com.nirmata.workflow.admin.TaskDetails.java Source code

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Here is the source code for com.nirmata.workflow.admin.TaskDetails.java

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/**
 * Copyright 2014 Nirmata, Inc.
 *
 * 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.nirmata.workflow.admin;

import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableMap;
import com.nirmata.workflow.models.Task;
import com.nirmata.workflow.models.TaskId;
import com.nirmata.workflow.models.TaskType;
import java.util.Map;
import java.util.Optional;

/**
 * Contains the meta-data and type from a submitted {@link Task}
 */
public class TaskDetails {
    private final TaskId taskId;
    private final Optional<TaskType> taskType;
    private final Map<String, String> metaData;

    public TaskDetails(TaskId taskId, TaskType taskType, Map<String, String> metaData) {
        this.taskId = Preconditions.checkNotNull(taskId, "taskId cannot be null");
        this.taskType = Optional.ofNullable(taskType);
        metaData = Preconditions.checkNotNull(metaData, "metaData cannot be null");

        this.metaData = ImmutableMap.copyOf(metaData);
    }

    public TaskId getTaskId() {
        return taskId;
    }

    public boolean isExecutable() {
        return taskType.isPresent();
    }

    public TaskType getTaskType() {
        return taskType.get();
    }

    public Map<String, String> getMetaData() {
        return metaData;
    }

    public boolean matchesTask(Task task) {
        if (task == null) {
            return false;
        }
        TaskDetails rhs = new TaskDetails(task.getTaskId(), task.isExecutable() ? task.getTaskType() : null,
                task.getMetaData());
        return this.equals(rhs);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        TaskDetails that = (TaskDetails) o;

        if (!metaData.equals(that.metaData)) {
            return false;
        }
        if (!taskId.equals(that.taskId)) {
            return false;
        }
        //noinspection RedundantIfStatement
        if (!taskType.equals(that.taskType)) {
            return false;
        }

        return true;
    }

    @Override
    public int hashCode() {
        int result = taskId.hashCode();
        result = 31 * result + taskType.hashCode();
        result = 31 * result + metaData.hashCode();
        return result;
    }

    @Override
    public String toString() {
        return "TaskDetails{" + "taskId=" + taskId + ", taskType=" + taskType + ", metaData=" + metaData + '}';
    }
}