source: fedd/abac-src/rtml/src/edu/stanford/rt/credential/ApplicationDomain.java @ e794984

package edu.stanford.rt.credential;

import java.util.Iterator;

import edu.stanford.rt.datatype.*;
import edu.stanford.rt.util.*;
/**
 * @author Ninghui Li, Sandra Qiu<br>
 * 
 * Implementation of <code>ApplicationDomain</code> element.
 *
 */
public class ApplicationDomain extends DomainSpecification
{
        /**
         * Attribute uri (required).
         */
        private String uri;

        /**
         * A flag indicates whether this domain is the built-in system one.
         */
        private boolean isSystemDomain = false;

        /**
         * Constructor for ApplicationDomain.
         * @param uri
         * @param isSystemDomain
         * @param context
         * @throws DomainSpecException
         */
        public ApplicationDomain(
                String uri,
                boolean isSystemDomain,
                RTContext context)
                throws DomainSpecException
        {
                super(context);
                this.uri = uri;
                this.isSystemDomain = isSystemDomain;
        }
        /**
         * Method getUri.
         * @return String
         */
        public String getUri()
        {
                return uri;
        }

        /**
         * Method lookupType.
         *  Look up the DataType declaration by given typeName 
     *  in the current domain. If cannot find one and this domain is 
     *  not system domain, then look up in the system domain.
         * @param typeName
         * @return DataType
         * @throws DomainSpecException
         *      if cannot find a DataType declaration by the given name.
         */
        public DataType lookupType(String typeName)
                throws DomainSpecException
        {
                //RTUtil.debugInfo(" lookupType()>>>> isSystemDomain = " + isSystemDomain);
                DataType type = super.lookupType(typeName);

                if (!isSystemDomain && type == null)
                {
                        type =
                                getContext().getSystemDomain().lookupType(typeName);
                }
                if (type == null)
                {
                        throw new DomainSpecException(
                                "Type '" + typeName + "' not found.");
                }
                return type;
        }

        /**
         * Method lookupRoleDeclaration.
         *      Look up the role declaration by given roleName in the 
     *  current domain. If cannot find one and this domain is not system
     *  domain, then look it up in system domain.
         * @param roleName
         * @return RoleDeclaration
         * @throws DomainSpecException
         *      if cannot find one.
         */
        public RoleDeclaration lookupRoleDeclaration(String roleName)
                throws DomainSpecException
        {
                RTUtil.debugInfo(
                        "DomainSpecification(id="
                                + ((getHashID() == null)
                                        ? "null"
                                        : getHashID().toString())
                                + ") looking up role '"
                                + roleName
                                + "'");

                RoleDeclaration role = super.lookupRoleDeclaration(roleName);
                if (!isSystemDomain && role == null)
                {
                        role =
                                getContext().getSystemDomain().lookupRoleDeclaration(
                                        roleName);
                }
                if (role == null)
                {
                        throw new DomainSpecException(
                                "Role '" + roleName + "' has not been declared.");
                }
                return role;
        }

        public String toString(String indent)
        {
                String thisIndent = indent + "  ";
                StringBuffer sb = new StringBuffer();

                sb.append(thisIndent).append(
                        "ApplicationDomain:  hashID = "
                                + getHashID().toString()
                                + "\n");
                sb.append(thisIndent + "  ").append("uri = ").append(
                        uri).append(
                        "\n");
                sb
                        .append(thisIndent + "  ")
                        .append("PrincipalType = ")
                        .append(getPrincipalType())
                        .append("\n");

                sb.append(thisIndent + "  ").append("Imported Domains: \n");
                try
                {
                        Iterator it = getImportedDomains().keyIterator();
                        while (it.hasNext())
                        {
                                String key = (String) it.next();
                                ApplicationDomain value =
                                        (ApplicationDomain) getImportedDomains().get(key);
                                sb.append(thisIndent + "    ").append(key).append(
                                        "\n");
                                sb.append(thisIndent + "    ").append(
                                        value.getUri()).append(
                                        "\n");

                        }
                }
                catch (DomainSpecException e)
                {
                        e.printStackTrace();
                }

                sb.append(thisIndent + "  ").append("Type Declarations: \n");
                try
                {
                        Iterator it = getTypeDeclarations().keyIterator();
                        while (it.hasNext())
                        {
                                String key = (String) it.next();
                                DataType value =
                                        (DataType) getTypeDeclarations().get(key);

                                sb
                                        .append(thisIndent + "    ")
                                        .append(key)
                    .append("\n")
                                        .append(value.toString(thisIndent + "    "))
                                        .append("\n");
                        }
                }
                catch (DomainSpecException e)
                {
                        e.printStackTrace();
                }

                sb.append(thisIndent + "  ").append("Role Declarations: \n");
                try
                {
                        Iterator it = getRoleDeclarations().keyIterator();
                        while (it.hasNext())
                        {
                                String key = (String) it.next();
                                RoleDeclaration value =
                                        (RoleDeclaration) getRoleDeclarations().get(key);
                                sb.append(thisIndent + "    ").append(key).append(
                                        "\n");
                                sb.append(
                                        value.toString(thisIndent + "    ")).append(
                                        "\n");
                        }
                }
                catch (DomainSpecException e)
                {
                        e.printStackTrace();
                }
                return sb.toString();
        } // end of toString()

        /* (non-Javadoc)
         * @see edu.stanford.rt.credential.DomainSpecification#setHashID(HashID)
         */
        public synchronized void setHashID(HashID hashID)
                throws DomainSpecException
        {
                if (isComplete())
                        throw new DomainSpecException("ApplicationDomain unmodifiable.");
                if (hashID.getHashType() != HashID.APPLICATION_DOMAIN)
                        throw new DomainSpecException("Wrong type of hash id");
                super.setHashID(hashID);
        }

}