/*
 * 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.commons.compress.harmony.unpack200.bytecode;

import java.io.DataOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

/**
 * AnnotationDefault class file attribute
 */
public class AnnotationDefaultAttribute extends AnnotationsAttribute {

    private static CPUTF8 attributeName;

    /**
     * Sets the attribute name.
     *
     * @param cpUTF8Value the attribute name.
     */
    public static void setAttributeName(final CPUTF8 cpUTF8Value) {
        attributeName = cpUTF8Value;
    }

    private final ElementValue elementValue;

    /**
     * Constructs a new instance.
     *
     * @param elementValue element value to track.
     */
    public AnnotationDefaultAttribute(final ElementValue elementValue) {
        super(attributeName);
        this.elementValue = elementValue;
    }

    @Override
    public boolean equals(final Object obj) {
        return this == obj;
    }

    @Override
    protected int getLength() {
        return elementValue.getLength();
    }

    @Override
    protected ClassFileEntry[] getNestedClassFileEntries() {
        final List<Object> nested = new ArrayList<>();
        nested.add(attributeName);
        nested.addAll(elementValue.getClassFileEntries());
        final ClassFileEntry[] nestedEntries = new ClassFileEntry[nested.size()];
        for (int i = 0; i < nestedEntries.length; i++) {
            nestedEntries[i] = (ClassFileEntry) nested.get(i);
        }
        return nestedEntries;
    }

    @Override
    protected void resolve(final ClassConstantPool pool) {
        super.resolve(pool);
        elementValue.resolve(pool);
    }

    @Override
    public String toString() {
        return "AnnotationDefault: " + elementValue;
    }

    @Override
    protected void writeBody(final DataOutputStream dos) throws IOException {
        elementValue.writeBody(dos);
    }

}
