4 changed files with 51 additions and 28 deletions
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/** |
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* Copyright © 2016-2018 The Thingsboard Authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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package org.thingsboard.server.service.install.update; |
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import org.thingsboard.server.common.data.SearchTextBased; |
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import org.thingsboard.server.common.data.id.UUIDBased; |
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import org.thingsboard.server.common.data.page.TextPageData; |
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import org.thingsboard.server.common.data.page.TextPageLink; |
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public abstract class PaginatedUpdater<I, D extends SearchTextBased<? extends UUIDBased>> { |
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private static final int DEFAULT_LIMIT = 100; |
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public void updateEntities(I id) { |
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TextPageLink pageLink = new TextPageLink(DEFAULT_LIMIT); |
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boolean hasNext = true; |
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while (hasNext) { |
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TextPageData<D> entities = findEntities(id, pageLink); |
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for (D entity : entities.getData()) { |
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updateEntity(entity); |
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} |
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hasNext = entities.hasNext(); |
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if (hasNext) { |
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pageLink = entities.getNextPageLink(); |
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} |
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} |
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} |
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protected abstract TextPageData<D> findEntities(I id, TextPageLink pageLink); |
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protected abstract void updateEntity(D entity); |
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} |
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