001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 * 017 */ 018package org.apache.bcel.generic; 019 020import java.io.DataOutputStream; 021import java.io.IOException; 022import java.util.ArrayList; 023import java.util.List; 024 025import org.apache.bcel.classfile.ArrayElementValue; 026import org.apache.bcel.classfile.ElementValue; 027 028/** 029 * @since 6.0 030 */ 031public class ArrayElementValueGen extends ElementValueGen 032{ 033 // J5TODO: Should we make this an array or a list? A list would be easier to 034 // modify ... 035 private final List<ElementValueGen> evalues; 036 037 public ArrayElementValueGen(final ConstantPoolGen cp) 038 { 039 super(ARRAY, cp); 040 evalues = new ArrayList<>(); 041 } 042 043 public ArrayElementValueGen(final int type, final ElementValue[] datums, 044 final ConstantPoolGen cpool) 045 { 046 super(type, cpool); 047 if (type != ARRAY) { 048 throw new RuntimeException( 049 "Only element values of type array can be built with this ctor - type specified: " + type); 050 } 051 this.evalues = new ArrayList<>(); 052 for (final ElementValue datum : datums) { 053 evalues.add(ElementValueGen.copy(datum, cpool, true)); 054 } 055 } 056 057 /** 058 * Return immutable variant of this ArrayElementValueGen 059 */ 060 @Override 061 public ElementValue getElementValue() 062 { 063 final ElementValue[] immutableData = new ElementValue[evalues.size()]; 064 int i = 0; 065 for (final ElementValueGen element : evalues) { 066 immutableData[i++] = element.getElementValue(); 067 } 068 return new ArrayElementValue(super.getElementValueType(), 069 immutableData, 070 getConstantPool().getConstantPool()); 071 } 072 073 /** 074 * @param value 075 * @param cpool 076 */ 077 public ArrayElementValueGen(final ArrayElementValue value, final ConstantPoolGen cpool, 078 final boolean copyPoolEntries) 079 { 080 super(ARRAY, cpool); 081 evalues = new ArrayList<>(); 082 final ElementValue[] in = value.getElementValuesArray(); 083 for (final ElementValue element : in) { 084 evalues.add(ElementValueGen.copy(element, cpool, copyPoolEntries)); 085 } 086 } 087 088 @Override 089 public void dump(final DataOutputStream dos) throws IOException 090 { 091 dos.writeByte(super.getElementValueType()); // u1 type of value (ARRAY == '[') 092 dos.writeShort(evalues.size()); 093 for (final ElementValueGen element : evalues) { 094 element.dump(dos); 095 } 096 } 097 098 @Override 099 public String stringifyValue() 100 { 101 final StringBuilder sb = new StringBuilder(); 102 sb.append("["); 103 String comma = ""; 104 for (final ElementValueGen element : evalues) { 105 sb.append(comma); 106 comma = ","; 107 sb.append(element.stringifyValue()); 108 } 109 sb.append("]"); 110 return sb.toString(); 111 } 112 113 public List<ElementValueGen> getElementValues() 114 { 115 return evalues; 116 } 117 118 public int getElementValuesSize() 119 { 120 return evalues.size(); 121 } 122 123 public void addElement(final ElementValueGen gen) 124 { 125 evalues.add(gen); 126 } 127}