org.codice.ddf.catalog.ui.security.ShareableMetacardSharingPolicyPlugin.java Source code

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Here is the source code for org.codice.ddf.catalog.ui.security.ShareableMetacardSharingPolicyPlugin.java

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/**
 * Copyright (c) Codice Foundation
 *
 * <p>This is free software: you can redistribute it and/or modify it under the terms of the GNU
 * Lesser General Public License as published by the Free Software Foundation, either version 3 of
 * the License, or any later version.
 *
 * <p>This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details. A copy of the GNU Lesser General Public
 * License is distributed along with this program and can be found at
 * <http://www.gnu.org/licenses/lgpl.html>.
 */
package org.codice.ddf.catalog.ui.security;

import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Sets;
import ddf.catalog.data.Metacard;
import ddf.catalog.data.Result;
import ddf.catalog.data.types.Core;
import ddf.catalog.data.types.Security;
import ddf.catalog.operation.Query;
import ddf.catalog.operation.ResourceRequest;
import ddf.catalog.operation.ResourceResponse;
import ddf.catalog.plugin.PolicyPlugin;
import ddf.catalog.plugin.PolicyResponse;
import ddf.catalog.plugin.StopProcessingException;
import ddf.catalog.plugin.impl.PolicyResponseImpl;
import java.io.Serializable;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.apache.commons.lang3.StringUtils;

public class ShareableMetacardSharingPolicyPlugin implements PolicyPlugin {

    private static Map<String, Set<String>> getShareablePermissions() {
        ImmutableMap.Builder<String, Set<String>> builder = new ImmutableMap.Builder<>();
        Constants.SHAREABLE_TAGS.forEach(t -> builder.put(t, ImmutableSet.of(t)));
        return builder.build();
    }

    private static Map<String, Set<String>> getOwnerPermission(String owner) {
        return ImmutableMap.of(Core.METACARD_OWNER, ImmutableSet.of(owner));
    }

    private Map<String, Set<String>> getOwnerPermission(ShareableMetacardImpl shareableMetacard) {
        return Optional.of(shareableMetacard).map(ShareableMetacardImpl::getOwner).filter(StringUtils::isNotEmpty)
                .map(ShareableMetacardSharingPolicyPlugin::getOwnerPermission).orElseGet(ImmutableMap::of);
    }

    private Map<String, Set<String>> getIndividualPermission(ShareableMetacardImpl shareableMetacard) {
        return ImmutableMap.of(Security.ACCESS_INDIVIDUALS, shareableMetacard.getAccessIndividuals());
    }

    private Map<String, Set<String>> getGroupPermission(ShareableMetacardImpl shareableMetacard) {
        return ImmutableMap.of(Security.ACCESS_GROUPS, shareableMetacard.getAccessGroups());
    }

    private Map<String, Set<String>> getPolicy(ShareableMetacardImpl shareableMetacard) {
        return Stream
                .of(getShareablePermissions(), getOwnerPermission(shareableMetacard),
                        getGroupPermission(shareableMetacard), getIndividualPermission(shareableMetacard))
                .map(Map::entrySet).flatMap(Collection::stream).filter(entry -> !entry.getValue().isEmpty())
                .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue, Sets::union));
    }

    private Map<String, Set<String>> getPolicy(Metacard metacard) {
        return Optional.of(metacard).filter(ShareableMetacardImpl::canShare)
                .map(ShareableMetacardImpl::createOrThrow).map(this::getPolicy).orElseGet(ImmutableMap::of);
    }

    private Map<String, Set<String>> getPolicy(List<Metacard> metacards) {
        return metacards.stream().filter(ShareableMetacardImpl::canShare).map(ShareableMetacardImpl::createOrThrow)
                .map(this::getPolicy).map(Map::entrySet).flatMap(Collection::stream)
                .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue, Sets::union));
    }

    @Override
    public PolicyResponse processPostQuery(Result input, Map<String, Serializable> properties)
            throws StopProcessingException {
        Metacard metacard = input.getMetacard();
        return new PolicyResponseImpl(Collections.emptyMap(), getPolicy(metacard));
    }

    @Override
    public PolicyResponse processPreUpdate(Metacard metacard, Map<String, Serializable> properties)
            throws StopProcessingException {
        return new PolicyResponseImpl(Collections.emptyMap(), getPolicy(metacard));
    }

    @Override
    public PolicyResponse processPreDelete(List<Metacard> metacards, Map<String, Serializable> properties)
            throws StopProcessingException {
        return new PolicyResponseImpl(getPolicy(metacards), getPolicy(metacards));
    }

    @Override
    public PolicyResponse processPreCreate(Metacard input, Map<String, Serializable> properties)
            throws StopProcessingException {
        return new PolicyResponseImpl();
    }

    @Override
    public PolicyResponse processPostDelete(Metacard input, Map<String, Serializable> properties)
            throws StopProcessingException {
        return new PolicyResponseImpl();
    }

    @Override
    public PolicyResponse processPreQuery(Query query, Map<String, Serializable> properties)
            throws StopProcessingException {
        return new PolicyResponseImpl();
    }

    @Override
    public PolicyResponse processPreResource(ResourceRequest resourceRequest) throws StopProcessingException {
        return new PolicyResponseImpl();
    }

    @Override
    public PolicyResponse processPostResource(ResourceResponse resourceResponse, Metacard metacard)
            throws StopProcessingException {
        return new PolicyResponseImpl();
    }
}