Extract delegating part of ImmutablePolicyBuilderLabelScoped to abstr…

…act class to allow reuse

Signed-off-by: Yannic Klem <Yannic.Klem@bosch.io>

policies/model/src/main/java/org/eclipse/ditto/policies/model/AbstractPolicyBuilderLabelScoped.java

@@ -0,0 +1,212 @@
+/*
+ * 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.policies.model;
+
+import java.time.Instant;
+
+import javax.annotation.Nullable;
+
+import org.eclipse.ditto.base.model.entity.metadata.Metadata;
+
+public abstract class AbstractPolicyBuilderLabelScoped implements PolicyBuilder.LabelScoped {
+
+    private final PolicyBuilder delegate;
+    private final Label label;
+
+    protected AbstractPolicyBuilderLabelScoped(final PolicyBuilder delegate,
+            final Label label) {
+        this.delegate = delegate;
+        this.label = label;
+    }
+
+    @Override
+    public LabelScoped forLabel(final Label label) {
+        return ImmutablePolicyBuilderLabelScoped.newInstance(delegate, label);
+    }
+
+    @Override
+    public Label getLabel() {
+        return label;
+    }
+
+    @Override
+    public PolicyBuilder exitLabel() {
+        return delegate;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setId(final PolicyId id) {
+        delegate.setId(id);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setLifecycle(@Nullable final PolicyLifecycle lifecycle) {
+        delegate.setLifecycle(lifecycle);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setRevision(@Nullable final PolicyRevision revision) {
+        delegate.setRevision(revision);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setModified(@Nullable final Instant modified) {
+        delegate.setModified(modified);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setCreated(@Nullable final Instant created) {
+        delegate.setCreated(created);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setMetadata(@Nullable final Metadata metadata) {
+        delegate.setMetadata(metadata);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped set(final PolicyEntry entry) {
+        delegate.set(entry);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setAll(final Iterable<PolicyEntry> entries) {
+        delegate.setAll(entries);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped remove(final CharSequence label) {
+        delegate.remove(label);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped remove(final PolicyEntry entry) {
+        delegate.remove(entry);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped removeAll(final Iterable<PolicyEntry> entries) {
+        delegate.removeAll(entries);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setSubjectsFor(final CharSequence label, final Subjects subjects) {
+        delegate.setSubjectsFor(label, subjects);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setSubjectFor(final CharSequence label, final Subject subject) {
+        delegate.setSubjectFor(label, subject);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped removeSubjectFor(final CharSequence label, final CharSequence subjectId) {
+        delegate.removeSubjectFor(label, subjectId);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped removeSubjectFor(final CharSequence label, final Subject subject) {
+        delegate.removeSubjectFor(label, subject);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setResourcesFor(final CharSequence label, final Resources resources) {
+        delegate.setResourcesFor(label, resources);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setResourceFor(final CharSequence label, final Resource resource) {
+        delegate.setResourceFor(label, resource);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped removeResourceFor(final CharSequence label,
+            final ResourceKey resourceKey) {
+
+        delegate.removeResourceFor(label, resourceKey);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped removeResourceFor(final CharSequence label, final Resource resource) {
+        delegate.removeResourceFor(label, resource);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setPermissionsFor(final CharSequence label, final ResourceKey resourceKey,
+            final EffectedPermissions effectedPermissions) {
+
+        delegate.setPermissionsFor(label, resourceKey, effectedPermissions);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setGrantedPermissionsFor(final CharSequence label,
+            final ResourceKey resourceKey, final Permissions grantedPermissions) {
+
+        delegate.setGrantedPermissionsFor(label, resourceKey, grantedPermissions);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setGrantedPermissionsFor(final CharSequence label,
+            final ResourceKey resourceKey,
+            final String grantedPermission,
+            final String... furtherGrantedPermissions) {
+
+        delegate.setGrantedPermissionsFor(label, resourceKey, grantedPermission, furtherGrantedPermissions);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setRevokedPermissionsFor(final CharSequence label,
+            final ResourceKey resourceKey, final Permissions revokedPermissions) {
+
+        delegate.setRevokedPermissionsFor(label, resourceKey, revokedPermissions);
+        return this;
+    }
+
+    @Override
+    public PolicyBuilder.LabelScoped setRevokedPermissionsFor(final CharSequence label,
+            final ResourceKey resourceKey,
+            final String revokedPermission,
+            final String... furtherRevokedPermissions) {
+
+        delegate.setRevokedPermissionsFor(label, resourceKey, revokedPermission, furtherRevokedPermissions);
+        return this;
+    }
+
+    @Override
+    public Policy build() {
+        return delegate.build();
+    }
+
+}