| /* |
| * 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 |
| * |
| * http://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.DataInput; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| import org.apache.bcel.Const; |
| |
| /** |
| * This class represents a BootstrapMethods attribute. |
| * |
| * @see <a href="http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.7.23"> |
| * The class File Format : The BootstrapMethods Attribute</a> |
| * @since 6.0 |
| */ |
| public class BootstrapMethods extends Attribute { |
| |
| private BootstrapMethod[] bootstrap_methods; // TODO this could be made final (setter is not used) |
| |
| /** |
| * Initialize from another object. Note that both objects use the same |
| * references (shallow copy). Use clone() for a physical copy. |
| */ |
| public BootstrapMethods(final BootstrapMethods c) { |
| this(c.getNameIndex(), c.getLength(), c.getBootstrapMethods(), c.getConstantPool()); |
| } |
| |
| |
| /** |
| * @param name_index Index in constant pool to CONSTANT_Utf8 |
| * @param length Content length in bytes |
| * @param bootstrap_methods array of bootstrap methods |
| * @param constant_pool Array of constants |
| */ |
| public BootstrapMethods(final int name_index, final int length, final BootstrapMethod[] bootstrap_methods, final ConstantPool constant_pool) { |
| super(Const.ATTR_BOOTSTRAP_METHODS, name_index, length, constant_pool); |
| this.bootstrap_methods = bootstrap_methods; |
| } |
| |
| /** |
| * Construct object from Input stream. |
| * |
| * @param name_index Index in constant pool to CONSTANT_Utf8 |
| * @param length Content length in bytes |
| * @param input Input stream |
| * @param constant_pool Array of constants |
| * @throws IOException |
| */ |
| BootstrapMethods(final int name_index, final int length, final DataInput input, final ConstantPool constant_pool) throws IOException { |
| this(name_index, length, (BootstrapMethod[]) null, constant_pool); |
| |
| final int num_bootstrap_methods = input.readUnsignedShort(); |
| bootstrap_methods = new BootstrapMethod[num_bootstrap_methods]; |
| for (int i = 0; i < num_bootstrap_methods; i++) { |
| bootstrap_methods[i] = new BootstrapMethod(input); |
| } |
| } |
| |
| /** |
| * @return array of bootstrap method "records" |
| */ |
| public final BootstrapMethod[] getBootstrapMethods() { |
| return bootstrap_methods; |
| } |
| |
| /** |
| * @param bootstrap_methods the array of bootstrap methods |
| */ |
| public final void setBootstrapMethods(final BootstrapMethod[] bootstrap_methods) { |
| this.bootstrap_methods = bootstrap_methods; |
| } |
| |
| /** |
| * @param v Visitor object |
| */ |
| @Override |
| public void accept(final Visitor v) { |
| v.visitBootstrapMethods(this); |
| } |
| |
| /** |
| * @return deep copy of this attribute |
| */ |
| @Override |
| public BootstrapMethods copy(final ConstantPool _constant_pool) { |
| final BootstrapMethods c = (BootstrapMethods) clone(); |
| c.bootstrap_methods = new BootstrapMethod[bootstrap_methods.length]; |
| |
| for (int i = 0; i < bootstrap_methods.length; i++) { |
| c.bootstrap_methods[i] = bootstrap_methods[i].copy(); |
| } |
| c.setConstantPool(_constant_pool); |
| return c; |
| } |
| |
| /** |
| * Dump bootstrap methods attribute to file stream in binary format. |
| * |
| * @param file Output file stream |
| * @throws IOException |
| */ |
| @Override |
| public final void dump(final DataOutputStream file) throws IOException { |
| super.dump(file); |
| |
| file.writeShort(bootstrap_methods.length); |
| for (final BootstrapMethod bootstrap_method : bootstrap_methods) { |
| bootstrap_method.dump(file); |
| } |
| } |
| |
| /** |
| * @return String representation. |
| */ |
| @Override |
| public final String toString() { |
| final StringBuilder buf = new StringBuilder(); |
| buf.append("BootstrapMethods("); |
| buf.append(bootstrap_methods.length); |
| buf.append("):\n"); |
| for (int i = 0; i < bootstrap_methods.length; i++) { |
| buf.append(" ").append(i).append(": "); |
| buf.append(bootstrap_methods[i].toString(super.getConstantPool())).append("\n"); |
| } |
| return buf.toString(); |
| } |
| } |