001/* 002 * CDDL HEADER START 003 * 004 * The contents of this file are subject to the terms of the 005 * Common Development and Distribution License, Version 1.0 only 006 * (the "License"). You may not use this file except in compliance 007 * with the License. 008 * 009 * You can obtain a copy of the license at legal-notices/CDDLv1_0.txt 010 * or http://forgerock.org/license/CDDLv1.0.html. 011 * See the License for the specific language governing permissions 012 * and limitations under the License. 013 * 014 * When distributing Covered Code, include this CDDL HEADER in each 015 * file and include the License file at legal-notices/CDDLv1_0.txt. 016 * If applicable, add the following below this CDDL HEADER, with the 017 * fields enclosed by brackets "[]" replaced with your own identifying 018 * information: 019 * Portions Copyright [yyyy] [name of copyright owner] 020 * 021 * CDDL HEADER END 022 * 023 * 024 * Copyright 2012-2015 ForgeRock AS. 025 */ 026package org.opends.dsml.protocol; 027 028import java.io.IOException; 029import java.io.InputStream; 030import java.net.URI; 031 032import org.forgerock.opendj.ldap.ByteString; 033import org.forgerock.opendj.ldap.ByteStringBuilder; 034import org.w3c.dom.Element; 035 036/** 037 * A utility class to assist in converting DsmlValues (in Objects) into 038 * the required ByteStrings, and back again. 039 */ 040public class ByteStringUtility 041{ 042 /** 043 * Returns a ByteString from a DsmlValue Object. 044 * 045 * @param obj 046 * the DsmlValue object. 047 * @return a new ByteString object with the value, or null if val was null, 048 * or if it could not be converted. 049 * @throws IOException if any problems occurred retrieving an anyURI value. 050 */ 051 public static ByteString convertValue(Object obj) throws IOException 052 { 053 ByteString bs = null; 054 if (obj != null) 055 { 056 if (obj instanceof String) 057 { 058 bs = ByteString.valueOf((String)obj); 059 } 060 else if (obj instanceof byte []) 061 { 062 bs = ByteString.wrap((byte [])obj); 063 } 064 else if (obj instanceof URI) 065 { 066 // read raw content and return as a byte[]. 067 InputStream is = null; 068 try 069 { 070 is = ((URI) obj).toURL().openStream(); 071 ByteStringBuilder bsb = new ByteStringBuilder(); 072 while (bsb.append(is, 2048) != -1) 073 { 074 // do nothing 075 } 076 bs = bsb.toByteString(); 077 } 078 finally 079 { 080 if (is != null) 081 { 082 is.close(); 083 } 084 } 085 } 086 else if (obj instanceof Element) 087 { 088 Element element = (Element) obj; 089 bs = ByteString.valueOf(element.getTextContent()); 090 } 091 } 092 return bs; 093 } 094 095 /** 096 * Returns a DsmlValue (Object) from an LDAP ByteString. The conversion is 097 * simplistic - try and convert it to UTF-8 and if that fails return a byte[]. 098 * 099 * @param bs the ByteString returned from LDAP. 100 * @return a String or a byte[]. 101 */ 102 public static Object convertByteString(ByteString bs) 103 { 104 try 105 { 106 return new String(bs.toCharArray()); 107 } 108 catch (Exception e) 109 { 110 return bs.toByteArray(); 111 } 112 } 113}