Java Util.decodeString方法代码示例

import net.handle.hdllib.Util; //导入方法依赖的package包/类
/**
 * Return an enumeration of all the handles for a given naming authority.  This could be 
 * a very expensive call as it retrieves all of the handles at once.
 * 
 * @param namingAuthorityBytes
 * @return
 * @throws HandleException
 */
@SuppressWarnings("unchecked")
public Enumeration getHandlesForNA(byte[] namingAuthorityBytes) throws HandleException {
	log.debug("Get handles for na called ");
	String namingAuthority = Util.decodeString(namingAuthorityBytes);
	log.debug("Naming authority = " + namingAuthority);
	
	List<HandleInfo> handles = handleService.getAllHandlesForAuthority(namingAuthority);
	
	List<byte[]> handleValues = new LinkedList<byte[]>();
	
	for(HandleInfo hi : handles)
	{
		String handle = namingAuthority + "/" + hi.getLocalName();
		handleValues.add(Util.encodeString(handle));
	}
	return Collections.enumeration(handleValues);
}
 

import net.handle.hdllib.Util; //导入方法依赖的package包/类
public boolean haveNA(byte[] naBytes) throws HandleException {
	
	boolean haveNa = false;
	String namingAuthority = Util.decodeString(naBytes);
	log.debug("checking to see if we have naming authority : " + namingAuthority);
	String[] namingAuthorityParts = namingAuthority.split("/");
	
	if( namingAuthorityParts.length < 2 )
	{
		// false
	}
	else
	{
		String prefix = namingAuthorityParts[1];
		log.debug("Checing for prefix " + prefix);
		if( handleService.getNameAuthority(prefix) != null )
		{
		    haveNa = true;	
		}
		else
		{
			// false
		}
	}
	log.debug("returning haveNa = " + haveNa);
	return haveNa;

}
 

import net.handle.hdllib.Util; //导入方法依赖的package包/类
/**
 * Obtain a List of Handle objects belonging to the provided Identifier
 * (not used)  
 * 
 * @return List<Handle>
 *           A list of Handle Objects
 * @param identifier
 *          The Identifier object representing the agent whose handles
 *          are to be returned
 * @param startHandle
 *          The handle from which the list is to be started (exclusive)
 * @throws HandleException
 * @throws DAOException
 */
public List<String> getHandles(Identifier identifier,
                               String startHandle) throws DAOException
{
    Connection c = null; 
    
    PreparedStatement ps = null;
    
    ResultSet rs = null;
    
    ArrayList<String> handleList = new ArrayList<String>();
    
    try
    {
        c = datasource.getConnection();
        c.setAutoCommit(false);
        
        ps = c.prepareStatement(SELECT_HANDLE_FOR_USER_SQL);
        ps.setBytes(1, Util.encodeString(identifier.getHandle()));
        
        HandleConfig hc = HandleConfig.getHandleConfig();
        int index = hc.getPrefix().length();
        int suffix = 0;
        if (startHandle != null)
        {
            suffix = Integer.parseInt(startHandle.substring(index + 1));
        }
        ps.setBytes(1, Util.encodeString(identifier.getHandle()));
        ps.setInt(2, index + 2);
        ps.setInt(3, suffix);
        ps.setInt(4, index + 2);
        rs = ps.executeQuery();
        
        while (rs.next())
        {
            String s = Util.decodeString(rs.getBytes(1));
            handleList.add(s);
        }
    }
    catch (SQLException sqle)
    {
        log.error("SQLException occurred", sqle);
        throw new DAOException(sqle);
    }
    finally
    {
        JDBCSupport.closeObjects(rs, ps, c);
    }
    
    return handleList;
}
 

import net.handle.hdllib.Util; //导入方法依赖的package包/类
/**
 * Obtain a List of Handle objects matching a string  
 * 
 * @return List<Handle>
 *           A list of Handle Objects
 * @param data
 *          A string contained within hamdles handles are to be returned
 * @param type
 *          The handle value type (or null if all types)
 * @param pubReadOnly
 *          Only include publicly readable values (default is <code>false</code>)
 * @throws HandleException
 * @throws DAOException
 */
public List<String> getHandlesByData(String data,
                                     String type,
                                     boolean pubReadOnly) throws DAOException
{
    Connection c = null;
    
    PreparedStatement ps = null;
    
    ResultSet rs = null;
    
    ArrayList<String> handleList = new ArrayList<String>();
    
    try
    {
        c = datasource.getConnection();
        c.setAutoCommit(false);

        String statement = null;
        
        if (type != null)
        {
            statement = SELECT_HANDLES_BY_DATA_TYPE_SQL;
            if (pubReadOnly)
            {
                statement += " AND pub_read=TRUE";
            }
            ps = c.prepareStatement(statement);
            ps.setBytes(1, Util.encodeString(data));
            ps.setBytes(2, Util.encodeString(type));
        }
        else
        {
            statement = SELECT_HANDLES_BY_DATA_SQL;
            if (pubReadOnly)
            {
                statement += " AND pub_read=TRUE";
            }
            ps = c.prepareStatement(statement);
            ps.setBytes(1, Util.encodeString(data));
        }
        
        rs = ps.executeQuery();
        
        while (rs.next())
        {
            String s = Util.decodeString(rs.getBytes(1));
            handleList.add(s);
        }
    }
    catch (SQLException sqle)
    {
        log.error("SQLException occurred", sqle);
        throw new DAOException(sqle);
    }
    finally
    {
        JDBCSupport.closeObjects(rs, ps, c);
    }
    
    return handleList;
}