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// Copyright (C) 2010 The Android Open Source Project
//
// Licensed 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 com.google.gerrit.common.data;
import com.google.gerrit.reviewdb.client.Project;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
/** Portion of a {@link Project} describing access rules. */
public class AccessSection extends RefConfigSection implements
Comparable<AccessSection> {
/** Special name given to the global capabilities; not a valid reference. */
public static final String GLOBAL_CAPABILITIES = "GLOBAL_CAPABILITIES";
protected List<Permission> permissions;
protected AccessSection() {
}
public AccessSection(String refPattern) {
super(refPattern);
}
public List<Permission> getPermissions() {
if (permissions == null) {
permissions = new ArrayList<Permission>();
}
return permissions;
}
public void setPermissions(List<Permission> list) {
Set<String> names = new HashSet<String>();
for (Permission p : list) {
if (!names.add(p.getName().toLowerCase())) {
throw new IllegalArgumentException();
}
}
permissions = list;
}
public Permission getPermission(String name) {
return getPermission(name, false);
}
public Permission getPermission(String name, boolean create) {
for (Permission p : getPermissions()) {
if (p.getName().equalsIgnoreCase(name)) {
return p;
}
}
if (create) {
Permission p = new Permission(name);
permissions.add(p);
return p;
} else {
return null;
}
}
public void remove(Permission permission) {
if (permission != null) {
removePermission(permission.getName());
}
}
public void removePermission(String name) {
if (permissions != null) {
for (Iterator<Permission> itr = permissions.iterator(); itr.hasNext();) {
if (name.equalsIgnoreCase(itr.next().getName())) {
itr.remove();
}
}
}
}
public void mergeFrom(AccessSection section) {
for (Permission src : section.getPermissions()) {
Permission dst = getPermission(src.getName());
if (dst != null) {
dst.mergeFrom(src);
} else {
permissions.add(src);
}
}
}
@Override
public int compareTo(AccessSection o) {
return comparePattern().compareTo(o.comparePattern());
}
private String comparePattern() {
if (getName().startsWith(REGEX_PREFIX)) {
return getName().substring(REGEX_PREFIX.length());
}
return getName();
}
@Override
public String toString() {
return "AccessSection[" + getName() + "]";
}
@Override
public boolean equals(final Object obj) {
if (!super.equals(obj) || !(obj instanceof AccessSection)) {
return false;
}
return new HashSet<Permission>(getPermissions()).equals(new HashSet<Permission>(
((AccessSection) obj).getPermissions()));
}
}
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