/
ModifyResource.java
executable file
·233 lines (204 loc) · 9.01 KB
/
ModifyResource.java
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/*
* Copyright (c) 2017 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.signals.commands.policies.modify;
import java.util.Objects;
import java.util.Optional;
import java.util.function.Predicate;
import javax.annotation.Nullable;
import javax.annotation.concurrent.Immutable;
import org.eclipse.ditto.json.JsonFactory;
import org.eclipse.ditto.json.JsonField;
import org.eclipse.ditto.json.JsonFieldDefinition;
import org.eclipse.ditto.json.JsonObject;
import org.eclipse.ditto.json.JsonObjectBuilder;
import org.eclipse.ditto.json.JsonPointer;
import org.eclipse.ditto.json.JsonValue;
import org.eclipse.ditto.model.base.headers.DittoHeaders;
import org.eclipse.ditto.model.base.json.FieldType;
import org.eclipse.ditto.model.base.json.JsonParsableCommand;
import org.eclipse.ditto.model.base.json.JsonSchemaVersion;
import org.eclipse.ditto.model.policies.Label;
import org.eclipse.ditto.model.policies.PoliciesModelFactory;
import org.eclipse.ditto.model.policies.PolicyIdValidator;
import org.eclipse.ditto.model.policies.Resource;
import org.eclipse.ditto.model.policies.ResourceKey;
import org.eclipse.ditto.signals.commands.base.AbstractCommand;
import org.eclipse.ditto.signals.commands.base.CommandJsonDeserializer;
/**
* This command modifies a {@link Resource} of a {@link org.eclipse.ditto.model.policies.PolicyEntry}'s {@link
* org.eclipse.ditto.model.policies.Resources}.
*/
@Immutable
@JsonParsableCommand(typePrefix = ModifyResource.TYPE_PREFIX, name = ModifyResource.NAME)
public final class ModifyResource extends AbstractCommand<ModifyResource>
implements PolicyModifyCommand<ModifyResource> {
/**
* Name of this command.
*/
public static final String NAME = "modifyResource";
/**
* Type of this command.
*/
public static final String TYPE = TYPE_PREFIX + NAME;
static final JsonFieldDefinition<String> JSON_LABEL =
JsonFactory.newStringFieldDefinition("label", FieldType.REGULAR, JsonSchemaVersion.V_2);
static final JsonFieldDefinition<String> JSON_RESOURCE_KEY =
JsonFactory.newStringFieldDefinition("resourceKey", FieldType.REGULAR, JsonSchemaVersion.V_2);
static final JsonFieldDefinition<JsonObject> JSON_RESOURCE =
JsonFactory.newJsonObjectFieldDefinition("resource", FieldType.REGULAR, JsonSchemaVersion.V_2);
private final String policyId;
private final Label label;
private final Resource resource;
private ModifyResource(final String policyId,
final Label label,
final Resource resource,
final DittoHeaders dittoHeaders) {
super(TYPE, dittoHeaders);
PolicyIdValidator.getInstance().accept(policyId, dittoHeaders);
this.policyId = policyId;
this.label = label;
this.resource = resource;
}
/**
* Creates a command for modifying {@code Resource} of a {@code Policy}'s {@code PolicyEntry}.
*
* @param policyId the identifier of the Policy.
* @param label the Label of the PolicyEntry.
* @param resource the Resource to modify.
* @param dittoHeaders the headers of the command.
* @return the command.
* @throws NullPointerException if any argument is {@code null}.
*/
public static ModifyResource of(final String policyId,
final Label label,
final Resource resource,
final DittoHeaders dittoHeaders) {
Objects.requireNonNull(policyId, "The Policy identifier must not be null!");
Objects.requireNonNull(label, "The Label must not be null!");
Objects.requireNonNull(resource, "The Resource must not be null!");
return new ModifyResource(policyId, label, resource, dittoHeaders);
}
/**
* Creates a command for modifying {@code Resource} of a {@code Policy}'s {@code PolicyEntry} from a JSON string.
*
* @param jsonString the JSON string of which the command is to be created.
* @param dittoHeaders the headers of the command.
* @return the command.
* @throws NullPointerException if {@code jsonString} is {@code null}.
* @throws IllegalArgumentException if {@code jsonString} is empty.
* @throws org.eclipse.ditto.json.JsonParseException if the passed in {@code jsonString} was not in the expected
* format.
*/
public static ModifyResource fromJson(final String jsonString, final DittoHeaders dittoHeaders) {
return fromJson(JsonFactory.newObject(jsonString), dittoHeaders);
}
/**
* Creates a command for modifying {@code Resource} of a {@code Policy}'s {@code PolicyEntry} from a JSON string.
*
* @param jsonObject the JSON object of which the command is to be created.
* @param dittoHeaders the headers of the command.
* @return the command.
* @throws NullPointerException if {@code jsonObject} is {@code null}.
* @throws org.eclipse.ditto.json.JsonParseException if the passed in {@code jsonObject} was not in the expected
* format.
*/
public static ModifyResource fromJson(final JsonObject jsonObject, final DittoHeaders dittoHeaders) {
return new CommandJsonDeserializer<ModifyResource>(TYPE, jsonObject).deserialize(() -> {
final String policyId = jsonObject.getValueOrThrow(PolicyModifyCommand.JsonFields.JSON_POLICY_ID);
final Label label = PoliciesModelFactory.newLabel(jsonObject.getValueOrThrow(JSON_LABEL));
final String resourceKey = jsonObject.getValueOrThrow(JSON_RESOURCE_KEY);
final JsonObject resourceJsonObject = jsonObject.getValueOrThrow(JSON_RESOURCE);
final Resource resource =
PoliciesModelFactory.newResource(ResourceKey.newInstance(resourceKey), resourceJsonObject);
return of(policyId, label, resource, dittoHeaders);
});
}
/**
* Returns the {@code Label} of the {@code PolicyEntry} whose {@code Resource} to modify.
*
* @return the Label of the PolicyEntry whose Resource to modify.
*/
public Label getLabel() {
return label;
}
/**
* Returns the {@code Resource} to modify.
*
* @return the Resource to modify.
*/
public Resource getResource() {
return resource;
}
/**
* Returns the identifier of the {@code Policy} whose {@code PolicyEntry} to modify.
*
* @return the identifier of the Policy whose PolicyEntry to modify.
*/
@Override
public String getId() {
return policyId;
}
@Override
public Optional<JsonValue> getEntity(final JsonSchemaVersion schemaVersion) {
return Optional.ofNullable(resource.toJson(schemaVersion, FieldType.regularOrSpecial()));
}
@Override
public JsonPointer getResourcePath() {
final String path = "/entries/" + label + "/resources/" + resource.getResourceKey();
return JsonPointer.of(path);
}
@Override
protected void appendPayload(final JsonObjectBuilder jsonObjectBuilder, final JsonSchemaVersion schemaVersion,
final Predicate<JsonField> thePredicate) {
final Predicate<JsonField> predicate = schemaVersion.and(thePredicate);
jsonObjectBuilder.set(PolicyModifyCommand.JsonFields.JSON_POLICY_ID, policyId, predicate);
jsonObjectBuilder.set(JSON_LABEL, label.toString(), predicate);
jsonObjectBuilder.set(JSON_RESOURCE_KEY, resource.getFullQualifiedPath(), predicate);
jsonObjectBuilder.set(JSON_RESOURCE, resource.toJson(schemaVersion, thePredicate), predicate);
}
@Override
public Category getCategory() {
return Category.MODIFY;
}
@Override
public ModifyResource setDittoHeaders(final DittoHeaders dittoHeaders) {
return of(policyId, label, resource, dittoHeaders);
}
@Override
protected boolean canEqual(@Nullable final Object other) {
return other instanceof ModifyResource;
}
@SuppressWarnings("squid:MethodCyclomaticComplexity")
@Override
public boolean equals(@Nullable final Object obj) {
if (this == obj) {
return true;
}
if (null == obj || getClass() != obj.getClass()) {
return false;
}
final ModifyResource that = (ModifyResource) obj;
return that.canEqual(this) && Objects.equals(policyId, that.policyId) && Objects.equals(label, that.label)
&& Objects.equals(resource, that.resource) && super.equals(obj);
}
@SuppressWarnings("squid:S109")
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), policyId, label, resource);
}
@Override
public String toString() {
return getClass().getSimpleName() + " [" + super.toString() + ", policyId=" + policyId + ", label=" + label
+ ", resource=" + resource + "]";
}
}