1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.bcel.classfile;
20
21 import java.io.DataOutputStream;
22 import java.io.IOException;
23
24 /**
25 * Represents an array element value in an annotation.
26 *
27 * @since 6.0
28 */
29 public class ArrayElementValue extends ElementValue {
30 // For array types, this is the array
31 private final ElementValue[] elementValues;
32
33 /**
34 * Constructs an ArrayElementValue.
35 *
36 * @param type the type.
37 * @param elementValues the element values.
38 * @param cpool the constant pool.
39 */
40 public ArrayElementValue(final int type, final ElementValue[] elementValues, final ConstantPool cpool) {
41 super(type, cpool);
42 if (type != ARRAY) {
43 throw new ClassFormatException("Only element values of type array can be built with this ctor - type specified: " + type);
44 }
45 this.elementValues = elementValues != null ? elementValues : EMPTY_ARRAY;
46 }
47
48 @Override
49 public void dump(final DataOutputStream dos) throws IOException {
50 dos.writeByte(super.getType()); // u1 type of value (ARRAY == '[')
51 dos.writeShort(elementValues.length);
52 for (final ElementValue evalue : elementValues) {
53 evalue.dump(dos);
54 }
55 }
56
57 /**
58 * Gets the element values array.
59 *
60 * @return the element values array.
61 */
62 public ElementValue[] getElementValuesArray() {
63 return elementValues;
64 }
65
66 /**
67 * Gets the element values array size.
68 *
69 * @return the element values array size.
70 */
71 public int getElementValuesArraySize() {
72 return elementValues.length;
73 }
74
75 @Override
76 public String stringifyValue() {
77 final StringBuilder sb = new StringBuilder();
78 sb.append("[");
79 for (int i = 0; i < elementValues.length; i++) {
80 sb.append(elementValues[i].stringifyValue());
81 if (i + 1 < elementValues.length) {
82 sb.append(",");
83 }
84 }
85 sb.append("]");
86 return sb.toString();
87 }
88
89 @Override
90 public String toString() {
91 final StringBuilder sb = new StringBuilder();
92 sb.append("{");
93 for (int i = 0; i < elementValues.length; i++) {
94 sb.append(elementValues[i]);
95 if (i + 1 < elementValues.length) {
96 sb.append(",");
97 }
98 }
99 sb.append("}");
100 return sb.toString();
101 }
102 }