001/** 002 * 003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved. 004 * 005 * This library is free software; you can redistribute it and/or 006 * modify it under the terms of the GNU Lesser General Public 007 * License as published by the Free Software Foundation; either 008 * version 2.1 of the License, or (at your option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013 * Lesser General Public License for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public 016 * License along with this library. If not, see <http://www.gnu.org/licenses/>. 017 * 018 **/ 019package lucee.runtime.interpreter.ref.literal; 020 021import java.util.ArrayList; 022import java.util.Iterator; 023 024import lucee.runtime.PageContext; 025import lucee.runtime.exp.PageException; 026import lucee.runtime.interpreter.ref.Ref; 027import lucee.runtime.interpreter.ref.RefSupport; 028import lucee.runtime.interpreter.ref.util.RefUtil; 029import lucee.runtime.op.Caster; 030 031/** 032 * Literal String 033 * 034 */ 035public final class LStringBuffer extends RefSupport implements Literal { 036 037 private ArrayList refs=new ArrayList(); 038 private StringBuffer sb=new StringBuffer(); 039 040 /** 041 * constructor of the class 042 * @param str 043 */ 044 public LStringBuffer(String str) { 045 sb.append(str); 046 } 047 /** 048 * constructor of the class 049 * @param str 050 */ 051 public LStringBuffer() { 052 } 053 054 055 @Override 056 public Object getValue(PageContext pc) throws PageException { 057 if(refs.size()==0) return sb.toString(); 058 059 StringBuffer tmp=new StringBuffer(); 060 Iterator it = refs.iterator(); 061 while(it.hasNext()) { 062 tmp.append(Caster.toString(((Ref)it.next()).getValue(pc))); 063 } 064 if(sb.length()>0)tmp.append(sb); 065 066 067 return tmp.toString(); 068 } 069 070 public void append(Ref ref) { 071 if(sb.length()>0) { 072 refs.add(new LString(sb.toString())); 073 sb=new StringBuffer(); 074 } 075 refs.add(ref); 076 } 077 078 public void append(char c) { 079 sb.append(c); 080 } 081 public void append(String str) { 082 sb.append(str); 083 } 084 085 public boolean isEmpty() { 086 return sb.length()+refs.size()==0; 087 } 088 089 @Override 090 public String getTypeName() { 091 return "literal"; 092 } 093 094 @Override 095 public String getString(PageContext pc) throws PageException { 096 return (String) getValue(pc); 097 } 098 099 @Override 100 public boolean eeq(PageContext pc,Ref other) throws PageException { 101 return RefUtil.eeq(pc,this,other); 102 } 103}