httpsessionimpl.java

来自「一个简单的visio程序。」· Java 代码 · 共 204 行

package servlet.http;

import java.util.Enumeration;
import java.util.Hashtable;
import javax.servlet.http.*;

// Referenced classes of package servlet.http:
//            SessionContextImpl

public class HttpSessionImpl
    implements HttpSession
{

    public HttpSessionImpl(SessionContextImpl sessioncontextimpl, Cookie cookie1)
    {
        sessionObjects = new Hashtable();
        creationTime = System.currentTimeMillis();
        lastAccessedTime = creationTime;
        sc = sessioncontextimpl;
        cookieSupportDetermined = false;
        cookie = cookie1;
        sessionID = sessioncontextimpl.setSession(this);
        cookie1.setValue(sessionID);
        isNew = true;
        isValid = true;
    }

    public void setNew(boolean flag)
    {
        isNew = flag;
    }

    public void setCookieSupported(boolean flag)
    {
        cookieSupportDetermined = true;
        usingCookies = flag;
    }

    public void setLastAccessedTime()
    {
        lastAccessedTime = System.currentTimeMillis();
    }

    public Cookie getCookie()
    {
        return cookie;
    }

    public boolean isCookieSupportDetermined()
    {
        if(!isValid)
            throw new IllegalStateException("Attempt to access an invalidated session");
        else
            return cookieSupportDetermined;
    }

    public boolean isUsingCookies()
    {
        if(!isValid)
            throw new IllegalStateException("Attempt to access an invalidated session");
        else
            return true;
    }

    public boolean isNew()
    {
        if(!isValid)
            throw new IllegalStateException("Attempt to access an invalidated session");
        else
            return isNew;
    }

    public boolean isUsingUrlRewriting()
    {
        if(!isValid)
            throw new IllegalStateException("Attempt to access an invalidated session");
        else
            return false;
    }

    public String getId()
    {
        if(!isValid)
            throw new IllegalStateException("Attempt to access an invalidated session");
        else
            return sessionID;
    }

    public HttpSessionContext getSessionContext()
    {
        if(!isValid)
            throw new IllegalStateException("Attempt to access an invalidated session");
        else
            return sc;
    }

    public long getCreationTime()
    {
        if(!isValid)
            throw new IllegalStateException("Attempt to access an invalidated session");
        else
            return creationTime;
    }

    public long getLastAccessedTime()
    {
        if(!isValid)
            throw new IllegalStateException("Attempt to access an invalidated session");
        else
            return lastAccessedTime;
    }

    public void invalidate()
    {
        if(!isValid)
        {
            throw new IllegalStateException("Attempt to access an invalidated session");
        }
        else
        {
            sc.removeSession(sessionID);
            isValid = false;
            return;
        }
    }

    public void putValue(String s, Object obj)
    {
        if(!isValid)
            throw new IllegalStateException("Attempt to access an invalidated session");
        removeValue(s);
        sessionObjects.put(s, obj);
        if(obj instanceof HttpSessionBindingListener)
            ((HttpSessionBindingListener)obj).valueBound(new HttpSessionBindingEvent(this, s));
    }

    public Object getValue(String s)
    {
        if(!isValid)
            throw new IllegalStateException("Attempt to access an invalidated session");
        else
            return sessionObjects.get(s);
    }

    public void removeValue(String s)
    {
        if(!isValid)
            throw new IllegalStateException("Attempt to access an invalidated session");
        Object obj = sessionObjects.get(s);
        if(obj != null)
            sessionObjects.remove(s);
        if(obj instanceof HttpSessionBindingListener)
            ((HttpSessionBindingListener)obj).valueUnbound(new HttpSessionBindingEvent(this, s));
    }

    public String[] getValueNames()
    {
        if(!isValid)
            throw new IllegalStateException("Attempt to access an invalidated session");
        String as[] = new String[sessionObjects.size()];
        int i = 0;
        for(Enumeration enumeration = sessionObjects.keys(); enumeration.hasMoreElements();)
            as[i++] = (String)enumeration.nextElement();

        return as;
    }
    public void setMaxInactiveInterval(int max){
    }
    public int getMaxInactiveInterval() {
      return 180;
    }
    public void setAttribute(String str, Object obj) {
    }
    public Object getAttribute(String str) {
      return null;
    }
    public void removeAttribute(java.lang.String name) {
    }
    public java.util.Enumeration getAttributeNames() {
      return null;
    }


    private String sessionID;
    private long creationTime;
    private long lastAccessedTime;
    private Hashtable sessionObjects;
    private SessionContextImpl sc;
    private boolean cookieSupportDetermined;
    private boolean usingCookies;
    private boolean usingURL;
    private Cookie cookie;
    private boolean isNew;
    private boolean isValid;


	public javax.servlet.ServletContext getServletContext()
	{
		return null;
	}

}