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.net.rpc; 020 021import java.lang.reflect.Method; 022import java.util.Iterator; 023 024import lucee.commons.lang.ExceptionUtil; 025import lucee.commons.lang.Pair; 026import lucee.runtime.exp.PageRuntimeException; 027import lucee.runtime.op.Caster; 028import lucee.runtime.reflection.Reflector; 029import lucee.runtime.type.Collection; 030import lucee.runtime.type.KeyImpl; 031 032public class PojoIterator implements Iterator<Pair<Collection.Key,Object>> { 033 034 private static final Object[] EMPTY_ARG = new Object[]{}; 035 036 private Pojo pojo; 037 private Method[] getters; 038 private Class<? extends Pojo> clazz; 039 private int index=-1; 040 041 public PojoIterator(Pojo pojo) { 042 this.pojo=pojo; 043 this.clazz=pojo.getClass(); 044 getters = Reflector.getGetters(pojo.getClass()); 045 } 046 047 public int size() { 048 return getters.length; 049 } 050 051 @Override 052 public boolean hasNext() { 053 return (index+1)<getters.length; 054 } 055 056 @Override 057 public Pair<Collection.Key, Object> next() { 058 Method g = getters[++index]; 059 try { 060 061 return new Pair<Collection.Key, Object>(KeyImpl.init(g.getName().substring(3)), g.invoke(pojo, EMPTY_ARG)); 062 } 063 catch (Throwable t) { 064 ExceptionUtil.rethrowIfNecessary(t); 065 throw new PageRuntimeException(Caster.toPageException(t)); 066 } 067 } 068 069 @Override 070 public void remove() { 071 throw new RuntimeException("method remove is not supported!"); 072 } 073 074}