src/share/classes/com/sun/tools/classfile/Attributes.java

changeset 46
7708bd6d800d
child 54
eaf608c64fec
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/classes/com/sun/tools/classfile/Attributes.java	Tue Jun 03 13:26:47 2008 -0700
     1.3 @@ -0,0 +1,87 @@
     1.4 +/*
     1.5 + * Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.  Sun designates this
    1.11 + * particular file as subject to the "Classpath" exception as provided
    1.12 + * by Sun in the LICENSE file that accompanied this code.
    1.13 + *
    1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.16 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.17 + * version 2 for more details (a copy is included in the LICENSE file that
    1.18 + * accompanied this code).
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License version
    1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.23 + *
    1.24 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    1.25 + * CA 95054 USA or visit www.sun.com if you need additional information or
    1.26 + * have any questions.
    1.27 + */
    1.28 +
    1.29 +package com.sun.tools.classfile;
    1.30 +
    1.31 +import java.io.IOException;
    1.32 +import java.util.Arrays;
    1.33 +import java.util.HashMap;
    1.34 +import java.util.Iterator;
    1.35 +import java.util.Map;
    1.36 +
    1.37 +/*
    1.38 + *  <p><b>This is NOT part of any API supported by Sun Microsystems.  If
    1.39 + *  you write code that depends on this, you do so at your own risk.
    1.40 + *  This code and its internal interfaces are subject to change or
    1.41 + *  deletion without notice.</b>
    1.42 + */
    1.43 +public class Attributes implements Iterable<Attribute> {
    1.44 +    Attributes(ClassReader cr) throws IOException {
    1.45 +        map = new HashMap<String,Attribute>();
    1.46 +        int attrs_count = cr.readUnsignedShort();
    1.47 +        attrs = new Attribute[attrs_count];
    1.48 +        for (int i = 0; i < attrs_count; i++) {
    1.49 +            Attribute attr = Attribute.read(cr);
    1.50 +            attrs[i] = attr;
    1.51 +            try {
    1.52 +                map.put(attr.getName(cr.getConstantPool()), attr);
    1.53 +            } catch (ConstantPoolException e) {
    1.54 +                // don't enter invalid names in map
    1.55 +            }
    1.56 +        }
    1.57 +    }
    1.58 +
    1.59 +    public Attributes(ConstantPool constant_pool, Attribute[] attrs) {
    1.60 +        this.attrs = attrs;
    1.61 +        map = new HashMap<String,Attribute>();
    1.62 +        for (int i = 0; i < attrs.length; i++) {
    1.63 +            Attribute attr = attrs[i];
    1.64 +            try {
    1.65 +                map.put(attr.getName(constant_pool), attr);
    1.66 +            } catch (ConstantPoolException e) {
    1.67 +                // don't enter invalid names in map
    1.68 +            }
    1.69 +        }
    1.70 +    }
    1.71 +
    1.72 +    public Iterator<Attribute> iterator() {
    1.73 +        return Arrays.asList(attrs).iterator();
    1.74 +    }
    1.75 +
    1.76 +    public Attribute get(int index) {
    1.77 +        return attrs[index];
    1.78 +    }
    1.79 +
    1.80 +    public Attribute get(String name) {
    1.81 +        return map.get(name);
    1.82 +    }
    1.83 +
    1.84 +    public int size() {
    1.85 +        return attrs.length;
    1.86 +    }
    1.87 +
    1.88 +    public final Attribute[] attrs;
    1.89 +    public final Map<String, Attribute> map;
    1.90 +}

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