dircontexthelper.java

Tomcat 4.1与WebServer集成组件的源代码包.

/*
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 * The Apache Software License, Version 1.1
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 * Copyright (c) 1999 The Apache Software Foundation.  All rights 
 * reserved.
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 * modification, are permitted provided that the following conditions
 * are met:
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 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
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 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:  
 *       "This product includes software developed by the 
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
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package org.apache.naming.core;

import java.util.Hashtable;
import java.util.HashMap;
import javax.naming.Context;
import javax.naming.Name;
import javax.naming.NameParser;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.CompositeName;
import javax.naming.NameParser;
import javax.naming.directory.DirContext;
import javax.naming.directory.Attributes;
import javax.naming.directory.Attribute;
import javax.naming.directory.ModificationItem;
import javax.naming.directory.SearchControls;
import org.apache.tomcat.util.res.StringManager;

import java.io.*;

/**
 * Utility class providing additional operations on DirContexts.
 * Instead of extending DirContext we use a helper who will work
 * on any context, including 'foreign' ones ( like JNDI, etc ).
 *
 * Typical methods - conversions ( int, boolean), etc.
 *
 * This code should check if the context extend our BaseDirContext
 * and use specific features ( like notes - to cache the conversion
 * results for example ), but fallback for external contexts.
 *
 * @author Costin Manolache
 */
public class DirContextHelper  {
    static DirContextHelper instance=new DirContextHelper();
    
    public static DirContextHelper getInstance() {
        return instance;
    }
    
    
    /** Debugging string - the context, imediate childs and attributes
     */
    public String toString(DirContext ctx) {
        return "";
    }

    public int getIntAttribute( DirContext ctx, String name ) {
        return 0;
    }

    public long getLongAttribute( DirContext ctx, String name ) {
        return 0;
    }

    public String getStringAttribute( DirContext ctx, String name ) {
        return null;
    }

    public boolean getBooleanAttribute( DirContext ctx, String name ) {
        return false;
    }
}