com.creactiviti.piper.core.task.MongoTaskExecutionRepository.java Source code

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Here is the source code for com.creactiviti.piper.core.task.MongoTaskExecutionRepository.java

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/*
 * Copyright 2016-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.creactiviti.piper.core.task;

import com.creactiviti.piper.core.DSL;
import com.google.common.collect.ImmutableList;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;

import javax.annotation.PostConstruct;
import java.util.ArrayList;
import java.util.List;

import static com.mongodb.client.model.Aggregates.*;
import static com.mongodb.client.model.Filters.and;
import static com.mongodb.client.model.Filters.eq;
import static com.mongodb.client.model.Indexes.ascending;
import static com.mongodb.client.model.Updates.push;
import static com.mongodb.client.model.Updates.set;
import static java.text.MessageFormat.format;
import static java.util.stream.Stream.of;

public class MongoTaskExecutionRepository implements TaskExecutionRepository {
    private final MongoCollection<TaskExecution> collection;

    public MongoTaskExecutionRepository(MongoDatabase database) {
        this.collection = database.getCollection("job").withDocumentClass(TaskExecution.class);
    }

    @Override
    public TaskExecution findOne(String aId) {
        return collection
                .aggregate(ImmutableList.of(unwind('$' + DSL.EXECUTION),
                        match(eq(format("{0}._id", DSL.EXECUTION), aId)), replaceRoot('$' + DSL.EXECUTION)))
                .first();
    }

    @Override
    public List<TaskExecution> findByParentId(String aParentId) {
        return collection
                .aggregate(ImmutableList.of(unwind('$' + DSL.EXECUTION),
                        match(eq(format("{0}.parentId", DSL.EXECUTION), aParentId)), unwind('$' + DSL.EXECUTION)))
                .into(new ArrayList<>());
    }

    @Override
    public void create(TaskExecution aTaskExecution) {
        collection.updateOne(eq("_id", aTaskExecution.getJobId()), push(DSL.EXECUTION, aTaskExecution));
    }

    @Override
    public TaskExecution merge(TaskExecution aTaskExecution) {
        collection.updateOne(and(eq("_id", aTaskExecution.getJobId()), eq("execution._id", aTaskExecution.getId())),
                set(format("{0}.$", DSL.EXECUTION), aTaskExecution));

        return aTaskExecution;
    }

    @Override
    public List<TaskExecution> getExecution(String aJobId) {
        return collection.aggregate(ImmutableList.of(match(eq("_id", aJobId)), unwind('$' + DSL.EXECUTION),
                replaceRoot('$' + DSL.EXECUTION))).into(new ArrayList<>());
    }

    @PostConstruct
    void ensureIndexes() {
        of(DSL.CREATE_TIME, DSL.START_TIME, DSL.END_TIME, DSL.JOB_ID, DSL.STATUS)
                .forEach(it -> collection.createIndex(ascending(format("{0}.{1}", DSL.EXECUTION, it))));
    }
}