com.liferay.util.servlet.NullSession.java Source code

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Here is the source code for com.liferay.util.servlet.NullSession.java

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/**
 * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
 *
 * 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; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * 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.
 */

package com.liferay.util.servlet;

import com.liferay.portal.kernel.util.ListUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.util.PwdGenerator;

import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpSession;

/**
 * @author Brian Wing Shun Chan
 */
public class NullSession implements HttpSession {

    public NullSession() {
        _attributes = new HashMap<String, Object>();
        _creationTime = System.currentTimeMillis();
        _id = NullSession.class.getName() + StringPool.POUND + PwdGenerator.getPinNumber();
        _lastAccessedTime = _creationTime;
        _maxInactiveInterval = 0;
        _servletContext = null;
        _new = true;
    }

    public Object getAttribute(String name) {
        return _attributes.get(name);
    }

    public Enumeration<String> getAttributeNames() {
        return Collections.enumeration(_attributes.keySet());
    }

    public long getCreationTime() {
        return _creationTime;
    }

    public String getId() {
        return _id;
    }

    public long getLastAccessedTime() {
        return _lastAccessedTime;
    }

    public int getMaxInactiveInterval() {
        return _maxInactiveInterval;
    }

    public ServletContext getServletContext() {
        return _servletContext;
    }

    /**
     * @deprecated
     */
    public javax.servlet.http.HttpSessionContext getSessionContext() {
        return null;
    }

    public Object getValue(String name) {
        return getAttribute(name);
    }

    public String[] getValueNames() {
        List<String> names = ListUtil.fromEnumeration(getAttributeNames());

        return names.toArray(new String[0]);
    }

    public void invalidate() {
        _attributes.clear();
    }

    public boolean isNew() {
        return _new;
    }

    public void putValue(String name, Object value) {
        setAttribute(name, value);
    }

    public void removeAttribute(String name) {
        _attributes.remove(name);
    }

    public void removeValue(String name) {
        removeAttribute(name);
    }

    public void setAttribute(String name, Object value) {
        _attributes.put(name, value);
    }

    public void setMaxInactiveInterval(int maxInactiveInterval) {
        _maxInactiveInterval = maxInactiveInterval;
    }

    private Map<String, Object> _attributes;
    private long _creationTime;
    private String _id;
    private long _lastAccessedTime;
    private int _maxInactiveInterval;
    private ServletContext _servletContext;
    private boolean _new;

}