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PolicyImportsRoute.java
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PolicyImportsRoute.java
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/*
* Copyright (c) 2022 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.gateway.service.endpoints.routes.policies;
import static org.eclipse.ditto.base.model.exceptions.DittoJsonException.wrapJsonRuntimeException;
import org.eclipse.ditto.base.model.headers.DittoHeaders;
import org.eclipse.ditto.gateway.service.endpoints.routes.AbstractRoute;
import org.eclipse.ditto.gateway.service.endpoints.routes.RouteBaseProperties;
import org.eclipse.ditto.json.JsonFactory;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.policies.model.PoliciesModelFactory;
import org.eclipse.ditto.policies.model.PolicyId;
import org.eclipse.ditto.policies.model.PolicyImport;
import org.eclipse.ditto.policies.model.PolicyImports;
import org.eclipse.ditto.policies.model.signals.commands.modify.DeletePolicyImport;
import org.eclipse.ditto.policies.model.signals.commands.modify.ModifyPolicyImport;
import org.eclipse.ditto.policies.model.signals.commands.modify.ModifyPolicyImports;
import org.eclipse.ditto.policies.model.signals.commands.query.RetrievePolicyImport;
import org.eclipse.ditto.policies.model.signals.commands.query.RetrievePolicyImports;
import org.apache.pekko.http.javadsl.server.PathMatchers;
import org.apache.pekko.http.javadsl.server.RequestContext;
import org.apache.pekko.http.javadsl.server.Route;
/**
* Builder for creating Akka HTTP routes for Policy {@code /imports}.
*/
final class PolicyImportsRoute extends AbstractRoute {
/**
* Constructs the {@code /imports} route builder.
*
* @param routeBaseProperties the base properties of the route.
* @throws NullPointerException if any argument is {@code null}.
*/
PolicyImportsRoute(final RouteBaseProperties routeBaseProperties) {
super(routeBaseProperties);
}
/**
* Builds the {@code /imports} route.
*
* @return the {@code /imports} route.
*/
Route buildPolicyImportsRoute(final RequestContext ctx, final DittoHeaders dittoHeaders, final PolicyId policyId) {
return concat(
policyImports(ctx, dittoHeaders, policyId),
policyImport(ctx, dittoHeaders, policyId)
);
}
/*
* Describes {@code /imports} route.
*
* @return {@code /imports} route.
*/
private Route policyImports(final RequestContext ctx, final DittoHeaders dittoHeaders,
final PolicyId policyId) {
return pathEndOrSingleSlash(() ->
concat(
get(() -> // GET /imports
handlePerRequest(ctx,
RetrievePolicyImports.of(policyId, dittoHeaders))
),
put(() -> // PUT /imports
ensureMediaTypeJsonWithFallbacksThenExtractDataBytes(ctx, dittoHeaders,
payloadSource ->
handlePerRequest(ctx, dittoHeaders, payloadSource,
policyImportsJson ->
ModifyPolicyImports.of(policyId,
createPolicyImportsForPut(policyImportsJson),
dittoHeaders))
)
)
)
);
}
private static PolicyImports createPolicyImportsForPut(final String jsonString) {
final JsonObject jsonObject = wrapJsonRuntimeException(() -> JsonFactory.newObject(jsonString));
return PoliciesModelFactory.newPolicyImports(jsonObject);
}
/*
* Describes {@code /imports/<importedPolicyId>} route.
*
* @return {@code /imports/<importedPolicyId>} route.
*/
private Route policyImport(final RequestContext ctx, final DittoHeaders dittoHeaders, final PolicyId policyId) {
return rawPathPrefix(PathMatchers.slash().concat(PathMatchers.segment()), importedPolicyId ->
pathEndOrSingleSlash(() ->
concat(
get(() -> // GET /imports/<importedPolicyId>
handlePerRequest(ctx,
RetrievePolicyImport.of(policyId,
PolicyId.of(importedPolicyId),
dittoHeaders))
),
put(() -> // PUT /imports/<importedPolicyId>
ensureMediaTypeJsonWithFallbacksThenExtractDataBytes(ctx, dittoHeaders,
payloadSource ->
handlePerRequest(ctx, dittoHeaders, payloadSource,
policyImportJson -> ModifyPolicyImport
.of(policyId,
createPolicyImportForPut(
policyImportJson,
importedPolicyId),
dittoHeaders))
)
),
delete(() -> // DELETE /imports/<importedPolicyId>
handlePerRequest(ctx,
DeletePolicyImport.of(policyId, PolicyId.of(
importedPolicyId),
dittoHeaders)))
)
)
);
}
private static PolicyImport createPolicyImportForPut(final String jsonString,
final CharSequence importedPolicyString) {
final JsonObject jsonObject = wrapJsonRuntimeException(() -> JsonFactory.newObject(jsonString));
return PoliciesModelFactory.newPolicyImport(PolicyId.of(importedPolicyString), jsonObject);
}
}