jjg@46: /*
jjg@46:  * Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.
jjg@46:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@46:  *
jjg@46:  * This code is free software; you can redistribute it and/or modify it
jjg@46:  * under the terms of the GNU General Public License version 2 only, as
jjg@46:  * published by the Free Software Foundation.  Sun designates this
jjg@46:  * particular file as subject to the "Classpath" exception as provided
jjg@46:  * by Sun in the LICENSE file that accompanied this code.
jjg@46:  *
jjg@46:  * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@46:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@46:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jjg@46:  * version 2 for more details (a copy is included in the LICENSE file that
jjg@46:  * accompanied this code).
jjg@46:  *
jjg@46:  * You should have received a copy of the GNU General Public License version
jjg@46:  * 2 along with this work; if not, write to the Free Software Foundation,
jjg@46:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@46:  *
jjg@46:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
jjg@46:  * CA 95054 USA or visit www.sun.com if you need additional information or
jjg@46:  * have any questions.
jjg@46:  */
jjg@46: 
jjg@46: package com.sun.tools.classfile;
jjg@46: 
jjg@46: import java.io.IOException;
jjg@46: import java.util.Arrays;
jjg@46: import java.util.HashMap;
jjg@46: import java.util.Iterator;
jjg@46: import java.util.Map;
jjg@46: 
jjg@46: /*
jjg@46:  *  <p><b>This is NOT part of any API supported by Sun Microsystems.  If
jjg@46:  *  you write code that depends on this, you do so at your own risk.
jjg@46:  *  This code and its internal interfaces are subject to change or
jjg@46:  *  deletion without notice.</b>
jjg@46:  */
jjg@46: public class Attributes implements Iterable<Attribute> {
jjg@46:     Attributes(ClassReader cr) throws IOException {
jjg@46:         map = new HashMap<String,Attribute>();
jjg@46:         int attrs_count = cr.readUnsignedShort();
jjg@46:         attrs = new Attribute[attrs_count];
jjg@46:         for (int i = 0; i < attrs_count; i++) {
jjg@46:             Attribute attr = Attribute.read(cr);
jjg@46:             attrs[i] = attr;
jjg@46:             try {
jjg@46:                 map.put(attr.getName(cr.getConstantPool()), attr);
jjg@46:             } catch (ConstantPoolException e) {
jjg@46:                 // don't enter invalid names in map
jjg@46:             }
jjg@46:         }
jjg@46:     }
jjg@46: 
jjg@46:     public Attributes(ConstantPool constant_pool, Attribute[] attrs) {
jjg@46:         this.attrs = attrs;
jjg@46:         map = new HashMap<String,Attribute>();
jjg@46:         for (int i = 0; i < attrs.length; i++) {
jjg@46:             Attribute attr = attrs[i];
jjg@46:             try {
jjg@46:                 map.put(attr.getName(constant_pool), attr);
jjg@46:             } catch (ConstantPoolException e) {
jjg@46:                 // don't enter invalid names in map
jjg@46:             }
jjg@46:         }
jjg@46:     }
jjg@46: 
jjg@46:     public Iterator<Attribute> iterator() {
jjg@46:         return Arrays.asList(attrs).iterator();
jjg@46:     }
jjg@46: 
jjg@46:     public Attribute get(int index) {
jjg@46:         return attrs[index];
jjg@46:     }
jjg@46: 
jjg@46:     public Attribute get(String name) {
jjg@46:         return map.get(name);
jjg@46:     }
jjg@46: 
jjg@46:     public int size() {
jjg@46:         return attrs.length;
jjg@46:     }
jjg@46: 
jjg@46:     public final Attribute[] attrs;
jjg@46:     public final Map<String, Attribute> map;
jjg@46: }