1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 package org.apache.bcel.generic; 19 20 import java.io.DataOutputStream; 21 import java.io.IOException; 22 import java.util.ArrayList; 23 import java.util.List; 24 25 import org.apache.bcel.classfile.ArrayElementValue; 26 import org.apache.bcel.classfile.ElementValue; 27 28 /** 29 * @since 6.0 30 */ 31 public class ArrayElementValueGen extends ElementValueGen 32 { 33 // J5TODO: Should we make this an array or a list? A list would be easier to 34 // modify ... 35 private final List<ElementValueGen> evalues; 36 ArrayElementValueGen(final ConstantPoolGen cp)37 public ArrayElementValueGen(final ConstantPoolGen cp) 38 { 39 super(ARRAY, cp); 40 evalues = new ArrayList<>(); 41 } 42 ArrayElementValueGen(final int type, final ElementValue[] datums, final ConstantPoolGen cpool)43 public ArrayElementValueGen(final int type, final ElementValue[] datums, 44 final ConstantPoolGen cpool) 45 { 46 super(type, cpool); 47 if (type != ARRAY) { 48 throw new RuntimeException( 49 "Only element values of type array can be built with this ctor - type specified: " + type); 50 } 51 this.evalues = new ArrayList<>(); 52 for (final ElementValue datum : datums) { 53 evalues.add(ElementValueGen.copy(datum, cpool, true)); 54 } 55 } 56 57 /** 58 * Return immutable variant of this ArrayElementValueGen 59 */ 60 @Override getElementValue()61 public ElementValue getElementValue() 62 { 63 final ElementValue[] immutableData = new ElementValue[evalues.size()]; 64 int i = 0; 65 for (final ElementValueGen element : evalues) { 66 immutableData[i++] = element.getElementValue(); 67 } 68 return new ArrayElementValue(super.getElementValueType(), 69 immutableData, 70 getConstantPool().getConstantPool()); 71 } 72 73 /** 74 * @param value 75 * @param cpool 76 */ ArrayElementValueGen(final ArrayElementValue value, final ConstantPoolGen cpool, final boolean copyPoolEntries)77 public ArrayElementValueGen(final ArrayElementValue value, final ConstantPoolGen cpool, 78 final boolean copyPoolEntries) 79 { 80 super(ARRAY, cpool); 81 evalues = new ArrayList<>(); 82 final ElementValue[] in = value.getElementValuesArray(); 83 for (final ElementValue element : in) { 84 evalues.add(ElementValueGen.copy(element, cpool, copyPoolEntries)); 85 } 86 } 87 88 @Override dump(final DataOutputStream dos)89 public void dump(final DataOutputStream dos) throws IOException 90 { 91 dos.writeByte(super.getElementValueType()); // u1 type of value (ARRAY == '[') 92 dos.writeShort(evalues.size()); 93 for (final ElementValueGen element : evalues) { 94 element.dump(dos); 95 } 96 } 97 98 @Override stringifyValue()99 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 getElementValues()113 public List<ElementValueGen> getElementValues() 114 { 115 return evalues; 116 } 117 getElementValuesSize()118 public int getElementValuesSize() 119 { 120 return evalues.size(); 121 } 122 addElement(final ElementValueGen gen)123 public void addElement(final ElementValueGen gen) 124 { 125 evalues.add(gen); 126 } 127 } 128