You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@myfaces.apache.org by lu...@apache.org on 2012/11/16 07:03:51 UTC
svn commit: r1410208 [2/2] -
/myfaces/core/branches/2.2.x/impl/src/main/java/org/apache/myfaces/application/viewstate/
Modified: myfaces/core/branches/2.2.x/impl/src/main/java/org/apache/myfaces/application/viewstate/ServerSideStateCacheImpl.java
URL: http://svn.apache.org/viewvc/myfaces/core/branches/2.2.x/impl/src/main/java/org/apache/myfaces/application/viewstate/ServerSideStateCacheImpl.java?rev=1410208&r1=1410207&r2=1410208&view=diff
==============================================================================
--- myfaces/core/branches/2.2.x/impl/src/main/java/org/apache/myfaces/application/viewstate/ServerSideStateCacheImpl.java (original)
+++ myfaces/core/branches/2.2.x/impl/src/main/java/org/apache/myfaces/application/viewstate/ServerSideStateCacheImpl.java Fri Nov 16 06:03:50 2012
@@ -25,31 +25,19 @@ import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
-import java.io.Serializable;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.List;
import java.util.Map;
-import java.util.Random;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
-import javax.faces.application.ProjectStage;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.lifecycle.ClientWindow;
-import org.apache.commons.codec.DecoderException;
-import org.apache.commons.codec.binary.Hex;
-import org.apache.commons.collections.map.AbstractReferenceMap;
-import org.apache.commons.collections.map.LRUMap;
-import org.apache.commons.collections.map.ReferenceMap;
import org.apache.myfaces.application.StateCache;
import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFWebConfigParam;
import org.apache.myfaces.shared.renderkit.RendererUtils;
@@ -58,15 +46,15 @@ import org.apache.myfaces.shared.util.We
class ServerSideStateCacheImpl extends StateCache<Object, Object>
{
- private static final Logger log = Logger.getLogger(ServerSideStateCacheImpl.class.getName());
+ public static final Logger log = Logger.getLogger(ServerSideStateCacheImpl.class.getName());
- private static final String SERIALIZED_VIEW_SESSION_ATTR=
+ public static final String SERIALIZED_VIEW_SESSION_ATTR=
ServerSideStateCacheImpl.class.getName() + ".SERIALIZED_VIEW";
- private static final String RESTORED_SERIALIZED_VIEW_REQUEST_ATTR =
+ public static final String RESTORED_SERIALIZED_VIEW_REQUEST_ATTR =
ServerSideStateCacheImpl.class.getName() + ".RESTORED_SERIALIZED_VIEW";
- private static final String RESTORED_VIEW_KEY_REQUEST_ATTR =
+ public static final String RESTORED_VIEW_KEY_REQUEST_ATTR =
ServerSideStateCacheImpl.class.getName() + ".RESTORED_VIEW_KEY";
/**
@@ -77,7 +65,7 @@ class ServerSideStateCacheImpl extends S
*
*/
@JSFWebConfigParam(defaultValue="20",since="1.1", classType="java.lang.Integer", group="state", tags="performance")
- private static final String NUMBER_OF_VIEWS_IN_SESSION_PARAM = "org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION";
+ public static final String NUMBER_OF_VIEWS_IN_SESSION_PARAM = "org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION";
/**
* Indicates the amount of views (default is not active) that should be stored in session between sequential
@@ -93,13 +81,13 @@ class ServerSideStateCacheImpl extends S
* the other ones will throw ViewExpiredException.</p>
*/
@JSFWebConfigParam(since="2.0.6", classType="java.lang.Integer", group="state", tags="performance")
- private static final String NUMBER_OF_SEQUENTIAL_VIEWS_IN_SESSION_PARAM
+ public static final String NUMBER_OF_SEQUENTIAL_VIEWS_IN_SESSION_PARAM
= "org.apache.myfaces.NUMBER_OF_SEQUENTIAL_VIEWS_IN_SESSION";
/**
* Default value for <code>org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION</code> context parameter.
*/
- private static final int DEFAULT_NUMBER_OF_VIEWS_IN_SESSION = 20;
+ public static final int DEFAULT_NUMBER_OF_VIEWS_IN_SESSION = 20;
/**
* Indicate if the state should be serialized before save it on the session.
@@ -110,7 +98,7 @@ class ServerSideStateCacheImpl extends S
* </p>
*/
@JSFWebConfigParam(defaultValue="true",since="1.1", expectedValues="true,false", group="state", tags="performance")
- private static final String SERIALIZE_STATE_IN_SESSION_PARAM = "org.apache.myfaces.SERIALIZE_STATE_IN_SESSION";
+ public static final String SERIALIZE_STATE_IN_SESSION_PARAM = "org.apache.myfaces.SERIALIZE_STATE_IN_SESSION";
/**
* Indicates that the serialized state will be compressed before it is written to the session. By default true.
@@ -121,17 +109,17 @@ class ServerSideStateCacheImpl extends S
* If <code>false</code> the state will not be compressed.
*/
@JSFWebConfigParam(defaultValue="true",since="1.1", expectedValues="true,false", group="state", tags="performance")
- private static final String COMPRESS_SERVER_STATE_PARAM = "org.apache.myfaces.COMPRESS_STATE_IN_SESSION";
+ public static final String COMPRESS_SERVER_STATE_PARAM = "org.apache.myfaces.COMPRESS_STATE_IN_SESSION";
/**
* Default value for <code>org.apache.myfaces.COMPRESS_STATE_IN_SESSION</code> context parameter.
*/
- private static final boolean DEFAULT_COMPRESS_SERVER_STATE_PARAM = true;
+ public static final boolean DEFAULT_COMPRESS_SERVER_STATE_PARAM = true;
/**
* Default value for <code>org.apache.myfaces.SERIALIZE_STATE_IN_SESSION</code> context parameter.
*/
- private static final boolean DEFAULT_SERIALIZE_STATE_IN_SESSION = true;
+ public static final boolean DEFAULT_SERIALIZE_STATE_IN_SESSION = true;
/**
* Define the way of handle old view references(views removed from session), making possible to
@@ -158,22 +146,22 @@ class ServerSideStateCacheImpl extends S
*/
@JSFWebConfigParam(defaultValue="off", expectedValues="off, no, hard-soft, soft, soft-weak, weak",
since="1.2.5", group="state", tags="performance")
- private static final String CACHE_OLD_VIEWS_IN_SESSION_MODE = "org.apache.myfaces.CACHE_OLD_VIEWS_IN_SESSION_MODE";
+ public static final String CACHE_OLD_VIEWS_IN_SESSION_MODE = "org.apache.myfaces.CACHE_OLD_VIEWS_IN_SESSION_MODE";
/**
* This option uses an hard-soft ReferenceMap, but it could cause a
* memory leak, because the keys are not removed by any method
* (MYFACES-1660). So use with caution.
*/
- private static final String CACHE_OLD_VIEWS_IN_SESSION_MODE_HARD_SOFT = "hard-soft";
+ public static final String CACHE_OLD_VIEWS_IN_SESSION_MODE_HARD_SOFT = "hard-soft";
- private static final String CACHE_OLD_VIEWS_IN_SESSION_MODE_SOFT = "soft";
+ public static final String CACHE_OLD_VIEWS_IN_SESSION_MODE_SOFT = "soft";
- private static final String CACHE_OLD_VIEWS_IN_SESSION_MODE_SOFT_WEAK = "soft-weak";
+ public static final String CACHE_OLD_VIEWS_IN_SESSION_MODE_SOFT_WEAK = "soft-weak";
- private static final String CACHE_OLD_VIEWS_IN_SESSION_MODE_WEAK = "weak";
+ public static final String CACHE_OLD_VIEWS_IN_SESSION_MODE_WEAK = "weak";
- private static final String CACHE_OLD_VIEWS_IN_SESSION_MODE_OFF = "off";
+ public static final String CACHE_OLD_VIEWS_IN_SESSION_MODE_OFF = "off";
/**
* Allow use flash scope to keep track of the views used in session and the previous ones,
@@ -184,21 +172,21 @@ class ServerSideStateCacheImpl extends S
* The default value is false.</p>
*/
@JSFWebConfigParam(since="2.0.6", defaultValue="false", expectedValues="true, false", group="state")
- private static final String USE_FLASH_SCOPE_PURGE_VIEWS_IN_SESSION
+ public static final String USE_FLASH_SCOPE_PURGE_VIEWS_IN_SESSION
= "org.apache.myfaces.USE_FLASH_SCOPE_PURGE_VIEWS_IN_SESSION";
- private static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_NONE = "none";
- private static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM = "secureRandom";
- private static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_RANDOM = "random";
+ public static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_NONE = "none";
+ public static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM = "secureRandom";
+ public static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_RANDOM = "random";
/**
* Adds a random key to the generated view state session token.
*/
@JSFWebConfigParam(since="2.1.9, 2.0.15", expectedValues="secureRandom, random, none",
defaultValue="none", group="state")
- private static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_PARAM
+ public static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_PARAM
= "org.apache.myfaces.RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN";
- private static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_PARAM_DEFAULT =
+ public static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_PARAM_DEFAULT =
RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_NONE;
/**
@@ -206,23 +194,23 @@ class ServerSideStateCacheImpl extends S
* By default is 8.
*/
@JSFWebConfigParam(since="2.1.9, 2.0.15", defaultValue="8", group="state")
- private static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_LENGTH_PARAM
+ public static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_LENGTH_PARAM
= "org.apache.myfaces.RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_LENGTH";
- private static final int RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_LENGTH_PARAM_DEFAULT = 8;
+ public static final int RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_LENGTH_PARAM_DEFAULT = 8;
/**
* Sets the random class to initialize the secure random id generator.
* By default it uses java.security.SecureRandom
*/
@JSFWebConfigParam(since="2.1.9, 2.0.15", group="state")
- private static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM_CLASS_PARAM
+ public static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM_CLASS_PARAM
= "org.apache.myfaces.RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM_CLASS";
/**
* Sets the random provider to initialize the secure random id generator.
*/
@JSFWebConfigParam(since="2.1.9, 2.0.15", group="state")
- private static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM_PROVIDER_PARAM
+ public static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM_PROVIDER_PARAM
= "org.apache.myfaces.RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM_PROVIDER";
/**
@@ -230,14 +218,14 @@ class ServerSideStateCacheImpl extends S
* By default is SHA1PRNG
*/
@JSFWebConfigParam(since="2.1.9, 2.0.15", defaultValue="SHA1PRNG", group="state")
- private static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM_ALGORITM_PARAM
+ public static final String RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM_ALGORITM_PARAM
= "org.apache.myfaces.RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM_ALGORITM";
- private static final int UNCOMPRESSED_FLAG = 0;
- private static final int COMPRESSED_FLAG = 1;
+ public static final int UNCOMPRESSED_FLAG = 0;
+ public static final int COMPRESSED_FLAG = 1;
- private static final Object[] EMPTY_STATES = new Object[]{null, null};
+ public static final Object[] EMPTY_STATES = new Object[]{null, null};
//private static final int JSF_SEQUENCE_INDEX = 0;
@@ -607,469 +595,6 @@ class ServerSideStateCacheImpl extends S
}
}
- protected static class SerializedViewCollection implements Serializable
- {
- private static final long serialVersionUID = -3734849062185115847L;
-
- private final List<SerializedViewKey> _keys
- = new ArrayList<SerializedViewKey>(DEFAULT_NUMBER_OF_VIEWS_IN_SESSION);
- private final Map<SerializedViewKey, Object> _serializedViews = new HashMap<SerializedViewKey, Object>();
-
- private final Map<SerializedViewKey, SerializedViewKey> _precedence =
- new HashMap<SerializedViewKey, SerializedViewKey>();
-
- private Map<String, SerializedViewKey> _lastWindowKeys = null;
-
- // old views will be hold as soft references which will be removed by
- // the garbage collector if free memory is low
- private transient Map<Object, Object> _oldSerializedViews = null;
-
- public synchronized void add(FacesContext context, Object state, SerializedViewKey key,
- SerializedViewKey previousRestoredKey)
- {
- if (state == null)
- {
- state = EMPTY_STATES;
- }
- else if (state instanceof Object[] &&
- ((Object[])state).length == 2 &&
- ((Object[])state)[0] == null &&
- ((Object[])state)[1] == null)
- {
- // The generated state can be considered zero, set it as null
- // into the map.
- state = null;
- }
-
- Integer maxCount = getNumberOfSequentialViewsInSession(context);
- if (maxCount != null)
- {
- if (previousRestoredKey != null)
- {
- if (!_serializedViews.isEmpty())
- {
- _precedence.put((SerializedViewKey) key, previousRestoredKey);
- }
- else
- {
- // Note when the session is invalidated, _serializedViews map is empty,
- // but we could have a not null previousRestoredKey (the last one before
- // invalidate the session), so we need to check that condition before
- // set the precence. In that way, we ensure the precedence map will always
- // have valid keys.
- previousRestoredKey = null;
- }
- }
- }
- _serializedViews.put(key, state);
-
- while (_keys.remove(key))
- {
- // do nothing
- }
- _keys.add(key);
-
- if (previousRestoredKey != null && maxCount != null && maxCount > 0)
- {
- int count = 0;
- SerializedViewKey previousKey = (SerializedViewKey) key;
- do
- {
- previousKey = _precedence.get(previousKey);
- count++;
- } while (previousKey != null && count < maxCount);
-
- if (previousKey != null)
- {
- SerializedViewKey keyToRemove = (SerializedViewKey) previousKey;
- // In theory it should be only one key but just to be sure
- // do it in a loop, but in this case if cache old views is on,
- // put on that map.
- do
- {
- while (_keys.remove(keyToRemove))
- {
- // do nothing
- }
-
- if (_serializedViews.containsKey(keyToRemove) &&
- !CACHE_OLD_VIEWS_IN_SESSION_MODE_OFF.equals(getCacheOldViewsInSessionMode(context)))
- {
- getOldSerializedViewsMap().put(keyToRemove, _serializedViews.remove(keyToRemove));
- }
- else
- {
- _serializedViews.remove(keyToRemove);
- }
-
- keyToRemove = _precedence.remove(keyToRemove);
- } while(keyToRemove != null);
- }
- }
-
- int views = getNumberOfViewsInSession(context);
- while (_keys.size() > views)
- {
- key = _keys.remove(0);
-
- if (maxCount != null && maxCount > 0)
- {
- SerializedViewKey keyToRemove = (SerializedViewKey) key;
- // Note in this case the key to delete is the oldest one,
- // so it could be at least one precedence, but to be safe
- // do it with a loop.
- do
- {
- keyToRemove = _precedence.remove(keyToRemove);
- } while (keyToRemove != null);
- }
-
- if (_serializedViews.containsKey(key) &&
- !CACHE_OLD_VIEWS_IN_SESSION_MODE_OFF.equals(getCacheOldViewsInSessionMode(context)))
- {
-
- getOldSerializedViewsMap().put(key, _serializedViews.remove(key));
- }
- else
- {
- _serializedViews.remove(key);
- }
- }
- }
-
- protected Integer getNumberOfSequentialViewsInSession(FacesContext context)
- {
- return WebConfigParamUtils.getIntegerInitParameter(context.getExternalContext(),
- NUMBER_OF_SEQUENTIAL_VIEWS_IN_SESSION_PARAM);
- }
-
- /**
- * Reads the amount (default = 20) of views to be stored in session.
- * @see #NUMBER_OF_VIEWS_IN_SESSION_PARAM
- * @param context FacesContext for the current request, we are processing
- * @return Number vf views stored in the session
- */
- protected int getNumberOfViewsInSession(FacesContext context)
- {
- String value = context.getExternalContext().getInitParameter(
- NUMBER_OF_VIEWS_IN_SESSION_PARAM);
- int views = DEFAULT_NUMBER_OF_VIEWS_IN_SESSION;
- if (value != null)
- {
- try
- {
- views = Integer.parseInt(value);
- if (views <= 0)
- {
- log.severe("Configured value for " + NUMBER_OF_VIEWS_IN_SESSION_PARAM
- + " is not valid, must be an value > 0, using default value ("
- + DEFAULT_NUMBER_OF_VIEWS_IN_SESSION);
- views = DEFAULT_NUMBER_OF_VIEWS_IN_SESSION;
- }
- }
- catch (Throwable e)
- {
- log.log(Level.SEVERE, "Error determining the value for " + NUMBER_OF_VIEWS_IN_SESSION_PARAM
- + ", expected an integer value > 0, using default value ("
- + DEFAULT_NUMBER_OF_VIEWS_IN_SESSION + "): " + e.getMessage(), e);
- }
- }
- return views;
- }
-
- public synchronized void putLastWindowKey(FacesContext context, String id, SerializedViewKey key)
- {
- if (_lastWindowKeys == null)
- {
- Integer i = getNumberOfSequentialViewsInSession(context);
- int j = getNumberOfViewsInSession(context);
- if (i != null && i.intValue() > 0)
- {
- _lastWindowKeys = new LRUMap((j / i.intValue()) + 1);
- }
- else
- {
- _lastWindowKeys = new LRUMap(j + 1);
- }
- }
- _lastWindowKeys.put(id, key);
- }
-
- public SerializedViewKey getLastWindowKey(FacesContext context, String id)
- {
- if (_lastWindowKeys != null)
- {
- return _lastWindowKeys.get(id);
- }
- return null;
- }
-
- /**
- * @return old serialized views map
- */
- @SuppressWarnings("unchecked")
- protected Map<Object, Object> getOldSerializedViewsMap()
- {
- FacesContext context = FacesContext.getCurrentInstance();
- if (_oldSerializedViews == null && context != null)
- {
- String cacheMode = getCacheOldViewsInSessionMode(context);
- if (CACHE_OLD_VIEWS_IN_SESSION_MODE_WEAK.equals(cacheMode))
- {
- _oldSerializedViews = new ReferenceMap(AbstractReferenceMap.WEAK, AbstractReferenceMap.WEAK, true);
- }
- else if (CACHE_OLD_VIEWS_IN_SESSION_MODE_SOFT_WEAK.equals(cacheMode))
- {
- _oldSerializedViews = new ReferenceMap(AbstractReferenceMap.SOFT, AbstractReferenceMap.WEAK, true);
- }
- else if (CACHE_OLD_VIEWS_IN_SESSION_MODE_SOFT.equals(cacheMode))
- {
- _oldSerializedViews = new ReferenceMap(AbstractReferenceMap.SOFT, AbstractReferenceMap.SOFT, true);
- }
- else if (CACHE_OLD_VIEWS_IN_SESSION_MODE_HARD_SOFT.equals(cacheMode))
- {
- _oldSerializedViews = new ReferenceMap(AbstractReferenceMap.HARD, AbstractReferenceMap.SOFT);
- }
- }
-
- return _oldSerializedViews;
- }
-
- /**
- * Reads the value of the <code>org.apache.myfaces.CACHE_OLD_VIEWS_IN_SESSION_MODE</code> context parameter.
- *
- * @since 1.2.5
- * @param context
- * @return constant indicating caching mode
- * @see #CACHE_OLD_VIEWS_IN_SESSION_MODE
- */
- protected String getCacheOldViewsInSessionMode(FacesContext context)
- {
- String value = context.getExternalContext().getInitParameter(
- CACHE_OLD_VIEWS_IN_SESSION_MODE);
- if (value == null)
- {
- return CACHE_OLD_VIEWS_IN_SESSION_MODE_OFF;
- }
- else if (value.equalsIgnoreCase(CACHE_OLD_VIEWS_IN_SESSION_MODE_SOFT))
- {
- return CACHE_OLD_VIEWS_IN_SESSION_MODE_SOFT;
- }
- else if (value.equalsIgnoreCase(CACHE_OLD_VIEWS_IN_SESSION_MODE_SOFT_WEAK))
- {
- return CACHE_OLD_VIEWS_IN_SESSION_MODE_SOFT_WEAK;
- }
- else if (value.equalsIgnoreCase(CACHE_OLD_VIEWS_IN_SESSION_MODE_WEAK))
- {
- return CACHE_OLD_VIEWS_IN_SESSION_MODE_WEAK;
- }
- else if (value.equalsIgnoreCase(CACHE_OLD_VIEWS_IN_SESSION_MODE_HARD_SOFT))
- {
- return CACHE_OLD_VIEWS_IN_SESSION_MODE_HARD_SOFT;
- }
- else
- {
- return CACHE_OLD_VIEWS_IN_SESSION_MODE_OFF;
- }
- }
-
- public Object get(SerializedViewKey key)
- {
- Object value = _serializedViews.get(key);
- if (value == null)
- {
- if (_serializedViews.containsKey(key))
- {
- return EMPTY_STATES;
- }
- Map<Object,Object> oldSerializedViewMap = getOldSerializedViewsMap();
- if (oldSerializedViewMap != null)
- {
- value = oldSerializedViewMap.get(key);
- if (value == null && oldSerializedViewMap.containsKey(key) )
- {
- return EMPTY_STATES;
- }
- }
- }
- else if (value instanceof Object[] &&
- ((Object[])value).length == 2 &&
- ((Object[])value)[0] == null &&
- ((Object[])value)[1] == null)
- {
- // Remember inside the state map null is stored as an empty array.
- return null;
- }
- return value;
- }
- }
-
- /**
- * Base implementation where all keys used to identify the state of a view should
- * extend.
- */
- protected abstract static class SerializedViewKey implements Serializable
- {
- }
-
- /**
- * Implementation of SerializedViewKey, where the hashCode of the viewId is used
- * and the sequenceId is a numeric value.
- */
- private static class IntIntSerializedViewKey extends SerializedViewKey
- implements Serializable
- {
- private static final long serialVersionUID = -1170697124386063642L;
-
- private final int _viewId;
- private final int _sequenceId;
-
- public IntIntSerializedViewKey(int viewId, int sequence)
- {
- _sequenceId = sequence;
- _viewId = viewId;
- }
-
- @Override
- public boolean equals(Object obj)
- {
- if (obj == null)
- {
- return false;
- }
- if (getClass() != obj.getClass())
- {
- return false;
- }
- final IntIntSerializedViewKey other = (IntIntSerializedViewKey) obj;
- if (this._viewId != other._viewId)
- {
- return false;
- }
- if (this._sequenceId != other._sequenceId)
- {
- return false;
- }
- return true;
- }
-
- @Override
- public int hashCode()
- {
- int hash = 7;
- hash = 83 * hash + this._viewId;
- hash = 83 * hash + this._sequenceId;
- return hash;
- }
- }
-
- /**
- * Implementation of SerializedViewKey, where the hashCode of the viewId is used
- * and the sequenceId is a string value.
- */
- private static class IntByteArraySerializedViewKey extends SerializedViewKey
- implements Serializable
- {
- private final int _viewId;
- private final byte[] _sequenceId;
-
- public IntByteArraySerializedViewKey(int viewId, byte[] sequence)
- {
- _sequenceId = sequence;
- _viewId = viewId;
- }
-
- @Override
- public boolean equals(Object obj)
- {
- if (obj == null)
- {
- return false;
- }
- if (getClass() != obj.getClass())
- {
- return false;
- }
- final IntByteArraySerializedViewKey other = (IntByteArraySerializedViewKey) obj;
- if (this._viewId != other._viewId)
- {
- return false;
- }
- if (!Arrays.equals(this._sequenceId, other._sequenceId))
- {
- return false;
- }
- return true;
- }
-
- @Override
- public int hashCode()
- {
- int hash = 5;
- hash = 37 * hash + this._viewId;
- hash = 37 * hash + Arrays.hashCode(this._sequenceId);
- return hash;
- }
- }
-
-
- /**
- * Implementation of SerializedViewKey, where the viewId and the sequenceId can be
- * anything.
- */
- private static class ReferenceSerializedViewKey<I,K> extends SerializedViewKey
- implements Serializable
- {
- private static final long serialVersionUID = -1170697124386063642L;
-
- private final I _viewId;
- private final K _sequenceId;
-
- public ReferenceSerializedViewKey()
- {
- _sequenceId = null;
- _viewId = null;
- }
- public ReferenceSerializedViewKey(I viewId, K sequence)
- {
- _sequenceId = sequence;
- _viewId = viewId;
- }
-
- @Override
- public boolean equals(Object obj)
- {
- if (obj == null)
- {
- return false;
- }
- if (getClass() != obj.getClass())
- {
- return false;
- }
- final ReferenceSerializedViewKey<I, K> other = (ReferenceSerializedViewKey<I, K>) obj;
- if (this._viewId != other._viewId && (this._viewId == null || !this._viewId.equals(other._viewId)))
- {
- return false;
- }
- if (this._sequenceId != other._sequenceId &&
- (this._sequenceId == null || !this._sequenceId.equals(other._sequenceId)))
- {
- return false;
- }
- return true;
- }
-
- @Override
- public int hashCode()
- {
- int hash = 7;
- hash = 83 * hash + (this._viewId != null ? this._viewId.hashCode() : 0);
- hash = 83 * hash + (this._sequenceId != null ? this._sequenceId.hashCode() : 0);
- return hash;
- }
- }
-
//------------------------------------- METHOD FROM StateCache ------------------------------------------------
@Override
@@ -1150,349 +675,4 @@ class ServerSideStateCacheImpl extends S
{
return sessionViewStorageFactory;
}
-
-
- protected abstract static class KeyFactory<K, V>
- {
-
- /**
- * Generates a unique key per session
- *
- * @param facesContext
- * @return
- */
- public abstract K generateKey(FacesContext facesContext);
-
- /**
- * Encode a Key into a value that will be used as view state session token
- *
- * @param key
- * @return
- */
- public abstract V encode(K key);
-
- /**
- * Decode a view state session token into a key
- *
- * @param value
- * @return
- */
- public abstract K decode(V value);
-
- }
-
- private static class CounterKeyFactory extends KeyFactory<Integer, String>
- {
- /**
- * Take the counter from session scope and increment
- *
- * @param facesContext
- * @return
- */
- @Override
- public Integer generateKey(FacesContext facesContext)
- {
- ExternalContext externalContext = facesContext.getExternalContext();
- Object sessionObj = externalContext.getSession(true);
- Integer sequence = null;
- synchronized(sessionObj) // synchronized to increase sequence if multiple requests
- // are handled at the same time for the session
- {
- Map<String, Object> map = externalContext.getSessionMap();
- sequence = (Integer) map.get(RendererUtils.SEQUENCE_PARAM);
- if(sequence == null || sequence.intValue() == Integer.MAX_VALUE)
- {
- sequence = Integer.valueOf(1);
- }
- else
- {
- sequence = Integer.valueOf(sequence.intValue() + 1);
- }
- map.put(RendererUtils.SEQUENCE_PARAM, sequence);
- }
- return sequence;
- }
-
- public String encode(Integer sequence)
- {
- return Integer.toString(sequence, Character.MAX_RADIX);
- }
-
- public Integer decode(String serverStateId)
- {
- return Integer.valueOf((String) serverStateId, Character.MAX_RADIX);
- }
- }
-
- /**
- * This factory generate a key composed by a counter and a random number. The
- * counter ensures uniqueness, and the random number prevents guess the next
- * session token.
- */
- private static class SecureRandomKeyFactory extends KeyFactory<byte[], String>
- {
- private final SessionIdGenerator sessionIdGenerator;
- private final int length;
-
- public SecureRandomKeyFactory(FacesContext facesContext)
- {
- length = WebConfigParamUtils.getIntegerInitParameter(facesContext.getExternalContext(),
- RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_LENGTH_PARAM,
- RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_LENGTH_PARAM_DEFAULT);
- sessionIdGenerator = new SessionIdGenerator();
- sessionIdGenerator.setSessionIdLength(length);
- String secureRandomClass = WebConfigParamUtils.getStringInitParameter(
- facesContext.getExternalContext(),
- RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM_CLASS_PARAM);
- if (secureRandomClass != null)
- {
- sessionIdGenerator.setSecureRandomClass(secureRandomClass);
- }
- String secureRandomProvider = WebConfigParamUtils.getStringInitParameter(
- facesContext.getExternalContext(),
- RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM_PROVIDER_PARAM);
- if (secureRandomProvider != null)
- {
- sessionIdGenerator.setSecureRandomProvider(secureRandomProvider);
- }
- String secureRandomAlgorithm = WebConfigParamUtils.getStringInitParameter(
- facesContext.getExternalContext(),
- RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_SECURE_RANDOM_ALGORITM_PARAM);
- if (secureRandomAlgorithm != null)
- {
- sessionIdGenerator.setSecureRandomAlgorithm(secureRandomAlgorithm);
- }
- }
-
- public Integer generateCounterKey(FacesContext facesContext)
- {
- ExternalContext externalContext = facesContext.getExternalContext();
- Object sessionObj = externalContext.getSession(true);
- Integer sequence = null;
- synchronized(sessionObj) // synchronized to increase sequence if multiple requests
- // are handled at the same time for the session
- {
- Map<String, Object> map = externalContext.getSessionMap();
- sequence = (Integer) map.get(RendererUtils.SEQUENCE_PARAM);
- if(sequence == null || sequence.intValue() == Integer.MAX_VALUE)
- {
- sequence = Integer.valueOf(1);
- }
- else
- {
- sequence = Integer.valueOf(sequence.intValue() + 1);
- }
- map.put(RendererUtils.SEQUENCE_PARAM, sequence);
- }
- return sequence;
- }
-
- @Override
- public byte[] generateKey(FacesContext facesContext)
- {
- byte[] array = new byte[length];
- byte[] key = new byte[length+4];
-
- sessionIdGenerator.getRandomBytes(array);
- for (int i = 0; i < array.length; i++)
- {
- key[i] = array[i];
- }
- int value = generateCounterKey(facesContext);
- key[array.length] = (byte) (value >>> 24);
- key[array.length+1] = (byte) (value >>> 16);
- key[array.length+2] = (byte) (value >>> 8);
- key[array.length+3] = (byte) (value);
-
- return key;
- }
-
- @Override
- public String encode(byte[] key)
- {
- return new String(Hex.encodeHex(key));
- }
-
- @Override
- public byte[] decode(String value)
- {
- try
- {
- return Hex.decodeHex(value.toCharArray());
- }
- catch (DecoderException ex)
- {
- // Cannot decode, ignore silently, later it will be handled as
- // ViewExpiredException
- }
- return null;
- }
- }
-
- private static class RandomKeyFactory extends KeyFactory<byte[], String>
- {
- private final Random random;
- private final int length;
-
- public RandomKeyFactory(FacesContext facesContext)
- {
- length = WebConfigParamUtils.getIntegerInitParameter(facesContext.getExternalContext(),
- RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_LENGTH_PARAM,
- RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN_LENGTH_PARAM_DEFAULT);
- random = new Random(((int)System.nanoTime())+this.hashCode());
- }
-
- public Integer generateCounterKey(FacesContext facesContext)
- {
- ExternalContext externalContext = facesContext.getExternalContext();
- Object sessionObj = externalContext.getSession(true);
- Integer sequence = null;
- synchronized(sessionObj) // synchronized to increase sequence if multiple requests
- // are handled at the same time for the session
- {
- Map<String, Object> map = externalContext.getSessionMap();
- sequence = (Integer) map.get(RendererUtils.SEQUENCE_PARAM);
- if(sequence == null || sequence.intValue() == Integer.MAX_VALUE)
- {
- sequence = Integer.valueOf(1);
- }
- else
- {
- sequence = Integer.valueOf(sequence.intValue() + 1);
- }
- map.put(RendererUtils.SEQUENCE_PARAM, sequence);
- }
- return sequence;
- }
-
- @Override
- public byte[] generateKey(FacesContext facesContext)
- {
- byte[] array = new byte[length];
- byte[] key = new byte[length+4];
-
- //sessionIdGenerator.getRandomBytes(array);
- random.nextBytes(array);
- for (int i = 0; i < array.length; i++)
- {
- key[i] = array[i];
- }
- int value = generateCounterKey(facesContext);
- key[array.length] = (byte) (value >>> 24);
- key[array.length+1] = (byte) (value >>> 16);
- key[array.length+2] = (byte) (value >>> 8);
- key[array.length+3] = (byte) (value);
-
- return key;
- }
-
- @Override
- public String encode(byte[] key)
- {
- return new String(Hex.encodeHex(key));
- }
-
- @Override
- public byte[] decode(String value)
- {
- try
- {
- return Hex.decodeHex(value.toCharArray());
- }
- catch (DecoderException ex)
- {
- // Cannot decode, ignore silently, later it will be handled as
- // ViewExpiredException
- }
- return null;
- }
- }
-
- /**
- *
- * @param <T>
- * @param <K>
- * @param <V>
- */
- protected abstract static class SessionViewStorageFactory <T extends KeyFactory<K,V>, K, V >
- {
- private KeyFactory<K, V> keyFactory;
-
- public SessionViewStorageFactory(KeyFactory<K, V> keyFactory)
- {
- this.keyFactory = keyFactory;
- }
-
- public KeyFactory<K, V> getKeyFactory()
- {
- return keyFactory;
- }
-
- public abstract SerializedViewCollection createSerializedViewCollection(
- FacesContext context);
-
- public abstract SerializedViewKey createSerializedViewKey(
- FacesContext facesContext, String viewId, K key);
-
- }
-
- private static class CounterSessionViewStorageFactory
- extends SessionViewStorageFactory <KeyFactory <Integer,String>, Integer, String>
- {
- public CounterSessionViewStorageFactory(KeyFactory<Integer, String> keyFactory)
- {
- super(keyFactory);
- }
-
- @Override
- public SerializedViewCollection createSerializedViewCollection(
- FacesContext context)
- {
- return new SerializedViewCollection();
- }
-
- @Override
- public SerializedViewKey createSerializedViewKey(
- FacesContext context, String viewId, Integer key)
- {
- if (context.isProjectStage(ProjectStage.Production))
- {
- return new IntIntSerializedViewKey(viewId == null ? 0 : viewId.hashCode(), key);
- }
- else
- {
- return new ReferenceSerializedViewKey(viewId, key);
- }
- }
- }
-
- private static class RandomSessionViewStorageFactory
- extends SessionViewStorageFactory <KeyFactory <byte[],String>, byte[], String>
- {
- public RandomSessionViewStorageFactory(KeyFactory<byte[], String> keyFactory)
- {
- super(keyFactory);
- }
-
- @Override
- public SerializedViewCollection createSerializedViewCollection(
- FacesContext context)
- {
- return new SerializedViewCollection();
- }
-
- @Override
- public SerializedViewKey createSerializedViewKey(
- FacesContext context, String viewId, byte[] key)
- {
- if (context.isProjectStage(ProjectStage.Production))
- {
- return new IntByteArraySerializedViewKey(viewId == null ? 0 : viewId.hashCode(), key);
- }
- else
- {
- return new ReferenceSerializedViewKey(viewId, key);
- }
- }
- }
}
Added: myfaces/core/branches/2.2.x/impl/src/main/java/org/apache/myfaces/application/viewstate/SessionViewStorageFactory.java
URL: http://svn.apache.org/viewvc/myfaces/core/branches/2.2.x/impl/src/main/java/org/apache/myfaces/application/viewstate/SessionViewStorageFactory.java?rev=1410208&view=auto
==============================================================================
--- myfaces/core/branches/2.2.x/impl/src/main/java/org/apache/myfaces/application/viewstate/SessionViewStorageFactory.java (added)
+++ myfaces/core/branches/2.2.x/impl/src/main/java/org/apache/myfaces/application/viewstate/SessionViewStorageFactory.java Fri Nov 16 06:03:50 2012
@@ -0,0 +1,48 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.myfaces.application.viewstate;
+
+import javax.faces.context.FacesContext;
+
+/**
+ *
+ * @param <T>
+ * @param <K>
+ * @param <V>
+ */
+abstract class SessionViewStorageFactory<T extends KeyFactory<K, V>, K, V>
+{
+ private KeyFactory<K, V> keyFactory;
+
+ public SessionViewStorageFactory(KeyFactory<K, V> keyFactory)
+ {
+ this.keyFactory = keyFactory;
+ }
+
+ public KeyFactory<K, V> getKeyFactory()
+ {
+ return keyFactory;
+ }
+
+ public abstract SerializedViewCollection createSerializedViewCollection(FacesContext context);
+
+ public abstract SerializedViewKey createSerializedViewKey(
+ FacesContext facesContext, String viewId, K key);
+
+}
Propchange: myfaces/core/branches/2.2.x/impl/src/main/java/org/apache/myfaces/application/viewstate/SessionViewStorageFactory.java
------------------------------------------------------------------------------
svn:eol-style = native