src/main/java/org/apache/bcel/classfile/ArrayElementValue.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.bcel.classfile;

import java.io.DataOutputStream;
import java.io.IOException;

/**
 * Represents an array element value in an annotation.
 *
 * @since 6.0
 */
public class ArrayElementValue extends ElementValue {
    // For array types, this is the array
    private final ElementValue[] elementValues;

    /**
     * Constructs an ArrayElementValue.
     *
     * @param type the type.
     * @param elementValues the element values.
     * @param cpool the constant pool.
     */
    public ArrayElementValue(final int type, final ElementValue[] elementValues, final ConstantPool cpool) {
        super(type, cpool);
        if (type != ARRAY) {
            throw new ClassFormatException("Only element values of type array can be built with this ctor - type specified: " + type);
        }
        this.elementValues = elementValues != null ? elementValues : EMPTY_ARRAY;
    }

    @Override
    public void dump(final DataOutputStream dos) throws IOException {
        dos.writeByte(super.getType()); // u1 type of value (ARRAY == '[')
        dos.writeShort(elementValues.length);
        for (final ElementValue evalue : elementValues) {
            evalue.dump(dos);
        }
    }

    /**
     * Gets the element values array.
     *
     * @return the element values array.
     */
    public ElementValue[] getElementValuesArray() {
        return elementValues;
    }

    /**
     * Gets the element values array size.
     *
     * @return the element values array size.
     */
    public int getElementValuesArraySize() {
        return elementValues.length;
    }

    @Override
    public String stringifyValue() {
        final StringBuilder sb = new StringBuilder();
        sb.append("[");
        for (int i = 0; i < elementValues.length; i++) {
            sb.append(elementValues[i].stringifyValue());
            if (i + 1 < elementValues.length) {
                sb.append(",");
            }
        }
        sb.append("]");
        return sb.toString();
    }

    @Override
    public String toString() {
        final StringBuilder sb = new StringBuilder();
        sb.append("{");
        for (int i = 0; i < elementValues.length; i++) {
            sb.append(elementValues[i]);
            if (i + 1 < elementValues.length) {
                sb.append(",");
            }
        }
        sb.append("}");
        return sb.toString();
    }
}