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/*
 * Copyright 2013 EMC Corporation. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 * http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 * or in the "license" file accompanying this file. This file 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.emc.atmos.api;

import com.emc.atmos.api.bean.Permission;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

public class Acl {
    public static final String GROUP_OTHER = "other";

    private Map userAcl;
    private Map groupAcl;

    public Acl() {
        this.userAcl = new TreeMap();
        this.groupAcl = new TreeMap();
    }

    public Acl( Map userAcl, Map groupAcl ) {
        this.userAcl = userAcl;
        this.groupAcl = groupAcl;
    }

    public Map getGroupAcl() {
        return groupAcl;
    }

    public List getGroupAclHeader() {
        List values = new ArrayList();

        // empty ACL still needs to be set
        if ( groupAcl.isEmpty() ) values.add( "" );

        for ( String name : groupAcl.keySet() ) {
            values.add( name + "=" + groupAcl.get( name ) );
        }

        return values;
    }

    public void setGroupAcl( Map groupAcl ) {
        this.groupAcl = groupAcl;
    }

    public Map getUserAcl() {
        return userAcl;
    }

    public List getUserAclHeader() {
        List values = new ArrayList();

        // empty ACL still needs to be set
        if ( userAcl.isEmpty() ) values.add( "" );

        for ( String name : userAcl.keySet() ) {
            values.add( name + "=" + userAcl.get( name ) );
        }

        return values;
    }

    public void setUserAcl( Map userAcl ) {
        this.userAcl = userAcl;
    }

    public Acl addUserGrant( String name, Permission permission ) {
        this.userAcl.put( name, permission );
        return this;
    }

    public Acl removeUserGrant( String name ) {
        this.userAcl.remove( name );
        return this;
    }

    public Acl addGroupGrant( String name, Permission permission ) {
        this.groupAcl.put( name, permission );
        return this;
    }

    public Acl removeGroupGrant( String name ) {
        this.groupAcl.remove( name );
        return this;
    }

    @Override
    public boolean equals( Object o ) {
        if ( this == o ) return true;
        if ( o == null || getClass() != o.getClass() ) return false;

        Acl acl = (Acl) o;

        if ( !groupAcl.equals( acl.groupAcl ) ) return false;
        if ( !userAcl.equals( acl.userAcl ) ) return false;

        return true;
    }

    @Override
    public int hashCode() {
        int result = userAcl.hashCode();
        result = 31 * result + groupAcl.hashCode();
        return result;
    }
}
    

    

    

            

    

            



    
    






    
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