org.jclouds.azure.management.domain.InstanceStatus.java Source code

Introduction

Here is the source code for org.jclouds.azure.management.domain.InstanceStatus.java

Source

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.jclouds.azure.management.domain;

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.base.CaseFormat;

public enum InstanceStatus {

    /**
     * The role state is currently unknown. The state should automatically be
     * resolved once the role state is detected, so no action is required.
     */
    ROLE_STATE_UNKNOWN,

    /**
     * The host agent is currently creating resources for the Virtual Machine
     * (VM).
     */
    CREATING_V_M,

    /**
     * The host agent is starting the Virtual Machine.
     */
    STARTING_V_M,

    /**
     * Windows Azure is creating resources for the role.
     */
    CREATING_ROLE,

    /**
     * Windows Azure is starting the role.
     */
    STARTING_ROLE,

    /**
     * The role instance has started and is ready to be used.
     */
    READY_ROLE,

    /**
     * The role instance is unavailable for requests. This state is usually
     * generated while the role is being created or stopped.
     */
    BUSY_ROLE,

    /**
     * Windows Azure is stopping the role.
     */
    STOPPING_ROLE,

    /**
     * The host agent is stopping the Virtual Machine. This status also
     * indicates that the role has already been stopped.
     */
    STOPPING_V_M,

    /**
     * The Virtual Machine is being deleted by the host agent.
     */
    DELETING_V_M,

    /**
     * The Virtual Machine is not running. This is the final state of the
     * shutdown process, and no other status messages should be received after
     * StoppedVM.
     */
    STOPPED_V_M,

    /**
     * The role has unexpectedly stopped or has failed to start. This status
     * indicates that there is a problem with the role that is causing it to
     * crash or preventing it from starting, and must be corrected before the
     * role can be started. The InstanceStateDetails and InstanceErrorCode
     * fields can hold information about the role error that caused this state,
     * which may be useful for identifying and debugging the problem.
     */
    RESTARTING_ROLE,

    /**
     * The role has continually crashed after being started by Windows Azure.
     * This status indicates that there is a problem with the role that prevents
     * it from starting, and may be generated after the StartingRole even
     * ReadyRole statuses are received. The problem in the role must be found
     * and corrected before the role can be started. The InstanceStateDetails
     * and InstanceErrorCode fields can hold information about the role error
     * that caused this state, which may be useful for identifying and debugging
     * the problem.
     */
    CYCLING_ROLE,

    /**
     * The role has continually failed to start. This status indicates that
     * there is a problem with the role that prevents it from starting, and may
     * be generated after the process returns StartingRole. The problem in the
     * role must be found and corrected before the role can be started. The
     * InstanceStateDetails and InstanceErrorCode fields can hold information
     * about the role error that caused this state, which may be useful for
     * identifying and debugging the problem.
     */
    FAILED_STARTING_ROLE,

    /**
     * A Windows Azure or container error is preventing the Virtual Machine from
     * starting. This status is generated by Windows Azure, and does not
     * indicate an error with the role. It may be generated after the
     * StartingRole state.
     */
    FAILED_STARTING_V_M,

    /**
     * The role has timed out before receiving a status message and is not
     * responding to requests.
     */
    UNRESPONSIVE_ROLE,

    /**
     * UNDOCUMENTED BY AZURE
     */
    PROVISIONING;

    public String value() {
        return CaseFormat.UPPER_UNDERSCORE.to(CaseFormat.UPPER_CAMEL, name());
    }

    @Override
    public String toString() {
        return value();
    }

    public static InstanceStatus fromValue(String type) {
        try {
            return valueOf(CaseFormat.UPPER_CAMEL.to(CaseFormat.UPPER_UNDERSCORE, checkNotNull(type, "type")));
        } catch (IllegalArgumentException e) {
            return ROLE_STATE_UNKNOWN;
        }
    }
}