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Apache Commons Compress defines an API for working with
compression and archive formats. These include bzip2, gzip, pack200,
LZMA, XZ, Snappy, traditional Unix Compress, DEFLATE, DEFLATE64, LZ4,
Brotli, Zstandard and ar, cpio, jar, tar, zip, dump, 7z, arj.
/*
* 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.commons.compress.harmony.unpack200;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.compress.harmony.pack200.Pack200Exception;
/**
* Stores a mapping from attribute names to their corresponding layout types. Note that names of attribute layouts and their formats are not
* internationalized, and should not be translated.
*/
public class AttributeLayoutMap {
// Create all the default AttributeLayouts here
private static AttributeLayout[] getDefaultAttributeLayouts() throws Pack200Exception {
return new AttributeLayout[] { new AttributeLayout(AttributeLayout.ACC_PUBLIC, AttributeLayout.CONTEXT_CLASS, "", 0),
new AttributeLayout(AttributeLayout.ACC_PUBLIC, AttributeLayout.CONTEXT_FIELD, "", 0),
new AttributeLayout(AttributeLayout.ACC_PUBLIC, AttributeLayout.CONTEXT_METHOD, "", 0),
new AttributeLayout(AttributeLayout.ACC_PRIVATE, AttributeLayout.CONTEXT_CLASS, "", 1),
new AttributeLayout(AttributeLayout.ACC_PRIVATE, AttributeLayout.CONTEXT_FIELD, "", 1),
new AttributeLayout(AttributeLayout.ACC_PRIVATE, AttributeLayout.CONTEXT_METHOD, "", 1),
new AttributeLayout(AttributeLayout.ATTRIBUTE_LINE_NUMBER_TABLE, AttributeLayout.CONTEXT_CODE, "NH[PHH]", 1),
new AttributeLayout(AttributeLayout.ACC_PROTECTED, AttributeLayout.CONTEXT_CLASS, "", 2),
new AttributeLayout(AttributeLayout.ACC_PROTECTED, AttributeLayout.CONTEXT_FIELD, "", 2),
new AttributeLayout(AttributeLayout.ACC_PROTECTED, AttributeLayout.CONTEXT_METHOD, "", 2),
new AttributeLayout(AttributeLayout.ATTRIBUTE_LOCAL_VARIABLE_TABLE, AttributeLayout.CONTEXT_CODE, "NH[PHOHRUHRSHH]", 2),
new AttributeLayout(AttributeLayout.ACC_STATIC, AttributeLayout.CONTEXT_CLASS, "", 3),
new AttributeLayout(AttributeLayout.ACC_STATIC, AttributeLayout.CONTEXT_FIELD, "", 3),
new AttributeLayout(AttributeLayout.ACC_STATIC, AttributeLayout.CONTEXT_METHOD, "", 3),
new AttributeLayout(AttributeLayout.ATTRIBUTE_LOCAL_VARIABLE_TYPE_TABLE, AttributeLayout.CONTEXT_CODE, "NH[PHOHRUHRSHH]", 3),
new AttributeLayout(AttributeLayout.ACC_FINAL, AttributeLayout.CONTEXT_CLASS, "", 4),
new AttributeLayout(AttributeLayout.ACC_FINAL, AttributeLayout.CONTEXT_FIELD, "", 4),
new AttributeLayout(AttributeLayout.ACC_FINAL, AttributeLayout.CONTEXT_METHOD, "", 4),
new AttributeLayout(AttributeLayout.ACC_SYNCHRONIZED, AttributeLayout.CONTEXT_CLASS, "", 5),
new AttributeLayout(AttributeLayout.ACC_SYNCHRONIZED, AttributeLayout.CONTEXT_FIELD, "", 5),
new AttributeLayout(AttributeLayout.ACC_SYNCHRONIZED, AttributeLayout.CONTEXT_METHOD, "", 5),
new AttributeLayout(AttributeLayout.ACC_VOLATILE, AttributeLayout.CONTEXT_CLASS, "", 6),
new AttributeLayout(AttributeLayout.ACC_VOLATILE, AttributeLayout.CONTEXT_FIELD, "", 6),
new AttributeLayout(AttributeLayout.ACC_VOLATILE, AttributeLayout.CONTEXT_METHOD, "", 6),
new AttributeLayout(AttributeLayout.ACC_TRANSIENT, AttributeLayout.CONTEXT_CLASS, "", 7),
new AttributeLayout(AttributeLayout.ACC_TRANSIENT, AttributeLayout.CONTEXT_FIELD, "", 7),
new AttributeLayout(AttributeLayout.ACC_TRANSIENT, AttributeLayout.CONTEXT_METHOD, "", 7),
new AttributeLayout(AttributeLayout.ACC_NATIVE, AttributeLayout.CONTEXT_CLASS, "", 8),
new AttributeLayout(AttributeLayout.ACC_NATIVE, AttributeLayout.CONTEXT_FIELD, "", 8),
new AttributeLayout(AttributeLayout.ACC_NATIVE, AttributeLayout.CONTEXT_METHOD, "", 8),
new AttributeLayout(AttributeLayout.ACC_INTERFACE, AttributeLayout.CONTEXT_CLASS, "", 9),
new AttributeLayout(AttributeLayout.ACC_INTERFACE, AttributeLayout.CONTEXT_FIELD, "", 9),
new AttributeLayout(AttributeLayout.ACC_INTERFACE, AttributeLayout.CONTEXT_METHOD, "", 9),
new AttributeLayout(AttributeLayout.ACC_ABSTRACT, AttributeLayout.CONTEXT_CLASS, "", 10),
new AttributeLayout(AttributeLayout.ACC_ABSTRACT, AttributeLayout.CONTEXT_FIELD, "", 10),
new AttributeLayout(AttributeLayout.ACC_ABSTRACT, AttributeLayout.CONTEXT_METHOD, "", 10),
new AttributeLayout(AttributeLayout.ACC_STRICT, AttributeLayout.CONTEXT_CLASS, "", 11),
new AttributeLayout(AttributeLayout.ACC_STRICT, AttributeLayout.CONTEXT_FIELD, "", 11),
new AttributeLayout(AttributeLayout.ACC_STRICT, AttributeLayout.CONTEXT_METHOD, "", 11),
new AttributeLayout(AttributeLayout.ACC_SYNTHETIC, AttributeLayout.CONTEXT_CLASS, "", 12),
new AttributeLayout(AttributeLayout.ACC_SYNTHETIC, AttributeLayout.CONTEXT_FIELD, "", 12),
new AttributeLayout(AttributeLayout.ACC_SYNTHETIC, AttributeLayout.CONTEXT_METHOD, "", 12),
new AttributeLayout(AttributeLayout.ACC_ANNOTATION, AttributeLayout.CONTEXT_CLASS, "", 13),
new AttributeLayout(AttributeLayout.ACC_ANNOTATION, AttributeLayout.CONTEXT_FIELD, "", 13),
new AttributeLayout(AttributeLayout.ACC_ANNOTATION, AttributeLayout.CONTEXT_METHOD, "", 13),
new AttributeLayout(AttributeLayout.ACC_ENUM, AttributeLayout.CONTEXT_CLASS, "", 14),
new AttributeLayout(AttributeLayout.ACC_ENUM, AttributeLayout.CONTEXT_FIELD, "", 14),
new AttributeLayout(AttributeLayout.ACC_ENUM, AttributeLayout.CONTEXT_METHOD, "", 14),
new AttributeLayout(AttributeLayout.ATTRIBUTE_SOURCE_FILE, AttributeLayout.CONTEXT_CLASS, "RUNH", 17),
new AttributeLayout(AttributeLayout.ATTRIBUTE_CONSTANT_VALUE, AttributeLayout.CONTEXT_FIELD, "KQH", 17),
new AttributeLayout(AttributeLayout.ATTRIBUTE_CODE, AttributeLayout.CONTEXT_METHOD, "", 17),
new AttributeLayout(AttributeLayout.ATTRIBUTE_ENCLOSING_METHOD, AttributeLayout.CONTEXT_CLASS, "RCHRDNH", 18),
new AttributeLayout(AttributeLayout.ATTRIBUTE_EXCEPTIONS, AttributeLayout.CONTEXT_METHOD, "NH[RCH]", 18),
new AttributeLayout(AttributeLayout.ATTRIBUTE_SIGNATURE, AttributeLayout.CONTEXT_CLASS, "RSH", 19),
new AttributeLayout(AttributeLayout.ATTRIBUTE_SIGNATURE, AttributeLayout.CONTEXT_FIELD, "RSH", 19),
new AttributeLayout(AttributeLayout.ATTRIBUTE_SIGNATURE, AttributeLayout.CONTEXT_METHOD, "RSH", 19),
new AttributeLayout(AttributeLayout.ATTRIBUTE_DEPRECATED, AttributeLayout.CONTEXT_CLASS, "", 20),
new AttributeLayout(AttributeLayout.ATTRIBUTE_DEPRECATED, AttributeLayout.CONTEXT_FIELD, "", 20),
new AttributeLayout(AttributeLayout.ATTRIBUTE_DEPRECATED, AttributeLayout.CONTEXT_METHOD, "", 20),
new AttributeLayout(AttributeLayout.ATTRIBUTE_RUNTIME_VISIBLE_ANNOTATIONS, AttributeLayout.CONTEXT_CLASS, "*", 21),
new AttributeLayout(AttributeLayout.ATTRIBUTE_RUNTIME_VISIBLE_ANNOTATIONS, AttributeLayout.CONTEXT_FIELD, "*", 21),
new AttributeLayout(AttributeLayout.ATTRIBUTE_RUNTIME_VISIBLE_ANNOTATIONS, AttributeLayout.CONTEXT_METHOD, "*", 21),
new AttributeLayout(AttributeLayout.ATTRIBUTE_RUNTIME_INVISIBLE_ANNOTATIONS, AttributeLayout.CONTEXT_CLASS, "*", 22),
new AttributeLayout(AttributeLayout.ATTRIBUTE_RUNTIME_INVISIBLE_ANNOTATIONS, AttributeLayout.CONTEXT_FIELD, "*", 22),
new AttributeLayout(AttributeLayout.ATTRIBUTE_RUNTIME_INVISIBLE_ANNOTATIONS, AttributeLayout.CONTEXT_METHOD, "*", 22),
new AttributeLayout(AttributeLayout.ATTRIBUTE_INNER_CLASSES, AttributeLayout.CONTEXT_CLASS, "", 23),
new AttributeLayout(AttributeLayout.ATTRIBUTE_RUNTIME_VISIBLE_PARAMETER_ANNOTATIONS, AttributeLayout.CONTEXT_METHOD, "*", 23),
new AttributeLayout(AttributeLayout.ATTRIBUTE_CLASS_FILE_VERSION, AttributeLayout.CONTEXT_CLASS, "", 24),
new AttributeLayout(AttributeLayout.ATTRIBUTE_RUNTIME_INVISIBLE_PARAMETER_ANNOTATIONS, AttributeLayout.CONTEXT_METHOD, "*", 24),
new AttributeLayout(AttributeLayout.ATTRIBUTE_ANNOTATION_DEFAULT, AttributeLayout.CONTEXT_METHOD, "*", 25) };
}
private final Map classLayouts = new HashMap<>();
private final Map fieldLayouts = new HashMap<>();
private final Map methodLayouts = new HashMap<>();
private final Map codeLayouts = new HashMap<>();
/**
* The order of the maps in this array should not be changed as their indices correspond to the value of their context constants
* (AttributeLayout.CONTEXT_CLASS etc.)
*
* All elements are of type {@code Map}.
*
*/
@SuppressWarnings("unchecked") // Cannot create a generic array
private final Map[] layouts = new Map[] { classLayouts, fieldLayouts, methodLayouts, codeLayouts };
private final Map layoutsToBands = new HashMap<>();
public AttributeLayoutMap() throws Pack200Exception {
for (final AttributeLayout defaultAttributeLayout : getDefaultAttributeLayouts()) {
add(defaultAttributeLayout);
}
}
public void add(final AttributeLayout layout) {
getLayout(layout.getContext()).put(Integer.valueOf(layout.getIndex()), layout);
}
public void add(final AttributeLayout layout, final NewAttributeBands newBands) {
add(layout);
layoutsToBands.put(layout, newBands);
}
/**
* The map should not contain the same layout and name combination more than once for each context.
*
* @throws Pack200Exception Thrown when the name layout/name combination exists twice for a context.
*/
public void checkMap() throws Pack200Exception {
for (final Map map : layouts) {
Collection c = map.values();
if (!(c instanceof List)) {
c = new ArrayList<>(c);
}
final List layouts = (List) c;
for (int j = 0; j < layouts.size(); j++) {
final AttributeLayout layout1 = layouts.get(j);
for (int j2 = j + 1; j2 < layouts.size(); j2++) {
final AttributeLayout layout2 = layouts.get(j2);
if (layout1.getName().equals(layout2.getName()) && layout1.getLayout().equals(layout2.getLayout())) {
throw new Pack200Exception("Same layout/name combination: " + layout1.getLayout() + "/" + layout1.getName()
+ " exists twice for context: " + AttributeLayout.contextNames[layout1.getContext()]);
}
}
}
}
}
public NewAttributeBands getAttributeBands(final AttributeLayout layout) {
return layoutsToBands.get(layout);
}
public AttributeLayout getAttributeLayout(final int index, final int context) {
final Map map = getLayout(context);
return map.get(Integer.valueOf(index));
}
public AttributeLayout getAttributeLayout(final String name, final int context) {
final Map map = getLayout(context);
for (final AttributeLayout layout : map.values()) {
if (layout.getName().equals(name)) {
return layout;
}
}
return null;
}
private Map getLayout(final int context) {
return layouts[context];
}
}
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