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## org.apache.catalina.realm
Class CombinedRealm

    java.lang.Object
      org.apache.catalina.util.LifecycleBase
          org.apache.catalina.util.LifecycleMBeanBase
              org.apache.catalina.realm.RealmBase
                  org.apache.catalina.realm.CombinedRealm

All Implemented Interfaces:
  MBeanRegistration, Lifecycle, Realm

Direct Known Subclasses:
  LockOutRealm

    public class CombinedRealm

extends RealmBase

Realm implementation that contains one or more realms. Authentication is attempted for each realm in the order they were configured. If any realm authenticates the user then the authentication succeeds. When combining realms usernames should be unique across all combined realms.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.catalina.realm.RealmBase
`RealmBase.AllRolesMode`

Field Summary
`protected static String` | `name` Descriptive information about this Realm implementation.
`protected List<Realm>` | `realms` The list of Realms contained by this Realm.

Fields inherited from class org.apache.catalina.realm.RealmBase
`allRolesMode, container, containerLog, digest, digestEncoding, info, md, md5Encoder, md5Helper, realmPath, sm, stripRealmForGss, support, validate, x509UsernameRetriever, x509UsernameRetrieverClassName`

Fields inherited from class org.apache.catalina.util.LifecycleMBeanBase
`mserver`

Fields inherited from interface org.apache.catalina.Lifecycle
`AFTER_DESTROY_EVENT, AFTER_INIT_EVENT, AFTER_START_EVENT, AFTER_STOP_EVENT, BEFORE_DESTROY_EVENT, BEFORE_INIT_EVENT, BEFORE_START_EVENT, BEFORE_STOP_EVENT, CONFIGURE_START_EVENT, CONFIGURE_STOP_EVENT, PERIODIC_EVENT, START_EVENT, STOP_EVENT`

Constructor Summary
`CombinedRealm()`

Method Summary
`void` | `addRealm(Realm theRealm)` Add a realm to the list of realms that will be used to authenticate users.
`Principal` | `authenticate(GSSContext gssContext, boolean storeCreds)` Return the Principal associated with the specified `GSSContext`.
`Principal` | `authenticate(String username, String credentials)` Return the Principal associated with the specified username and credentials, if there is one; otherwise return `null`.
`Principal` | `authenticate(String username, String clientDigest, String nonce, String nc, String cnonce, String qop, String realmName, String md5a2)` Return the Principal associated with the specified username, which matches the digest calculated using the given parameters using the method described in RFC 2069; otherwise return `null`.
`Principal` | `authenticate(X509Certificate[] certs)` Return the Principal associated with the specified chain of X509 client certificates.
`protected String` | `getName()` Return a short name for this Realm implementation, for use in log messages.
`protected String` | `getPassword(String username)` Return the password associated with the given principal's user name.
`protected Principal` | `getPrincipal(String username)` Return the Principal associated with the given user name.
`ObjectName[]` | `getRealms()` Return the set of Realms that this Realm is wrapping
`void` | `setContainer(Container container)` Set the Container with which this Realm has been associated.
`protected void` | `startInternal()` Prepare for the beginning of active use of the public methods of this component and implement the requirements of `LifecycleBase.startInternal()`.
`protected void` | `stopInternal()` Gracefully terminate the active use of the public methods of this component and implement the requirements of `LifecycleBase.stopInternal()`.

Methods inherited from class org.apache.catalina.realm.RealmBase
`addPropertyChangeListener, backgroundProcess, digest, Digest, findSecurityConstraints, getAllRolesMode, getContainer, getDigest, getDigest, getDigestCharset, getDigestEncoding, getDomainInternal, getInfo, getObjectNameKeyProperties, getPrincipal, getPrincipal, getRealmPath, getRealmSuffix, getServer, getValidate, getX509UsernameRetrieverClassName, hasMessageDigest, hasResourcePermission, hasRole, hasUserDataPermission, initInternal, isStripRealmForGss, main, removePropertyChangeListener, setAllRolesMode, setDigest, setDigestEncoding, setRealmPath, setStripRealmForGss, setValidate, setX509UsernameRetrieverClassName, toString`

Methods inherited from class org.apache.catalina.util.LifecycleMBeanBase
`destroyInternal, getDomain, getObjectName, postDeregister, postRegister, preDeregister, preRegister, register, setDomain, unregister`

Methods inherited from class org.apache.catalina.util.LifecycleBase
`addLifecycleListener, destroy, findLifecycleListeners, fireLifecycleEvent, getState, getStateName, init, removeLifecycleListener, setState, setState, start, stop`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

### realms

    protected List<Realm> realms

  The list of Realms contained by this Realm.

### name

    protected static final String name

  Descriptive information about this Realm implementation.

  See Also:
    Constant Field Values

Constructor Detail

### CombinedRealm

    public CombinedRealm()

Method Detail

### addRealm

    public void addRealm(Realm theRealm)

  Add a realm to the list of realms that will be used to authenticate users.

### getRealms

    public ObjectName[] getRealms()

  Return the set of Realms that this Realm is wrapping

### authenticate

    public Principal authenticate(String username,
                                  String clientDigest,
                                  String nonce,
                                  String nc,
                                  String cnonce,
                                  String qop,
                                  String realmName,
                                  String md5a2)

  Return the Principal associated with the specified username, which matches the digest calculated using the given parameters using the method described in RFC 2069; otherwise return `null`.

  Specified by:
    `authenticate` in interface `Realm`
  Overrides:
    `authenticate` in class `RealmBase`
  Parameters:
    `username` - Username of the Principal to look up
    `clientDigest` - Digest which has been submitted by the client
    `nonce` - Unique (or supposedly unique) token which has been used for this request
    `realmName` - Realm name
    `md5a2` - Second MD5 digest used to calculate the digest : MD5(Method + ":" + uri)

### authenticate

    public Principal authenticate(String username,
                                  String credentials)

  Return the Principal associated with the specified username and credentials, if there is one; otherwise return `null`.

  Specified by:
    `authenticate` in interface `Realm`
  Overrides:
    `authenticate` in class `RealmBase`
  Parameters:
    `username` - Username of the Principal to look up
    `credentials` - Password or other credentials to use in authenticating this username

### setContainer

    public void setContainer(Container container)

  Set the Container with which this Realm has been associated.

  Specified by:
    `setContainer` in interface `Realm`
  Overrides:
    `setContainer` in class `RealmBase`
  Parameters:
    `container` - The associated Container

### startInternal

    protected void startInternal()
                          throws LifecycleException

  Prepare for the beginning of active use of the public methods of this component and implement the requirements of `LifecycleBase.startInternal()`.

  Overrides:
    `startInternal` in class `RealmBase`
  Throws:
    `LifecycleException` - if this component detects a fatal error that prevents this component from being used

### stopInternal

    protected void stopInternal()
                         throws LifecycleException

  Gracefully terminate the active use of the public methods of this component and implement the requirements of `LifecycleBase.stopInternal()`.

  Overrides:
    `stopInternal` in class `RealmBase`
  Throws:
    `LifecycleException` - if this component detects a fatal error that needs to be reported

### authenticate

    public Principal authenticate(X509Certificate[] certs)

  Return the Principal associated with the specified chain of X509 client certificates. If there is none, return `null`.

  Specified by:
    `authenticate` in interface `Realm`
  Overrides:
    `authenticate` in class `RealmBase`
  Parameters:
    `certs` - Array of client certificates, with the first one in the array being the certificate of the client itself.

### authenticate

    public Principal authenticate(GSSContext gssContext,
                                  boolean storeCreds)

  Return the Principal associated with the specified `GSSContext`. If there is none, return `null`.

  Specified by:
    `authenticate` in interface `Realm`
  Overrides:
    `authenticate` in class `RealmBase`
  Parameters:
    `gssContext` - The gssContext processed by the `Authenticator`.
    `storeCreds` - Should the realm attempt to store the delegated credentials in the returned Principal?

### getName

    protected String getName()

  Description copied from class: `RealmBase`
  Return a short name for this Realm implementation, for use in log messages.

  Specified by:
    `getName` in class `RealmBase`

### getPassword

    protected String getPassword(String username)

  Description copied from class: `RealmBase`
  Return the password associated with the given principal's user name.

  Specified by:
    `getPassword` in class `RealmBase`

### getPrincipal

    protected Principal getPrincipal(String username)

  Description copied from class: `RealmBase`
  Return the Principal associated with the given user name.

  Specified by:
    `getPrincipal` in class `RealmBase`

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