com.mercatis.lighthouse3.security.ui.model.GroupAccessor.java Source code

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Here is the source code for com.mercatis.lighthouse3.security.ui.model.GroupAccessor.java

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/*
 * Copyright 2011 mercatis Technologies AG
 * 
 * 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.mercatis.lighthouse3.security.ui.model;

import java.util.List;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;

import com.mercatis.lighthouse3.base.ui.provider.LabelConverter;
import com.mercatis.lighthouse3.domainmodel.users.ContextRoleAssignment;
import com.mercatis.lighthouse3.domainmodel.users.Group;
import com.mercatis.lighthouse3.ui.environment.base.model.LighthouseDomain;
import com.mercatis.lighthouse3.ui.security.internal.Security;

/**
 * This class specializes {@link AbstractAccessor} as an GroupAccessor.
 * 
 * @see AbstractAccessor
 */
public class GroupAccessor extends AbstractAccessor {

    /**
     * The {@link Group} this {@link GroupAccessor} represents
     */
    private Group group;

    /**
     * A neat {@link Image} shared over all instances
     */
    private static Image image;

    /**
     * Creates a new instance of {@link GroupAccessor}
     * with given {@link LighthouseDomain} and {@link Group}
     * 
     * @param lighthouseDomain
     * @param group
     */
    public GroupAccessor(LighthouseDomain lighthouseDomain, Group group) {
        super(lighthouseDomain);
        this.group = group;
    }

    /* (non-Javadoc)
     * @see com.mercatis.lighthouse3.security.ui.model.AbstractAccessor#getLabel()
     */
    @Override
    public String getLabel() {
        return LabelConverter.getLabel(group);
    }

    public Group getGroup() {
        return this.group;
    }

    /* (non-Javadoc)
     * @see com.mercatis.lighthouse3.security.ui.model.AbstractAccessor#getAssignments(java.lang.String)
     */
    @Override
    protected List<ContextRoleAssignment> getAssignments(String context) {
        return Security.getService().findAssignmentsForGroupAndContext(lighthouseDomain.getProject(), getGroup(),
                context);
    }

    /* (non-Javadoc)
     * @see com.mercatis.lighthouse3.security.ui.model.AbstractAccessor#getImage()
     */
    @Override
    public Image getImage() {
        if (image == null) {
            image = ImageDescriptor.createFromURL(getClass().getResource("/icons/group.png")).createImage();
        }
        return image;
    }

    /* (non-Javadoc)
     * @see com.mercatis.lighthouse3.security.ui.model.AbstractAccessor#setCodeOnAssignment(com.mercatis.lighthouse3.domainmodel.users.ContextRoleAssignment)
     */
    @Override
    protected void setCodeOnAssignment(ContextRoleAssignment assignment) {
        assignment.setGroupCode(getGroup().getCode());
    }

    /* (non-Javadoc)
     * @see com.mercatis.lighthouse3.security.ui.model.AbstractAccessor#loadContexts()
     */
    @Override
    protected List<String> loadContexts() {
        return Security.getService().findContextsForGroup(lighthouseDomain.getProject(), getGroup());
    }

    /* (non-Javadoc)
     * @see com.mercatis.lighthouse3.security.ui.model.AbstractAccessor#equals(java.lang.Object)
     */
    @Override
    public boolean equals(Object obj) {
        if (obj == null)
            return false;
        if (obj instanceof GroupAccessor) {
            GroupAccessor other = (GroupAccessor) obj;
            return group.equals(other.group) && lighthouseDomain.equals(other.lighthouseDomain);
        }
        return false;
    }

    /* (non-Javadoc)
     * @see com.mercatis.lighthouse3.security.ui.model.AbstractAccessor#hashCode()
     */
    @Override
    public int hashCode() {
        return getGroup().hashCode() * 17;
    }
}