayes-sous-Bois
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation
 * version 2.1 of the License.
 * This library 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 Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
 * Floor, Boston, MA  02110-1301, USA.
 **/
package org.ow2.bonita.identity.impl;

import java.security.Permission;
import java.util.Collections;
import java.util.HashSet;
import java.util.Properties;
import java.util.Set;

import org.ow2.bonita.identity.GroupOp;
import org.ow2.bonita.identity.Membership;
import org.ow2.bonita.identity.UserOp;

/**
 * @author "Pierre Vigneras"
 * @date Nov 23, 2007
 */
public class GroupImpl implements GroupOp {
  /**
   * 
   */
  private static final long serialVersionUID = -92055174610253039L;

  // private static final Preferences GLOBAL_PREFERENCES =
  // Preferences.userNodeForPackage(GroupImpl.class);
  private static GroupImpl root;

  protected static void setRoot(final String rootId) {
    root = new GroupImpl();
    root.setId(rootId);
    root.setParent(root);
  }

  protected static GroupImpl root() {
    return root;
  }

  private Properties properties;

  // private Preferences preferences;
  private Set permissions;

  private GroupOp parent;

  private String id;

  private Set memberships;

  private Set children;

  protected GroupImpl() {
    init();
  } // Required for ROOT creation and persistence.

  public GroupImpl(final String id) {
    this(id, root);
  }

  public GroupImpl(final String id, final GroupOp parent) {
    init();
    // IdentityServiceOp should set the root id using setRoot() before creating
    // any instances.
    if (root() == null) {
      throw new IllegalStateException("Root is undefined! Use setRoot()!");
    }
    setId(id);
    setParent(parent);
  }

  protected void setId(final String id) {
    if (id == null) {
      throw new IllegalArgumentException("Null id!");
    }
    this.id = id;
  }

  /**
   * @param id
   */
  private void init() {
    this.properties = new Properties();
    // this.preferences = GLOBAL_PREFERENCES.node(id);
    this.permissions = new HashSet();
    this.memberships = new HashSet();
    this.children = new HashSet();
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.ow2.bonita.identity.GroupOp#getChildren()
   */
  public Set getChildren() {
    return children;
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.ow2.bonita.identity.GroupOp#getMemberships()
   */
  public Set getMemberships() {
    return Collections.unmodifiableSet(memberships);
  }

  protected void setMemberships(final Set memberships) {
    if (memberships == null) {
      throw new IllegalArgumentException("Memberships is null!");
    }
    this.memberships = memberships;
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.ow2.bonita.identity.GroupOp#getId()
   */
  public String getId() {
    return id;
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.ow2.bonita.identity.GroupOp#getParent()
   */
  public GroupOp getParent() {
    return parent;
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.ow2.bonita.identity.GroupOp#getPermissions()
   */
  public Set getPermissions() {
    return new HashSet(permissions);
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.ow2.bonita.identity.GroupOp#getPreferences()
   */
  // public Preferences getPreferences() {
  // return preferences;
  // }
  /*
   * (non-Javadoc)
   * 
   * @see org.ow2.bonita.identity.GroupOp#getProperties()
   */
  public Properties getProperties() {
    final Properties result = new Properties();
    result.putAll(properties);
    return result;
  }

  /*
   * (non-Javadoc)
   * 
   * @see org.ow2.bonita.identity.GroupOp#getRoot()
   */
  public GroupOp getRoot() {
    return root();
  }

  protected void setChildren(Set children) {
    if (children == null) {
      throw new IllegalArgumentException("Children is null!");
    }
    this.children = children;
  }

  protected void setParent(GroupOp parent) {
    if (parent == null) {
      throw new IllegalArgumentException("Parent is null!");
    }
    this.parent = parent;
    parent.getChildren().add(this);
  }

  public void setPermissions(final Set permissions) {
    if (permissions == null) {
      throw new IllegalArgumentException("Permissions is null!");
    }
    this.permissions = permissions;
  }

  public void setProperties(Properties properties) {
    if (properties == null) {
      throw new IllegalArgumentException("Properties is null!");
    }
    this.properties = properties;
  }

  /*
   * (non-Javadoc)
   * 
   * @see
   * org.ow2.bonita.identity.GroupOp#hasMember(org.ow2.bonita.identity.UserOp)
   */
  public boolean hasMember(UserOp userOp) {
    return memberships.contains(new MembershipImpl(userOp, this));
  }

  public int hashcode() {
    return id.hashCode();
  }

  public boolean equals(Object o) {
    if (!(o instanceof GroupImpl)) {
      return false;
    }
    if (id == null) {
      return true;
    }
    return id.equals(((GroupImpl) o).getId());
  }

  public String toString() {
    return this.getClass().getName() + "(" + getId() + ")";
  }
}